MDM Monitored Dial Mixer Installation Manual Rev L

TABLE OF CONTENTS

WARNINGS

2

DESCRIPTION AND MECHANICAL ASSEMBLY

2

CONNECTION AND ACTIVATION OF GAS SUPPLY TO MACHINE

17

ASSEMBLY OF “E” SIZE CYLINDERS TO PORTABLE UNITS WITH CYLINDER MOUNTS

21

SPECIFICATIONS

24

PRE-OPERATION

29

CROSS PIPELINE TEST

31

FUNCTIONAL TESTS

33

OPERATION

34

MAINTENANCE

36

SERVICE

36

CE NOTICE

36

1

WARNINGS The MDM® and its accessories are designed to perform in accordance with specifications herein when installed, operated and maintained as instructed in this manual. It should be carefully read and understood prior to operation and use of the MDM. This equipment is designed for use with an oxygen supply assuring 100% oxygen concentration. The use of oxygen concentrators could result in an unsafe condition to the patient. The MDM and its accessories are FACTORY adjusted and calibrated. Any alteration to these adjustments may alter the accuracy and operation specified by the factory. The MDM and its accessories in need of repair should be repaired ONLY by an Authorized by MATRX/PARKER Dealer. Replacement parts used to restore a MDM to its specified operation should be genuine MATRX/PARKER manufactured parts or MATRX/PARKER recommended equivalent parts. The MDM and its accessories are a specialized medical device and should be operated ONLY by a professional trained in its use. MATRX/PARKER may apply technical advances whenever it is desirable. Therefore, specifications of this product are subject to change WITHOUT NOTICE. MATRX/PARKER should be contacted for current information. We cannot over stress the importance of the user performing their own test independent of the dealer or contractor to verify that ALL gas pipelines are connected correctly. Properly connected pipelines are essential to PATIENT SAFETY. Please refer to Page 33 of this manual for a simple test procedure. This test procedure is NOT intended to replace any other test procedures required by NFPA 99c or local building codes. It is intended for the user as an additional safety measure.

DESCRIPTION AND MECHANICAL ASSEMBLY This manual covers the installation and operation of the MDM Nitrous Oxide/Oxygen mixer and it’s mounting configurations including wall mounted, under counter mounted, and mobile stand mounted with and without 2 or 4 cylinder gas yoke assembly. The MDM is a mechanical mixer for regulating the flow of nitrous oxide and oxygen from a gas supply to a conscious patient for the purpose of conscious sedation analgesia. With the exception of the mounting configuration which will be covered later, each MDM model includes the MDM Flowmeter Head with one of the following: Conventional Rubber Goods

or

• 40” Breathing Tube • Large Nasal Inhaler • 3 Liter Breathing bag

N2O - O2 Scavenger • Large scavenger • 3 Liter breathing bag

2

MDM AS SUPPLIED WITH CONVENTIONAL RUBBER GOODS

The following assembly procedure is common for all MDM models supplied with conventional rubber goods (see fig 1): 1. Position breathing bag as shown and slide opening in breathing bag over outside diameter of bag mount. 2. Slide one end of 40” breathing tube over outside diameter of breathing tube connector.

3

3. Slide connector “Y” fitting of large nasal inhaler into free end of 40” breathing tube. MDM AS SUPPLIED WITH NITROUS OXIDE - OXYGEN SCAVENGER

The following assembly procedure is common for all MDM models supplied with the dental scavenger (see fig 2): 1. Position breathing bag as shown and slide opening in breathing bag over outside diameter of bag mount. 2. Insert fresh gas connector into breathing tube connector.

4

3. Refer to scavenging nasal inhaler instructions for methods of connecting vacuum shut-off valve. The following mounting adaptations, method of assembly, and installation are for all MATRX Analgesia Heads. For Top Mounting Wall Mounted Units (see fig 3) 1. Remove the two 10-32 x ¼” screws from the rear, top of the head, and assemble the mounting bracket to the rear top of the analgesia head by aligning the bracket with the bevel side to the head and the 10-32 tapped holes in the head with the screw holes in the bracket. 2. Screw the two 10-32 x 1” screws (included) into the tapped holes through the clearance holes in the bracket. Thread in screws until they are tight.

5

Mounting the 8" Wall Mount A. Wood Stud Mounting

Note: Mounting hardware is not supplied with the mount. Using a minimum wood screw size of #12 x 2 ½” long and flat washer #12 x 5/8” minimum outside diameter, mount the wall bracket directly to a wood wall stud through a maximum 5/8” dry-wall. Two screws are required for each mounting (see fig 4). B. Concrete Wall Mounting

Note: Mounting hardware is not supplied with the mount. 1. Drill hole in concrete wall as instructed by anchor manufacturer. Drive in anchor. Insert screw through washer then wall bracket. Thread screw into anchor until tight. One screw required for each mounting hole (see fig 5). 2. Refer to Figure 3. Slide stud on mounting bracket (attached to analgesia head) in bore located in the end of the 8” arm.

6

3. Attach rubber goods as per Figure 1 and 2. THE UNDER-COUNTER MOUNT A. Remove the two 10-32 X ¼” screws from the rear top of the head. Assemble washer and spacer to the 10-32 X ¾” screw. Thread screw into tapped hole (10-32) on rear top of analgesia head. Turn the screw until it is tight. Repeat for the other screw. (See fig 6).

7

THE UNDER-COUNTER MOUNT (cont.) B. The under counter mounting bracket is designed to mount within a cabinet or underneath a counter top. Specific mounting instructions and mounting hardware cannot be defined as each installation will be different. All mounting hardware must be user-supplied.

8

In all cases, the under-counter mounting bracket must be mounted with the 3 x 3 ½” flange in a horizontal plane. Figures 7 and 8 illustrate possible mounting configurations.

CAUTION Use pan head screws or bolts only. Make sure the head of the screw does not protrude above the surface of the flange.

THE UNDER-COUNTER MOUNT (cont.) C. Once the under counter mounting bracket is mounted, check its operation as follows (see fig 9): 1. The complete bracket (except the flange) should rotate, in a horizontal plane, through 360°

9

2. By pulling the bottom of the release lever outward, thus releasing the pin that holds the head mounting plate in position, the head mounting plate is free to swing downward. When the analgesia head is mounted to the head mounting plate (see step D) and the release lever is pulled, the complete head can swing into the cabinet or under the counter until the pin locks into the storage position. NOTE Minimum clearance to use this mount is 17” high x 6” wide.

THE UNDER-COUNTER MOUNT (cont.) D. Position the back of the analgesia head parallel with the head mounting plate. Slide the head downward until spacers, installed in step “A”, are engaged in the pin notches. (See fig 10).

10

E. Attach rubber goods as per fig. 1 and 2 of this section.

THE MOBILE STAND UNIT A. Thread hex nut onto mounting stud until at least ¾” of thread is exposed above nut on stud. (See fig 11).

11

B. Thread stud into 5/8 - 18 tapped hole located on bottom of the outlet housing of the analgesia head. Thread in until nut is reached. (See fig 11). C. Using an adjustable wrench or the appropriate box wrench, firmly rotate the nut clockwise (looking towards the bottom of the head) firmly until it stops against the MDM. D. Slide the tapered nose of the pole mount assembly into the bore of spider stand until it comes to a stop. (See fig 12). E. Slide mounting stud through post spacer (if supplied) and into stud bore of pole mounting stud. When the head is at the desired working height, rotate the stud lock clockwise until it locks the stud. (See fig 12). F. Connect rubber goods as per figures 1 and 2.

THE MOBILE STAND UNIT (cont.)

12

THE PORTABLE UNIT (for use with small cylinders)

13

A. Assemble mobile stand unit as outlined in Figure 12. B. Assemble head to stud as outlined in Figure 11 and set this assembly aside. NOTE C. Screws and cylinder mount are included in the yoke block assembly. The assembly procedure for either a 2 cylinder or 4 cylinder mount is the same. Refer to Figure 13 for 2 cylinder mount and figure 14 for 4 cylinder mount. Looking at the mobile stand from the top, orient the legs as shown in Figure 13 or 14.

THE PORTABLE UNIT (for use with small cylinders) cont.

14

THE PORTABLE UNIT (for use with small cylinders) cont.

15

D. Cylinder mounts must be mounted a maximum of 29 ½” to a minimum of 29” from the floor. See Figure 15. E. Looking from the top, locate the oxygen side of the mount as indicated in Figure 13 and Figure 14. F. Place the mount on the pole (at the proper height) such that the semi-circular cut-out on the mount fits around the pole. G. Add the cylinder mount clamp such that it fits the pole opposite the cylinder mount and the tapped holes in the cylinder mount line up with the clearance holes in the cylinder mount clamp. H. Pass the socket head cap screws through the clearance holes and thread into the tapped holes and tighten them securely. See Figure 16. I.

Refer to Fig. 11 and mount head/stud unit. Refer to Figures 1 and 2 and Figures 13 and 14 and rotate head/stud assembly such that the oxygen flow tube of the head is on the oxygen side of the cylinder mount assembly.

THE PORTABLE UNIT (for use with small cylinders) cont.

16

HEAD ONLY WITH RUBBER GOODS A. Refer to Figure 1 and 2 and attach rubber goods as required. CONNECTION AND ACTIVATION OF GAS SUPPLY TO MACHINE

17

Hoses are not supplied as standard equipment with analgesia heads, except for portable units, and must be ordered separately, specifying hose length. Gas connections to the Matrx analgesia heads are accomplished by using color-coded and mechanically indexed hose assemblies. CAUTION 1. Only oxygen hoses can be used for oxygen connections. 2. Only nitrous oxide hoses can be used for nitrous oxide connections. A. HOSE IDENTIFICATION

Oxygen Hose Standard Assembly

Nitrous Oxide Hose Standard Assembly

CONNECTION AND ACTIVATION OF GAS SUPPLY TO MACHINE (cont.)

18

B. HOSE CONNECTION TO THE ANALGESIA HEAD 1. Connect DISS female hexagon fitting (see fig 18) of the nitrous oxide hose to male DISS fitting on the back of the analgesia head (see fig 19). Accomplish this connection by screwing female hexagon fitting onto male threaded fitting. Tighten to hand tight and then finish tighten with 7/8 open end wrench just enough to prevent leaks. Do not over tighten. 2. In the same fashion, connect the oxygen hose to the male oxygen fitting (see fig 19). Finish tightening the female hexagon fitting with an 11/16 open end wrench just enough to prevent leaks. Do not over tighten.

19