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Air flow monitor RHEASREG® KLGFVT-W LCD

Measured variables

Item no. 1701-4118-1401-001

EAN 4251325625362

Product group: WG01

Air flow monitor RHEASREG® KLGF / KLSW

Electronic duct air flow sensor RHEASGARD® KLGF with active 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 measuring transducer converts the measurement signal into a standard signal of 0 - 10 V. Electronic duct air flow sensor/monitor RHEASGARD® KLGFT (without display) and KLGFVT (with display) with active and switching output, housing made of impact-resistant plastic with quick-locking screws, with cable gland, to determine the flow velocity (0.1...20 m/s) and temperature (0...+50 °C). For device type KLGFVT, the calculated volume flow parameter can be retrieved as an alternative to the flow (configurable on the display). The measuring transducer automatically detects the required output type and converts the measurands into the required standard signal of 0 - 10 V or 4...20 mA (Automatic Output Switching).

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. By entering the cross-sectional area of the duct pipe (and the corresponding unit), a volume flow can be calculated and shown on the display. This is done on the display using UP/Down buttons and a confirmation button on the circuit board of the device (see operating instructions). Here, "30000" is the largest possible number that can be displayed (e.g. 30000 cm², corresponding to 3 m²) The max. cross-sectional area is 3 m² and the max. volume flow is therefore 216,000 m³/h (at 20 m/s), displayed as 3,600 m³/min. The output signal of 0 - 10 V or 4...20 mA also corresponds to the underlying measuring range of 0.1...20 m/s in the volume flow calculation.

Measuring range Volume flow

0...200.000 m³/h

Voltage supply

24 V AC/ DC (± 10 %)

Start bridging

60 s (can be activated via DIP switch)

Measuring range, temperature

0...+50 °C

Data points

Temperature, flow velocity, volume flow

Measuring accuracy

0.5 m/s + 3 % measured value

Warm up time

< 2 min

Response time

< 5 s

Output signal

linearized

Reproducibility

± 1.0 % final value

Current consumption

approx. 4 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)

Inserted length

220 mm

Electrical connection

0.2 - 1.5 mm², via push-in terminal

Output

automatically 0 -10 V/ 4...20 mA (via Automatic Output Switching - the device recognizes the required output type and automatically switches to U or I output), Changeover contact (24 V)

Screwed socket

Sensor

Calorimetric, temperature compensated, sensor breakage protection, with manual zero-point calibration (via button)

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

Dimensions

126 x 90 x 50 mm (Tyr 2)

Long-term stability

± 0.5 % final value per year

Humidity

< 98% RH pollutant-free, non-precipitating air

Measuring ranges

0,1...20 m/s
0...200.000 m³/h

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), with torsion protection, Ø 20mm, NL = 220 mm, vmax = 30 m/s (air), stainless steel V2A (1.4301), Ø 16 mm available upon request as an option

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)

Housing

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 !

Standards

CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3

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)

Function

Display-supported input of the cross-sectional area of the duct pipe for the display and calculation of the volume flow.

Catalogue page EN

Operating instructions

CE - Declaration of Conformity

UKCA declaration of conformity