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The Rotronic HygroPalm HP31 is a handheld meter with a fix Rotronic probe that is capable of performing spot measurements and logging of relative humidity, temperature and psychrometric parameters.
| Parameters | Relative humidity and temperature |
|---|---|
| Probes | Fixed probe |
| Probe application range | -10…60 °C | 0…100 %RH |
| Device type | Handheld device (%RH / °C) |
| Functions | Spot measurements Time programmable interval logging MIN / MAX / AVG |
| Range of application | -10…60°C / 0…100%RH (non-cond.) |
| Battery | Lithium Polymer, 3,7V, 1000 mAh (integrated) 48h – Logging every 30s, screen off 10h – Screen always on |
| Psychrometric calculations | Dew / Frost point (Dp /Fp) Wet bulb temperature (Tw) Enthalpy (H) Vapor concentration (Dv) Specific humidity (Q) Mixing ratio by weight (R) Vapor pressure (E) Saturation vapor pressure (Ew) Saturation vapor density (SVD) |
| Calculation method | WMO Standard |
| Display refresh rate | 1 s (typical) |
| Logging interval | 1 s…24 h |
| Storage capacity | 8x8000 data points |
| Communication interfaces | Micro-USB port, HW4 compatible > V3.9 |
| Housing | ABS, TPR |
| IP protection rating | IP65 |
| Storage and transport conditions | -10…45°C / 10…90%RH |
| Dimensions | 160 x 63 x 30 mm |
| Weight | 185 g |
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- Field inspection and spot checks in HVAC
- Building management systems
- Agriculture and food industry
- Pharmaceutical industry