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Description
Air flow monitor
RHEASREG® KLGF / KLSW
Electronic duct airflow monitor RHEASREG® KLSW with switching output, housing made of impact-resistant plastic with quick-locking screws, with cable gland, with/without display, to determine the flow velocity (0.1...20 m/s).
The flow sensors are suitable for monitoring or controlling airflows in ducts, at fans and dampers, for flow-dependent monitoring of humidifiers and electric heating registers according to DIN 57100, Sect. 420, or for use in connection with DDC systems.
Technical details
Voltage supply
24 V AC/ DC (± 10 %)
Data points
flow velocity
Start bridging
60 s (can be activated via DIP switch)
Measuring accuracy
0,5 m/s + 3 % MW
Warm up time
< 2 min
Response time
< 5 s
Output
changeover contact 24 V (max. 5 A, cos = 1.0), switching hysteresis
2 % final value, threshold can be adjusted via potentiometer
2 % final value, threshold can be adjusted via potentiometer
Output
with Changeover contact
Output signal
linearized
Sensor
calorimetric, temperature compensated, sensor breakage protection, with manual zero point calibration (via push button)
Current consumption
approx. 3 VA
Measuring range
0,1...20 m/s
Media temperature
0...+70 °C
Ambient temperature
Storage -20...+50°C; Operation 0...+50°C
Medium
pollutant-free, non-precipitating air
Process connection
by mounting flange
(included in the scope of delivery)
(included in the scope of delivery)
Electrical connection
0.2 - 1.5 mm², via push-in terminal
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 10.4 mm) or
M12 connector according to DIN EN 61076-2-101 (optional on request)
M12 connector according to DIN EN 61076-2-101 (optional on request)
Housing
plastic, UV-resistant, polyamide material, 30% glass-globe reinforced,
with quick-locking screws(slotted/ Phillips head combination),
colour traffic white (similar to RAL 9016), housing cover for display is transparent!
with quick-locking screws(slotted/ Phillips head combination),
colour traffic white (similar to RAL 9016), housing cover for display is transparent!
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
max. inner diameter 10.4 mm
Dimensions
126 x 90 x 50 mm (Tyr 2)
Long-term stability
± 0.5 % final value per year
Humidity
<98% r.h., non-condensing, pollutant-free air
Protection class
III (according to EN 60 730)
Protection type
IP65; Sensors IP 20
Protection type (sensor)
IP20
Protection type housing
IP 65 (according to EN 60 529)*
Display
Optional:
Display with illumination, three lines,
cut-out approx. 70 x 40 mm (W x H),
for display of flow velocity (KLSW-W24, KLGF)
Display with illumination, three lines,
cut-out approx. 70 x 40 mm (W x H),
for display of flow velocity (KLSW-W24, KLGF)
Reproducibility
± 1,0 % EW