Vaisala HMP4 temperature and humidity probe from Finland
Product Description:
VAISALA Relative Humidity and Temperature Probe HMP4 for High Voltage Applications
The Vaisala HUMICAP humidity and temperature probe HMP4 is designed specifically for high-pressure applications such as marine, breathing air, and compressed air systems in industrial applications, where measurement performance and chemical tolerance are crucial. HMP4 is part of the Indigo product line and is compatible with the Indigo 200 series host devices and the free Vaisala Insight PC software.
Verified performance of Vaisala HUMICAP
Vaisala was the original innovator of thin-film capacitive humidity measurement technology and has now become the industry standard for humidity measurement.
Chemical cleaning can minimize the impact of pollutants to the greatest extent possible
In environments with high concentrations of chemicals and cleaning agents, chemical cleaning options help maintain measurement accuracy between calibration intervals.
Flexible Connection
This probe is plug and play, compatible with Vaisala Indigo host devices, and can be used as a standalone Modbus RTU probe or connected to Vaisala Insight PC software.
The unique advantages of HUMICAP sensor technology
- Excellent long-term stability
- Not sensitive to dust and most chemicals
- Chemical cleaning option for stable measurement in high concentration chemical environments
- Sensor heating allows for measurement even in condensing environments, with complete recovery of condensation
Finnish Vaisala VAISALA HMP4 Temperature and Humidity Probe Features and Advantages:
- 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)
- Work pressure 0 10 MPa(0 ... 100 bar)
- Sensor blowing provides excellent chemical resistance
- Modbus RTU via RS-485
- Plug and play compatible with Vaisala Indigo series transmitters
- Traceable calibration certificate: humidity at 5 o'clock, temperature at 1 o'clock
Finnish Vaisala VAISALA HMP4 Temperature and Humidity Probe Technical Data:
measured performance
relative humidity
sensor | HUMICAP R2 Composite Sensor |
measuring range | 0 100 %RH |
temperature
sensor | Pt100 RTD Class F0.1 IEC 60751 |
measuring range | -70 ... + 180 °C (-94 ...+356 °F) |
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) |
work environment
The working temperature range of the probe body | -40 ... + 80 °C (-40 ... +176 °F) |
The working temperature range of the probe | -70 ... + 180 °C (-94 ...+356 °F) |
IP rating | IP66 |
electromagnetic compatibility | Compliant with EMC standard EN61326-1 Electromagnetic Compatibility Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use (Industrial Environment) |
Working pressure | < 100 bar |
input and output
working voltage | 15 ... 30 VDC |
Current consumption | 10 mA (typical value) |
500 mA (maximum) | |
Digital Output | RS-485, Non-Isolated |
Default Serial Settings | 19200 bps N 8 2 |
agreement | Modbus RTU |
Output parameters | Relative humidity, temperature, dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, water content, water mass fraction, vapor pressure, enthalpy value |
Structure specifications
Probe connection device | Including M22x1.5 and NPT1/2 "fittings |
joint | M12/5 |
weight | 530 grams (18.7 ounces) |
probe | AISI316 |
Probe body | AISI316 |