Analytical Industries GPR-1100 ATEX Portable Trace PPM Oxygen Analyzer - Manual (Page 12)

12
Start-up
The GPR-1100 Portable ppm Oxygen Analyzer is fully operational from the shipping container with the oxygen
sensor installed and calibrated at the factory prior to shipment. Once installed, we recommend the user allow the
analyzer to stabilize for 30 minutes and then recalibrate the device as instructed below.
Assemble the necessary hardware for mounting the analyzer and optional components - such as coalescing or
particulate filters and pumps, 1/8” metal or plastic tubing for interconnecting the analyzer and optional
components.
Review the application conditions to ensure the sample is suitable for analysis.
1. Temperature: The sample must be sufficiently cooled before it enters the analyzer and any optional
components. A coiled 10 foot length of ¼” stainless steel tubing is sufficient for cooling sample gases as high
as 1,800ºF to ambient.
2. Pressure & Flow: As described above.
3. Moisture & Particulates: Prevent water and/or particulates from entering the sample system. They can clog
the tubing and damage the optional components such as pumps, scrubbers or sensors. Installation of a
suitable coalescing or particulate filter is required to remove condensation, moisture and/or particulates from
the sample gas to prevent erroneous analysis readings and damage to the sensor or optional components.
Consult the factory for recommendations concerning the proper selection and installation of components.
4. Contaminants: A gas scrubber and flow indicator with integral metering valve are required upstream of the
analyzer to remove interfering gases such as oxides of sulfur and nitrogen or hydrogen sulfide that can
produce false readings and reduce the expected life of the sensor. Installation of a suitable scrubber is required
to remove the contaminant from the sample gas to prevent erroneous analysis readings and damage to the
sensor or optional components. Consult the factory for recommendations concerning the proper selection and
installation of components.
5. Gas connections: Inlet and outlet vent gas lines require 1/8” diameter tubing preferably metal.
6. Power connection: Locate a source of AC power to meet area classification and to plug in the charging adapter.
7. Zero calibration (required only for very low percentage range measurements).
8. Span calibration – Users are responsible for certified span gas cylinder, regulator and flow control valve.
Mounting the Analyzer:
Normally mounting a portable analyzer is not a consideration. However, the GPR-1100 analyzer can operate
continuously when connected to AC power using the appropriate charging adapter. The analyzer enclosure is cast
with four (4) holes in the bottom section specifically intended for wall mounting.