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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
with Changeover contact
Output signal
linearized
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)
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
Electrical connection
0.2 - 1.5 mm², via push-in terminal
Sensor
calorimetric, temperature compensated, sensor breakage protection, with manual zero point calibration (via push button)
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)*
Protective tube
PLEUROFORM, material polyamide (PA6), twist-proof,
Ø 20 mm, NL = 220 mm, vmax = 20 m/s (air),
optionally on request made of stainless steel V2A (1.4301), Ø 16 mm
Ø 20 mm, NL = 220 mm, vmax = 20 m/s (air),
optionally on request made of stainless steel V2A (1.4301), Ø 16 mm
Inserted length
220 mm
Reproducibility
± 1,0 % EW
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!
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)