SFIDK.PS.029.E5.02 / SW 2.01.07
49
Error/Symptoms Diagnosis Solution/Comment
Device displays negative Interchange of transducer cable Make sure that the transducer
flow connections cables are connected correctly:
1A → 1A
1B → 1B
2A → 2A
2B → 2B
Wrong setting of measurement Make sure that the setting of menu
direction 3.1.5.1 is “+ direction”.
Current output does not work Internal electrical failure (open Start simulation on the current
circuit, short circuit etc.) output by use of menu 2.4.4.
The instrument for measuring the
current is coupled in series with
the output (across the terminals).
Pulse/Frequency output does Internal electrical failure (open Start simulation on the pulse/
not work circuit, short circuit etc.) frequency output by use of menu
2.4.2. The frequency measuring
instrument is coupled directly on
the terminals.
Relay output does not work Internal electrical failure (open Start simulation on the relay
circuit, short circuit etc.) output by use of menu 2.4.3.
The instrument for measuring the
resistance is coupled directly on
the terminals.
Device displays 0 flow. Process flow value is very low Check the low flow cut off (menu
Device status: “OK” compared with the low flow cut 3.1.6), e.g. for testing, is set to 0.
off limit of the device
LCD display dark or partly Internal electrical failure (open Turn off power. Check the
dark (missing characters) circuit, short circuit etc.) connections for the power supply
PCBA and the flat cable for the
display module. Start display test
(menu 2.3.2) in case of partly dark
display.
Operation with infrared keys Light interference Check that display is not dirty.
not possible Check that display lid is locked
(PDM force control).
Bright auxiliary tools may be of
assistance.
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