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PREMASGARD 7147-ModbusMaintenance-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. 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.
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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 – 7000...+ 7000 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 typical ± 105 Pa compared to a calibrated reference device Housing dimensions 126 x 90 x 50 mm (Tyr 2) Long-term stability ± 1 %/ year Hysteresis 0.3 % of final value Measuring range pressure ±7000 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 |