Analytical Industries GPR-3100 Series Oxygen Purity Analyzer - Manual (Page 14)

Advanced Instruments Inc.
5 Operation
GPR-3100 Rev 2/05 7
Installation
The GPR-3100 Oxygen Analyzer consists of an electronic module, sensor housing and sample system
housed in a 10.8”W x 7.5”H x 12.25”D enclosure suitable for panel mounting or 19” rack mounting with
the optional panel. A 12”W x 12”H x 8”D wall mount configuration is also available.
An integral temperature controlled heating system maintains the temperature of the sensor at a pre-set
temperature and assures the stability not found in competitive analyzers. The analyzer has been tested
and calibrated by the manufacturer prior to shipment.
Installation Considerations:
The GPR-3100 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.
¾ Mounting the analyzer and optional components such as coalescing or particulate filters and pumps.
¾ Assemble the necessary hardware for mounting the analyzer and optional components, 1/8” stainless
steel tubing for interconnecting the analyzer and optional components.
¾ Review the application conditions to ensure the sample is suitable for analysis.
¾ 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.
¾ Pressure & Flow: As described above.
¾ 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.
¾ 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.
¾ Gas connections: Inlet gas lines require 1/8” diameter metal tubing whereas ¼” diameter tubing is
required for the vent. Span gas and required accessories are the responsibility of the user.
¾ Power connection: To meet hazardous area classification and weatherproofing requirements install
the interconnection wiring in rigid conduit.
¾ Output connections. To assure proper grounding, connect the 4-20mA signal output to the external
power source before attempting calibration adjustments.
¾ Establishing power to the electronics.
¾ Setting the alarm values (if applicable).
¾ Zeroing the analyzer (required only for very low percentage range measurements).
¾ Calibrating the analyzer.