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Avantra 36/44 Service Manual
4-2
Maintenance
4.2
Servicing
4.2.1 Checking Sensor Operation
When reading the following procedures, refer to the low voltage wiring diagram.
4.2.1.1
Optical Interrupter
1.
Check the +5 V supply. Connect the DVM between P31,4 (common) and
P31,2 (+).
Reading should be 4.75 to 5.25 V DC.
2.
Check the supply to the transmitter. Connect the DVM between P31,4
(common) and P 31,3 (supply) of the optical interrupter.
Reading should be 1.7 to 1.9 DC.
3.
Connect the DVM between P31,4 (common) and P31,1 (pulse) of the opti-
cal interrupter.
Reading should range from 12 V (detector gap open) to 0 V (detector gap
closed).
4.2.1.2
Film Sensor
1.
Check the output. Connect the DVM across the appropriate channel to be
checked.
For SENSOR 4, for example, measure the voltage between X501,15 and
X501,2. A non activated sensor should read 0 V, and an activated sensor
should read 5 V.
4.2.1.3
Temperature Sensor
Checking the response to the actual temperature is done as a resistance measure-
ment.
1.
Switch off the processor.
2.
Disconnect the sensor from the circuit.
3.
Connect a DVM to the sensor.
4.
Use the following (simplified) formula to calculate the correlation between
temperature and resistance:
Resistance (Q) = (temp. [C
°
] x 1.925) + 500
Содержание Avantra 36/44
Страница 1: ...The Avantra 36 44 Service Manual Part Number 580078 0002 ...
Страница 24: ...Section I Imagesetter ...
Страница 282: ...Section II Bridge ...
Страница 327: ...Section III Buffer ...
Страница 359: ...Section IV On line Processor ...
Страница 462: ...Avantra 36 44 Service Manual B 2 Spare Parts Avantra 36 44 OLP Parts ...
Страница 464: ...Avantra 36 44 Service Manual B 4 Spare Parts Avantra 36 44 OLP Parts ...
Страница 466: ...Avantra 36 44 Service Manual B 6 Spare Parts Avantra 36 44 OLP Cassette Parts ...
Страница 468: ...Avantra 36 44 Service Manual B 8 Spare Parts Avantra 36 44 OLP Feed Rack Parts ...
Страница 470: ...Avantra 36 44 Service Manual B 10 Spare Parts Avantra 36 44 OLP Tank Parts ...
Страница 472: ...Avantra 36 44 Service Manual B 12 Spare Parts Avantra 36 44 OLP Right Side View Parts ...
Страница 474: ...Avantra 36 44 Service Manual B 14 Spare Parts Avantra 36 44 OLP Control Panel Parts ...
Страница 476: ...Avantra 36 44 Service Manual B 16 Spare Parts Avantra 36 44 OLP Rack Spare Parts ...
Страница 478: ...Avantra 36 44 Service Manual B 18 Spare Parts Avantra 36 44 OLP Dryer Spare Parts 18 ...
Страница 480: ...Avantra 36 44 Service Manual B 20 Spare Parts Electronics upper Spare Parts ...
Страница 482: ...Avantra 36 44 Service Manual B 22 Spare Parts Electronics lower Spare Parts ...
Страница 484: ...C 1 Appendix C Wiring Diagrams ...
Страница 491: ...Section V Crane ...
Страница 521: ...Avantra 36 44 Service Manual I 4 Index ...