Tegam 921B, Operation Manual, Page: 31 / 47

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Troubleshooting
TEGAM’s digital handheld thermometers are designed and built to provide years of
uninterrupted use. In the event the instrument malfunctions or does not perform as
expected, helpful troubleshooting tips are provided below. Figure 14 below lists some of the
more common issues and their resolutions.
S
YMPTOM
D
ESCRIPTION
R
ESOLUTION
Unexpected
reading on Line 2
of Display
Statistics View Mode is
active
Press to cycle through statistics
views until active measurement is
displayed (see Section 3.4 View
Modes and Statistics )
Unexpected or
Erroneous
Measurement
Probe offset is active
Set probe offset to correct value for
connected temperature probe (see
Section 3.10, Probe Offset)
Temperature probe has
not stabilized
Observe display trend indicators and
wait for stable measurement (see
Section 3.8 Trend Indicators )
Instrument is set to the
wrong thermocouple type
for the attached probe
Set the thermocouple type as
appropriate for the attached probe
(see Section 3.3, Setup Menu )
When sourcing from a
thermocouple simulator,
Open Wire Detection is
enabled .
See Section 3.11, Open Wire
Detection On/Off to disable.
Unresponsive
Hold Mode is active
Press , and verify that the HOLD
indicator is not active (see Section
3.7, Hold Function)
Static discharge through
connected probes
Press to cycle instrument power
Shuts down
unexpectedly or
will not power on
Batteries are low or
depleted
Replace batteries (see Section 2.7,
Battery Installation and
Replacement )