High Static Pressure Differential Pressure Transmitter

• 

ZWA130A series high static pressure differential pressure transmitter is a new type of transmitter w…

I. Product Overview:

ZWA130A series high static pressure differential pressure transmitter is a new type of transmitter which imports advanced technology and equipment from abroad. The key raw materials, components and components are all imported. The whole machine has been rigorously assembled and tested. The product has the characteristics of advanced design principle, complete varieties and specifications, simple installation and use. Because the appearance of the model is fully integrated with the current domestic Zui popular, it has strong versatility and substitution ability. In order to adapt to the continuous improvement and development of domestic automation level, because the appearance of the model fully integrates the current domestic Zui as popular, it has strong versatility and substitution ability.

2. Fieldbus communication capability:

Fieldbus is a bidirectional digital communication system, an innovative technology for configuring instrumentation control system, and also a promising replacement product. It is used to replace the standard 4-20mA analog communication widely used in field instruments.

Two Fieldbus modes, FOUNDATION? Fieldbus low voltage mode and PROFIBUS PA equipment, are provided to achieve the collaboration between Yokogawa Motor and other suppliers. In software aspect, ZWA130 series uses two AI function blocks to calculate differential pressure and static pressure, thus realizing flexible instrument configuration.

3. Small lightweight design:

ZWA130A series of high static pressure differential pressure transmitters adopt ASIC amplifier design to make the package smaller, as well as the diaphragm box structure and flange miniaturization, the weight of this model has been reduced to half of the original model. ASIC design not only reduces the number of parts, but also improves the reliability of the amplifier.

4. Application occasions:

ZWA130A series of high hydrostatic differential pressure transmitters are used to measure the flow, liquid level, density and pressure difference of gases, liquids and vapors, and then convert them into current signal output of 4-20 mADC. ZWA130A can also communicate with each other through BRAIN or CENTUM CS/uXL or HART275, through which they can be set up and monitored.

V. Main characteristics:

1. High accuracy, good stability, two-wire system input (special four-wire system);

2. Solid components, plug-in printed circuit boards; small, light weight, strong anti-vibration;

3. Range, external zero point can be adjusted continuously, positive migration can reach 500%, negative migration can reach 600%.

4. Damping can be too adjustable and unidirectional overload protection has good characteristics.

5. No mechanical movable parts, less maintenance workload; a unified structure of the whole series, strong parts interchangeability;

6. The diaphragm material of contact medium can be selected; (316L, TAN, HAS-C, MONEL and other corrosion-resistant materials);

7. Explosion-proof structure, all-weather use; Intelligent HART Fieldbus protocol.

6. Technical parameters:

Performance Specifications: (Zero benchmark calibration range, reference conditions, silicone oil filling, 316L stainless steel isolation diaphragm.)

1. Reference accuracy:

(1) Digital and intelligent: +0.1% check full range.

(2) Simulated and linear: +0.2% calibration range.

2. Stability:

Number and Intelligence: 6 months, +0.1% URL.

(2) Simulated and linear: 6 months, +0.2% URL.

3. Environmental temperature effects:

Number and Intelligence: Zero Error: +0.2% URL/56 C, Total Error: +0.2% URL+0.18% Check Range) / 56 C.

(2) Simulation and linearity: Zero error: +0.5% URL/56 C, total error: +0.5% URL+0.5% check range) / 56 C.

4. Vibration effect: On any axis, the vibration effect at 200 Hz is +0.05% URL/g.

5. Power supply effect: less than +0.005% output range/volt.

6. Load effect: There is no load effect unless the supply voltage changes.

7. Electromagnetic Interference/Radio Frequency Interference (EMI/RFI): When the field intensity reaches 30V/M from 20 to 1000MHz, the output drift is less than (+0.1%).

8. Impact of installation location:

Under static pressure of 3 1027 kPa, it is + 0.2% URL. Zero error can be corrected online by zero adjustment. It can be corrected to <0.25% output reading/6895 kPa.