Description
Note: On Midmark M9D Autoclaves, approximately 650 ml of water will enter chamber before reaching the water sensor.
![Guaranteed High Quality Midmark M9D Autoclave Repair Parts](https://www.allclaveparts.com/images/quality_seal.jpg)
M9D Water Level Sensor Asssembly
MIS075-7373
Midmark Part #002-0358-00
The Water Level Sensor Tells The Autoclave's PC Board When There Is Enough Water In The Chamber To Start The Cycle
Assembly Includes
- Sensor Disk
- Spacer
- Teflon Tube
- Compression Nut with Ferrule
- Terminal Nut
- Terminal
Fits: Chamber
Model This Part Fits: Midmark M9D Autoclaves
Here is where to Find The Water Level Sensor
The Water Level Sensor is Located Inside The Midmark M9D Autoclave Chamber
![Looking Inside The Midmark M9D Chamber](https://www.allclaveparts.com/images/large/midmark_inside_chamber.jpg)
Click on Image For Larger Picture
How To Replace The Midmark M9D Autoclave Water Level Sensor Assembly
Start By Removing The Old Autoclave Water Level Sensor Assembly:
- Disconnect wire from Sensor by pulling if off of the Terminal
- Using a wrench, remove Terminal Nut, Terminal & Compression Nut
- From inside the chamber, remove Sensor, Spacer & Teflon Tube
Next Install The New Midmark M9D Autoclave Water Level Sensor Assembly:
- Install Teflon Tube & Spacer onto Sensor
- Install Sensor thru hole in chamber
- Install Compression Nut and then install Terminal & Terminal Nut
Caution: DO NOT Over-Tighten Compression Nut (Tighten Only 1¼ turns past finger-tight)
- Perform continuity test to make sure assembly is not grounded (it should not be continuous)
- Connect Sensor wire to Terminal
Midmark Water Level Installation Tip
- Unplug the unit from the wall before proceeding
- Make sure the unit is level in all directions (front to back and side to side)
- Remove the exisiting water level sensor
- Insert the new water level sensor into the hole inside of the chamber, make sure the spacer seats in the hole
- Install the compression nut and hand tighten only (leave it loose enough you can still manipulate the sensor)into position
- Pour distilled water directly into the chamber until it reaches the front dam
- Move the sensor disk until it just touches the water
- Tighten the compression nut 1-1/4 turns past finger tight
- Install the terminal and terminal nut onto the Teflon tube
- Reconnect the sensor wire
If it is installed correctly, you should be able to start a cycle. It should go directly to the heat up mode (the water is touching the sensor.... completeing the circuit and telling the PC Board that there is sufficient water to proceed)
![Open the Door and Look Inside](https://www.allclaveparts.com/images/large/m9_chamber.JPG)
"Midmark M9D Autoclave Repair Made Simple"