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CHINO CORPORATION
On-line temperature/humidity sensor: HN-CJ

On-line temperature/humidity sensor: HN-CJ

Product catalog summary

Overview: The HN-CJ series is a separated type thermo-hygrometer designed for high-pressure and high-temperature environments, capable of operating up to 1MPa and 180ºC. It is suitable for measuring temperature and humidity in pressurized and high-temperature conditions, with enhancements for relative humidity measurement above 100ºC and robustness in hydrogen environments.

Features:

Pressure-proof up to 1MPa and high temperature up to 180ºC.
Humidity measurement capability above 180ºC dew-point temperature.
Interchangeable plug-in sensor for ease of maintenance.
High reliability and ruggedness in hydrogen environments.
High-polymer film capacitance type sensor for relative humidity measurement from 0%RH.

Models:

HN-CJA: Outputs temperature and relative humidity.
HN-CJC: Outputs temperature and dew-point temperature.

Specifications:

Output Signal: Temperature & relative humidity or temperature & dew-point temperature.
Measuring Range: 0 to 100%RH, no dew condensation, maximum dew-point temperature 150ºC.
Accuracy: ±2%RH at 0 to 90%RH and 25ºC, ±3%RH at 90 to 95%RH and 25ºC.
Temperature Coefficient: ±0.05%RH/ºC at 5 to 80ºC.
Response Time: Within 30 seconds for 90% response.
Temperature Range: -40 to 180ºC.
Accuracy: ±0.5ºC at 25ºC, ±0.5±0.002|T-25|ºC.
Power Voltage: 12 to 24V DC ±1V.
Output Signal: 4 to 20mA DC 2-wire transmission.
Resistive Load: Lower than 500Ω at 24V DC power supply.
Working Temperature: 0 to 50ºC for the main unit, -40 to 180ºC for the probe.
Material: Main unit made of resin, probe made of SUS316.
Mounting: By screws (M4 x 2) or DIN rail.
External Dimensions: W90 x H90 x D45 mm.
Weight: Main unit approx. 220g, probe approx. 350g.
Interchangeability: Plug-in cable can be replaced.

Accessories: Includes wall-mounting hardware.

Additional Notes: Humidity units convertible with HN-CJA and HN-GV1F, including absolute humidity, relative humidity, mixing ratio, water vapor pressure, and dew-point temperature.

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