



HYGROPHIL® F 5673 is a high-quality, microprocessor-controlled fibre-optic hygrometer for measuring the moisture or trace humidity at low dew-point temperatures in gases and liquids. The version HYGROPHIL® HCDT is equipped with a special sensor and is used in one-channel mode for measuring the dew point of hydrocarbons.
ATEX: II 1/2 G Ex ia op is IIC T3 Ga/GbIECEx: Ex ia IIC T3 Ga/GbNEC 500: Class I, Division 1, Groups A, B, C and DNEC 505: Class I, Zone 0, Group IIC
Evaluation Unit:0 °C to 50 °C (32 °F to 122 °F)Moisture Sensor:-30 °C to 60 °C (-22 °F to 140 °F)HCDT Sensor:-20 °C to 60 °C (-4 °F to 140 °F)
| Measuring Technology | Fiber optic Fabry-Pérot-Interferometer Chilled Mirror with detection by internal total reflection |
|---|---|
| Measurement Channels | 1x Trace Moisture (Water Dewpoint Temperature) 1x Hydrocarbon Dewpoint Temperature (HCDT) |
| Moisture Sensor | Calibrated Range: Dew point temperature -80 °C to 20 °C (-112 °F to 68 °F) Accuracy: +/- 1K Customized calibration / validation on request Temperature Range: -30 °C to 60 °C Pressure Range: 0 to 20 MPa (0 to 2900 psi) Protection Type: IP65 (in built-in state) |
| HCDT Sensor | Measurement Range (Standard): -20 °C to +5 °C (-4 °F to 41 °F) Measurement Range (Extended): -30 °C to + 20 °C (-22 °F to 68 °F) Customized calibration / validation on request (e.g. 5 mg/m³) Accuracy: +/- 1K Pressure Range: max. 4 MPa (max. 580 psi) Protection Type: IP65 |
| Interfaces | 3x Analog Outputs (0/4…20 mA) 1x Analog Outputs (0/4…20 mA Ex-i) MODBUS TCP/IP MODBUS RTU (RS232/RS485) PROFIBUS RS232 |
| HMI | Graphic Display (320 x 240) Red backlit touch-screen |
| Ambient conditions | Evaluation Unit: 0 °C to 50 °C (32 °F to 122 °F) Moisture Sensor: -30 °C to 60 °C (-22 °F to 140 °F) HCDT Sensor: -20 °C to 60 °C (-4 °F to 140 °F) |
| Explosion Protection | ATEX IECEx CSA EAC (on request) |
| Process Integration Sensor | Standard Sample Conditioning System Sample Conditioning System 5985-72 (incl. CE Declaration of Conformity) Customized Sample Conditioning System |
| Ready for Hydrogen | Hydrogen conent in Natural Gas ≤ 10 Mol %: on request Hydrogen conent in Natural Gas ≤ 20 Mol %: on request Operation in pure Hydrogen: on request |