Service manual

Section IV: On-line Processor
Maintenance 4-3
Checking Temperatures
Below are some examples of the correlation between temperature and resistance:
21 ° F (-6.1 ° C) = 540.4 ohm
30 ° F (-1.1 ° C) = 557.8 ohm
32 ° F (0.0 ° C) = 561.6 ohm
34 ° F (1.1 ° C) = 566.5 ohm
35 ° F (1.7 ° C) = 569.3 ohm
38 ° F (3.3 ° C) = 573.2 ohm
40 ° F (4.4 ° C) = 577.0 ohm
42 ° F (5.6 ° C) = 580.9 ohm
45 ° F (7.2 ° C) = 586.6 ohm
50 ° F (10.0 ° C) = 596.3 ohm
55 ° F (12.8 ° C) = 605.9 ohm
60 ° F (15.6 ° C) = 615.5 ohm
NOTE:
If temperatures in the bath are incorrect, no adjustment is
possible. The only corrective action available is to replace
the defective temperature sensor.
4.2.2 Checking Operation of the LCB
WARNING:
All AC power must be off prior to removing the X400
plug.
1. Check the power supply circuits:
a. Disconnect the X400 plug Agfa Terminal Board (ATB).
i. Measure the voltage between pins 4 and 5. The nominal value is
18 VAC.
ii. Measure the voltage between pins 4 and 3. The nominal value is
12 VDC.
iii. Reconnect the X400 plug.