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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
Tried-and-tested housing |
|
| 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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- Museums and Galleries
- Food Manufacturing and Ingredients Storage
- HVAC and Building Maintenance
- Indoor Air Quality
- Paper Industry
- Bulk Chemicals Manufacturing and Storage
- Sensitive Record and Document Storage
- Healthcare, Biotech and Pharmaceutical Manufacturing
- Grain Storage