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Electronic RHEASGARD® KLGF duct air flow transmitter with active output, in an impact resistant plastic housing, optionally with/without display, for determining flow velocity in m/s. The measuring transducer converts the measured value into a standard signal of 0-10 V.

ElectronicRHEASREG® KLSW duct air flow monitor with switching output (one-step or two-step relay), in a plastic housing, for determining flow velocity in m/s. Fine adjustment of the measuring range end value by the user is possible with the help of a potentiometer.
The flow sensor devices are suitable for monitoring or controlling airflow in ducts, at ventilators and dampers, for flow-dependent monitoring of humidifiers and electric heating registers according to DIN 57100, part 420, or for use in connection with DDC systems.

No price
  1. Yes
  2. No
Voltage supply
24 V AC/ DC (± 10 %)
Start bridging
0...120 s (can be set via Modbus)
Measuring range, temperature
0...+50 °C
Measuring accuracy
0.5 m/s + 3 % measured value
Warm up time
< 2 min
Response time
< 60 s
Calorimetric, temperature compensated, sensor breakage protection, with manual zero-point calibration (via button)
± 1.0 % final value
Current consumption
approx. 4 VA
Measuring range
0,1...20 m/s
Ambient temperature
storage –20...+ 50 °C
operation 0...+ 50 °C
pollutant-free, non-precipitating air
Process connection
by mounting flange
(included in the scope of delivery)
Max. sensor cable length
50 m, avoid laying parallel with mains voltage-carrying lines,
or use shielded cables, minimum cross section 1.5 mm2
per conductor, apply cable screen one-sided
Protective tube
PLEUROFORMTM, material polyamide (PA6), with torsion protection, Ø 20mm, NL = 221 mm, vmax = 30 m/s (air), stainless steel V2A (1.4301), Ø 16 mm available upon request as an option
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)
plastic, UV-stabilised,
material polyamide, 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 !
Housing dimensions
126 x 90 x 50 mm (Tyr 2)
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
Long-term stability
± 0.5 % final value per year
< 98% r.H. pollutant-free, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
Display with illumination, three-line, cutout approx. 70 x 40 mm (W x H), to display the flow velocity, volume flow and temperature (cyclical) or a selectable parameter (static)

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    • 19836508612
    • 19836508612
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