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Idiomas disponibles
Idiomas disponibles
6. Faults
Faults
The pointer drops below
the start of the scale
range
Instrument switches at
the wrong temperature
Wrong measured value
indication
The instrument does not
switch off at the desired
temperature
Instrument inoperable
Actual value pointer
below the start of the
measuring range, no
reaction to temperature
change
Instrument does not
switch
WIKA operating instructions expansion thermometer, model 70
Causes
Damaged capillary
Switch point is set incorrectly
Influence of ambient
temperature on case and/or
measuring line too strong
Zero point deviation
Probe not completely
immersed into the medium
being measured
Measuring instrument used
outside the specification
(defective microswitch)
Wrong measured value
indication
Wrong electrical connection
Loose electrical connection
Cable break or short-circuit
Leakage in the measuring line
Measuring line break
Defect in switch setting/
microswitch
Connection lead incorrectly
connected
Measures
Send the instrument back to the
manufacturer
Check the switch point, see
chapter 5.9 "Adjusting the set
pointer (with microswitch)".
After correction of the switch
point, the instrument still does
not switch correctly. Send
the instrument back to the
manufacturer
Reposition the case and/or
measuring line or isolate them
from the influence of cold/heat
effects from the outside.
Send the instrument back to the
manufacturer
Correct mounting situation
Send the instrument back to the
manufacturer
Send the instrument back to the
manufacturer
Correct the connection
Check all electrical joints.
Check auxiliary power
Send the instrument back to the
manufacturer
Send the instrument back to the
manufacturer
Send the instrument back to the
manufacturer
Check and correctly connect all
electrical connections.
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