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The Rotronic HygroPalm23-A measurement range (depending on probe model - sold separately) is from -100 to 200 °C (-148 to 392 °F) and 0 to 100 %RH.
The HP23-A is an indicator that can read the data from up to two Hygroclip 2 probes and display relative humidity, temperature and a calculated parameter. The probe input can be configured by the user to acknowledge a third party analog probe. The measuring range is within 0 to 100 %RH and -100 to 200°C (-148 to 392°F) depending on the HygroClip 2 probe model - sold separately. The indicator has a far reaching set of settings and functions that can be enabled and configured by the user either directly from the keypad or with the Rotronic HW4 software.
Flexible choice of probes |  |
Interface | |
Practical display | |
Ergonomic housing | |
Battery/Rechargeable battery compartment |
Probes for HygroPalm23
| No. of probe inputs | 2 (HygroClip2 or analog) |
| Humidity sensor | Depends on probe |
| Temperature sensor | Depends on probe |
| Accuracy at 23 ±5 °C | Depends on probe used (±0.8 %rh / ±0.1 K) |
| Long-term stability humidity sensor | < 1 %rh / year |
| Response time τ63 | Depends on probe |
| Start-up time | Typically < 3 s |
| Measurement range | Depends on probe |
| Electronics operating range | 0…100 %rh / -10…60 °C |
| Display type | Graphic display, backlit, parameters configurable, 3 decimal places |
| Alarm indicator | Yes |
| Real-time clock | Yes, with backup battery |
| Trend indicator | Yes |
| Power supply | 9 V battery or rechargeable battery |
| Power consumption | Typically 10 mA with backlight off |
| Power for 3rd-party probes | Yes, battery voltage |
| Battery indicator | Yes, status indicator |
| Firmware upgrade | Yes, via HW4 software |
| Sensor diagnostics (drift, state) | Programmable, default: off |
| Filter | Depends on probe |
| Max. air velocity at sensor | Depends on probe |
| Humidity / Temperature adjustment from keyboard | Yes, 1-point or multi-point temperature and humidity adjustment |
| Humidity / Temperature adjustment via dew point reference | Yes, temperature 2-point / humidity max. 100 points |
| Adjustment with software | 1-point & multi-point (%rh / °C), with service cable |
| Data logging memory function | 20,000 data points (2 x 10,000 data point pairs) |
| Psychrometric calculations | Dew point, wet-bulb temperature, mixing ratio, enthalpy, water vapor content, water vapor density |
| Event logging | Yes |
| Interface | Mini USB |
| Device lock | Via service cable & HW4 software |
| Data processing with HW4 | Graphs, statistics, analyses, qualification, etc. |
| Max. length service cable | 5 m |
| Housing material / weight | ABS / approx. 300 g |
| Dimensions | 196 x 72 x 35 mm |
| Standards | CE-compliant 2007 / 108 / EC |
| Audit trail & electronic records | FDA-CFR21 Part 11 / GAMP compliance |
| IP & fire protection rating | IP 40 / Complies with UL94-HB |
Dimensions
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