RKI Instruments 61-1000RKSS-05 User Manual
Page 15
61-1000RKSS-05 Combustible Gas Detector• 11
Setting the Zero Reading
NOTE
If you can verify that the combustible gas transmitter is in a fresh air
environment, you do not need to apply zero air to the detector before adjusting
the zero reading.
1.
Screw the regulator into the zero air calibration cylinder.
2.
Use the sample tubing to connect the regulator to the calibration cup.
3.
Perform a zeroing operation at the controller. See the controller operator’s manual for
directions.
4.
When the directions call for exposing the detector to zero air, turn the regulator knob
counterclockwise to open the regulator.
5.
Allow the gas to flow for one minute before continuing with the directions.
6.
After setting the zero reading, turn the regulator knob clockwise to close the regulator.
7.
Unscrew the regulator from the zero air calibration cylinder.
8.
Leave the sample tubing connected to the regulator and the calibration cup.
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.
Follow the directions in the controller operator’s manual for setting the response
reading (span).
3.
When the directions call for exposing the detector to gas, turn the regulator’s on/off
knob counterclockwise to open it.
4.
Allow the gas to flow for one minute before continuing with the directions.
5.
After setting the response reading, turn the regulator’s on/off knob clockwise to close
it.
6.
Unscrew the regulator from the cylinder.
Returning to Normal Operation
1.
Unscrew the calibration cup from the detector.
NOTE:
For convenience, leave regulator and calibration cup connected by the sample
tubing.
2.
When the controller display reading falls below the alarm points, return the controller
to normal operation.
NOTE
: If you do not allow the gas reading to decrease below the alarm points, then
unwanted alarms may occur.
3.
Verify that the controller display reading decreases and stabilizes at 0 %LEL.
4.
Store the components of the calibration kit in a safe and convenient place.