The Rotronic HygroPalm21 measurement range is from -10 to 60 °C (14 to 140 °F) and 0 to 100 %RH.
The HP21 is an indicator that displays humidity, temperature and the dew or frost point. It is ideal for spot checking HVAC installations, manufacturing and storage areas, and generally for all ambient air measurement within the temperature range of -10 to 60°C (14 to 140 °F). The indicator has a broad set of settings and capacities that can be configured and enabled by the user with the Rotronic HW4 software. The Hp21 can still be utilized pretty much as a simple humidity and temperature indicator.
Integral or interchangable probe • The HygroPalm21 has an integral probe and the HygroPalm22 is used with an interchangeable probe
Easy to read display • Clear, backlit graphic display for easy reading
AirChip3000 • Compensates humidity and temperatureover 30,000 reference points • 2,000 data point memory • Dew/frost point calculation • Sensor auto-diagnostics and automatic correction • Active alarming and information • ASIC (Application Specific Integrated Circuit), micro-controller and EEPROM on one chip
Tried-and-tested housing • Ergonomic and robust ABS housing with rubber grip for secure handling
Specifications
HP21
HP22
No. of probe inputs / Probe type
Integrated sensors
1/HygroClip2®
Humidity sensor
Hygromer® M3-R
Depends on probe
Temperature sensor
Pt100 1/3 Class B
Depends on probe
Probe cable extension
N/A
Passive: max. 5 m, active 100 m
Accuracy at 23±5 °C
± 1.0 %rh / ± 0.2 K
Depending on probe & adjustment profile
Resolution AirChip3000
< 0.02 %rh / 0.01 K
Long-term stability humidity sensor
<1 %rh / year
Response time τ63
<3 seconds
Depends on probe
Start-up time
Typically 3 seconds
Measurement range
-10…60 °C / 0…100 %rh
-50...200 °C
Electronics operating range
-10…60 °C / 0…100 %rh
Display type
Graphic display, backlit, Parameters configurable
Trend indicator
Yes
Power supply
9 V battery / mains adaptor
Power consumption
Typically 4mA with backlight off
Battery indicator
Low battery indicator
Firmware update
Possible via HW4 software
Sensor diagnostics (drift, state)
Programmable, default: off
Sensor protection
Polyethylene filter
Depends on probe
Max. air velocity at probe
20 m/sec
Depends on probe
Probe adjustment from the keypad
1-point offset
Multipoint
Probe adjustment with HW4 software
Humidity: Multi point, Temperature 2 point
Data logging 2000 data point memory
internal
in probe
Psychrometric calculations
Dew point
All available
PC interface
Via ROTRONIC Interface cable, HW4 compatible
Dataprocessing with HW4
Graphs, statistics, analyses, qualification etc.
Audit Trail & Electronic Records
FDA-CFR21 Part 11 / GAMP compliance
Housing material / weight
ABS / approx. 210g
Standards
CE-compliant, 2007/108/EG
IP & fire protection rating
IP40 / complies with UL94-HB
Dimensions
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