The Haikou card water meter manufacturers wholesale and retail 
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 Sensitive components using diffusion or ion implantation process to form resistor and connected into a Wheatstone bridge, the formation of a pressure sensitive diaphragm micro-machining technology in the electric bridge. When the pressure on the diaphragm, the resistance value changes and produce a linear output signal is proportional to the applied pressure. Wheatstone bridge together with the DC power supply will produce a DC voltage signal output. After two conversion lines, two-wire system 4 ~ 20MA output. 
 Features: 
 ◆ good stability, full-scale, long-term stability of zero up to 0.2% FS / year. Compensate for temperature range of 0 ~ 70 ℃, the temperature drift of less than 0.2% FS in the entire operating temperature range of less than 0.5% FS. 
 ◆ reverse protection, current limiting protection circuit, the positive and negative poles when installing anti-will not damage the transmitter, abnormal transmitter will automatically limit the flow in less than 35MA. 
 ◆ solid-state construction, no moving parts, high reliability, long life 
 From the pressure to water, oil can be highly accurate measurements, free from the influence of the quality of the measured medium size. 
 ◆ install, simple structure, economical and durable. ┣ ▇ ▇ ▇ ═ - Haikou card meter ♂ Haikou card water meter factory the ♂ Haikou water card meter ♂ Haikou card card meter ♂ 
 Main technical parameters: 
 Measuring range:-100KPa ~~ 0-40MPa 
 Maximum Overload: 2 times the standard range 
 Form of pressure: gauge pressure, micro-differential pressure 
 Accuracy class: 0.25% FS??? 0.5% FS 
 Power supply voltage: 24VDC 
 Load resistance: ≤ 500Ω 
 Measurement medium: steam pressure, or gas, liquid 
 Long-term stability: ± 0.2%? FS / year 
 Relative humidity: 0 ~ 95% 
 Compensate for temperature: 0 to 70 ℃ 
 Operating Temperature: -10 ~ 70 ℃ (up to do 500 ℃ / to be ordered) 
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 Structural features: 
 Housing: all stainless steel body 
 The main structure of materials: 31618Cr-12Ni-2.5Mo 
 Pressure connection: M20 × 1.5 or user custom 
 Weight: a common type of 1kg, with a header type 1.2kg 
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 Debugging method: 
 Open HSM connector, unscrew the stainless steel tube, you can see the zero and full-range resistor, external standard power supply and ammeter (0.2 pole above), you can adjust the following steps: 
 In the case of the transmitter is not pressurized, adjust the zero resistance, so that the output current of 4mA; 
 ◆ transmitter pressurized to full scale, adjust the full range resistor, so that the output current of 20mA; 
 ◆ two or three times repeated the above steps until the signal is normal; 
 ◆ has been adjusted, tighten the protective cover. 
 ◆ All delivery products with a manual and certification, product number, technical parameters, the date of manufacture, please carefully checked to avoid the wrong. 
 ◆ can not squeeze the transmitter diaphragm with a hard object, so as not to damage the transmitter. 
 ◆ should be installed according to the product connection and thread type, check whether the site interface and product interface, the connection should be slow tighten the torque can not be directly added to the transmitter housing, can only be added to the pressure port The six-party on. 
 ◆ connected power supply should be in strict accordance with the wiring of my company to connect. 
 ◆ transmitter overload pressure should not exceed 200% of the range. 
 ◆ abnormal use, turn off the power to stop using checks or direct contact to our technical department. ┣ ▇ ▇ ▇ ═ - Haikou card meter ♂ Haikou card water meter factory the ♂ Haikou water card meter ♂ Haikou card card meter ♂ 
 ◆ transport, storage should be to restore the original packaging and stored in a cool, dry, ventilated warehouse. 
 ◆ replacement for one year. Phone Tang / / qq.