Technical Data For Testo 417; Tips And Assistance; Questions And Answers - TESTO 417 Instruction Manual

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10 Technical data for testo 417

Adjustment conditions for flow probes:
Adjustment in free jet Ø 350 mm, reference pressure 1013 hPa, based
on testo reference Laser Doppler Anemometer (LDA).
Feature
Measurement parameters
Accuracy
Resolution
Measuring range
Operating temperature
Storage temperature
Operating humidity
IP class
Level of contamination
Max. operating altitude
Nominal output
Battery type
Battery life
Dimensions
Weight

11 Tips and assistance

11.1 Questions and answers

Question Possible cause
Instrument battery is
is displayed
almost spent
(top right on the
display)
www.
10 Technical data for testo 417
Value
m/s, fpm
°C, °F
m³/h, cfm, l/s
±(0.1 m/s + 1.5% of measuring value)
±0.5 °C
0.01 m/s
0.1 m³/h (0 to +99.9 m³/h)
1 m³/h (other ranges)
0.3 to 20 m/s
0 to +50 °C
-20 to +50 °C
-20 to +50 °C
0 to 80 %RH / For indoor use only
IP10
PD2
≤ 2000 m above sea level
2 W @ 4,5 V DC
3 x 1.5 V AA battery
(included in the scope of delivery)
>50 h
236 x 108 x 45 mm
243 g
Possible solution
Replace instrument battery
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