Instructions for Use SS 20.261
Page 18
9 Technical data
Measuring parameters
Standard velocity w
N
of air, based on standard conditions
20 °C and 1013.25 hPa
Medium temperature T
M
Medium to be measured
Air or nitrogen, other gases on request
Measuring range w
N
0 ... 40 / 60 / 90 m/s
Lower detection limit w
N
0.2 m/s
Measuring accuracy w
N
- Standard
- Precision
*
±(5 % of measured value + 0.4 % of final value)
±(3 % of measured value + 0.4 % of final value)
Reproducibility w
N
±1,5 % of measured value
Response time (t
90
) w
N
3s (jump from 5 to 0 m/s)
Measuring range T
M
-20 ... +85 °C
Measuring accuracy T
M
±1 K (w
N
≥ 2 m/s)
Operating temperature
- Medium
- Electronics
-20 ... +85 °C
0 ... +70 °C
Humidity range
0 ... 95 % rel. humidity (RH), non-condensing
Operating overpressure
≤ 10 bar
Operating voltage U
B
24 V
DC
± 10 % (reverse voltage protected)
Current consumption
< 60 mA
Analog outputs
- Type
- R
L
- C
L
2 (short-circuit protected)
4 … 20 mA
**
≤ 300
≤ 10 nF
Electrical connection
Cable fixed on housing, 4-pin, length 2 m, pigtail
***
Line length
100 m max.
Protection class
****
III (PELV)
Type of protection
IP 54 (enclosure)
IP 67 (sensor)
Mounting
Compression fitting G1/2 (integrated)
Mounting tolerance
±3° (relative to flow direction)
Installation length
200 / 350 mm
Weight
250 g max.
Table 7
*
Under alignment conditions and with regard to the reproducibility of the reference.
**
Error messaging: 2 mA; exceeding measuring range: up to 22 mA
***
With cable end sleeves
****
According EN 50178
