RKI Instruments 30-0951RK-IR-02 - Manual (Page 4)

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rotating the sensor chamber, and tightening the three thumbscrews.
3. Install and startup the detector head as described in the detector head operator’s
manual. Make sure there is sufficient room between the detector and the mounting
surface for the flow through adapter.
4. The inlet and exhaust fittings accept 1/4” OD rigid metal tubing such as copper,
aluminum, or stainless steel. The inlet fitting is located at the bottom of the flowmeter
and the exhaust fitting is located on the bottom of the sensor chamber. Insert the
desired length of tubing into each fitting and tighten the fittings so that the ferrules
crimp onto the tubing.
5. Install appropriate device(s) (pump, aspirator, etc.) to draw sample to the detector.
The ideal flow rate for the flow through adapter is 3.0 SCFH.
NOTE: Be sure to use the inlet and exhaust ports as intended to ensure correct sensor
response and to allow any accumulated liquid to drain out the bottom of the flow
through adapter.
6. Calibrate the detector head as described in the attached manual and in the next
section.
NOTE: Calibrate the detector head with the flow through adapter installed to ensure an
accurate reading.
Calibration
A demand flow regulator should be used for calibration.
1. Follow the calibration instructions outlined in the attached detector head manual.
2. When the instructions call for applying gas, connect the cylinder.
• If you are drawing sample through the system, connect the cylinder to the inlet
fitting on the flowmeter.
• If you are pushing sample through the system, connect the cylinder to the pump
inlet.
3. Perform a calibration as outlined in the attached detector head manual.
4. When the instructions call for removing the gas, disconnect the cylinder.