UH501 series compact pressure transmitter

1、 UH501 series compact pressure transmitter
Characteristics
*High precision level 0.5 * measurement range 0-60MPa
*High stability 0.2%/year * two-wire 4-20mA output signal
*Excellent corrosion resistance, high performance price ratio, vibration resistance, and resistance to radio frequency electromagnetic interference
*Anti overload, anti impact, anti lightning strike

2、 Overview
The UH501 series pressure transmitter is a high-performance and cost-effective industrial universal pressure transmitter assembled with pressure resistance pressure sensors as sensitive components. It has the characteristics of stable and reliable performance, high corrosion resistance, and sturdy and compact structure. It has a wide range of applications in petrochemical, power station, gas, water treatment, food processing, and all other industrial occasions that require high pressure measurement, and enjoys a high reputation in the industry.  
The core component of the UH501 series transmitter is the isolated piezoresistive sensor assembly. The sensitive element of this assembly utilizes the piezoresistive effect of single crystal silicon to diffuse an active four arm resistance strain bridge on the silicon wafer. The measured pressure is transmitted to the sensitive element through an isolation diaphragm sealed by an electron beam and filled with silicon oil. Due to the piezoresistive effect, the strain bridge loses its transverse direction, and the sensitive element outputs an electrical signal that changes linearly with the measured pressure. After temperature compensation, it is output to an electronic amplifier, which amplifies it and outputs a standard 4-20mA two-wire signal after zero and full adjustment.  
The electronic amplifier is designed with reverse diodes, through type capacitors, and transient voltage suppression diodes to achieve high-performance reverse protection, resistance to radio frequency, electromagnetic interference, and overvoltage protection. The transmitter housing is made of low copper aluminum alloy, and the part in contact with the process medium is made of 316 material.
3、 Application scenarios
The UH501 series transmitter is widely used in industrial applications such as petrochemicals, power plants, chemicals, and food processing.  
*Process Control * Chemicals and Chemical Industry
*Structural equipment and automatic industrial pneumatic and press machines
*Machine equipment and automatic devices * Loading and braking devices
*Hydraulic and pneumatic equipment * service valves and transmissions

4、 Main technical indicators
Measurement range: 0-60MPa
Output signal: 2-wire system 4-20mA
Overpressure pressure: When the rated pressure overload value is within the following range, the working performance is not affected
0-35kPa to 0-20MPa is 3 times the rated pressure (Max)
0-35kPa is twice the rated pressure (Max)
Power supply: standard 24VDC
When the load resistance meets the negative pressure curve, it can operate at 20-36V
Precision grade: 0.2 grade
Non linear: ≤± 0.2% FS; ≤± 0.5% FS
Stability: Long term stability 0.2% FS/year
Temperature effect: Full range temperature coefficient ± 0.3% (range code 00 doubled)
Full range hysteresis ± 0.3% (range code 00 doubled)
Load impact: ≤ 5 × 10-4/100 ships
Installation position influence: transmitters with a pressure less than 200kPa may experience slight changes in the zero position during installation, which can be eliminated by adjusting the zero potentiometer.  
Anti RF interference: 3v/m RF interference does not cause a range change of more than 0.1% between 1MHZ and 1GHz
External magnetic field strength: can be used in 400A/m situations
Vibration impact: It can be used in environments with vibration frequencies of 10-60HZ, displacement amplitude of 0.07mm, vibration frequencies of 60-150HZ, and acceleration amplitude of 9.8m/s2.  
Pressure interface connection: External threads include M20 × 1.5, 1/2-14NPT, G1/2 (can be customized according to user requirements)
Internal threads have 1/4NPT and G1/4
Weight: 0.8kg

5、 Installation and wiring
The UH501 series pressure transmitter can be directly installed on the appropriate interface thread, and the installation position has little effect on the measurement. Installation torque: 50Nm.

The general system connection is shown in the following figure: