RADIOMETER TCM3 - Page 22

2. TCM3
TCM3
and TCM30 Service Manual
Checkout and Adjustment, Continued
Display PCB
Step 0:02
Step 0:03
DIP Switch
Step 0:04
The following steps are carried out to check the keys and display segments.
Step Action
1. Press the SET key. The AUX display and its light-bars will be
activated.
2. Press the A key. The pO, display and its light-bars will be
activated,
3. Press the CAL key. The pCO, display and its light-bars will be
activated.
4. Press the W key. The audio alarm steps through all levels.
The following steps are carried out to check the electrode holder micro-switch and
the reading of the electrode code.
Step Action |
1. Electrode hoider micro-switch out: 111 in pCO, display.
Electrode holder micro-switch in: 000 in pCO, display.
2. Simulator ELECTRODE switch pos. pO2 display
pO, pCO, 000
peo: 111
РО 222
TEST 333
These steps are carried out to check that the DIP switches are read | correctly
(TCM3 monitors below RUN 22 only).
The DIP switch code is shown in the pCO, display as a hexadecimal number.
Step Action
1. Note the DIP switch setting.
2. Check that the number is 00 if all 8 switches are in pos. ON and FF if
they all are in pos. OFF.
Set the DIP switch as it was before the check.
Continued on next page
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