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

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Display Menus MI 611-185 – June 1996
Zero Reference Point Calibration
1. From the CALIBRATION menu display, press 3=Zero.
NOTES:
1. The following sequence shows the procedure when the TVA-1000B is configured
with both Cal Accept mode and Cal Save mode = Auto. If either mode is Manual, an
extra confirmation is required at the appropriate step.
2. If your instrument is a dual detector type (PID and FID), you can zero the PID
and FID separately, both together, or one in zero gas and one in clean ambient air.
To do so, follow the same procedure. However, it is suggested that you zero both detectors
together.
If you press 3=Zero, the display will show:
FID-only PID-only PID/FID
FID: 0 PID: 0 PID:
0
Zero Cal:
Enter=Start
Zero Cal:
Enter=Start
2. To perform the actual ZERO procedure for an
FID: 0
Zero Cal: 1=Both
2=PID 3=FID
FID-only: or PID-only: or PID/FID:
Press ENTER Press ENTER Press 1, 2, or 3
Apply Zero Gas
FID
Enter=Start
Exit=Cancel
Apply Zero Gas
PID
Enter=Start
Exit=Cancel
Apply Zero Gas
At Sample inlet
Enter=Start
3. Apply the zero gas to the probe at ambient pressure (using a clean and labeled gas
sampling bag) and then press ENTER.
FID 0
FID
Zero Gas
Exit=Cancel
PID 0
PID
Zero Gas
Exit=Cancel
PID 0
FID: 0
Wait for Zero
Exit=Cancel+
The instrument analyzes the zero sample.
FID 0
FID
PID 0
PID
PID 0
FID: 0
ACCEPTED
ACCEPTED - ACCEPTED -
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