Oppermann Regelgeräte SL 520 1.3A Manual

Airflow monitor SL 520 1.3A (analog output)
Product description / function
HVAC technology employs airflow monitors to monitor e.g.
electrical air heaters. The functionality of HVAC systems can
even be monitored when monitoring is not possible with elec-
tronic belt monitors, e.g. on direct-drive blowers. This is a cost-
effective alternative to pressure boxes or wind vane monitors.
The device operates based on calorimetric principles. The ana-
lysis electronics and the LEDs are integrated into the cylindrical,
smooth plastic housing. The airflow monitor records and con-
verts the flow velocity into an analog voltage signal. The sensor
is permanently calibrated by the factory and is not adjustable.
Technical Data
Power supply:
24 V DC ± 10 %, < 35 mA
Sensor range: 2 – 20 m/s
(output Ua = 1 – 10 V,
non-linear – see chart)
Fault thresholds:
± 0.7 m/s plus approx. ± 7 % of the
measured value
Medium temperature:
-10 – +50°C
Maximum rated
temperature gradient
of the medium: 1 K/min
Pressure rating:
1 bar
Visual function
display: LED
Startup & operation:
green LED on
Ambient conditions: -10 – +50 °C, max. 90 % relative
humidity
Startup time: 90 s (output = xx V)
Protection type:
IP 65
Electrical connection: PUR cable 2 m, 4 x 0.5 mm
Output:
0 – 10 V analog
U a [V]
10
9
8
7
6
5
4
3
2
1
2 4 6 8
Dimensions: 142 x 23 mm Ø (L x D)
Probe depth:
min. 34 mm
max. 115 mm
Sensors PG1 | Data sheet No. 11102 | Version 08-2019 | 1 | 2
2
10 12 14 16 18 20
v [m/s]