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PREMASGARD® 714x - Modbus(7148-Modbus LCD)

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.

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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]

Measuring range, pressure

– 500...+ 500 Pa

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

Accuracy, pressure

typisch ± 13 Pa verglichen zu kalibriertem Referenzgerät

Housing dimensions

126 x 90 x 50 mm (Tyr 2)

Long-term stability

± 1 %/ year

Hysteresis

0.3 % of final value

Measuring range pressure

±500 Pa

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)

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)

Protection type

IP 65 (according to EN 60 529) in the built-in state

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

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Catalogue page EN.pdf