HOME
CONTACT US

HD2301.0 Thermohygrometer, instrument measuring range for temperature -200°C +650°C,
for humidity 0,0 - 100,0%RH.
Storage of maximum, minimum, average value. Functions: REL, HOLD and auto power off which can be
disabled, IP 67 protection degree.

HD2301.0 Thermohygrometer

Model  Description 
HD 2301.0  HD2301.0 Thermohygrometer

The HD2301.0 is a portable instrument with a large LCD display. It measures relative humidity and
temperature using a Pt100 sensor or thermocouple humidity temperature combined probe.
Temperature only is measured by immersion, penetration or contact probes.
The sensor can be a Pt100, Pt1000 or Ni1000. When the humidity/temperature combined probe is connected, the instrument calculates and displays the absolute humidity, the dew point, the partial vapor pressure.

The probes are fitted with an automatic detection module, with the factory calibration settings already being memorized inside. The Max, Min and Avg function calculate the maximum, minimum or average values.

Dimensions  (Length x Width x Height) 140x88x38mm 
Weight  160g (complete with batteries) 
Materials  ABS 
Display  2x41⁄2 digits plus symbols
Visible area: 52x42mm 
Operating conditions   
Operating temperature  -5 - +50°C 
Storage temperature  -25 - +65°C 
Working relative humidity   0 - 90%RH without condensation 
Protection degree  IP67 
Measuring unit  °C - °F - %RH - g/m3 - Td - hPa 
Measurement of relative humidity by Instrument   
Measurement range  0 - 100%RH 
Resolution   0.1%RH 
Accuracy  ±0.1%RH 
Drift after 1 year   0.1%RH/year 
Measurement of temperature by Instrument   
Pt100 measurement range  -200 - +650°C 
Pt1000 measurement range  -200 - +650°C 
Resolution  0.1°C 
Accuracy  ±0.1°C 
Drift after 1 year  0.1°C/year 

TEMPERATURE MEASUREMENT
TP472I: Immersion probe, sensor Pt100. Stem Φ 3mm, length 300mm. Cable length 2 metres.
TP472I.0: Immersion probe, sensor Pt100. Stem Φ 3mm, length 230mm. Cable length 2 metres.
TP473P.0: Penetration probe, sensor Pt100. Stem Φ 4mm, length 150mm. Cable length 2 metres.
TP474C.0: Contact probe, sensor Pt100. Stem Φ 4mm, length 230mm, contact surface Φ 5mm.
Cable length 2 metres.
TP475A.0: Air probe, sensor Pt100. Stem Φ 4mm, length 230mm. Cable length 2 metres.
TP472I.5: Immersion probe, sensor Pt100. Stem Φ 6mm, length 500mm. Cable length 2 metres.
TP472I.10: Immersion probe, sensor Pt100. Stem Φ 6mm, length 1,000mm. Cable length 2 metres. RELATIVE HUMIDITY AND TEMPERATURE PROBES
HP472AC: Combined probe %RH and temperature, dimensions Φ 26x170mm.
Connection cable length 2 metres.
HP572AC: Combined probe %RH and temperature - thermocouple K sensor. Dimensions Φ 26x170mm. Connection cable length 2 metres.
HP473AC: Combined probe %RH and temperature. Handle dimensions Φ 26x130mm, probe Φ 14x110mm. Connection cable length 2 metres.
HP474AC: Combined probe %RH and temperature. Handle dimensions Φ 26x130mm, probe Φ 14x210mm. Connection cable length 2 metres.
HP475AC: Combined probe %RH and temperature. Connection cable length 2 metres. Handle Φ 26x110mm. Stainless steel stem Φ 12x560mm. Point Φ 13.5x75mm.
HP477DC: Combined sword probe %RH and temperature. Connection cable length 2 metres.
Handle Φ 26x110mm. Probes stem 18x4mm, length 520mm. Temperature probes without SICRAM module
TP47.100: Immersion probe sensor Pt100 direct 4 wires. Probes stem Φ 3mm, length 230mm. 4 wire connection cable with connector, length 2 metres.
TP47.1000: Immersion probe sensor Pt1000. Probes stem Φ 3mm, length 230mm.
Connection cable 2 wires with connector, length 2 metres.
TP47: Only connector for probe connection: direct 4 wire Pt100, 2 wire Pt1000.
Accessories
HD11: Saturated solution at 11.3%RH@20°C for calibration of relative humidity probes, fixing adapter M24x1.5
HD33: Saturated solution at 33.0%RH@20°C for calibration of relative humidity probes, fixing adapter M24x1.5
HD75: Saturated solution at 75.4%RH@20°C for calibration of relative humidity probes, fixing adapter M24x1.5
Protection for humidity probes HP472AC, HP572AC (M24x1,5)
P1: Stainless steel grid protection for probes Φ 26 mm.
P2: 20μ sintered polyethylene PE protection for probes Φ 26 mm.
P3: 20μ sintered bronze protection for probes Φ 26 mm.
P4: 20μ sintered PE complete cap for probes Φ 26 mm.
Protection for humidity probes HP473AC, HP474AC, HP475AC (M12x1)
P5: Stainless steel grid protection for probes Φ 14 mm.
P6: 20μm sintered complete protection made of stainless steel for probes Φ 14 mm.
P7: 10μm sintered complete protection made of PFTE for probes Φ 14 mm. UR-8