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Pressure + calculated values
PREMASGARD® 714x - Modbus

Pressure sensor and measuring transducer for differential pressure and volume flow, with Modbus connection, with automatic zero-point calibration PREMASGARD® 714x - Modbus

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387,72 €
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Product group: WG02
Pressure sensor and measuring transducer for differential pressure and volume flow, with Modbus connection, with automatic zero-point calibration PREMASGARD® 714x - Modbus
The maintenance-free, microprocessor-controlled pressure transmitters of the PREMASGARD® 714x - Modbus series with Modbus connection, impact resistant plastic housing, optionally with/without display, with cable gland or M12 plug-in connector according to DIN EN 61076-2-101 serve to measure positive, negative or differential pressure in clean air and gaseous media. They are supplied incl. a ASD-06 connection kit (2m connecting hose, two pressure port nipples, screws) and have been developed for use in cleanroom, medical and filter engineering, in ventilation and air conditioning ducts, in spray booths and large-scale catering facilities as well as in filter monitoring and level measuring or frequency converter triggering. A pressure sensor with piezoresistive measuring element guarantees precise measuring results. The following measured values can be accessed via the Modbus: Differential pressure [Pa], volume flow [m3/h].
Innovative Modbus sensor with galvanically separated RS485 interface, selectable bus termination resistance, DIP switches for setting the bus parametres and bus address in current-free state, LEDs for telegram status display, two separate push-in terminals and a large back-lit three-line display with customised programming in the 7-segment and dot-matrix ranges. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
Voltage supply
24 V AC (± 20 %) and
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]
Controlled medium
clean air and
non-aggressive, non-combustible gases
Media temperature
–20...+50 °C (temperature-compensated 0...+50 °C)
Pressure connection
with metal connection nozzles for pressure hose Ø 6 mm
Type of pressure
differential pressure
Zero point offset
± 10 % measuring range
Above- below-pressure
máx. ± 50 kPa
Ambient temperature
–30...+70 °C
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
Signal filtering
0 s / 1 s / 10 s
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 !
Housing dimensions
126 x 90 x 50 mm (Tyr 2)
Long-term stability
± 1 %/ 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 %/ °C
Linearity
< ± 1 % of final value
Humidity
0...95 % r. H. (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
Standards