14 • 65-2330RKSS H
2
S Transmitter
11. Turn the regulator’s on/off knob clockwise to close it.
12. Unscrew the calibration cup from the detector.
13. Unscrew the regulator from the zero air calibration cylinder. For convenience, leave the
sample tubing connected to the regulator and the calibration cup.
14. Store the components of the calibration kit in a safe and convenient place.
15. Remove the voltmeter leads from the test points.
16. Secure the junction box cover to the junction box.
Maintenance
This section describes maintenance procedures. It includes preventive maintenance,
troubleshooting, and component replacement procedures.
Preventive Maintenance
This section describes a preventive maintenance schedule to ensure the optimum performance
of the H
2
S transmitter. It includes daily and quarterly procedures.
Daily
Verify a display reading of 0 ppm H
2
S at the controller. Investigate significant changes in the
display reading.
Quarterly
Calibrate the H
2
S transmitter as described in “Calibration” on page 20. See the calibration
frequency discussion in “Calibration Frequency” on page 19 to determine if a quarterly
calibration schedule fits your needs.
