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Velocity probes with handle/telescope
for testo 400
Economical, rugged hot ball probe for measurements in the low flow rate
range. With handle.
Rugged hot ball probe with handle and telecope (190 - 850 mm)
for measurements in the low flow rate range.
Rapid-response hot wire probe with telescope (160 - 760 mm)
for measurements in the low flow rate range with direction
detection.
High-temperature probe with handle for long-term measurements up to
+350 °C / Ø 25 mm
Accessories for velocity probes
Stainless steel pitot tubes
(longer designs on request)
Silicone hose to connect pitot tubes with pressure probes
Volume flow rate measuring funnel to measure the suction rate of ventilation
systems
a) Measuring range 20...400 m
b) Measuring range 20...400 m
- In conjunction with 0635.1041 or 0635.9540. -
Other probes
3-function probe for simultaneous measurement of temperature,
humidity and velocity. With plug-on head – please order connecting
cable (see p. 56).
Comfort probe for turbulence measurements,
with telescope and tripod. Fulfils the requirements of
DIN 1946 Part 2 and VDI 2080
Note: Thermal probes are calibrated to the average annual atmospheric pressure of 1013 hPa at
sea level when calibrated in m/s.
In still air (v < 0.5 m/s), the displayed temperature value will be in error due to local heating
effects from the thermal probe.
3
/h; funnel factor 22
3
/h; funnel factor 22
Meas. range
0...10 m/s:
0...10 m/s
± (0.03 m/s +5 % of value)
-20...+70 °C
0...10 m/s
0...10 m/s:
-20...+70 °C
± (0.03 m/s + 5 % of value)
0...20 m/s:
0...20 m/s
± (0.03 m/s +4 % of value)
-20...+70 °C
±0.2 m/s ±2 % of value
0.6...20 m/s
-40...+350 °C
Temp. max.
+600 °C
+600 °C
+600 °C
+600 °C
+1000 °C
+1000 °C
Meas. range
as 0635.1549****
0...10 m/s
0...100 %RH
±2 %RH (2...98 %RH)
(probe tip)
±0.4 °C (0...+50 °C)
-20...+70 °C
±0.5 °C (rest of range)
0...5 m/s: ±(0.03 m/s ±4
0...5 m/s
% of value)
0...+50 °C
±0.3 °C
****fulfills EN 61326 - 1 : 1997 in connection with control unit
Ordering data
Accuracy
Order no.
0635.1549
(see note)
0635.1049
(see note)
0635.1041
(see note)
0635.6045
****
Ø
Order no.
Length
0635.2145
7 mm
350 mm
7 mm
0635.2345
1000 mm
8 mm
0635.2140
500 mm
8 mm
0635.2240
1000 mm
8 mm
0635.2041
350 mm
0635.2042
8 mm
750 mm
5 m
0554.0440
0554.0400
0554.0410
Accuracy
Order no.
0635.1540
(see note)
0628.0009
(see note)
115
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