measuring device for humidity, temperature and flow rate | GMH 3351
329,00 EUR
inkl. 19 % USt -> Preis zzgl. Versandkosten
Lieferzeit i.d. Regel ca. 0-4 Arbeitstage für Standardausführung
Art.Nr.: GMH3351Produktbeschreibung
Direct successor of GMH 3350
climate measuring device, probe not included, with integrated alarm and logger function
The GMH 33xx devices are universal precision hygrometers/thermometers with additional thermocouple input in one. The plug-in probes are exchangeable without recalibration, because the calibration data are stored on an integrated memory (TFS...). The thermocouple input T2 has been optimized to quickly acquire surface temperatures e.g. to indicate the dewpoint distance directly.
- calculation of dewpoint temperature, dewpoint distance and enthalpy
- additional temperature input (type K)
- logger function
applications:
- heating / ventilation air conditioning (HVAC)
- indoor air, meteorology, laboratory, research and teaching
- energy assessment / optimization of buildings
- cause study at structural damage
| measuring range: |
relative humidity: 0.0 % to 100.0 % r.h. ambient temperature: -40.0°C to +120.0°C (depending on TFS-probe) surface temperature: -80.0°C to +250.0°C flow rate: probes upon request |
| resolution: | 0.1 % r.h., 0.1°C or 0.1°F, 0.01 m/s |
| accuracy (device) (±1 digit) (at nominal temperature = 25°C): | relative humidity: ±0.1 % ambient temperature (Pt1000): ±0.2 % surface temperature (NiCr-Ni): ±0.5 % of measured value ±0.5°C |
| sensors: | no calibration required for exchange of humidity/temperature or flow rate probe (upon request) |
| sensor connection: | 6-pole screened Mini-DIN-socket |
| type K connection: | for miniature flat-pin plug |
| display: | two 4½-digit LCD displays (12.4 mm or 7 mm high), as well as additional functional arrows |
| working temperature: | -25°C to +50°C |
| relative humidity: | 0 % to 95 % r.h., non-condensing |
| storage temperature: | -25°C to +70°C |
| control elements: | 6 membrane keys |
| interface: | serial interface, direct connection to RS232 or USB interface of a PC via electrically isolated interface converters GRS 3100 or GRS 3105 resp. USB 3100 N (accessories) |
| power supply: | 9 V battery, as well as additional d.c. connector for external 10.5-12 V direct voltage supply (suitable power supply unit: GNG10/3000) |
| battery life: |
approx. 120 h (with TFS0100) |
| calculation of dewpoint: |
based upon humidity and temperature |
| calculation of dew point distance: | by means of a surface measurement |
| calculation of enthalpy: | thermal content h of the air |
| type K temperature measurements: | any standard type K probe (NiCr-Ni) is connectable, recommendation: GOF 400 VE, a correction value can be set to compensate losses of heat transfer |
| flow measurements: | two different systems for averaging are integrated: continuous averaging: continuous display of the average value averaging upon request: by starting the current measuring value will be displayed, as soon as the averaging time has expired the average value will be displayed, the device is in HOLD mode selectable averaging time: 1 s to 30 s |
| logger function: | manual: 1,000 data sets (data retrieval via buttons or interface) cyclic: 5,400 data sets (data retrieval via interface) adjustable cycle time: 1 s to 1 h (max. 64 recording sequences). The logger is started or stopped by keypad or interface. The software GSOFT3050 (see accessories) is available for comfortable read-out of logger data |
| analog output: | 0 V to 1 V |
| alarm: | input signal and alarm limits freely selectable horn / visual / interface |
| housing: | impact-resistant ABS plastic housing, membrane keyboard, transparent panel, integrated pop-up clip |
| dimensions: | 142 x 71 x 26 mm (H x W x D) |
| weight: | approx. 160 g (incl. battery) |
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