71-6417
33
Chapter
5
C
ALIBRATION
This chapter contains instructions to prepare the calibration kit and calibrate
the Innova Series gas monitor. For Land Surveyor, Transformer Gas Tester,
Soil and Fuel Vapor, see Appendix C for supplemental instructions.
Note
: Refer to Appendix C for information on calibrating and operating the
Transformer Gas Tester (XT), and Soil Vapor (SV), and Fuel Vapor (FV)
models.
WARNING
Accurate calibration of the Innova Series gas monitor is essential
to ensure correct readings of gas and oxygen concentrations.
Incorrect or improper calibration can impair the performance of
the instrument and place you in potential danger if hazardous
conditions exist.
Preparing the Calibration Kit
Perform the following steps to prepare the Innova calibration kit.
WARNING
LEL response will vary for different gases. For best accuracy,
LEL calibration should be done using the target gas of the LEL/
ppm sensor. (Expected relative combustible responses, listed in
Appendix B, Interference Factors, are not verified by UL.)
1. Verify that the calibrating area contains a level surface to set the
Innova and calibration kit accessories upon.
2. Turn on the Innova instrument. Enter the Display Menu and verify
that the Battery Capacity screen displays at least three bars (see
“Display Menu” at the beginning of Chapter 4, User Program for a
detailed description).
3. Carefully screw the threaded end of the regulator into the gas
cylinder.
4. Attach the sample tubing over the fitting on the regulator.
