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Arbiter Systems Inc.


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1040C/CU Panel Meter Calibrator
921A Combustible Gas Meter
928A Power System Multimeter
929A Three Phase Power Meter
930A Three Phase Power Meter
931A Power System Analyzer







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Model 921A Combustible Gas Meter - Overview

The Arbiter Systems Inc. Model 921A Combustible Gas Meter is a rugged instrument that measures total combustible gases (TCG) in oil-filled transformer nitrogen gas blankets, TCG measurements have been shown to be good indicators of transformer health.

The supplied cylinders of instrument Air, Zero Grade Nitrogen and 1% Methane in Nitrogen calibration gases support field calibration, after which TCG measurements are virtually automatic. The Model 921A also has a built-in gas pressure sensor. By connecting the gas sampling hose to the PSI port and pressing PSI, the blanket fill gas pressure can be accurately measured.

The Model 921A is provided with a hard-sided transit case, along with instrument air, nitrogen, and 1% calibration gas cylinders and all necessary regulators and accessories.

Model 921A Combustible Gas Meter

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  • Measures total combustible gases (TCG) in the field.
  • Built-in gas pressure sensor.
  • Includes regulators and accessories.
  • Includes cylinders of Instrument Air, Zero Grade Nitrogen and 1% Methane in Nitrogen calibration gases.
  • All shipments containing gas cylinders ship from the factory via FedEx Ground ONLY. Reshipping this non-flammable calibration gas through common carrier requires hazardous materials certification because the cylinder pressure is
    greater than 40 psi.

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Macey's Electrical Pty. Ltd.
ABN 17 344 601 468
Unit 1, 49 Gavenlock Road, Tuggerah, NSW Australia 2259
Phone: +61 2 4353 4644    Mobile: 0412 678 925