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Hot Keywords:Pressuresensor Pressure transmitter level sensor Temperature sensor
PT500-702
Model: PT500-702
Adopting imported pressure sensitive chip, micromachining technology, integrated structure design, impact resistance, fatigue resistance and high reliability;
Integral elastic material, no welding process, no cracking under pressure of 1000MPa, to ensure the safety of the product;
High precision, stable, digital calibration, adjustment, amplification integrated circuit;
It can replace the same type of high voltage products abroad;

Common keywords:
High pressure transmitter high pressure sensor
Ultrahigh pressure sensor ultrahigh pressure transmitter
Pressure transmitter of water cutter 500m pressure sensor
High pressure pump pressure transmitter hydraulic pressure sensor
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  • Product parameters
  • Specification parameter
  • Ordering considerations
  • Precautions for use
  • Common problem
  • Proposal

Chip:

Adopt imported voltage sensing chip, select the chip technology, with zero, full range compensation, temperature compensation;

Strain gauge core, high-strength elastic deformation pressure sensing material, equipped with temperature compensation, has the advantages of impact resistance and fatigue resistance;

Micromachining process, integrated structural design, integral elastic material, no welding process, 1000 MPa compression will not crack, to ensure the safety of the product;

Signal processing and output:

24 bit ADC sampling processing chip;

DSP digital signal conditioning algorithm;

Multipoint line temperature calibration;

Voltage and current overload protection;

Standard industrial signal output: 4-20mA (two-wire system), 0-20mA (three wire system), 0-5vdc, 0-10vdc, 0.5-4.5vdc (three wire system);

Digital communication signal output: rs485-rtu, ultra-low power rs485-rtu

Advanced 32bit microprocessor and 24bit ADC

The transmission protocol adopts the general MODBUS-RTU protocol

Support baud rate: 1200 ~ 57600bps, check bit: none, odd, even

It supports the user's secondary calibration, clearing, anti clearing, factory restoration and other operations

Supports 11 unit switches, floating point, integer, percentage, format output

The acquisition interval of 0-43200 seconds (12 hours) can be set, which can not only continuously acquire, but also meet the occasion of high-speed acquisition, and can trigger acquisition in a single time, minimizing power consumption


Structure:

Small structure, full seal welding structure, impact resistance, fatigue resistance, high reliability, a variety of process connection;

Process connection material, 304, four sealing methods are optional: taper seal, end face seal, arc face seal and spherical seal;

Electrical connection: din43650 Hersman standard electrical connector;

Supporting standard four core shielded cable;


Application:

Pressure measurement of large hydraulic machinery and hydraulic station;

Water cutter, ceramic wire cutter pressure measurement and control;

Hydraulic system pipeline and hydraulic equipment pressure measurement control;

Application fields:

  • Oil pressure system

  • Ceramic cutting

  • Water cutter equipment

  • High pressure pump

  • Water supply equipment

  • Hydraulic equipment

1、 Technical parameters
Measuring medium: liquid and gas (compatible with connecting materials of product process)
Pressure form: gauge pressure, absolute pressure
Range: 0 ～ 100MPa; 150MPa; 200MPa;
250 MPa；300 MPa；350 MPa；400 MPa；;
450 MPa；500 MPa；
Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
Non linear: ≤ 0.25% FS
Repeatability: ≤ 0.1% FS
Output signal: current type: 4-20mA two-wire system; 4-20mA / 0-20mA three wire system
Voltage type: 0-5vdc, 0-10vdc, 0.5-4.5vdc three wire system
Digital type: rs485-rtu, low power rs485-rtu
Power supply voltage: 24VDC (9-30vdc)
3.1-6.1vdc (low power rs485-rtu)
5VDC (0.5-4.5vdc output type)
Switch life: ≥ 1 million times
Insulation impedance: ≥ 1000m Ω / 100VDC
Load impedance: current output: ≤ 800 Ω; voltage output: ≥ 50K Ω
Medium temperature: - 20-80 ℃
Ambient temperature: - 20 ～ 70 ℃
Compensation temperature: 0 ～ 70 ℃
Response time: ≤ 10ms
Overload pressure: 150% FS
Stability: ≤± 0.15% FS / year
Vibration impact: ≤± 0.15% FS / year (mechanical vibration frequency 20Hz ～ 1000Hz)
Failure pressure: 3 times of range (range less than 350Mpa); 2 times of range (range greater than 400MPa)
Electrical connection: din43650 Hersman standard electrical connector
Protection grade: IP65
Connecting cable: four core shielded cable, standard length: 3M
Connection material: 304 / 316L
Process connection: m20x1.5, G1 / 2, user defined specification







Precautions for ordering PT500-702 products

1. Product range selection:
In order to achieve the best effect of product accuracy, life, stability and other functions, the range selection of the product is calculated by referring to the following formula:
Range = x (1.2-1.5) times of the maximum system pressure;
The actual measuring pressure range of the product should be 15% - 80% of the range;

2. Product power supply and output:
The selection of power supply range is determined according to the output specifications of the product:
Conventional 4-20mA / 0-20mA, 0-5V / 10V output, DC 12-30vdc power supply;
General rs485-rtu output, DC 12-30vdc power supply;
0.5-4.5vdc output, DC 5VDC;
Low power rs485-rtu output, DC 3.1-6.1vdc;
When output rs485-rtu, please understand the communication protocol first;

3. The user should understand the measurement medium characteristics of the product:
Medium specification, medium temperature, medium purity (whether containing impurities or particles, etc.);

4. Users should understand the installation environment and installation method of the product:
Indoor or outdoor installation;
Ambient temperature;
Required sealing level;
Vibration range of equipment;
Pressure seal: taper seal, face seal, arc seal, spherical seal;
Whether the installation space meets the overall dimension of the product;

Product power supply 24VDC (range: 9-30vdc);
It is strictly prohibited to use hard objects (such as screwdriver, finger, iron nail, etc.) to make the pressure core body under pressure measurement output;
The power and signal wires shall be correctly wired according to the specifications of the ordered products;
When the product is installed, the stressed part is "process connection hexagon wrench position", and the wrench specification corresponds to hexagon;
It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the tested system exceed the rated use range of the transmitter;
Pay attention to protect the outgoing cable of the transmitter. When the span is too large on site, it is recommended to use metal pipe for protection or overhead;
The product is installed in a ventilated, dry and non corrosive environment, and installed in the open with protective devices to avoid direct sunlight;
Red copper material is used for sealing parts of high-pressure products; for high-pressure products, attention shall be paid to protect the products during commissioning and use, so as to avoid damaging the surrounding personnel or equipment due to pressure leakage during commissioning or use;
Try to avoid direct access to user devices or electrical appliances that cause interference;
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