Global Processing

Gas detector calibration can be used in remote locations

May 11, 2009
Calibrating the Model S4000CH Combustible Gas Detector with a remotely-installed sensor is now easier than ever with the new Automatic Remote Gas Calibrator (ARGC). The remote addresses the need for more convenient and expedient maintenance routines by allowing calibration gas to be applied to the catalytic bead sensor from easily accessible locations. The unit consists of a Remote Gas Calibrator (RGC) and a solenoid valve. The gas calibrator blocks ambient air and re-directs the calibration gas to the catalytic bead sensor for calibration or testing sensor accuracy. The instrument can calibrate gases at wind velocities as high as 50 mph and maximum temperatures of 75°C. After connecting the ARGC to any S4000CH Detector, the calibrator can be operated manually or electronically via HART or Modbus, or the magnet menu. The ARGC is suitable for a wide range of applications, including drilling rigs, compressor stations, refineries, aircraft hangars and warehouses. It is easy to install and use, requiring no electrical wiring or connectors. The S4000CH is a hydrocarbon gas detector suitable for use in SIL 3 applications and approved by FM, CSA, ATEX, GOST and has CE Marking. It features a three-digit display and an explosion-proof housing, which allows all data to be processed locally at the sensor site. The S4000CH features one-person calibration for ease of maintenance. The ARGC and the S4000CH are a powerful combination; together they allow operators to calibrate sensors from the ground or in the convenience of a control room, reducing maintenance costs. They also reduce the need for planned shutdowns and special work permits. Convenience promotes regulatory compliance, better record keeping with S4000CH tools like event logging, and control over an array of combustible gas detectors.