RKI Instruments 65-2484RK - Manual (Page 26)

22 • 65-2484RK Multi Point Detector
NOTE: Ensure that you are using an appropriate calibration cylinder for the channel you
are testing.
5. Use the calibration kit sample tubing to connect the regulator to the calibration cup. If
you are testing the ESM-01 toxic detector, check the bottom of the calibration cup to
see if it has a specified flow direction through the cup and if it does, makes 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 Cl
2
and NH
3
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.
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 one minute for the LEL detector or two minutes for the O
2
,
H
2
S, CO, and ESM-01 detectors, 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 the Calibration section of this manual.
3. Turn the regulator’s on/off knob clockwise to close the regulator.
4. Unscrew the regulator from the calibration cylinder.
5. For any additional detectors that you want to test, move the calibration cup to the
detector, screw the regulator into the appropriate gas cylinder and repeat steps 1-4.
6. Unscrew the calibration cup from the detector if you are testing an LEL, O
2
, H
2
S, or
CO detector. If you are testing the ESM-01 detector, screw the splashguard back onto
the detector.
7. When the controller display reading falls below the alarm setpoints, return the
controller to normal operation.
8. Store the components of the calibration kit in a safe place.
Quarterly
Calibrate the multi-point detector as described in the Calibration section of this manual.