- New
- Sale
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality
- Flow
- Modbus | Wireless Modbus
- Room controller
- EtherCAT P
- Accessory
Description
Air flow monitor
RHEASREG® PLGF-Modbus
Calibratable pendulum airflow sensor RHEASGARD® PLGF - 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, with external duct probe incl. mounting flange, to determine the flow velocity (0.3…65 ft/s). Calibratable pendulum airflow sensor RHEASGARD® PLGFVT - Modbus with Modbus connection, 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, with external duct probe incl. mounting flange, to determine the flow velocity (0.3…65 ft/s) and temperature (+32...+122 °F). The following parameters can be queried by 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 the current-free state, internal LEDs for telegram status indication, two separate push-in terminals and large three-line display (illuminated). The sensor is factory-calibrated.
Technical details
Voltage supply
24 V AC/ DC (± 10 %)
Data points
flow velocity
Start bridging
0...120 s adjustable by potentiometer
Measuring accuracy
1.64 ft/s + 3 % MW
Warm up time
< 2 min
Response time
< 5 s
Output
Modbus RTU
Sensor
calorimetric, temperature compensated, sensor breakage protection, with manual zero point calibration (via push button)
Current consumption
approx. 4 VA
Measuring range
0.3...65 ft/s
Media temperature
+32…+158 °F
Ambient temperature
storage –4...+ 122 °F
operation +32...+ 122 °F
operation +32...+ 122 °F
Medium
pollutant-free, non-precipitating air
Bus protocol
Modbus (RTU mode),
Address range 0...247 adjustable
Address range 0...247 adjustable
Signal filtering
0…30 values
Process connection
by means of mounting flange with seal
(included in the scope of delivery)
Protective tube
Polyamide (PA6) material, white colour (blue sensor holder), with torsion protection,
Ø 0.47 in , EL = approx. 0.8–6.1 in, vmax = 98 ft/s (air)
Electrical connection
AWG 24 - 16, via push-in terminal
Cable connection
Cable gland made of plastic (M 16 x 1.5; with strain relief,
replaceable, max. inner diameter 0.4 in),
optionally with M12 connector as per DIN EN 61076-2-101
replaceable, max. inner diameter 0.4 in),
optionally with M12 connector as per DIN EN 61076-2-101
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 !
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 !
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 0.4 in
max. inner diameter 0.4 in
Dimensions
4.96 x 3.54 x 1,97 in (Tyr 2)
sensor cable
PVC LiYY, 5-wire, KL = approx. 7.9 ft
Installation
On-wall housing with external duct probe – observe flow direction!
Long-term stability
± 0.5 % of final value per year
Permissible air humidity
< 98 % RH, non-precipitating air free of harmful substances
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
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. 2.8 x 1.6 in (W x H),
to indicate the flow velocity, volume flow and temperature (cyclical)
or a selectable parameter (static)
to indicate the flow velocity, volume flow and temperature (cyclical)
or a selectable parameter (static)
Reproducibility
± 1,0 % EW