TESTO 645 Instruction Manual page 40

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Velocity probes
Vane/temperature probe, can be attached to
handle or telescope
Vane/temperature probe, can be attached to
handle or telescope
Bendable vane probe for integrated velocity mea-
surement Range of application: -20 to +60 °C
Bendable vane probe for integrated velocity mea-
surement Range of application: -20 to +60 °
Low cost, robust hot bulb probe for measure-
ments in the lower velocity range
Robust hot bulb probe with handle and telescope
for measurements in the lower velocity range
Quick-reaction hot wire probe with telescope for
measurements in the lower velocity range with
direction recognition function
Flügelrad-Meßsonde mit Teleskop, T +60°C
max
High temperature probe with handle for long-term
measurements up to +350 °C
for
Accessories velocity probes
Telescope for plug-in vane probes, max. 1 m long
Handle for plug-in vane probes
Volume flow funnel to measure the extraction
capacity in ventilation systems
Extension cable between connection cable and
instrument for plug-in vanes
www.
Probes for testo 645 / 445
Sensor Meas. range Accuracy (System)
0,6 to 60 m/s ±(0,2 m/s +1 % of m.v.)
-30 to +140 °C
0,6 to 40 m/s ±(0,2 m/s +1 % of m.v.)
-30 to +140 °C
0,25 to 20 m/s ±(0,1 m/s +1,5 % of m.v.)
0,25 to 15 m/s ±(0,1 m/s +1,5 % of m.v.)
Hot bulb NTC 0 to 10 m/s ±(0,03 m/s +5% of m.v.)
-20 to +70 °C
Hot bulb NTC 0 to 10 m/s ±(0,03 m/s +5% of m.v.)
-20 to +70 °C
Hot bulb NTC 0 to 20 m/s ±(0,03 m/s +4% of m.v.)
-20 to +70 °C
Vane 0,4...40 m/s ±(0,2 m/s , +2 % of m.v.).
Vane, NiCr-Ni 0,6 to 20 m/s ±2,5 % of final value
-40 to +350 °C
Meas. range Dimension Connection cable
2,3 m Silicon
1,5 m Silicon
b) 20 to 400 m 3 /h 350x350 mm
5 m, PUR
40
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Ordering data
Part no..
0635 9540
0635 9640
0635 9440
0635 9340
0635 1549
0635 1049
0635 1041
0628 0005
0635 6045
Part no.
0430 0941
0430 3545
0554 0410
0409 0063
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