Air flow monitor KLGF-Modbus / KLGFVT-Modbus
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Air flow monitor RHEASGARD® KLGF-Modbus / KLGFVT-Modbus

Product group: WG01

In Stock

Usually ships in 1 to 3 days
300,76 €
357,90 € incl. VAT + shipping

Description

Air flow monitor RHEASREG® KLGF / KLSW
Calibratable duct air flow sensor RHEASGARD® KLGF - Modbus with Modbus connector, housing made of impact-resistant plastic with quick-locking screws, with cable gland (optional M12-connector as per DIN EN 61076-2-101) optionally with / without display, to determine the flow velocity (0.1...20 m/s). Calibratable duct air flow sensor RHEASGARD® KLGFVT - Modbus with Modbus connector, housing made of impact-resistant plastic with quick-locking screws, with cable gland (optional M12-connector as per DIN EN 61076-2-101) optionally with/ without display, to determine the flow velocity (0.1...20 m/s) and temperature (0...+50 °C). The following parameters can be retrieved from the Modbus: flow velocity, volume flow (calculated) and temperature.

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. Innovative Modbus sensor with galvanically separated RS485 Modbus interface, selectable bus termination resistance, DIP switch for setting the bus parameters and bus address in current-free state, internal LEDs for telegram status display, two separate push-in terminals and large three-line display (illuminated; with customised programming in the 7-segment and dot-matrix range). The sensor is factory-calibrated.

Technical details

Voltage supply
24 V AC/ DC (± 10 %)
Start bridging
0...120 s (can be set via Modbus)
Measuring accuracy
0.5 m/s + 3 % measured value
Warm up time
< 2 min
Response time
< 5 s
Sensor
Calorimetric, temperature compensated, sensor breakage protection, with manual zero-point calibration (via button)
Reproducibility
± 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
Medium
pollutant-free, non-precipitating air
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
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
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)
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 !
Screwed socket
-
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
Humidity
< 98% RH pollutant-free, non-precipitating 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)*
Standards
CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
Optional
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)