• Vaisala HMP4 Humidity and Temperature Probe

Vaisala HMP4 Humidity and Temperature Probe

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Vaisala

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Rp.79.162.400
Availability:
4 - 6 WEEKS
Product Code:
HMP4
Brand:
Vaisala
Update Terakhir:
18 Jun 2024
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Vaisala HUMICAP Humidity and Temperature Probe HMP4 is designed for highpressure applications such as compressed air systems in maritime, breathing air, and industrial applications, where measurement performance and chemical tolerance are essential. 

Vaisala is the original innovator of the thin-film capacitive humidity measurement technology, which has now become the industry standard in humidity measurement. HUMICAPâ technology results from Vaisala's 40-year experience in industrial humidity measurement, providing the best stability, fast response time, and low hysteresis in a wide range of applications.

In environments with high concentrations of chemicals and cleaning agents, the chemical purge option helps to maintain measurement accuracy between calibration intervals. The chemical purge involves heating the sensor to remove harmful chemicals. The function can be initiated manually or programmed to occur at set intervals.

The probe is plug and play compatible with Vaisala Indigo™ series of transmitters, or it can be used as a standalone digital Modbus RTU transmitter over RS-485 serial bus. For easy-to-use access to field calibration, device analytics, and configuration functionality, the probe can be connected to Vaisala Insight™ Software.

Indigo transmitters o„er a variety of connectivity options through analog signals or digital outputs, configurable relays, and wireless (WLAN) configuration interface, providing a suitable solution for all industrial humidity measurements. The cable length between the probe and transmitter can be extended to up to 30 meters.

Each probe is manufactured and individually calibrated in Vaisala's worldclass facility in Finland. The traceable factory calibration certificate is included also in electronic format in the probe. The interchangeable probes minimize the downtime associated with maintenance. Validate and maintain the accuracy by calibrating the instrument on the field or use the easy and thorough calibration service in Vaisala's service facilities in Helsinki, Boston, Beijing and Tokyo.


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  • RH accuracy up to 0.8 %RH
  • Temperature accuracy up to 0.1 °C (0.18 °F)
  • Temperature measurement range -70 ... +180 °C (-94 ... +356 °F)
  • Operating pressure 0 ... 10 MPa (0 ... 100 bar)
  • Sensor purge provides superior chemical resistance
  • Modbus RTU over RS-485
  • Plug & play compatible with Indigo™  series of transmitters
  • Traceable calibration certificate: 5 points for humidity, 1 point for temperature

  • Relative Humidity:
  • Senso:  HUMICAP R2 Composite
  • Measurement range:  0 ... 100 %RH
  • Accuracy at +23 °C (+73.4 °F) 1): ±0.8 %RH (0 ... 90 %RH)
  • T63 response time:  15 s
  • Temperature:
  • Sensor: Pt100 RTD Class F0.1 IEC 60751
  • Measurement range: -70 ... +180 °C (-94 ... +356 °F)
  • Accuracy at +23 °C (+73.4 °F) 1): ±0.1 °C (±0.18 °F)
  • 1) Defined against calibration reference
  • SI Traceable Calibration:
  • Uncertainty of relative humidity calibration (k = 2): ±0.5 %RH (0 ... 40 %RH); ±0.8 %RH (40 ... 95 %RH)
  • Uncertainty of temperature calibration (k = 2): ±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
  • Operating Environment:
  • Operating temperature range for probe body: -40 ... +80 °C (-40 ... +176 °F)
  • Operating temperature range for probe head: -70 ... +180 °C (-94 ... +356 °F)
  • Operating environment: Suitable for outdoor use
  • IP rating: IP66
  • Electromagnetic compatibility: Complies with EMC standard EN61326-1, Electrical equipment for measurement, control and laboratory use - EMC requirements - Industrial environment
  • Operational pressure: < 100 bar
  • Inputs and Outputs:
  • Operating voltage:15 ... 30 VDC
  • Current consumption: 10 mA typical; 500 mA max.
  • Digital output: RS-485, non-isolated
  • Default serial settings; 19200 bps N 8 2
  • Protocols; Modbus RTU
  • Output Parameters:
  • Relative humidity, temperature, dew point temperature, wet-bulb temperature, absolute humidity, mixing ratio, water concentration, water mass fraction, water vapor pressure, enthalpy
  • Mechanical Specifications:
  • Probe fitting: M22x1.5 and NPT1/2” fittings included
  • Connector: M12/5
  • Weight: 530 g (18.7 oz)
  • Materials:
  • Probe: AISI316
  • Probe body: AISI316
  • Cable jacket: FEP

  • (1) Vaisala HMP4 Humidity and Temperature Probe
  • (1) Instruction Manual

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