Membrane pressure sensor ZET 7012-I VER.2

4-20 mAdigitalexplosion-proof

Integrated primary transducer Open membrane Explosion-proof version RS-485 digital output 4-20 mA output version available ZET 7012-I VER.2 digital gauge pressure (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 VER.2 digital gauge pressure (open membrane) is intended for integration into various technological processes automated control systems. Open membrane type enables sensors operation in viscous, pasty and rapidly polymerizing environments. Digital gauge pressure ZET 7012-I-VER.2 (open membrane) 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 up to 1,000 Hz. In contrast to metal membranes with glued bridge strain resistors, SOS membranes allow to register pressure change at the level of 0.00001 from the upper scale of the range. Sensitivity of the electronic amplifier is 15 nV reduced to the input.