Cermet II

 Reliable On-Line Dew-Point Measurement
Cermet II is the intelligent choice for reliable on-line measurement of moisture in virtually any gas, across many applications. Cermet II combines Michell's Advanced Ceramic Moisture Sensor and a monitor unit that can be sited up to 1200 metres apart. Whilst Cermet II is so simple to use, it has such flexibility that it can be applied to almost any humidity measurement application. The instrument can display measurement units in °C or °F dew point, ppmV, Lb/mmscf or gm-³ across the measurement range -100 to +20°C dp at pressures up to
30 MPa (300 Barg) and allows active pressure compensation by means of a pressure signal input via the pressure transducer (supplied as an optional extra).

Product Features

  • Wide measurement range
  • ±1.0°C accuracy
  • Analogue and digital output
  • Pressure sensor input
  • Up to 4 alarm relays
  • User selectable measurement units
  • Clear and easy to read display
Cermet II

Technical Specification

SENSOR
Gas Wetted Parts 316 stainless steel
Mounting Thread 5/8" UNF (parallel)
Sensor Body Stainless steel
Ingress Protection IP54 (NEMA 12) with standard connector, (IP66, NEMA 4X) with optional moulded connector
Range Calibrated from -100 to +20°C dew point
Operating Temperature -40 to +60°C (compensated over -20 to +40°C)
Accuracy ±1°C from -59 to +20°C dew point; ±2°C from -100 to -60°C dew point
Resolution 0.1°C from -80 to +20°C dew point; 1.0°C from -100 to -80°C dew point
INSTRUMENT
Measurement Units °C, °F dew point; ppmV with user selectable range and resolution; Lb/mmscf range dependent on pressure (natural gas); gm-³ (natural gas)
Secondary Measurement Variable Pressure via external transducer 0-30 MPa
Completely user configurable for any industry standard transducer
Automatic compensation for ppmV, Lb/mmscf. and gm-³ ranges
Power Supply Universal 85 to 265 VAC; 95 to 370 VDC
Ingress Protection IP54 (NEMA 4); IP66 (NEMA 4X) for front panel only with optional cover
Operating Temperature -20 to +50°C
Relays 2 off 10 A/240 V c/o fully user configurable: can accommodate full range for selected engineering unit plus sensor fault alarm functions
Outputs Analogue: 4-20 mA fully user configurable and scaleable for range
Digital: RS232: provides 2-way communication-full data access to user plus total availability of all set-up and configuration
OPTIONS:
Power Supply 18 to 36 VAC; 9 to 60 VDC
Relays 1 or 2 further 5A relays (max 4 in total) n/o type fully user configurable.
Can accommodate full range + full unit choice + sensor fault alarm functions
Outputs Analogue: 0-10 V fully user configurable and scaleable for range
Digital: range RS485: provides 2-way communication, full data access to user + total availability of all set-up and configuration
Cable Standard 2m (1200m max)

Applications

Compressed Gas Breathing Air Natural Gas & Petrochemicals Power Generation Research & Development

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