Endress+Hauser dosimass, Руководство по эксплуатации

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Dosimass Troubleshooting
Hauser 25
9.3 Fault diagnosis via the light emitting diode (LED)
There is a light-emitting diode (LED) on the electronics board by means of which easy fault diagnosis
is always possible. This kind of error signaling is particularly important in the following instances:
• If the status output was not configured for outputting errors or notices.
• If fault diagnosis is no longer possible via the FieldCare operating program.
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Warning!
This kind of fault diagnosis is not possible in Ex-areas since the electronics compartment can only
be opened if no voltage is being supplied to the device.
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A0004753
Fig. 16: Fault diagnosis with Dosimass using light emitting diode (LED)
Status of light-emitting diode (LED) Status of measuring system
LED lights up green Measuring system OK, low flow cutoff is active
LED flashes green (once a second) Measuring system OK, operation
LED does not light up Measuring system no longer working
LED flashes red (three times a second) – Operation not possible
– Error (fault message) pending
LED flashes red/green (once a second) – Operation possible but may be restricted by application
conditions.
– Notice message pending
LED flashes red/green (three times a second) Zero point adjustment running