Emerson Model 1700 Manuel D’Utilisation

Page de 350
Enhanced core processor LED states
Table 10-14:   
LED state
Description
Recommended action
Solid green
Normal operation
No action required.
Flashing yellow
Zero in progress
No action required.
Solid yellow
Low-severity alarm
Check alarm status.
Solid red
High-severity alarm
Check alarm status.
Flashing red (80% on, 20% off)
Tubes not full
If alarm A105 (slug flow) is active, refer to the
recommended actions for that alarm.
If alarm A033 (tubes not full) is active, verify
process. Check for air in the flow tubes, tubes
not filled, foreign material in tubes, or coating
in tubes.
Flashing red (50% on, 50% off)
Electronics failed
The meter requires factory service.
Flashing red (50% on, 50% off,
skips every 4th)
Sensor failed
The meter requires factory service.
OFF
Core processor receiving less
than 5 volts
Verify power supply wiring to core processor.
If transmitter status LED is lit, transmitter is re-
ceiving power. Check voltage across terminals
1 (VDC+) and 2 (VDC–) in core processor. If
reading is less than 1 VDC, verify power supply
wiring to core processor. Wires may be switch-
ed.
If transmitter status LED is not lit, transmitter
is not receiving power. Check power supply. If
power supply is operational, internal transmit-
ter, display, or LED failure is possible – the me-
ter may require factory service.
Core processor internal failure
The meter requires factory service.
10.30
Perform a core processor resistance test
1.
Power down the transmitter.
2.
If you have a 4-wire remote installation or a remote core processor with remote
transmitter installation, remove the core processor lid.
3.
If you have an integral installation:
a. Loosen the four cap screws that fasten the transmitter to the base.
Troubleshooting
Configuration and Use Manual 
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