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Gas Detection For Life
INSTRUCTION MANUAL
Model GP-204
Portable Combustible Gas Monitor
The accompanying instrument is sold and serviced in the USA by RKI Instruments, Inc. Please contact RKI
Instruments for any follow up service needs, including questions, warranty issues, repairs, and spare parts
and sensors. Thank you for selecting this fine instrument for your use. With proper care and maintenance,
it will provide you with many years of reliable service.
RKI Instruments, Inc.
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•
Phone (510) 441-5656
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(800) 754-5165
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Fax (510) 441-5650
33248 Central Ave. Union City, CA
World Leader In Gas Detection & Sensor Technology
www.rkiinstruments.com
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Summary of Contents for RKI Instruments GP-204
- Page 1 Model GP-204 Portable Combustible Gas Monitor The accompanying instrument is sold and serviced in the USA by RKI Instruments, Inc. Please contact RKI Instruments for any follow up service needs, including questions, warranty issues, repairs, and spare parts and sensors. Thank you for selecting this fine instrument for your use. With proper care and maintenance, it will provide you with many years of reliable service.
- Page 2 The model GP-204 is suitable and recommended for testing tanks, manholes, vessels, pressure cylinders, pipelines, and other closed systems or confined spaces to determine presence or absence of combustible gas.
- Page 3 Flammable Limit (L. F. L.). The model GP-204 is calibrated before shipment to read directly in percent L.E.L. of methane in air, based on the known L.E.L. for methane of 5.0% by volume. That is, a 5.0% by volume will produce a reading of 100%, and smaller concentrations will read in proportion.
- Page 4 5) Recalibrate the new sensor using span gas. C. Batteries The model GP-204 is furnished with two standard size D batteries, either alkaline or Ni-Cad. These batteries will give 4 to 5 hours of operating life before replacement or recharge.
- Page 5 However, they should be avoided because the flame arrestor used is not dense enough to arrest flames from combustible gas in oxygen, which can be much more intense than those in air. DO NOT ATTEMPT TO USE THE MODEL GP-204 ON SAMPLES OF COMBUSTIBLE GAS IN OXYGEN.
- Page 6 Always specify model and serial number of instrument for which parts and accessories are required. For problems with parts not listed, write RKI Instruments Inc. for information or request shipping instructions for return or the instrument for repair.
- Page 7 We do not assume indemnification for any accident or damage caused by the operation of this gas monitor and our warranty is limited to the replacement of parts or our complete goods. Warranty covers parts and labor performed at RKI Instruments, Inc. only, and does not cover field labor or shipment of parts back to RKI.
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