20 • 65-2331-04 H
2
S Transmitter
adjust the reading to 100 mV (± 2mV).
6.
Unscrew the regulator from the zero air calibration cylinder.
7.
Leave the calibration adapter/splash guard’s flexible tubing connected to the
regulator.
Setting the Response Reading
1.
Screw the regulator into the calibration cylinder. Verify that the calibration gas is
representative of the transmitter’s target gas.
2.
Turn the regulator knob counterclockwise to open the regulator.
3.
Allow the calibration gas to flow for the length of time determined in “Determining
Response Time” on page 18.
4.
Verify that the reading matches the response reading (± 2mV) you determined earlier.
If necessary, use the span pot on the amplifier to adjust the reading to match the
correct response reading.
5.
Turn the regulator knob clockwise to close the regulator.
6.
Unscrew the regulator from the calibration cylinder.
Returning to Normal Operation
1.
Remove the voltmeter leads from the amplifier test points.
2.
Disconnect the calibration adapter/splash guard’s flexible tubing from the regulator.
NOTE:
Do not disconnect the flexible tubing from the calibration adapter/splash guard.
3.
Secure the amplifier junction box’s cover to the junction box.
4.
When the display reading falls below the alarm setpoints, return the controller to
normal operation.
5.
Verify that the controller display reading decreases and stabilizes at 0 ppm.
6.
Store the components of the calibration kit in a safe and convenient place.
