Insertion probes for water activity measurement

HC2-HP28

Handheld Probe for Measuring Bulk Packaged Materials

The insertion probe is suitable for measurement in bulk materials, bricks, concrete, etc. It measures humidity and temperature and calculates the dew/frost point.

Applications
10 mm insertion probe: measurements in dusty bulk materials such as flour, sugar, etc.

Features
• Range of application: -40…85 °C / 0…100 %rh
• Digital interface (UART) and scalable analog outputs, 0…1 V
• Standard output scaling: 0…1 V = -40…60 °C / 0…100 %rh
• Adjusted at 23 °C and 10, 35, 80 %rh

More Information
Probe type Insertion probe
Humidity sensor Hygromer IN-1
Temperature sensor PT100 1/3 DIN Class B
Long-term stability <1 %rh / year
Accuracy w. adjustment profile "standard" at 23 °C / 10, 35, 80 %rh ± 0.8 %rh / ± 0.1 K
Accuracy at 23 ±5 °C ± 0.008 aw / 0.8 %rh / ±0.1 K
Reproducibility Airchip <0.02 %rh / 0.01 K
Response time t 63 <20 s, with filter
Dimensions 280 mm / 500 mm
Operating range -40…85 °C / 0…100 %rh
Allowed wind speed 40 m/s, with filter
Exploitation software ROTRONIC HW4
Psychrometric calculations Dew or frost point
Analogue outputs scaleable by the user Yes
Software Update With internet and HW4 software
User information from Software HW4 (devicemanager)
Data processing via HW4 with interface cables
Type of output signals 2 x 0…1 VDC
Digital output signal (standard) UART
Service Interface UART
IP protection rating IP50
FDA/GAMP compatibility FDA 21 CFR Part 11 and GAMP compatible
Measurement interval 1 s
Probe adjustment by software 1 Point & multipoint %rh & °C
Device Protection by password Yes
Analog output signal (standard) 0…1 V = 0…100 %rh; 0…1 V = -40…60 °C
Reverse voltage protection Mechanically in the connector
Max. cable length Up to 5 m with passive cable. Up to 100 m with active cable.
Probe material Stainless steel 1.4305 (V2A)
Enclosure material POM
Weight 200 g
Start-up time 1,5 s
CE / EMC conform 2007 / 108 / EG
FDA / GAMP FDA 21 CFR part 11 / GAMP5
Material Stainless steel DIN 1.4305 (probe), POM (handle)
Power supply 3.2…5 VDC, calibrated at 3.3 VDC, current: ~4.5 mA
Temperature dependence 0.001 K/K, 0.0002 aw/K
For use with HygroLab C1, HP23-AW-A
Filter type Sintered steel with 5 μm pore size

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