JUMO 406050, Operating Manual

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8 Operation
8 Operation
8.1 Display and control elements
8.2 Troubleshooting
The device status is indicated by a multicolored LED (red/green/yellow).
(1) Multicolored device status LED
LED signal Device status (error message) Status signal according to
NAMUR
Green (f = 1 Hz, t
on
/T = 0.9) 0 = normal operation -
Red (f = 1 Hz, t
on
/T = 0.5) 1 = error F
Yellow (f = 1 Hz, t
on
/T = 0.5) 2 = outside the specification S
Red (f = 5 Hz, t
on
/T = 0.5) 4 = failure (serious error) F
Yellow Initialization phase C
Error mes-
sage Device func-
tion Possible cause Troubleshooting
0 All No errors -
2 Input for vol-
ume flow Volume flow > MRE Reduce the plant's volumetric flow
Use larger device nominal width
Partial filling/empty conduit Fill pipe
Gas bubbles in the medium > level
1 (measurement still possible) Bleed the system
Increase the system pressure
2 Analog output Burden too high Check electrical connection
2 Digital output Short circuit in output due to over-
load Check electrical connection
4 General infor-
mation Checksum of configuration data
faulty Contact manufacturer
General error
4 Input for vol-
ume flow Volume flow invalid Contact manufacturer
Gas bubbles in the medium > level
2 (measurement no longer possi-
ble)