Ordinary pressure transmitter

Transmitter Series>>ZW1088Ordinary pen holder pressure transmitter：

1、 Instrument Overview:
Ordinary pressure transmitterThe diffusion silicon pressure core is used as the sensitive element, and the built-in processing circuit converts the sensor millivolt signal into standard voltage and current signals for output. It can be directly connected to computers, control instruments, display instruments, etc. By selecting high stability and reliability piezoresistive pressure sensors and high-performance transmitter circuits, the overall performance is stable and reliable, and long-distance signal transmission can be achieved. Adopting an integrated all stainless steel structure, it has undergone multiple stainless steel welding processes to achieve an all solid state design. It is easy to install and has excellent vibration and impact resistance, making it suitable for long-term use in harsh environments.
2、 Measurement principle:
Ordinary pressure transmitterResistors are formed using diffusion or ion implantation processes and connected to form a Wheatstone bridge. Pressure sensitive membranes are formed under the bridge using micro machining techniques. When pressure is applied to the diaphragm, the resistance value changes and a linearized output signal proportional to the applied pressure is generated. We add a DC power supply to the Wheatstone bridge, which produces an output of a DC voltage signal. After a secondary conversion circuit, achieve a two-wire system with 4-20mA output.
3、 Applicable occasions:
The components and parts of the pressure transmitter are sourced from imported high-quality diffusion silicon and ceramic pressure sensors as sensitive components. They use integrated modules and undergo fine temperature drift, zero point, and nonlinear compensation to achieve accurate measurement and transmission of pressure changes in liquids, gases, steam, and other media.
4、 Performance characteristics:
1. Good stability, with a long-term stability of 0.2% FS/year at full and zero positions. Within the compensation temperature range of 0-70 ℃, the temperature drift is less than 0.2% FS, and within the entire allowable operating temperature range, it is less than 0.5% FS.
2. Equipped with reverse protection and current limiting protection circuits, the transmitter will not be damaged if the positive and negative poles are reversed during installation. In case of abnormalities, the transmitter will automatically limit the current to within 35MA.
3. Solid state structure, no movable parts, high reliability, long service life.
4. From wind pressure to water and oil, high-precision measurements can be made without being affected by the mass of the measured medium.
5. Easy to install, simple structure, economical and durable.
5、 Technical indicators:
Measurement range: 0-10KPa to 0-40MPa;
Maximum overload: twice the standard range;
Pressure forms: gauge pressure, micro differential pressure;
Accuracy level: 0.5% F · S;
Power supply voltage: 24VDC;
Load resistance: ≤ 500 Ω;
Measurement medium: vapor pressure or gas, liquid;
Long term stability: ± 0.2% F · S/year;
Relative humidity of the environment: 0-95%;
Compensation temperature: 0-70 ℃;
Working temperature: -10~70 ℃.
Structural features:
Shell: All stainless steel integrated;
Main structural material: 31618Cr-12Ni-2.5Mo;
Pressure interface: M20 × 1.5;
Self weight: 1kg for regular type, 1.2kg for type with watch head.
6、 Debugging method:
Open the HSM connector, unscrew the stainless steel tube, and you can see the zeroing and full range resistors. Connect an external standard power supply and ammeter (0.2 poles or more) to adjust them. The steps are as follows:
When the transmitter is not pressurized, adjust the zero point resistor to output a current of 4mA,
Pressurize the transmitter to full range, adjust the full range resistor to output a current of 20mA,
Repeat the above steps two or three times until the signal is normal.
4. After adjustment, tighten the protective cover.
7、 Attention:
1. All supplied products come with user manuals and certificates of conformity, which include product numbers, technical parameters, manufacturing dates, etc. Please carefully check to avoid using them incorrectly.
2. Do not directly squeeze the transmitter diaphragm with hard objects to avoid damaging the transmitter.
3. During installation, the on-site interface should be checked for compatibility with the product interface based on the product connection method and thread type. The connection should be tightened slowly, and torque should not be directly applied to the transmitter housing, but only to the six sides of the pressure interface.
4. When connecting the power supply, strictly follow our company's wiring instructions for connection.
5. The overload pressure of the edge feeder should not exceed 200% of the measuring range.
6. If any abnormalities are found during use, the power should be turned off, the use should be stopped, and inspection should be carried out, or directly reported to our company's technical department.
7. During transportation and storage, the original packaging should be restored and stored in a cool, dry, and ventilated warehouse.
8. Exchanging for one year.
8Selection List:

Install accessories, install brackets... G
Explosion proof cable sealing sleeve
External thread M20 × 1.5...... R
The user selects attachments, please use parentheses after the selection code
Indicate the code of the required attachment
For example:
ZW1088 □□□□□□□□
Please specify the name of the tested medium, working pressure, medium temperature, measurement range, etc. when placing an order. If you have any questions, please call our technical team or.
After-sales service
1. The instrument series products sold by Zhongwei ensure the sale of products and spare parts at the same price within two years, and provide corresponding free of charge according to the requirements of the demand.
2. If there are any quality problems with the products provided by our company within one year (excluding vulnerable parts or accessories), we will be responsible for free repairs and provide free skill training for the employees of the demand side.
3. Due to quality issues with the products provided by our company, after verification by our technical department, we will dispatch professional technicians to the site to handle the problem until customer satisfaction is achieved.
4. Outside the warranty period, the product will be returned to the company for repair or sent to the user for repair.
5. Join hands with Zhongwei Measurement and Control to create a better future! Welcome to your visit!