Testo’s 635-1 allows users to measure air moisture, material equilibrium moisture and pressure dew point inside compressed air systems.
The device is able to accept both Type K and NTC humidity probes (sold separately) and each of these clips directly into the tester’s ports at the bottom of the device. When using the type K probe temperature measurements can be taken from -200 to 1370°C and when using a NTC humidity probe the device has range of -40 to 150°C.
As well as these probes the Testo 635 is compatible with other probe types such as absolute pressure and type T.
|
Storage temperature |
-30 to +70 °C |
|---|---|
|
Operating temperature |
-20 to +50 °C |
|
Battery type |
Alkali manganese, mignon, Type AA |
|
Battery life |
200 h |
|
Weight |
428 g |
|
Dimensions |
220 x 74 x 46 mm |
|
Material/Housing |
ABS/TPE/Metal |
|
Probe - Typ T (Cu-CuNi) |
|
|---|---|
|
Meas. range |
-200 to +400 °C |
|
Accuracy |
±0.3 °C (-60 to +60 °C) ±0.5% of mv (remaining range) |
|
Resolution |
0.1 °C |
|
Probe - NTC |
|
|
Meas. range |
-40 to +150 °C |
|
Accuracy |
±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) |
|
Resolution |
0.1 °C |
|
Probe type Type K |
|
|
Meas. Range |
-200 to +1370 °C |
|
Accuracy |
±0.3 °C (-60 to +60 °C) ±(0.2 °C + 0.3% of mv) (remaining range) |
|
Resolution |
0.1 °C |
|
Probe type Absolute pressure probe |
|
|
Meas. Range |
0 to 2000 hPa |
|
Resolution |
0.1 hPa |
|
Probe type humid. sensor, cap. |
|
|
Meas. Range |
0 to +100 %RH |
|
Resolution |
0.1 %RH |
