Maintenance – RKI Instruments 61-1000RKSS User Manual
Page 11
61-1000RKSS Combustible Gas Detector • 7
9.
When the zeroing operation is complete, turn the regulator’s on/off knob clockwise
to close it.
10. Unscrew the calibration cup from the detector.
11. Unscrew the regulator from the zero air calibration cylinder. For convenience, leave
the sample tubing connected to the regulator and the calibration cup.
12. Store the components of the calibration kit in a safe and convenient place.
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 combustible gas detector. It includes daily, monthly, and quarterly
procedures.
Daily
Verify a display reading of 0% LEL at the controller. Investigate significant changes in the
reading.
Monthly
This procedure describes a test to verify that the combustible gas detector responds
properly to the target gas.
WARNING: The controller is not an active gas monitoring device during the response
test procedure.
NOTE:
Performing a response test on the combustible detector may cause alarms. Be
sure to put the controller into its calibration program before performing this test.
NOTE:
The following procedure assumes the use of a calibration kit which includes a
calibration gas cylinder, a 0.5 LPM fixed flow regulator with an on/off knob, a
calibration cup for the detector, and a length of sample tubing.
Preparing for the response test
1.
Place the controller into its calibration program or disable external alarms.
2.
Verify that the controller display reading is 0% LEL.
If the controller reading is not 0% LEL, set the zero reading then continue this
procedure. See the controller operator’s manual for directions to set the zero reading.
3.
Screw the regulator into the calibration cylinder.
4.
Screw the calibration cup onto the bottom of the detector.
5.
Use the calibration kit sample tubing to connect the regulator to the calibration cup.