Thermo Scientific TVA-1000B Instruction Manual - Geotech ...

MI 611-185 – June 1996
Hardware
A segmented analog bargraph that represents a logarithmic scale for the total analyzer range
appears below the digital display. This display, which may be backlit under low light conditions, is
active only in the RUN mode. In all other modes, it displays OFF.
The measured value display area is used to flash logging prompts during survey and log mode. In
addition, errors on the sidepack are indicated by “Err” on the probe. Errors are cleared by using
the LOG key.
MEASURED VALUE AND ERROR/LOGGING PROMPTS
MEASUREMENT UNITS
DETECTOR
BEING
DISPLAYED
8.8.8.8.
ppm
% ppb
fid
pid
>>>
OVERRANGE INDICATOR
LOGARITHMIC
BARGRAPH
DET
LOG
DETECTOR SELECTOR
BUTTON
LOG SELECTOR
BUTTON
BUTTON FOR
DISPLAY BACKLIGHTING
Figure 8. TVA-1000B BASIC Probe Display
NOTE: Use of the backlight draws additional power from the battery and will
shorten the runtime of the TVA-1000B.
BASIC Probe Keys
The BASIC probe keypad has three keys. The keys are labeled with DET, LOG, and a lamp symbol.
Key
Function
DET Press and release this key to select the display of either the FID or the PID
readings in the RUN mode.
Press and hold this key (approx. 2 seconds) to cancel selected logging modes.
LOG Press and release this key to start the datalogging feature. Survey information is
then automatically stored in the analyzer memory. The selection in SETUP/Log
must be AUTO or VOC.
Press and release this key to clear a sidepack error when the display reads “ Err”.
Lamp Symbol Press this key to turn the backlight for the probe display on or off. You should use
it only during low light conditions as it draws additional power from the
battery and thus shortens instrument run time.
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