Midmark M11 User Manual download pdf (Page 10)

AT-A-GLANCE

CALIBRATION PROCEDURE

1) Open door.

2) Depress LIQUIDS

and PACKS buttons at the same time as plugging in the

power cord.

3.) Starting with UNWRAP

button, depress and release all buttons from left

to right across panel.

4) Turn

pressure zero pot #1 counter-clockwise to 0.0 PSI. Then turn clock-

wise until the display pressure reads

0.1 PSI.

5) Depending on if the board is old or new, connect multi-meter leads as

shown in Figure 2 on page 13 (old), or Figure 3 on page 14 (new).

6) Adjust

temperature pot #3 to 2.56 VDC reading on multi-meter.

7) Connect the test pressure gauge, close the door and press the ST

ART

button.

8) Check for pressure leaks at this time. Refer to 1.0 Leak Detection Guide.

9) After display reaches 272˚F, adjust the

pressure range pot #2 until the

display pressure matches test pressure gauge to within +/- 0.5 PSI

10) Depress the STOP

button to end the test cycle.

11) After the sterilizer vents and the door opens, unplug the power cord

(main PC board to reset itself).

The pressure zero, pressure range, and temperature potentiometers must

not be adjusted exclusively. If one potentiometer needs to be adjusted, then

the entire potentiometer adjustment procedure must be performed, and it

must be performed in the proper sequence as described in the steps below.

INSTRUCTIONS

1) Remove the power cord from the A.C. outlet. Remove right hand

side panel.

2) Open the sterilizer door.

3) To begin diagnostics, go to page 10, see Figure 1.

5.0 - CALIBRATION PROCEDURE - PRESSURE/TEMPERATURE POTENTIOMETER ADJUSTMENTS (continued)

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Midmark M11 User Manual Page 10