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Typical Applications for the S500· Oil refineries· Chemical processing
· Offshore platforms
· Gas processing
· Oil and gas storage depots
· Gas pipelines
· Tank farms
· Laboratories
· Petrochemical industry The Monicon S500 is a high quality, self contained, Intelligent gas sensor that offers a host of sophisticated features to provide fast, reliable warnings against explosive concentrations of combustible gases. The S500 will operate as a standalone instrument or in conjunction with a control-
ler or a computer. The S500 is housed in an attractive, compact diameter enclosure and may be configured or calibrated by one person, without declassifying the hazard-
ous area. The gas concentration is indicat-
ed on a 4-character alphanumeric display which also indicates instrument status. The S500 is fully user programmable and no physical adjustments are necessary dur-
ing calibration as the on-board computer assists the calibration procedure. All user variables are stored in non-volatile memory (EEPROM) and retained indefinitely even during total power failure.
S500 Intelligent Gas Monitor Features· Microprocessor based · 4-20mA Analogue Output · Voltage free relay contacts · RS485 digital interface · Alphanumeric dot-matrix display · “One Person” calibration · Small size · Certified ATEX EExd IIC T6 · Low power consumption · Standalone operation The S500 uses the proven Monicon CGS500 thermocatalytic sensor combined with advanced, surface-mount microproces- sor and firmware technology. Combustible gas oxidising on the surface of a thermo- catalytic element causes an imbalance in a Whetstone bridge circuit. This imbalance is amplified to give a voltage proportional to the gas concentration. This voltage is then processed by the CPU. A watchdog circuit monitors the system operation and resets the CPU if a failure is detected.The S500 is calibrated or user-programmed by activating the magnetic switches with a magnet. The operator is then guided through a variety of options by a user- friendly menu. The CPU constantly verifies system operation. In the unlikely event of a fault, the operator is alerted with a helpful diagnostic display.
S500 Intelligent Gas Monitor Features· Microprocessor based · 4-20mA Analogue Output · Voltage free relay contacts · RS485 digital interface · Alphanumeric dot-matrix display · “One Person” calibration · Small size · Certified ATEX EExd IIC T6 · Low power consumption · Standalone operation The S500 uses the proven Monicon CGS500 thermocatalytic sensor combined with advanced, surface-mount microproces- sor and firmware technology. Combustible gas oxidising on the surface of a thermo- catalytic element causes an imbalance in a Whetstone bridge circuit. This imbalance is amplified to give a voltage proportional to the gas concentration. This voltage is then processed by the CPU. A watchdog circuit monitors the system operation and resets the CPU if a failure is detected.The S500 is calibrated or user-programmed by activating the magnetic switches with a magnet. The operator is then guided through a variety of options by a user- friendly menu. The CPU constantly verifies system operation. In the unlikely event of a fault, the operator is alerted with a helpful diagnostic display.