VAF instruments Viscosense 3 - 15.2 GENERAL TROUBLE SHOOTING

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15.2 GENERAL TROUBLE SHOOTING
Problem Possible cause Corrective action
No viscosity signal
No supply to interface box Check supply.
Check fuses.
Check electrical connections.
Current loop connection broken Check electrical wiring of 4-20
mA output signal
Air entrapped in the fuel system Vent the system
ViscoSense
®
3 malfunctioning Check diagnostic led
Problem Possible cause Corrective action
No temperature signal
No supply to interface box Check supply.
Check fuses.
Check electrical connections.
Current loop connection broken Check electrical wiring of 4-20
mA output signal
ViscoSense
®
3 malfunctioning Check diagnostic led
Problem Possible cause Corrective action
Viscosity output is lower
than expected
Actual viscosity is lower than
expected.
E.g. bunker calculator only gives
approx. value.
Dilution with MDO.
Temperature is higher than expected.
None
(For laboratory check of viscosity
take sample according
instructions in chapter 15.4).
Range settings ViscoSense
®
3 and
readout unit do not match
Check mA signal and range
settings
Air entrapped in the fuel system Vent the system