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Testo 635-1 - Humidity Measuring Instrument
Brand: TestoThe Testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity, and dew point – in compressed air as well.
State of the art technology and a large selection of probes, which are available optionally, allow for a wide variety of measuring possibilities.
The Testo 635-1 is for measuring air moisture, material equilibrium moisture, and pressure dew point in compressed air systems.
Up to 3 temperature or humidity probes can be displayed; data transmission is radio-controlled, or wireless.
Measurement data can be transmitted by infrared to the Testo printer. It is also possible, during cyclical printing, to print measurement data once every minute, for example.
The Testo 635-1 immediately displays the dew point difference between ambient air and the wall surface, when analyzing moisture on walls and ceilings.
There are precision probes up to -60°C tpd available to inspect pressure dewpoint in compressed air systems.
The humidity sensor developed by Testo has proven itself world-wide and has outstanding features in terms of precision, long-term stability, temperature resistance and robustness.
Features- Probes available as an option mean you can measure air humidity, temperature, absolute pressure, and dew point in compressed air
- Measures air moisture, material equilibrium moisture, pressure dew point
- Calculates dew point and dew point distance
- Cyclical printing of readings once a minute, for example
Specifications
Brand
Delivery Scope
- Testo 635-1 Temperature and Humidity Measuring Instrument, including Calibration Protocol and Batteries
- Caution: The instrument can only be commissioned with a probe. These are available separately.
Weight
- 15 oz. / 428 g
Dimensions
- 9 x 3 x 2 in. / 220 x 74 x 46 mm
Operating Temperature
- -4° F to 122° F / -20° C to +50° C
Housing
- ABS / TPE / Metal
Battery Type
- Alkaline, Type AA
Battery Life
- 200 h
Storage Temperature
- -22° F to 158° F / -30° C to +70° C
Temperature - NTC
- Measuring Range: -40° F to 302° F / -40° C to +150° C
- Accuracy: ± 0.4° F (-13° F to 166.8° F) / ± 0.2° C (-25° C to +74.9° C) | ± 0.7° F (-40° F to -13.2° F) / ± 0.4° C (-40° C to -25.1° C) | ± 0.7° F (167° F to 211.8° F) / ± 0.4° C (+75° C to +99.9° C) | ± 0.5 % of mv (Remaining Range)
- Resolution: 0.1° F / 0.1° C
Temperature - Type K TC
- Measuring Range: -328.0° F to 2498° F / -200° C to +1370° C
- Accuracy: ± 0.5° F (-76° F to 140° F) / ± 0.3° C (-60° C to +60° C) | ± (0.4° F + 0.5 % of mv) (Remaining Range) / ± (0.2° C + 0.5 % of mv) (Remaining Range)
- Resolution: 0.1° F / 0.1° C
Humidity - Capacitive
- Measuring Range: 0 to +100 %RH
- Accuracy: See probe data
- Resolution: 0.1 %RH
Absolute Pressure
- Measuring Range: 0.0 hPa to +800.0 inH₂O / 0 to 2000 hPa
- Accuracy: See probe data
- Resolution: 0.0 inH₂O / 0.1 hPa
- Localizing Mould
- Monitoring Production and Storage Conditions