QSYEJA Capacitive Smart Pressure Transmitter is a kind of High Precision Capacitive Differential Pressure Transmitter which meets the demands of steam pressure detection. Based on the traditional capacitive transmitter, HART Protocol and other functions are added by adopting special digital microprocessing chip. Manual Operator 268, Manual Operator 275 and hosts using HART Protocol can realize both-way communication (reading \ writing data and diagnosing fault) in control room or any place where transmitters are located or control circuits are made. It is mainly used to measuring liquid level and pressure on site which has the advantages of large resistance to overloading, strong anti-field interference ability, small zero shift and easy PV reset on site. Characteristics and Shape
1.High precision: ±0.075%. It can work 5 years without adjustment 2.The effects of temperature and static pressure can be negligible 3.The rotary switch has the function of PV reset (zero adjustment). 4.Clockwise increase and anti-clockwise decrease. The minimum adjustment is 1μA. 5.The HART communication interface is available. 6.It’s small and light. The weight of standard model is 3.9Kg. The head can rotate arbitrarily. 7.It can bear unidirectional over-pressure. Influence quantity is between -0.03% and +0.03% after 100,000 times of unidirectional over-pressure experiments. Technical Data | Type | QSYEJA Capacitive Smart Pressure Transmitter QSY3051 Capacitive Smart Pressure Transmitter | Measuring Range | ±7.5kPa,±40kPa,±200kPa,±700kPa, ±2100kPa,±7000kPa,±20MPa,±42MPa | Operating Environment | Operating Temperature from -25℃ to 80℃ without display Operating Temperature from -5℃ to 50℃ with display, no condensation in environment of 95% humidity | Precision | Better than ±0.1%FS | Display | 3-bit half LCD (modes with display) | Annual Stability | Better than ±0.1%FS | Storage Temperature | -50℃~120℃ | Output | 4~20mA,Superposition of digital HART signal | Supply Voltage | 12~36V DC | Damping Time | Continuously adjustable in 0.2-1.5S | Start-up Time | 2S without preheating | Application | Measuring liquid level and pressure on site |
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