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- Modbus | Wireless Modbus
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- EtherCAT P
- Accessory
Pressure + calculated values
Pressure sensor and measuring transducer for differential pressure and volume flow, with Modbus connection, with automatic zero-point calibration PREMASGARD® 714x - Modbus
Product group: WG02
Description
Pressure sensor and measuring transducer for differential pressure and volume flow, with Modbus connection, with automatic zero-point calibration
PREMASGARD® 714x - Modbus
Maintenance-free, microprocessor-controlled PREMASGARD® 714x - Modbus (series) with Modbus
connection, in an impact-resistant plastic housing with quick-locking screws, connection nozzles
for pressure hose (Ø 6 mm), with cable gland or M12 connector according to DIN EN 61076-2-101,
optionally with/without display, for measuring the differential pressure (max. ± 7000 Pa) in air.
International system of units SI (default) can be switched to Imperial (via Modbus). Incl. mounting
flange and connection set ASD-06 (2 m connecting hose, two pressure port nipples, screws).
The pressure sensor is applied to measure positive, negative or differential pressure in clean air and gaseous media. It is used in the clean room, medical and filter technology, ventilation and air conditioning ducts, spray booths, large-scale catering facilities, for filter monitoring and level measurement or for triggering frequency converters. A pressure sensor with piezoresistive measuring element guarantees exact measurement results. The following measured values can be accessed via the Modbus: Differential pressure, volume flow.
The pressure sensor is applied to measure positive, negative or differential pressure in clean air and gaseous media. It is used in the clean room, medical and filter technology, ventilation and air conditioning ducts, spray booths, large-scale catering facilities, for filter monitoring and level measurement or for triggering frequency converters. A pressure sensor with piezoresistive measuring element guarantees exact measurement results. The following measured values can be accessed via the Modbus: Differential pressure, volume flow.
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;
an environmental precision adjustment by an expert is possible.
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Power consumption
< 4.8 W/ 24 V DC typical; < 6.8 VA/ 24 V AC typical
Data points
Differential pressure [Pa],
volume flow [m3/h]
volume flow [m3/h]
Controlled medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Media temperature
–4...+122 °F (temperature-compensated +32...+122 °F)
Pressure connection
with metal connection nozzles for pressure hose Ø 0.24 in
Type of pressure
differential pressure
Zero point offset
± 10 % measuring range
Above- below-pressure
max. ± 201 inWC
Ambient temperature
-22...+158 °F
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
address range 0...247 selectable
Signal filtering
0 s / 1 s / 10 s
Electrical connection
AWG 24 - 16, via push-in terminal
Housing dimensions
4.96 x 3.54 x 1,97 in (Tyr 2)
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 0.4 in) 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-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 !
Long-term stability
± 1 % per year
Hysteresis
0.3 % of final value
Media contacting parts
Brass, Ni, Duroplast, Si, epoxy, RTV, BSG, UV silicone gel
Temperature drift values
± 0.1 %/ K
Linearity
< ± 1 % of final value
Humidity
0...95 % RH (without dew formation)
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529) in the built-in state
Units
switchable metric / imperial