X-am 2500 Technical Manual Edition 01 Nov 2012

Technical Manual

36 Pages

File Type: PDF

File Size: 7.02 MB

File Name: x-am_2500_technical_manual_edition_01_nov_2012.pdf

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Page 1

Dräger X-am 2500 (MQG 0011) Technical Manual

Content

Content 1 1.1 1.2

For Your Safety...4 General safety statements...4 Definitions of alert icons...4

2 2.1 2.1.1 2.1.2 2.1.3 2.1.4 2.2 2.3 2.3.1 2.3.2 2.3.3

Description...5 Product overview...5 Front...5 Rear side...5 Display...5 Special symbols...5 Intended use...6 Approvals...6 Marking...6 Permitted power packs...6 Safety Instructions...7

3 3.1 3.1.1 3.1.2 3.1.3 3.1.4 3.2 3.3 3.3.1 3.3.2 3.3.3 3.3.4 3.4 3.4.1

3.5 3.6 3.6.1 3.6.2 3.6.3 3.6.4 3.6.5 3.6.6

Use...8 Preparations for use...8 Charging the batteries...8 Replacing the batteries / rechargeable batteries . . .9 Switching on the instrument...9 Switching off the instrument...10 Before entering the workplace...10 Configuration...11 Standard gas configuration...11 Standard instrument configuration...12 Configuring the device...12 Export data memory and display graphically...12 Running the bump test...13 Manual implementation without documentation of the results in the instrument memory...13 Menu implementation with the documentation of results in the instrument memory...13 Automatic implementation with the Bump Test Station...14 During use...14 Identifying alarms...15 Concentration pre-alarm A1...15 Concentration main alarm A2...15 STEL / TWA exposure alarm...15 Battery pre-alarm...15 Battery main alarm...15 Instrument alarm...15

4 4.1 4.2 4.3 4.3.1 4.3.2 4.3.3 4.4 4.4.1 4.4.2

Menu functions...16 Activating the Info mode...16 Opening Info-Off Mode...16 Quick Menu...16 Quick menu functions...16 Opening the Quick Menu...16 Quick menu "Displaying and deleting peak values" 16 Calibration Menu...16 Calibration menu functions...16 Open the Calibration Menu...16

5 5.1 5.2 5.3 5.3.1

Calibrate instrument...17 Adjustment interval:...17 Run fresh air calibration...17 1-button calibration...18 Calibrating the sensitivity for an individual measuring channel...19 Sensitivity calibration for CatEx...19

3.4.2 3.4.3

5.3.2

Dräger X-am 2500

Operation with pump... 21

Replacing the sensors... 21

8 8.1 8.2

Troubleshooting... 22 Warning messages... 22 Fault messages... 24

9 9.1 9.2

Maintenance... 27 Maintenance table... 27 Cleaning... 27

10 10.1 10.2 10.3

Disposal... 27 WEEE... 27 Battery disposal... 27 Electrochemical sensors... 27

11 11.1 11.2

Technical data... 28 X-am 2500... 28 Sensor Data... 29

Order list... 31

Declaration of Conformity... 32

For Your Safety

1.1

General safety statements



Before using this product, carefully read the associated Instructions for Use. This document does not replace the Instructions for Use.

1.2

Definitions of alert icons

The following alert icons are used in this document to provide and highlight areas of the associated text that require a greater awareness by the user. A definition of the meaning of each icon is as follows:

WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, could result in physical injury, or damage to the product or environment. It may also be used to alert against unsafe practices. NOTICE Indicates additional information on how to use the product.

Dräger X-am 2500

Description

2.1

Product overview

2.1.1

Front

2.1.3

Display

CH4

1 2

H 2S

CH4

0.0

%UEG

0.0

%UEG

20.9

Vol%

20.9

Vol%

0.0

ppm

0.0

ppm

X-am 2500

6 00333366_de.eps

4 00133366.eps

1 2 3 4 5 6 7

otherwise: 4 Measured gas display 5 Measured value display with unit 6 Special symbols

Gas entry Alarm LED Horn OK key key Display Tool for changing sensor

2.1.2

The following only shows the instrument version with 4 measuring channels. 2.1.4

Rear side

1 2 6 3 5

4 00233366.eps

1 2 3 4 5 6

IR interface Fastening clip Nameplate Charging contacts Power pack Serial no.

Dräger X-am 2500

Display for 4 measuring channels: 1 Measured gas display with unit 2 Measuring value display 3 Special symbols

Special symbols Fault message, see section 4.1 on page 16 Warning message, see section 4.1 on page 16 Display of peak values for all measured gases, see section 4.1 on page 16 The exposure evaluation display (TWA) for measured gases, e.g. H2S and CO, see section 4.1 on page 16 The exposure evaluation display (STEL) for measured gases, e.g. H2S und CO, see section 4.1 on page 16 The instrument is set to the bump test function, see section 3.4 on page 13 The instrument is set to the fresh air calibration function, see section 5.2 on page 17 The instrument is set to the 1-button calibration/ adjustment function, see section 5.3 on page 18 The instrument is set to the single gas calibration function, see section 5.3.1 on page 19 Function for password input is active, see section 4.4 on page 16 Battery / rechargeable battery 100 % full Battery / rechargeable battery 2/3 full Battery / rechargeable battery 1/3 full Battery / rechargeable battery empty

Description

2.2

Intended use

2.3.2

Portable gas detection instrument for the continuous monitoring of the concentration of several gases in the ambient air within the working area and in explosion-hazard areas. Independent measurement of up to 4 gases, in accordance with the installed Dräger sensors. Areas subject to explosion hazards, classified by zones The instrument is intended for the use in areas that are at risk for explosions in Zone 0, Zone 1 or Zone 2 or in mines at risk due to black damp. It is intended for use within a temperature range of -20 °C to +50 °C, and for areas in which gases of explosion groups IIA, IIB or IIC and temperature class T3 or T4 (depending on the batteries and rechargeable battery) may be present. For zone 0, the temperature class is limited to T3. If used in mines, the instrument is only to be used in areas known to have a low risk of mechanical impact. Areas subject to explosion hazards, classified by divisions The instrument is intended for the use in areas that are at risk for explosions of Class I&II, Div. 1 or Div. 2. It is intended for use within a temperature range of –20 °C to +50 °C, and for areas in which gases or dusts of groups A, B, C, D or E, F, G, and temperature class T3 or T4 (depending on the batteries and rechargeable battery) may be present.

2.3

Approvals

CE marking:

2.3.1

Permitted power packs

Power pack 83 22 237; approved as type ABT 0100 Temperature class T4 –20 °C ≤ Ta ≤ +50 °C use with alkaline batteries Duracell Procell MN15002 Temperature class T3 –20 °C ≤ Ta ≤ +40 °C use with NiMH rechargeable batteries GP 180AAHC2 (1800 mAh) or with alkaline batteries Varta Type 40062 Varta Type 41062 Panasonic LR6 Powerline NiMH power pack T4 (order no. 83 18 704); approved as HBT 0000 Temperature class T4 –20 °C ≤ Ta ≤ +50 °C NiMH power pack T4 HC (order no. 83 22 244); approved as HBT 0100 Temperature class T4 –20 °C ≤ Ta ≤ +50 °C

Electromagnetic compatibility (Directive 2004/108/EC) Explosion protection (Directive 94/9/ EEC)

Marking

Dräger Safety

Type: MQG 0011

23560 Lübeck, Germany

0158

C22.2 No.152 I M1 / II 1G for comb. sensor I M2 / II 2G Um=4.6V Im=1.3A Ex ia I/IIC T3 Ma/Ga Ex d ia I/IIC T4/T3 Mb/Gb BVS 10 ATEX E 080X IECEx BVS 10.0053X ANZEx 11.2003X PFG 10 G 001X Intrinsically safe Ex ia, CSA 11 1800517 CSA: Class I, Div. 1, Gr. A,B,C,D TC T4/T3 Class I, Zone 0, A/Ex ia IIC T3 /Ga Class I, Zone 1, A/Ex d ia IIC T4/T3 /Gb -20°C ≤ Ta ≤ +50/+40°C: see Battery Pack! For TC T4/T3: see Battery Pack! Warning: Read manual for safety precautions. Do not change or charge batteries in haz loc.

Serial no.1 on separate sticker 1

The year of construction is coded by the third capital letter of the serial number: D = 2012, E = 2013, F = 2014, H = 2015, J = 2016, K = 2017, L = 2018, etc. Example: Serial number AREH-0054, the third letter is E, so the year of manufacture is 2013.

Not subject to BVS10 ATEX E 080X and PFG 10 G 001X performance approval.

Dräger X-am 2500

Description 2.3.3

Safety Instructions WARNING Do not replace or charge batteries in potentially explosive areas. Explosion hazard! Charge the NiMH power pack T4 (type HBT 0000) or T4 HC (type HBT 0100) with the associated Dräger charger. Charge NiMH single cells for ABT 0100 battery holder in accordance with the manufacturer's specifications. Ambient temperature during the charging process: 0 to +40 °C. To reduce the danger of explosion, do not mix new batteries with old batteries and do not mix batteries made by different manufacturers. Always disconnect the instrument from the power pack before carrying out any maintenance operations. Substitution of components may impair intrinsic safety. Only use power packs ABT 0100 (order no. 83 22 237), HBT 0000 (order no. 83 18 704) or HBT 0100 (order no. 83 22 244). See marking on power pack for approved batteries and related temperature classes. Not tested in an oxygen-enriched atmosphere (>21 % O2). High off-scale readings may indicate an explosive concentration.

CAUTION Re. CSA approval: Before use each day, test the sensitivity using a known concentration of the gas being measured, corresponding to between 25 and 50 % of the maximum concentration. The accuracy must be in a range of 0 to +20 % of the actual value. Correct the accuracy via adjustment if necessary.

Only the functions of the part of the equipment used to measure flammable gases are measured as part of the CSA approval.

Dräger X-am 2500

Use

3.1

Preparations for use



3.1.1

Charging the batteries WARNING Explosion hazard! Do not charge underground or in explosion hazard areas! The chargers are not designed in accordance with the regulations for fire damp and explosion protection. Charge the NiMH power pack T4 (type HBT 0000) or T4 HC (type HBT 0100) with the associated Dräger charger. Charge NiMH single cells for ABT 0100 battery holder in accordance with the manufacturer's specifications. Ambient temperature during the charging process: 0 to +40 °C.

Even if the instrument is not used, Dräger recommends storing the instrument in the charging cradle (chargingmodule X-am 1/2/5000, order no. 83 18 639).

  

Charging with the multiple charging station  A maximum of 20 instruments can be charged at the same time on the power pack (order no. 83 18 805) of the multiple charging station.  When attaching the charging modules, disconnect the power pack from the mains supply!

2 X-am 2500

Ex %UEG CO2 ppm

O2 Vol% CO ppm H2S ppm

02733366.eps

Position the instrument on an even and level surface. 1. Turn the slots of the interlock into a horizontal position by using a screwdriver or coin. 2. Insert the fastening lug (2) of the charger module (simultaneous power feed) until it engages. 3. Close the lock (1) with a quarter turn (slot is positioned vertically). 4. Attach additional charging modules in the same way. 5. Connect the power pack to the mains.  The green "Mains" LED (1) is on. 6. Insert the switched off instrument into the charger module.  Display LED (5) on the charging cradle: Charging 

Fault

NOTICE

To maintain the lifetime of the batteries, charging is temperature controlled and only performed in a temperature range of 5 to 35 °C. When outside this temperature range, the charging automatically interrupted and automatically recommenced after the temperature range has been reached again. The charging time is typically 4 hours. A new NiMH power pack reaches its full capacity after three complete charging/discharging cycles. Never store the instrument for extended periods without being connected to a power source (maximum of 2 months) because the internal buffer battery will drain.



Before using the instrument for the first time, insert the batteries provided or a charged NiMH power pack T4 (type HBT 0000; order no. 83 18 704) / T4 HC (type HBT 0100; order no. 83 22 244), see section 3.1.2 on page 9. The instrument is now ready for operation.



Full If a fault occurs:  Remove the instrument from the charging module and insert it again. If the fault still occurs, have the charging module repaired.  It takes approx. 4 hours to fully charge an empty rechargeable battery.



CAUTION A short circuit of the charging contacts in the charging modules, e. g., by metallic objects that have fallen in, does not result in damage to the charging station. It should, however, be avoided due to possible heating hazards and incorrect displays on the charger module. In the event of a short circuit or if the power pack is overloaded:  The red "Overload" LED (3) is on, and an audible alarm sounds.  After the fault has been corrected, the alarm is switched off automatically and the charging process is restarted.  In the event of a power failure, the instruments already charged will be protected from discharging.

CAUTION Always connect or disconnect the charging modules individually and not in groups in order to prevent the charging station from becoming damaged. During transportation, the power pack and the charging modules should also always be handled individually and without inserted instruments.

Dräger X-am 2500

Use Charge using charger module and plug-in power pack or vehicle charging adapter

–

83 16 994 (100 ... 240 V) 83 15 635 (100 ... 240 V)

X-am 2500

Ex %UEG CO2 ppm O2 Vol% CO ppm H2S ppm

3 1 45 30 057

02633366.eps

02833366.eps

When using the power pack (order no. 83 16 994), up to 5 instruments can be charged at the same time, with power pack (order no. 83 15 635) up to 2 instruments. The power pack contained in the rechargeable battery and charging set (order no. 83 18 785) is suitable for charging one instrument. When using the vehicle charging adapter (order no. 45 30 057) it is recommended that you supply every charging module separately.



The charging process is carried out analogous to charging with the multiple charging station.



3.1.2

Replacing the batteries / rechargeable batteries

1. Switching off the instrument: OK key and key are held down simultaneously. 2. Loosen the screw (2.0 mm hexagon socket) on the power pack and remove the power pack.  With battery holder (order no. 83 22 237): Replace alkaline batteries or NiMHy rechargeable batteries. Ensure correct polarity.  With the T4 NiMH power pack (type HBT 0000) / T4 HC (type HBT 0100): Completely replace the power pack. 3. Insert the power pack into the instrument and tighten the screw, the instrument switches on automatically. After replacing the T4 NiMH power pack (type HBT 0000)/ T4 HC (type HBT 0100), a full charge is recommended.

WARNING

Explosion hazard! Do not throw used batteries into fire or try to open them by force.

After the batteries have been replaced: The settings and data are stored when the battery is replaced. The sensors warm up again.



Do not replace or charge batteries in a hazardous area.

3.1.3

Batteries / rechargeable batteries are part of the Ex approval. Only the following types may be used:  Alkaline batteries – T3 – (non rechargeable!)  Panasonic LR6 Powerline 1  Varta Type 4106 (power one) or 1  Varta Type 4006 (industrial)  Alkaline batteries – T4 – (non rechargeable!) 1  Duracell Procell MN1500  NiMHy rechargeable batteries – T3 – (rechargeable) 1  GP 180AAHC (1800 mAh) max. 40 °C ambient temperature.

1. Hold down the [OK] button for approx. 3 seconds until the » 3 . 2 . 1 « countdown shown on the display has elapsed.  All the display segments, including the visual, audible and vibration alarms, are activated for a short time.  The software version is displayed.  The instrument performs a self-test.  The sensor that is up next for calibration/adjustment is displayed with the remaining days until the next calibration/adjustment e. g. » Ex %LEL CAL 20 «.  The time until the bump test interval elapses is displayed in days, e.g. » bt 123 «.  All alarm thresholds A1 and A2 as well as » « (TWA)1 3) and » « (STEL) for H2S and CO are displayed consecutively.  During the warm-up period of the sensors, the respective display of the measured value flashes and the special symbol » « (for warning) is displayed. No alarms are issued during the warm-up period of the sensors. See the Technical Handbook for details regarding accelerated warm-up. 2. Press the [OK] key to cancel the display of the activation sequence.

Charge the NiMH power pack T4 (type HBT 0000) or T4 HC (type HBT 0100) with the associated Dräger charger. Charge NiMH rechargeable batteries for battery holder ABT 0100 in accordance with the manufacturer's specifications. Ambient temperature during the charging process: 0 to +40 °C. 1) Not part of the measurement performance tests BVS10 ATEX E 080X and PFG 10 G 001X.

Dräger X-am 2500

Switching on the instrument

Only when activated in the instrument configuration. Delivery status: not activated.

Use 3.1.4

Switching off the instrument

Press and hold the [OK] key and [ + ] key simultaneously until the countdown » 3 . 2 . 1 « shown on the display has elapsed. Before the instrument is switched off, the visual, audible and vibration alarms are activated for a short time.



3.2

Before entering the workplace WARNING Before making safety-related measurements, check the adjustment and adjust as needed, and check all alarm elements. A bump test must be performed according to the national regulations.

1. Switch on the instrument. The current measured values are shown in the display. 2. Observe any warning » « or fault messages » «. The instrument can be operated normally. If the warning message does not disappear automatically during operation, the instrument must be serviced after the end of use. The instrument is not ready to measure and requires maintenance.

WARNING Fractions of catalytic poisons in the measuring gas (e.g. volatile silicone, sulphur, heavy metal compounds or halogenated hydrocarbon) can damage the CatEx sensor. If the CatEx sensor can no longer be calibrated to the target concentration, the sensor must be replaced. In case of measurements in an oxygen-deficient atmosphere (<8 Vol.-% O2) the CatEx sensor may show incorrect displays; in this case, a reliable measurement with a CatEx sensor is not possible. In an oxygen enriched atmosphere (>22 Vol.-% O2), the electrical operational safety cannot be guaranteed; switch off instrument or leave work station.

3. Check that the gas inlet opening on the instrument is not covered.

Dräger X-am 2500

Use

Alarm A1 1) can be acknowledged

Measuring range 1

threshold

DrägerSensor

CatEx 125 PR [%LEL] XXS O2 [Vol.-%]

0 to 100 0 to 25

XXS CO [ppm] XXS H2S LC [ppm]

0 to 2000 0 to 100

19 2 30 1.6

XXS NO2 [ppm]

0 to 50

XXS SO2 [ppm]

0 to 100

Alarm A2 1)

self-latching

Standard gas configuration

can be acknowledged

3.3.1

threshold

Configuration

self-latching

3.3

yes no

no yes

40 23

no no

yes yes

no no

60 3.2

no no

yes yes

yes

1) Different settings can be selected to meet customer requirements on delivery. The current setting can be checked and changed with the Dräger CC Vision software. A version of the CC-Vision software that can be used for Dräger X-am 2500 is available for download from the product page for the X-am 2500 at the following web address: www.draeger.com 2) With O2, A1 is the lower alarm threshold: an alarm is triggered if the value is too low.

Dräger X-am 2500

Use 3.3.2

3.3.4

Standard instrument configuration

Bump test in Quick Menu

Quick bump test

Fresh air calibration in the Quick Menu 1)

Life sign - visual only 1)

Switching off 1)

allowed

LEL factor

(CH4)

Export data memory and display graphically

To read the database of the instrument and display it graphically, the instrument must be connected with a PC. The installed Dräger GasVision PC software is used for exporting and displaying the database.  Observe the documentation and online help of the software.

4.4 (vol. %) (4.4 vol. % corresponds to 100 %LEL)

Averaging time 1)

15 minutes for STEL 8 hours for TWA

Changing the configuration: see “Replacing the sensors” on page 21. WARNING

After a basic initialisation has been carried out with the PC software Dräger CC Vision, individual alarm settings may have been changed.

3.3.3

Configuring the device

To individually configure a standard-configuration device, connect the device to a PC. The installed PC software Dräger CC Vision is used for configuration.

USB 1.1

IR 0

X-am 2500

USB DIRA with USB cable (order no. 83 17 409)

USB 1.1 0

Calibration cradle (order no. 83 18 752) with inserted USB DIRA with USB cable (order no. 83 17 409)

USB 1.1 / COM 0

E-Cal module Dräger X-am 125 (order no. 83 18 754) 00733366_en.eps

 

Observe the documentation and online help of the software. A version of the CC-Vision software that can be used for Dräger X-am 2500 is available for download from the product page for the X-am 2500 at the following web address: www.draeger.com

Dräger X-am 2500

Use

3.4

Running the bump test

3.4.2

3.4.1

Manual implementation without documentation of the results in the instrument memory

The setting to "Quick bump test" or "Accelerated bump test" is made using the PC software Dräger CC Vision. In the "Quick bump test" a check is carried out as to whether or not the gas concentration has exceeded alarm threshold 1 (with oxygen, the test checks that alarm threshold 1 has not been reached). In the "Accelerated bump test" a check is carried out as to whether or not the gas concentration has exceeded alarm threshold 1 (with oxygen, the test checks that the alarm threshold has not been reached) and whether or not the gas concentration has reached the set bump test concentration.

1. Prepare a test gas cylinder, 0,5 L/min the volume flow must be 0.5 l/min and the gas concentration must be higher than the alarm threshold concentration that is to be tested. Example test gas cylinder 68 11 130 = mixed gas with 50 ppm CO, 15 ppm H2S, 2.5 vol. % CH4, 18 vol. % O2 2. Connect the test gas cylinder with the calibration cradle (order no. 83 18 752). 00833366.eps 3. Vent the test gas into a fume cupboard or into the open air (with a hose connected to the second connector of the calibration cradle).

Menu implementation with the documentation of results in the instrument memory

Setting on delivery: Quick bump test.

CAUTION Never inhale the test gas. Health hazard! Observe the hazard warnings of the relevant Safety Data Sheets.

4. Switch on the instrument and insert it into the calibration cradle – press downwards until it engages. 5. Open the test gas cylinder valve to let test gas flow over the sensors. Recommendation: Wait until the instrument displays the test gas concentration with sufficient tolerance – Ex: ±20 % of the test gas concentration1 O2: ±0.6 vol. %1 TOX: ±20 % of the test gas concentration 1 Wait until at least alarm threshold A1 or A2 has been exceeded, however. If the alarm thresholds are exceeded, the instrument displays the gas concentration in alternation with » A1 « or » A2 « depending on the test gas concentration. 6. Close the test gas cylinder valve and remove the instrument from the calibration cradle. If the concentration has now fallen under the A1 alarm threshold: Acknowledge the alarm.



If the displays are outside of the above-mentioned ranges: Calibrating/adjusting the instrument, see section 5 on page 17.



1. Prepare a test gas cylinder, the volume flow must be 0.5 l/min and the gas concentration must be higher than the alarm threshold concentration that is to be tested. Example test gas cylinder 68 11 130 = mixed gas with 50 ppm CO, 15 ppm H2S, 2.5 vol. % CH4, 18 vol. % O2 2. Connect the test gas cylinder 0,5 L/min with the calibration cradle (order no. 83 18 752)). 3. Vent the test gas into a fume cupboard or into the open air (with a hose connected to the second connector of the calibration cradle).

00833366.eps

CAUTION Never inhale the test gas. Health hazard! Observe the hazard warnings of the relevant Safety Data Sheets.

4. Switch on the instrument and insert it into the calibration cradle – press downwards until it engages. 5. Open the Quick menu and select the bump test, CH4 page 16. %LEL The current gas O2 concentration values and Vol% the special symbol » « CO ppm (for bump test) flash. H 2S 6. Press the OK key to start ppm the bump test. 7. Open the test gas cylinder valve to let test gas flow over the sensor. − If gas concentration exceeds the alarm thresholds A 1 or 00933366_en.eps A 2 the corresponding alarm will occur.

Upon application of the Dräger mixed gas (order no. 68 11 130) the displays should be within this range.

Dräger X-am 2500

Use Ending the bump test: After the set bump test concentration has been CH4 reached or a gas alarm has %LEL been triggered (with "Quick O2 bump test"): Vol% CO  The display containing the ppm current gas concentration H2S changes with the display ppm » OK «.  The bump test that was carried out is documented with the result and date in the instrument memory. 01033366_en.eps 8. Close the test gas cylinder valve and remove the instrument from the calibration cradle.  If the concentration values have now fallen under the A1 alarm thresholds, the instrument returns to the measuring mode.  If the set bump test concentration is not reached within the set time, an error is issued.  The fault message » « appears and CH4 » « is displayed %LEL instead of the measured O2 value on the faulty Vol% measuring channel. CO ppm  In this case, repeat the 2S H bump test or calibrate ppm the instrument, page 21.

01133366_en.eps The bump test can also be run automatically. The "Bump Test Station" is required for this function, see section 3.4.3 on page 14.

3.4.3

Define which measuring channels should participate in the automatic bump test. All measuring channels participate in the bump test by default. 1. Prepare the Bump Test Station according to the instructions. 2. Switch on the instrument and insert it into the CH4 receptacle of the Bump Test %LEL Station until it engages. O2 The bump test will be Vol% started automatically. CO ppm The special symbol » « H2S (for bump test) flashes. ppm



01133366_en.eps

If a gas alarm (quick bump test) is initiated and the set bump test concentration (Accelerated bump test) is reached within the set time, the current gas concentration will be displayed alternately with » OK «. 3. Remove the instrument from the Bump Test Station. If the concentration values have now fallen under the A1 alarm thresholds, the instrument returns to the measuring mode.  If there is no alarm during the bump test and the current measurements do not reach the set target concentration ("Accelerated bump test" only), an error is issued.  The fault message » « appears and CH4 » « is displayed %LEL instead of the measured O2 value on the faulty Vol% measuring channel. CO ppm  In this case, repeat the 2S H bump test or calibrate ppm the instrument, page 21. 

Automatic implementation with the Bump Test Station 01133366_en.eps

The bump test can also be run manually, see section 3.4.1 on page 13. The Dräger CC Vision PC software can be used to enable the "Automatic calibration after incorrect bump test" option. Ex %UEG O2 Vol% CO ppm H2 S ppm

3.5 0

 01333366.eps

Prerequisite: The instrument first needs to be configured for the automatic bump test using the Dräger CC-Vision PC sofware.  Activating the instrument for the automatic bump test.  Composition of test gas (mixed gas) – standard on delivery: 50 ppm CO, 15 ppm H2S, 2.5 vol. % CH4, 18 vol. % O2



During use During operation, the measured values for every measured gas are displayed. If a measuring range is exceeded or not reached, the following displays are shown instead of the measured value display:



« (measuring range exceeded) or

«(measuring range not reached).

Excess concentrations of flammable materials can lead to a lack of oxygen.

Dräger X-am 2500

Use For O2 concentrations under 8 vol. % an error is indicated with » « at the ex-channel instead of the measuring value as long as the measuring value falls below the prewarning threshold (only if measuring range is ≤100 %LEL, not for >100 %LEL (heat conductance)).  In the event of an alarm, the corresponding displays, including the visual, audible and vibration alarms, are activated, see section 6 on page 21. If the measuring range is exceeded significantly at the CatEx channel (very high concentration of flammable materials), a blocking alarm is triggered. This CatEx blocking alarm is either acknowledged automatically through a functional oxygen channel (e. g. a channel free of warnings and defects) or manually by switching the instrument on and off in fresh air. No blocking alarm is triggered in the "methane" configuration setting when a measuring range is exceeded, because the unambiguousness of the display for methane is ensured via a separate measurement of the heat conductivity. 

After leaving the area, when the concentration has dropped below the alarm threshold:  Press the OK key. The alarm messages are switched off. 3.6.3

In the event of an impact load when using a CatEx sensor in the Dräger X-am 2500 that causes the fresh air display to deviate from zero, the zero point and sensitivity must adjusted. After the measuring range of the TOX measuring channels has been exceeded temporarily (up to one hour), checking the measuring channels is not necessary.

3.6

Identifying alarms

An alarm is displayed visually, audibly and through vibration in a specific pattern. 3.6.1

Concentration pre-alarm A1

Intermittent alarm: Display » A1 « and measured value alternating: The pre-alarm A1 is not latching and stops when the concentration has dropped below the alarm threshold A1.  In case of A1, a single tone is audible and the alarm LED flashes. Acknowledging the pre-alarm:

Press the OK key. Only the audible alarm and the vibration alarm are switched off.



3.6.2

Concentration main alarm A2 WARNING

Leave the area immediately. After this alarm, the deployment of personnel is subject to the relevant national regulations.

Intermittent alarm: Display » A2 « and » « (STEL) or » measured value alternating: 

WARNING After exposure to concentrations above 100 %LEL, incorrect displays may occur at the CatEx channel. Check the zero point and sensitivity and adjust it if necessary before continuing to use the instrument in a concentration range of 0 to 100 %LEL.

WARNING



STEL / TWA exposure alarm

« (TWA) and

The STEL and TWA alarm cannot be acknowledged or cancelled. Switch off the instrument. The values for the exposure evaluation are deleted after the instrument is switched on again.

3.6.4

Battery pre-alarm

Intermittent alarm: Flashing special symbol » side of the display:

« on the right

Acknowledging the pre-alarm:  

Press the OK key. Only the audible alarm and the vibration alarm are switched off. The battery still lasts min. 20 minutes after the first battery pre-alarm.

3.6.5

Battery main alarm

Intermittent alarm: Flashing special symbol » of the display:

« on the right side

The battery main alarm cannot be acknowledged or cancelled:  The device automatically switches off after 10 seconds.  Before the instrument is switched off, the visual, audible and vibration alarms are activated for a short time. 3.6.6

Instrument alarm

Intermittent alarm: Special symbol » « displayed on the right side of the display:   

The instrument is not ready for operation. For corrective measures, see“Replacing the sensors” on page 21 to page 24. Contact maintenance or Draeger Service to rectify the problem.

Risk of fatal injury! Leave the area immediately. A main alarm is self-latching and cannot be acknowledged or cancelled.

Intermittent alarm: Display » A2 and measured value alternating: 

In case of A2, a double tone is audible and the alarm LED flashes twice.

Dräger X-am 2500

Menu functions

4.1

Activating the Info mode

 

In measuring mode, press the OK key for approx. 3 seconds. If any warning or fault messages exist, the corresponding information or error codes will be displayed (see section 8 on page 22). Press the OK key successively for the next display. The peak values and the exposition values TWA1 and STEL1) are displayed. Warning messages are displayed. Numerical codes of warning messages: see section 8.1 on page 22. OK key Fault messages are displayed. Numerical codes of fault messages: see section 8.2 on page 24. OK key The peak values = the maximum measured values in the case of, e.g., CO, H2S, ... or the minimum measured values in the case of O2 within the storage interval are displayed OK key The average values of the exposures based on a shift of, e.g., 8 hours (TWA) of all the active sensors for the exposure evaluation are displayed OK key The short-term values (STEL) = average values of the concentrations over the average value duration of all the active sensors for the exposure evaluation are displayed OK key The instrument is in measuring mode again



4.3.3

Quick menu "Displaying and deleting peak values"

After the function has been selected, the current peak values are displayed; the peak values special symbol appears in the display at the same time.

CH4 %LEL O2 Vol% CO ppm H2 S ppm

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1. The peak values can be deleted by pressing the OK key for 5 sec. and the adjacent display appears, for example. 2. Press the OK key to end the function.

CH4 %LEL O2 Vol% CO ppm H2 S ppm

If no key is pressed for 10 seconds, the instrument returns automatically to measuring mode.

4.2 

to activate the bump test for the quick menu and/or the function for displaying and deleting peak values. 1. In measuring mode, press the key three times. If no functions have been activated in the quick menu, the instrument remains in measuring mode. 2. You can select the activated functions of the quick menu by pressing the key.  Press the OK key to call the selected function.  Press the key to cancel the active function and to switch to measuring mode.  If no key is pressed for 60 seconds, the instrument returns automatically to measuring mode.

Opening Info-Off Mode

When the instrument is in a deactivated state, press the key. The name of the gas, measuring unit, and measuring range limit value are displayed for all channels. Pressing the OK key again exits the Info Off mode (or via timeout).

4.3

Quick Menu

4.3.1

Quick menu functions Bump test see section 3.4 on page 13 Fresh air calibration, see section 5.2 on page 17

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4.4

Calibration Menu

4.4.1

Calibration menu functions Fresh air calibration, see section 5.2 on page 17 1-button calibration, see section 5.3 on page 18 Single gas calibration, see section 5.3.1 on page 19

4.4.2 

Display and clearing the peak values, see section 4.3.3 on page 16 

4.3.2

Opening the Quick Menu

Open the Calibration Menu

The calibration menu can only be accessed by entering a password. Password on delivery: » 001 « The default password on delivery can be changed using the PC software Dräger CCVision.

On delivery, only the fresh air calibration is activated in the Quick Menu. The PC software Dräger CC Vision can be used 1

Only when activated in the instrument configuration. Delivery status: not activated.

Dräger X-am 2500

Calibrate instrument 1. In measuring mode, press the key for at least 4 seconds. The function for entering the password is selected. The special symbol » « (for the "enter password" function) is displayed. The display shows » 000 «, with the first digit flashing. 2. Use the key to set the flashing digit. 3. Press the OK key, the second digit starts flashing. 4. Use the key to set the flashing digit. 5. Press the OK key, the third digit starts flashing. 6. Use the key to set the flashing digit. 7. Press the OK key to confirm the password once it has 00633366.eps been set completely. 8. The calibration menu functions can now be selected by pressing the key.  Press the OK key to call the selected function.  Press the key to cancel the active function.  If no key is pressed for 10 minutes, the instrument automatically returns to measuring mode.

Calibrate instrument WARNING

!   

Always calibrate the zero-point before span. Otherwise, the calibration will contain errors! Adjustment may not be possible due to instrument and channel errors. Allow the sensors to warm up before the calibration! Warming-up time: see instructions for use / data sheets for the Dräger sensors installed (product page for X-am 2500 at www.draeger.com).

5.1  

 

Improving the zero point accuracy – perform fresh air calibration, page 17. Set the sensitivity of all sensors to the value of the test gas – carry out the 1-button calibration, page 18. Set the sensitivity of a sensor to the value of the test gas – span calibration/adjustment, page 19.

5.2

Run fresh air calibration

To improve the zero-point accuracy, a fresh air calibration can be carried out.  Calibrate the instrument to fresh air, free of measured gases or other interfering gases.  Sensors which have not warmed up or which are faulty prevent a calibration.  In the case of sensors which are in the warm-up phase, the message » 159 « is displayed with the special symbol » « (for warning message).  In the case of a sensor or instrument error, the message » 109 « is displayed with the special symbol » « (for a fault message).  The message is cleared after 5 seconds and the function is available again in the menu.  During the fresh air calibration the zero point of all sensors (with the exception of the DrägerSensor XXS O2) are set to 0.  In the case of the DrägerSensor XXS O2, the display is set to 20.9 vol. %. 1. Switch on instrument. 2. Depending on instrument configuration:  Open the Quick menu and select the fresh air calibration function, page 16. or  Open the Calibration menu and select the fresh air calibration function, page 16.  The current gas concentration values flash. CH4  When the measured values %LEL have stabilized: O2 OK Vol% 3. Press the key to carry CO out the fresh air calibration. ppm H2S ppm

Observe the relevant specifications in the Instructions for Use/data sheets of the Dräger Sensors installed. For critical applications, observe the recommendations in EN 60079-29-21 or EN 45544-42 and national regulations. We recommend that you adjust all the channels after 6 months.

Adjustment interval:



CAUTION Never inhale the test gas. Health hazard! Observe the hazard warnings of the relevant Safety Data Sheets.

EN60079-29-2 – Guidelines for selection, installation, use and maintenance of instruments for the detection and measurement of flammable gases and oxygen. EN 45544-4 – Electrical instruments for the direct detection and direct concentration measurement of toxic gases and vapours – Part 4: Guide for selection, installation, use and maintenance.

Dräger X-am 2500

The display containing the current gas concentration changes with the display » OK «. 4. Press the OK key to confirm the calibration or wait for approx. 5 seconds.

01333366_en.eps



CH4 %LEL O2 Vol% CO ppm H2S ppm

01433366_en.eps

Calibrate instrument

5.3

If a fault has occurred during the fresh air calibration:  The fault message » « appears and » « is CH4 displayed for the respective %LEL sensor instead of the O2 measured value. Vol% CO  In this case, repeat the ppm fresh air calibration. H2S ppm  Replace the sensor if necessary, page 21.

1-button calibration NOTICE If no sensors have been approved by the Dräger CC-Vision PC program for the 1 button calibration, the 1-button calibration will not be available.

All sensors approved by the Dräger CC-Vision PC program are included in the 1-button calibration.  In the case of the 1-button calibration, the sensitivity of all sensors is set to the value of the test gas. When using test gas cylinder 68 11 130 = mixed gas with 50 ppm CO, 15 ppm H2S, 2.5 vol. % CH4, 18 vol. % O2.  If a mixed gas with another 0,5 L/min composition is used, the specified concentration values in the instrument must be changed to the target values of the mixed gas used using the PC software "Dräger CCVision". 1. Connect the test gas cylinder with the calibration cradle. 2. Vent the test gas into a fume cupboard or into the open 00833366.eps air (with a hose connected to the second connector of the calibration cradle). 

01533366_en.eps

CAUTION Never inhale the test gas. Health hazard! Observe the hazard warnings of the relevant Safety Data Sheets.

3. Switch on the instrument and insert it into the CH4 calibration cradle until it %LEL engages. O2 4. Call the calibration menu, Vol% enter the password and seCO ppm lect the 1-button calibration H 2S function, page 16. ppm 5. Press the OK key to start the 1-button calibration. 6. Open the test gas cylinder valve to let test gas flow over the sensor. The currently displayed 01633366_en.eps measured values start to flash. The flashing stops after a static measured value has been reached. The calibration is now carried out automatically. The displayed measured values change to the values according to the gas supplied. 7. The automatic stability monitoring can be overridden by pressing the OK key. A calibration is carried out immediately. If it is detected that no test gas has been supplied, the 1-button calibration is cancelled. The channels then display » n/a «. If only one sensor is included in the 1-button calibration, an adjustment is carried out in any case when the OK key is pressed.

Dräger X-am 2500

Calibrate instrument When the calibration is completed and the displayed measured values have stabilised:  The display containing the current gas concentration CH4 changes with the display %LEL » OK «. O2 OK 8. Press the key or wait Vol% CO for 5 seconds to quit the ppm calibration. H2S ppm  The instrument changes to the measuring mode 9. Close the test gas cylinder valve and remove the instrument from the calibration cradle. 01733366_en.eps

If a fault occurs during the 1-button calibration: The fault message » « appears and » « is CH4 displayed for the respective %LIE sensor instead of the O2 measured value. Vol% CO  In this case, repeat ppm the 1-button calibration or H2S carry out a single gas ppm calibration, see section 5.3.1 on page 19.  Replace the sensor if necessary, page 21. 

  

Never inhale the test gas. Health hazard! Observe the hazard warnings of the relevant Safety Data Sheets.

3. Switch on the instrument and insert it into the calibration cradle. 4. Press the [ + ] key and keep it pressed for 5 seconds to open the calibration menu, enter the password and select the single gas calibration function, page 16. 5. Press the OK key to start the channel selection.  The display flashes the gas of the first measuring CH4 channel, e.g. » Ex %LEL «. %LEL 6. Press the OK key to start CO2 ppm the calibration function of this measuring channel, O2 Vol% or use the key to CO select another measuring ppm channel (O2 - vol. %, H2S H2S ppm ppm or CO - ppm).

01933366_en.eps

5.3.2

Calibrating the sensitivity for an individual measuring channel

The span calibration can be carried out specifically for individual sensors. In the case of the span calibration, the sensitivity of the selected sensor is set to the value of the test gas used. Use a standard test gas. 0,5 L/min Allowed test gas concentration: Ex: 40 to 100 %LEL O2 10 to 25 vol. % CO: 20 to 999 ppm H2S: 5 to 99 ppm Test gas concentration of other gases: see Instructions for Use for the respective DrägerSensors. 0

1. Connect the test gas 00833366.eps cylinder with the calibration cradle. 2. Vent the test gas into a fume cupboard or into the open air (with a hose connected to the second connector of the calibration cradle).

Dräger X-am 2500

CAUTION

NH3 ppm

01833366_fr_es.eps

5.3.1

Sensitivity calibration for CatEx

If the measuring range end value < = 100 LEL, the calibration for catalytic effect is suggested. Display on channel selection: 1. Press the OK key to start the catalytic effect calibration.

CH4 VOL% CO2 ppm O2 Vol% CO ppm H2S ppm NH3 ppm

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2. Press the key to select the next sensor. O2 VOL% O2 Vol% CO ppm H2S ppm NH3 ppm

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Calibrate instrument If the measuring range end value >100 LEL, the calibration for catalytic effect and heat conduction is suggested, display on channelselection:

10. Open the test gas cylinder valve to let test gas flow over the sensor. The displayed, flashing measurement value changes to the value according to the supplied test gas.

CH4 VOL% CO2 ppm O2 Vol% CO ppm H2S ppm NH3 ppm

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3. After pressing the OK key, the following appears on the display:

CH4 VOL% <= 100%LEL

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4. Press the OK key to start the catalytic effect calibration. 5. After pressing the key, the following appears on CH4 the display: VOL% > 100%LEL

When the displayed measurement value has stabilised: 11. Press the OK key to carry out the calibration. The display containing the current gas concentration CH4 changes with the display %LEL » OK «. 12. Press the OK key or wait for approx. 5 seconds to quit the calibration of this measuring channel. The next measuring channel appears for calibration. After the calibration of the last measuring channel, the instrument changes to the measuring mode. 02433366_en.eps 13. Close the test gas cylinder valve and remove the instrument from the calibration cradle. If a fault has occurred during the sensitivity calibration:  The fault message » « appears and » « is CH4 displayed for the respective %LEL sensor instead of the CO2 measured value. ppm O2  In this case, repeat the Vol% calibration. CO ppm  Replace the sensor if 2S H necessary, page 21. ppm NH3 ppm

02533366_en.eps

02333366_en.eps

6. Press the OK key to start the heat conduction calibration. 7. key can be pressed to select the next sensor. 8. Press the OK key to carry out the calibration of the O2 selected measuring channel. VOL% The calibration gas O2 Vol% concentration is displayed CO 9. Press the OK key to ppm confirm the calibration gas H2S ppm concentration or use the [ + ] NH3 key to change the calibration ppm gas concentration and complete the process by pressing the OK key. 02133366.eps The measurement value flashes.

Notice for the adjustment of the ex-channel to nonane as a measuring gas:  During the calibration of the ex-channel, propane can be used as a substitute calibration gas.  When using propane to adjust the ex-channel to nonane, the display must be set to twice the used test gas concentration. Notice for the use in subsurface mining: For the calibration of the ex-channel to the measuring gas methane, the display of the instrument must be set to a value of 5 % (relative) higher than the used test gas concentration.



Dräger X-am 2500

Operation with pump

With Dräger Pump X-am 1/2/5000 Accessories: Dräger Pump X-am 1/2/5000, sampling hose and probes, see section 12 on page 31.

Replacing the sensors USB 1.1

IR 0

X-am 2500

USB DIRA with USB cable (order no. 83 17 409)

Commissioning and performing the measurement:  Refer to the Instructions for Use of the Dräger Pump X-am 1/2/5000. With manual pump adapter and rubber ball pump Accessories: For manual pump adapter, rubber ball pump, sampling hose and probes, see section 12 on page 31.

USB 1.1 0

Calibration cradle (order no. 83 18 752) with inserted USB DIRA with USB cable (order no. 83 17 409)

Commissioning and performing the measurement: Refer to the Instructions for Use of the accessories used.



Dräger X-am 2500

USB 1.1 / COM 0

Observe the following during measuring mode with pump  Wait for the flushing time to elapse: Before every measurement, flush the Dräger sampling hose or the Dräger probes with the air sample to be measured.  A flushing phase is necessary to eliminate or minimise all effects associated with the use of a sampling hose or a probe, e.g. memory effects, dead volume.  The duration of the flushing phase depends on factors such as type and concentration of the gas or vapour to be measured, material, length, diameter, and age of the sampling hose or probe. Generally, when using a sampling hose (new, dry, clean), a typical flushing time of approx. 3 seconds is required for each metre. This flushing time applies in addition to the sensor response time (see the Instructions for Use for the gas detection instrument used). Example: In the case of a sampling hose with a length of 10 m, the flushing time is approx. 30 seconds and the sensor response time is in addition approx. 60 seconds. Therefore, the total time before reading the gas measuring instrument is approx. 90 seconds. The flow-rate alarm is delayed by 10 to 30 seconds depending on the length of the hose.

E-Cal module Dräger X-am 125 (order no. 83 18 754) 00733366_en.eps

• •

To replace the sensors of the instrument, connect the instrument with a PC. Replace the sensors using the PC program Dräger CC Vision.

Next: • Conduct the fresh air calibration page 17. and then: • Calibrating sensitivity: either perform 1-button calibration, page 18 or run sensitivity calibration, see page 19.

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Dräger Medical

Gas Detection Systems

X-am 2500 Technical Manual Edition 01 Nov 2012