Troubleshooting - Instrutech Busy Bee PCM301 User Manual

Instruction Manual

7.5 Troubleshooting

In case of an error, it may be helpful to just turn off the mains supply and turn it on again after 5 seconds.
Problem
Output signal permanently 0V
<ST> lit solid red
FAIL PIR1
<ST> lit solid red
FAIL CAP1
<ST> lit solid red
FAIL ATM1
<ST> lit solid red
FAIL EEPROM
<ST> is blinking red
FAIL SENSOR
<ST> lit solid red
InstruTech
Possible cause
Sensor cable defective or not
correctly connected
No supply voltage
Error
Gauge in an undefined status
Pirani sensor defective
Electronics unit not correctly
mounted on sensor
Diaphragm sensor defective
Electronics unit not mounted
correctly on sensor
Atmospheric pressure sensor
defective
EEPROM error
Electronics unit not compatible with
the sensor
PCM301 Busy Bee
Correction
Check the sensor cable
Turn on the power supply
Remedy the error
Turn the gauge off and on
again after 5 s (reset)
Replace the sensor
Check the connections
(electronics – sensor)
Replace the sensor
Check the connections
(electronics – sensor)
Replace the gauge
Turn the gauge off and on
again after 5 s (reset)
Replace the gauge
Replace the sensor
Replace the gauge
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