122770 06
18-09-2007
31
Error:
The RTD input is not measuring
Error message:
-
Likely cause:
Solution:
The current source is
not working
Set up the input measuring RTD 3-wire
measurement.
Check that the current between the lowest
red terminal and the lowest black terminal is
between 0.40 mA and 0.44 mA.
With a short circuit between these
terminals, check that the current between
the lowest red terminal and the upper black
is within 2.5% from the first current.
If these are not correct change the Main
PCB and re-calibrate the unit.
A/D-converter is
defective.
With a sensor connected check that the
A/D-converter readings in the Service Menu
are normal.
If not change the Main PCB and re-calibrate
the unit.
Error:
The reference input is not measuring.
Error message:
-
Likely cause:
Solution:
The current source is
not working or the A/D-
converter is defective.
With a sensor connected check that the
A/D-converter readings in the Service Menu
are normal.
Summary of Contents for JOFRA ATC-125
Page 2: ...2 18 09 2007 122770 06 ...
Page 74: ...74 18 09 2007 122770 06 3 3 Exploded View ATC 140 A B 0 35 1 JRL 03 01 2005 A3 ...
Page 75: ...122770 06 18 09 2007 75 3 4 Exploded View ATC 155 A B ...
Page 76: ...76 18 09 2007 122770 06 3 5 Exploded View ATC 156 A B ...
Page 77: ...122770 06 18 09 2007 77 3 6 Exploded View ATC 157 A B ...
Page 79: ...122770 06 18 09 2007 79 3 8 Exploded View ATC 320 650 A B ...