RKI Instruments 61-0192RK - Manual (Page 14)

10 • 61-1006RK/61-0192RK Combustible Gas Detector
Preparing for Calibration
1. Screw the calibration cup onto the detector.
2. Screw the regulator into the calibration cylinder.
3. Place the controller into its calibration program.
Setting the Zero Reading
CAUTION: If you suspect the monitoring environment is not free of combustible vapors, use the
calibration kit and a zero air calibration cylinder to introduce “fresh air” to the
detector and verify an accurate zero setting.
1. Verify that the detector is in a fresh air environment.
2. Follow the directions in the controller’s operator’s manual for setting the zero
reading.
Setting the Response Reading
1. Use the sample tubing to connect the regulator to the calibration cup.
2. Follow the directions in the controller’s operator’s manual for setting the response
reading (span).
3. When the directions call for exposing the detector to gas, screw the regulator into the
cylinder, turn the on/off knob counterclockwise to open the regulator.
4. Allow the gas to flow to the detector for 1 minute before continuing with the
directions.
5. After setting the response reading, turn the on/off knob clockwise to close the
regulator, unscrew the regulator from the cylinder and remove the calibration cup
from the detector.
Returning to Normal Operation
1. Allow the reading at the controller to decrease below the alarm points before
returning the controller to normal operation or enabling external alarms.
NOTE: If you do not allow the gas reading to decrease below the alarm points, then
unwanted alarms may occur.
2. Verify that the controller display reading decreases and stabilizes at 0%LEL.
3. Store the components of the calibration kit in a safe and convenient place.