Thermo Scientific TVA2020, Instruction Manual

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Troubleshooting
Warning Messages
6-6 TVA2020 Instruction Manual Thermo Fisher Scientific
The following is a list of error and warning messages for the TVA2020.
Table 6–2. Warning Messages
Message Description
Battery Power is low. This display occurs whenever the battery has reached a low
level (approximately 6.5 V). It indicates that approximately
15 minutes of operating time remain. Press EXIT to return to
the operating display. The lower right corner of all displays
now show ± (blinking). If you continue to operate after the
warning is displayed, the unit will eventually shut off
automatically. To restart after an auto shut down, you must
first recharge or replace the battery. Note that collected
data is not lost
Logger memory is already full. Log memory is full. You cannot continue to log any entries
until you have transferred the log memory to a PC or have
cleared log memory. The instrument will, however, continue
to operate.
FID Flameout! Ignite again. This display appears whenever the FID flame is
extinguished. Press EXIT to clear, then CONTROL key and 2
to ignite. This warning is active only in RUN and CALIBRATE
modes. In the RUN mode, once the alarm is acknowledged,
a flashing F appears on the sidepack display and the probe
display flashes.
Low Flow detected. This message will follow the FID Flameout message if a low
flow condition was measured prior to the flameout.
High Concentration detected. This message will follow the FID Flameout message if the
instrument sees a spike in the concentration prior to a
flameout condition.
Log rate too slow for PC STEL
calc. This message appears whenever you enter a log rate value
greater than 90 seconds. The data sampling rate is too low
for valid STEL calculations in the PC. Press EXIT to bypass
the warning.
Log rate invalid! This message appears whenever you enter a log rate of
zero. To correct the problem, enter a log rate other than
zero.
Entry is invalid! This message appears whenever you enter a value equal to
zero (except for alarm levels). To correct the problem, enter
numbers other than zero.
Bad Calibration parameters! This warning display appears during calibration if the
current zero calibration value equals or exceeds the span
calibration value. To correct the problem, perform a re-zero,
a re-span, or both.
Hardware Failure. This message appears as a result of a self-test failure.
Return the instrument to the factory for service.
Warning
Messages