HC2-HP28 Handheld Probe for Measuring Bulk Packaged Materials

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This probe is suitable for measurement of humidity in dusty bulk materials, flour, sugar, etc. It measures humidity and temperature and calculates the dew/frost point.


  • Range of measurement: -40â¦85 °C / 0â¦100 %RH
  • Digital interface (UART) and scalable analog outputs, 0â¦1 V
  • Standard output scaling: 0â¦1 V = -40â¦60 °C / 0â¦100 %RH
  • Adjusted at 23 °C and 10, 35, 80 %RH
Probe type Insertion probe
Dimensions 280 mm
Weight 200 g
For use with HygroLab C1, HP23-AW-A
Operating range electronics -40…85 °C / 0…100 %RH
Range of application -40…85 °C (-40…185 °F) / 0…100 %RH
Accuracy at 23 ±5 °C ± 0.008 aw / 0.8 %RH / ±0.1 K
Accuracy w. adjustment profile "standard" at 23 °C / 10, 35, 80 %RH ± 0.8 %RH / ± 0.1 K
Power supply 3.2…5 VDC, calibrated at 3.3 VDC, current: ~4.5 mA
Long-term sensor stability <1 %RH / year
Humidity sensor HYGROMER® WA-1 / Pt-100, 1/3 DIN Class B
Temperature dependence 0.001 K/K, 0.0002 aw/K
Temperature sensor PT100 1/3 DIN Class B
Filter type Sintered steel with 5 μm pore size
Response time t 63 <20s, with filter
Allowed wind speed 40 m/s, with filter
Psychrometric calculations Dew or frost point
Reproducibility Airchip <0.02 %rh / 0.01 K
Start-up time 1.5s
Measurement interval 1s
Exploitation software 1 Point & multipoint %RH & °C
Firmware update With internet and HW4 software
User information from Software HW4 (devicemanager)
Data processing via HW4 with interface cables
Device Protection by password Yes
Type of output signals 2 x 0…1 VDC
Analog outputs scaleable by the user Yes
Analog output signal (standard) 0…1 V = 0…100 %RH; 0…1 V = -40…60 °C
Digital output signal (standard) UART
Service Interface UART
Reverse voltage protection Mechanically in the connector
Max. cable length service cable 5m
Probe material Stainless steel 1.4305 (V2A)
Enclosure material POM
Material Stainless steel DIN 1.4305 (probe), POM (handle)
IP protection rating IP50
FDA/GAMP compatibility FDA 21 CFR Part 11 and GAMP compatible
FDA / GAMP FDA 21 CFR part 11 / GAMP5
CE / EMC conform 2007 / 108 / EG

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