TESTO 6681 Instruction Manual page 85

Application
Monitoring and regulating the production and storage air quality in air
•
ducts when manufacturing and storing hygroscopic products
Meeting the top accuracy requirements
•
Air duct applications for which a metal housing is required.
•
testo 6681 transmitter
Technical Data
Parameters
Humidity (% RH/°Ctd/°Ftd), etc.
-
Temperature
-
Measuring range
Humidity: 0 to 100 % RH
-
Temperature: - 30 to +150 °C/-22
-
to +302 °F
Material
Probe shaft: Stainless steel
-
Line: Sheathed, FEP
-
Connector: ABS plastic
-
Accuracy (at 25°C/77°F)*
Humidity
2
For constant use in high humidity (> 80% rF at ≤ 30°C for
> 12 h, > 60% rF at > 30°C for > 12 h), please contact us via
www.testo.com/service-contact
testo 6610
testo 6612 duct probe
± (1,0 % RH + 0.007 x reading) for
-
0 to 90 % RH
± (1,4 % RH + 0.007 x reading) for
-
90 to 100 % RH
0.02 % RH/K, dependent upon the
-
process temperature
2
(with a deviation of 25 °C/+77 °F)
0.02 % RH/K, dependent upon the
-
electronics temperature
(with a deviation of 25 °C/+77 °F)
Temperature
±0.15 °C (0.27 °F)
-
Slope PT1000 class AA
*
- 2.2 Product description 85
Refer to the charts below for the
correlation between temperature
and accuracy.