TESTO 6681 Instruction Manual page 97

testo 6681 transmitter
Technical Data
Parameters
Dewpoint (°Ctd/°Ftd), etc.
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Temperature
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Measuring range
Dewpoint: - 60 to + 30 °Ctd/-148 to
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+212 °Ftd
Temperature: - 40 to +120 °C -40
-
to +248 °F
(Temp. durability up to +180
°C/+356 °F)
Material
Probe shaft: Stainless steel
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Line: Sheathed, FEP
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Connector: ABS plastic
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Accuracy (at 25 °C/77 °F)*
Dewpoint
± 1 K at 0 °Ctd/+32 ° Ftd
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± 2 K at -40 °Ctd/- 40 ° Ftd
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± 4 K at -50 °Ctd/-58 ° Ftd
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± 6 K at -60 °Ctd/-76 ° Ftd
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Dependency on process temperature
(Deviation from 25 °C/77 °F)
± 0,1 Ktf/K at -40 °C...25 °C/
-
-40 °F...+77 °F
testo 6610
testo 6615 trace humidity cable probe
L-A
L
± 0,2 Ktf/K at 25 °C...50 °C/
-
77 ° F...+122 °F
± 0,4 Ktf/K at 50 °C...120 °C/
-
+122 ° F...+248 °F
Temperature
±0.15 °C (0.27 °F)
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Slope PT100 class AA
* Refer to the charts below for the
correlation between temperature
and accuracy.
Reproducibility
Better than ±0,2 % RH
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Sensor
Response time without protective
filter: t 90 max. 15 sec.
Probe dimensions
Diameter of probe shaft: 12 mm
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L = approx. 200/500 mm
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L – A = 165/465 mm
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A, see Table Filters, chapter
-
2.2.1.4.
Probe length incl. probe shaft and
filter
1/2/5/10 m
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- 2.2 Product description 97
A