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Ordering data
Pressure probes
Pressure probe for measurement of flow
velocities and differential pressure
or absolute pressure
Pressure probe in refrigerant-resistant stainless
steel, without cable, screw-in thread 7/16"
UNF
a) Low-pressure probe
b) High-pressure probe
Accessories for pressure probes
Magnetic holder for pressure probes 0638.1445 / 0638.1545 / 0638.1645
Connecting cable for pressure probes 0638.1740 and 0638.1840
Plug-on velocity probes
Vane measuring probe, plugs onto handle or telescope
Ø 12 mm
Vane/temperature measuring probe, plugs onto handle or
telescope, Ø 16 mm
Vane/temperature measuring probe, plugs onto handle or
telescope, Ø 25 mm
Plug-on vane for integrating velocity measurement.
Operating range -20...+60 °C, 90° angling, Ø 60 mm
Plug-on vane for integrating velocity measurement.
Operating range -20...+60 °C, 90° angling, Ø 100 mm
Cup anemometer for meteorological wind measurement.
Cable 3 m.
Accessories for plug-on vane probes
Telescope for plug-on vane probes/ length max. 1 m/ extension on request/
connecting cable for pressure probes 0638.1740 and 0638.1840
Handle for plug-on vane probes
Gooseneck, flexible connection between measuring probe and connector
Magnetic probe holder for vane probes
114
Measuring method
Differential pressure
a)
Differential pressure
b)
Absolute pressure
c)
Pressure cell
Pressure cell
****fulfills EN 61326 - 1 : 1997 in connection with control unit
*****does not fulfill: EN 61326 - 1 : 1997; does not fulfill EN 61326 - 1 : 1997 / A1:1998
Meas. range
±0.03 hPa
±10 hPa*****
±0.1 hPa (0...20 hPa)
±100 hPa***
±0.5 % of value (rest)
2000 hPa***
±5 hPa
±1% of high range,
overload protected up
-1...10 bar
to 32 bar
0...30 bar
±1% of high range,
overload protected up
to 70 bar
Meas. range
±(0.2 m/s ±1 %
0.6...20 m/s
-30...+140 °C *
of value)
0.4...60 m/s
±(0.2 m/s
-30...+140 °C *
±1 % of value****
0.4...40 m/s
±(0.2 m/s
-30...+140 °C *
±1 % of value****
±(0.1 m/s
0.25...20 m/s
+1.5 % of value)
±(0.1 m/s
0.2...15 m/s
+1.5 % of value)
±0.3 m/s,
0.7...30 m/s
±5 % of value
* in short-term measurments
Connecting cable
2.3 m silicone
DIN round plug
1.5 m silicone
***fulfills EN 61326 - 1 : 1997
Accuracy
Order no.
0638.1445
0638.1545
0638.1645
0638.1740
0638.1840
Order no.
0554.0225
0409.1740
Accuracy
Order no.
0635.9443
0635.9540
0635.9640
0635.9440
0635.9340
0635.9045
Order no.
0430.0941
0430.3545
0430.0001
0554.0430
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