Digital pressure gauge ZET 7012-I VER.3

electronicexplosion-proof

Integrated primary transducer Оpen membrane Explosion-proof version RS-485 digital output 4-20 mA output version available 4-digit indicator Digital gauge pressure ZET 7012-I VER.3 (open membrane) is used for fast and simple overpressure measurements and measured values data transfer in digital format via RS-485 or 4-20 mA interface. ZET 7012-I VER3 digital gauge pressure meter is intended for integration into various technological processes automated control systems. Open membrane type enables sensors operation in viscous, pasty and rapidly polymerizing environments. ZET 7012-I VER.3 digital gauge pressure meter consists of primary transducer and integrated measuring module. The primary transducer converts the pressure value to analog signal. The measuring unit digitizes the signal from the converter and transmits the pressure value in a digital form via RS-485 interface by means of Modbus protocol or via data transfer interface “Current loop” (4-20 mA). The membrane of the primary transducer is made of a silicon plate. The strain resistor circuit (bridge connection) is implemented on the basis of the “silicon on sapphire” technology (SOS). This allows to perform inertia-free dynamic measurements in the range up to 1,000 Hz. In contrast to metal membranes with glued bridge strain resistors, SOS membranes enable registering pressure change at the level of 0.00001 from the upper range limit. Sensitivity of the electronic amplifier is 15 nV reduced to the input. The pressure meters are attached to the controlled object while the interface modules enabling data transfer are placed inside of electrical cabinets.