Instructions for Use SS 20.200
Page 10
8 Technical data
Measuring quantity
Standard velocity w
N
of air, based on standard condi-
tions of 20 °C and 1013.25 hPa
Measuring medium
Air or nitrogen
Measuring range w
N
0 ... 1 / 2.5 / 10 / 20 m/s
Lower detection limit w
N
0.06 m/s
Switching threshold w
N
5 ... 95 % of measuring range; min. 0.1 m/s
Switching threshold setting
Standard:
Potentiometer (single turn: 270°)
Option:
Pre-programmed
Switching hysteresis
5 % of switching threshold, min. 0.05 m/s
Reproducibility w
N
±(2 % of switching thr 0.1 m/s)
Response time (t
90
) w
N
3 s (jump from 0 to 5 m/s)
Temperature gradient w
N
< 2 K/min (at 5 m/s)
Switch-on delay during start-up
20 s
Operating temperature
Sensor probe: -20 ... +85 °C
Electronics:
-20 ... +70 °C
Storage temperature
-20 ... +85 °C
Humidity range
0 ... 95 % of rel. humidity (RH); none-condensing
Operating pressure
0
… 10 bar (overpressure)
Operating voltage U
B
24 V
DC
± 20 %
Current consumption
typ. < 40 mA (max. 70 mA)
5
Switching relay
30 V
Peak
/ 100 mA / 300 mW
Display LED
Green:
sensor status
Red:
switching status / sensor defective
Electrical connection
Non-detachable cable, pigtail
6
, 4 x 0.14 mm
2
, length
2 m, PVC (grey), Outer-Ø 3.8 mm
Maximum cable length
100 m
Protection type of housing
IP65 (with plug); IP52 (potentiometer open)
Protection type of probe tip
IP67
Protection class
III (SELV) or PELV (EN 50178)
Minimum immersion depth
58 mm
Sensor tube diameter
9 mm
Mounting length
100 / 200 / 350 / 500 mm
Materials
Housing: PBT (Ultradur B4300 G4)
Probe:
stainless steel 1.4571, PBT
Coating: Polyurethanderivat
5
Without signal current of switching output
6
With cable end sleeves