Product Overview

testo 635
Probes
Probe type
Humidity/temperature probe
Pressure dewpoint probe for
measurements in compressed air
systems, Fixed cable
Absolute pressure probe 2000 hPa
Robust air probe, T/C Type K,
Fixed cable
Precision pressure dewpoint probe
for measurements in compressed
air systems, including certificate
with test point -40°C tpd, Fixed
cable
Robust humidity probe for meas.
up to +125 °C, short-term up to
+140 °C, Ø 12 mm, e.g. exhaust
ducts, and for meas. of material
equilibrium moisture, e.g. bulk
goods
Thin humidity probe with built-in
electronics, incl. 4 attachable PTFE
protection caps for material
moisture equilibrium measurement
Scatter field probe for fast and
damage-free material moisture
measurement, with probe cable
1.2 m
Dimensions
Probe shaft/probe shaft tip
Measuring
range
0 to +100 %RH
-20 to +70 °C
0 to +100 %RH
-30 ... +50 °C
tpd
0 to +2000 hPa
-60 to +400 °C
0 to +100 %RH
-60 to +50 °C
tpd
0 to +100 %RH
-20 to +125 °C
0 to +100 %RH
0 to +40 °C
Woods:
〈 50 %
Building
materials:
〈 20
%
Accuracy
±2 %RH (+2 to +98 %RH)
±0.3 °C
±0.9 °C tpd (+0.1 to +50 °C tpd)
±1 °C tpd (-4.9 to 0 °C tpd)
±2 °C tpd (-9.9 to -5 °C tpd)
±3 °C tpd (-19.9 to -10 °C tpd)
±4 °C tpd (-30 to -20 °C tpd)
±5 hPa
Class 2
1)
±0.8 °C tpd (-4.9 to +50 °C tpd)
±1 °C tpd (-9.9 to -5 °C tpd)
±2 °C tpd (-19.9 to -10 °C tpd)
±3 °C tpd (-29.9 to -20 °C tpd)
±4 °C tpd (-40 to -30 °C tpd)
±2 %RH (+2 to +98 %RH)
±0.2 °C
±2 %RH (+2 to +98 %RH)
±0.2 °C
t
99
300 s
25 s
300 s
Part no.
Humidity probes
Pressure dewpoint probes
Absolute pressure probes
Air probes
300 mm
115 mm
300 mm
300 mm
60 mm
Ø 4 mm
Ø 12 mm
Ø 12 mm
Ø 4 mm
0636 9735
0636 9835
0638 1835
0602 1793
0636 9836
0636 2161
0636 2135
0636 6160
1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).
We measure it.
testo-635-P04 06.08.2013 14:21 Seite 4