e. Enter the specific gravity, molecular weight, or relative density of the calibration
gas and store the value.
f. Activate SCROLL
g. When CAL GAS MEDIUM appears, activate Select to start the calibration.
h. During the calibration, activate SCROLL to observe the Sensor Time Period and
Stability values during the calibration.
i. Wait for a minimum of 15 minutes for the system to stabilize. When Stability is
Good, activate Select.
If measurement does not stabilize after 30 minutes, activate SCROLL to abort the
calibration.
j. Activate Select again to accept the calibration value.
k. As the gas flows, observe the Sensor Time Period and Stability values.
l. Close the calibration valve (Valve B).
m. Disconnect the calibration gas.
8. Set the high-density calibration point.
a. Connect Calibration Gas High to the pipework.
b. Set the pressure regulator on the calibration gas to the appropriate sample
pressure for your installation.
c. Open the calibration valve (Valve B).
d. Activate SCROLL until ENTER GAS HIGH appears, then activate Select.
e. Enter the specific gravity, molecular weight, or relative density of the calibration
gas and store the value.
f. Activate SCROLL
g. When CAL GAS HIGH appears, activate Select to start the calibration.
h. During the calibration, activate SCROLL to observe the Sensor Time Period and
Stability values during the calibration.
i. Wait for a minimum of 15 minutes for the system to stabilize. When Stability is
Good, activate Select.
If measurement does not stabilize after 30 minutes, activate SCROLL to abort the
calibration.
j. Activate Select again to accept the calibration value.
k. As the gas flows, observe the Sensor Time Period and Stability values.
l. Close the calibration valve (Valve B).
m. Disconnect the calibration gas.
9. Activate SCROLL until CALC K VAL appears, then activate Select.
The meter automatically calculates the calibration factors from the stored data.
10. View the calibration factors.
a. When RESULT DISPLAY appears, activate Select.
Purging and calibration
Configuration and Use Manual 39
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