Precision material humidity measuring instrument HM850

Professional material humidity measuring instrument with connection socket for external humidity sensor and temperature probe, 493 integrated material characteristics, Hold and Auto-Hold-function, automatic and manual temperature compensation, 9-level humidity evaluation (wet ... dry), Sort function, automatic switch off, PC-interface, analog output (0 ... 1 V)

Additional features: 4 individual programmable user defined characteristics (approx. 20 base points per characteristics), 2 Logger functions (data recording), real time clock with calendar

Note: Measuring principle based on measurement of conductance between two electrodes (resistive measuring method), due to which the wide range is suitable for all sorts of wood, minerals (e.g. gypsum board, porous concrete or flooring) and other materials

Technical data
Measuring principle:
Humidity: Resistive material humidity measurement as per DIN EN 13183-2:2002
Temperature (external): Thermocouple, NiCr-Ni (Typ K)
Temperature (internal): NTC
Characteristics: 465 wood types, 28 building materials, 4 freely programmable
Measuring range:
Humidity: 0.0 ... 100.0% weight humidity (depending on respective characteristics)
Temperature: -40.0 ... +200.0 °C (-40.0 ... +392.0 °F)
Resolution: 0.1% as well as 0.1 °C (0.1 °F)
Instrument accuracy, at 25 °C nominal temperature:
Wood: ±0.2% weight humidity (Deviation from respective characteristics in the range of 6 ... 30%)
Building materials: ±0.2% weight humidity (Deviation from respective characteristics)
Temperature (external): ±0.5% v.MW ±0.3 °C
Sensor connection: BNC (Humidity), thermovoltagefree NiCr-Ni-socket (Temperature)
Temperature compensation: automatic or manual
Display: Two 4-position LC-display
Output: freely scalable analog output (0-1V) or serial interface
Logger functions:
-manual: 99 records
-cyclic: 10000 records
-adjustable cycle time: 30 ... 3600s
Functions: Hold and Auto-Hold functions, automatic and manual Temperature compensation, 9-level humidity evaluation (wet ... dry), Sort function, automatic switch off (1 ... 120min, de-selectable)
Additional functions: 4 individual programmable user defined characteristics (approx. 20 base points per characteristics), 2 Logger functions (data recording), real time clock with calendar
Power supply: 9 V battery type IEC 6F22 or from power supply unit (10.5 ... 12 V)
Current consumption: approx. 2.5 mA