Rotronic HygroPalm HP22

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The HygroPalm 22 is the latest development in handheld measuring instruments for humidity, temperature and dew point.


The HygroPalm 22 is the latest development in handheld measuring instruments for humidity, temperature and dew point.

The instrument is based on AirChip3000 technology, allowing an unprecedented accuracy rate. Together with the latest sensor technologies measured this provides a cutting-edge, high-precision measurement instrument that measure humidity and temperature to a whole new level of performance tilt.


Probe typeStandard probe
Dimensions268 x 72 x 30 mm
Operating range-10…60 °C / 0…100 %rh
Accuracy at 23 ±5 °CProbe dependent
Measuring range with interchangeable probe0…100 %rh and -50…200 °C
Power supply / Power consumption9 V battery, power supply
4 mA consumption without back light
Long-term stability<1 %rh / year
Humidity sensorProbe dependent
Temperature sensorProbe dependent
Response time t 63Probe dependent
Allowed wind speed20 m/s, with filter
Psychrometric calculationsAll psychrometric values
Number of probe inputs1
Calibration / adjustmentmultipoint adjustment via keypad
Initialisation timeTypically <2 sec.
Measurement intervaltypically 1 second (without calculations)
Display typeGraphic display. Display freely configurable.
Backlightwith Backlight
Battery indicatorLow Batt. Display
Exploitation softwareROTRONIC HW4
Menu guidanceYes
Trend indicatorYes, for models with display
Statistical functionsMin / Max, Average
Probe adjustment by softwareYes, with service cable
Probe adjustment by keypad1 point or multi-point temperature and humidity adjustment
Event loggingSystem related events (FDA, GAMP)
Firmware updateWith internet and HW4 software
User informationfrom Software HW4 (devicemanager)
Data processing via HW4Yes
Device Protection by passwordYes
Sensor diagnostics (drift, state)Programmable; factory default – Off
Audit Trail/ electronic recordsFDA 21 CFR Part 11 and GAMP compatible
Choice of Battery / rechargeable batteryYes
Service InterfaceMini USB (UART)
Service InformationCalibration interval
Reverse voltage protectionMechanically in the connector
Max. cable lengthUp to 5 m with passive cable. Up to 100 m with active cable.
Max. probe cable length10 m
Enclosure materialABS
IP protection ratingIP40
Fire protection classComplies UL94-HB
FDA/GAMP compatibilityFDA 21 CFR Part 11 and GAMP compatible


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