TESTO 6681 Profibus, Instruction Manual, Page: 93 / 154

testo 6610
- 2.2 Product description 93
Application
•
Monitoring and regulating high-humidity processes, e.g. drying
(ceramics, tobacco, wood, food) and maturing (cheese, fruit).
•
At flow velocities > 1 m/s, an additional measuring uncertainty, not
higher than +1.5 % RH, is to be expected. To prevent this error and
ensure the highest measuring accuracy: Use condensation protector
0554 0166.
testo 6681 transmitter testo 6614 heated cable probe
Technical Data
Parameters
-
Humidity (% RH/°Ctd/°Ftd), etc.
-
Temperature
Measuring range
-
Humidity: 0 to 100 % RH
-
Temperature: - 40 to +180 °C/-40
to +356 °F
Material
-
Probe shaft: Stainless steel
-
Line: Sheathed, FEP
-
Connector: ABS plastic
Accuracy (at 25 °C/77 °F)*
Humidity
-
± (1.0 % RH + 0.007 x reading) for
0 to 100 % RH
-
0.02 % RH/K, dependent upon the
process temperature
(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
* Refer to the charts below for the
correlation between temperature
and accuracy.
Reproducibility
-
Better than ±0,2 % RH
Sensor
Response time without protective
filter: t 90 max. 15 sec.
L-A A
L
Temperature probe
Assembly
distance
max. 10 cm
L