Product Overview

testo 635
Technical data
testo 635-1
testo 635-2
testo 635-1 thermohygrometer incl. battery and
calibration protocol
testo 635-2 humidity/temperature measuring
instrument with measurement value store, PC
software and USB-cable incl. battery and
calibration protocol
Part no. 0560 6351
Part no. 0563 6352
General technical data
Operating temperature -20 to +50 °C
Storage temperature -30 to +70 °C
Battery type Alkali manganese, mignon, Type AA
Battery life 200 h
Dimensions 220 x 74 x 46 mm
Weight 428 g
Housing material ABS/TPE/Metal
Warranty 2 years
Sensor types
Type K (NiCr-Ni) NTC (humidity probe) Testo humid. sensor,
cap.
Absolute pressure
probe
Measuring range -200 to +1370 °C -40 to +150 °C 0 to +100 %RH 0 to 2000 hPa
Accuracy
±1 digit
±0.5 °C (-60 to +60 °C)
±(0.2 °C + 0.3% of mv)
(remaining range)
±0.2 °C (-25 to +74.9 °C)
±0.4 °C (-40 to -25.1 °C)
±0.4 °C (+75 to +99.9 °C)
±0.5% of mv (remaining
range)
See probe data See probe data
Resolution 0.1 °C 0.1 °C 0.1 %RH 0.1 hPa
We measure it.
Common advantages
· Connection of 3 radio probes
· Measurement of air humidity, material equilibrium
moisture and pressure dew point in compressed air
systems
· Display of dew point difference, min, max and mean
values
· Print data on Testo printer (optional)
· Backlit display
· Protection type IP 54
Advantage testo 635-1
· Cyclic printing of readings on testo printer, e.g. once per
minute
Advantages testo 635-2
· Instrument store for 10000 readings
· PC software for filing and documenting measurement
data
· Direct display of material moisture due to storable
characteristics curves (Basis: material equilibrium
moisture)
· U-value probe connection possible
· Storage of single measurements or measurement series
by measurement site
· Quick access to the most important functions via user
profiles
testo-635-P02 06.08.2013 14:19 Seite 2