RKI Instruments 65-2340RKSS User Manual
Page 14
10 • 65-2340RKSS Toxic Gas Transmitter
9.
Use the sample tubing to connect the regulator to the calibration cup. Check the
bottom of the calibration cup to see if it has a specified flow direction through the cup
and if it does, make sure you connect the tube from the regulator to the inlet port. The
81-1138RK calibration cup, which is used for all detectors except for Cl2 and NH3
detectors, has a specified flow direction on the bottom of the cup. The 81-1138RK-CL2
and 81-1138RK-NH3 calibration cups do not have a specified flow direction.
10. Push the calibration cup onto the plug-in sensor that sticks through the housing cap
as far as it will go. The cup seals to the sensor with an O-ring. Make sure to use the
correct calibration cup and sample flowrate for your detector.
Performing the response test
1.
Turn the regulator’s on/off knob counterclockwise to open the regulator. Gas will
begin to flow
2.
Allow the gas to flow for two minutes, then verify that the reading is within ± 20% of
the cylinder gas concentration.
NOTE:
If the reading is not within ± 20% of the correct response reading, calibrate the
detector as described in “Calibration” on page 14.
3.
Turn the regulator’s on/off knob clockwise to close the regulator.
4.
Unscrew the regulator from the calibration cylinder.
5.
Gently pull the calibration cup off of the plug-in sensor.
6.
Screw the splashguard firmly back onto the housing cap.
7.
Remove the voltmeter leads from the amplifier test points.
8.
Reinstall the junction box cover.
9.
When the controller display reading falls below the alarm setpoints, return the
controller to normal operation.
10. Store the components of the calibration kit in a safe place.
Quarterly
Calibrate the toxic gas transmitter as described in “Calibration” on page 14 of this manual.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the toxic gas transmitter.
NOTE:
This troubleshooting guide describes transmitter problems only. See the
controller operator’s manual for problems you may encounter with the
controller.