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Hot Keywords:Pressuresensor Pressure transmitter level sensor Temperature sensor
PT500-2088T
Model: PT500-2088T
Inlet pressure core body;
Small range chip: oil filled silicon chip;
Large range chip: piezoresistive thick film chip;
32 bit microprocessor and 24 bit ADC high precision, stable, digital amplifier circuit;
Zero point, fullness, temperature compensation and linear compensation;
Modbus rs485-rtu digital output / low power rs485-rtu digital output;
Industrial grade 2088 cast aluminum alloy explosion-proof shell;

Common keywords:
RS485 pressure transmitter digital pressure sensor
Modbus pressure transmitter 485-rtu pressure sensor
Industrial digital pressure transmitter intelligent digital pressure transmitter
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  • Product parameters
  • Specification parameter
  • Ordering considerations
  • Precautions for use
  • Common problem
  • Proposal


Chip:
Inlet pressure core body;
Small range chip: oil filled silicon chip;
Large range chip: piezoresistive thick film chip;
Zero point, fullness, temperature compensation and linear compensation;
More than 1 million times of service life;
Signal processing and output:
32 bit microprocessor and 24 bit ADC;
DSP digital signal conditioning algorithm;
Multipoint linear temperature calibration;
Voltage and current overload protection;
Two kinds of low power consumption of RS485 digital output mode are provided;
Low power consumption: standby current is less than 50ua, acquisition current is less than 2mA;
The acquisition interval of 0 ~ 43200 seconds (12 hours) can be set, which can not only continuously collect data, but also meet the needs of high-speed acquisition;
It can also trigger acquisition once to minimize power consumption;
Industrial and design, suitable for DCS system, configuration software, PLC system;
Structure:
Thick film structure: deep argon arc welding, connecting elastic material and process joint, high strength, impact resistance and fatigue resistance;
PU film structure: laser welding, connecting elastic material and process joint, transmitting pressure with silicone oil medium, fast response, fatigue resistance, 
small range;
Industrial grade 2088 cast aluminum alloy explosion-proof shell with reliable strength;
The overall structure is compact, and the process connection mode is diversified (m20x1.5, G1 / 2, ZG1 / 2, 1 / 2NPT (thread diameter ≥ 17mm) DN50, etc.);
Process connection material: 304 or 316;
Application:
Measurement and monitoring of oil pressure, water pressure and air pressure;
Pressure measurement of equipment in industrial / power / Petroleum / automation fields

Application fields:

  • Intelligent fire control

  • Steam supply system

  • Oil pressure system

  • Metallurgical equipment

  • Petroleum Pipeline

  • Hydraulic equipment

Technical parameters
Pressure form: gauge pressure, absolute pressure
Range: 0 ～ 0.6, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50, 60, 100 (MPA);
       0～10、20、30、50、100、150、200、300、400、500、600（KPa）；
       -100KPa～10KPa～40MPa；
       ±10KPa～±100KPa；
Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
Non linear: ≤ 0.25% FS
Repeatability: ≤ 0.1% FS
Output signal: 
      Modbus rs485-rtu (four wire system)
      Low power consumption Modbus rs485-rtu (four wire system)
Power supply voltage: 
      universal type: 24 VDC (9 ～ 30 VDC)
      Low power consumption type: 3.6vdc (3.1 ～ 6.1vdc)
Service life: ≥ 1 million times
Insulation impedance: ≥ 1000m Ω / 100VDC
Load impedance: current output: ≤ 800 Ω;
Medium temperature: - 20-80 ℃
Ambient temperature: - 20 ～ 70 ℃
Compensation temperature: 0 ～ 70 ℃
Response time: ≤ 5ms
Overload pressure: 150% FS
Failure pressure: 3 times of range (range less than 40MPa); 2 times of range (range greater than 41mpa)
Electrical connection: direct outgoing line of waterproof fastening nut, supporting explosion-proof electrical connection
Protection grade: IP65 / IP68
Connecting cable: four core shielded cable, standard length: 3M
Connection material: 304 / 316L
Process connection: m20x1.5, G1/2, ZG1/2, 1/2NPT, DN50 Specifications can be made by users







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:
General rs485-rtu output, DC 12-30vdc power supply;
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;
Installation method: thread, flange, special structure;
Whether the installation space meets the overall dimension of the product;

Product power supply range, 9-30vdc (low power RS485 output type is 3.1-5vdc);
It is strictly prohibited to use hard objects (such as screwdriver, finger, iron nail, etc.) to make the pressure diaphragm output under pressure measurement;
The power and signal wires shall be correctly wired according to the specifications of the ordered products;
During product installation, 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 pressure transmitter is a precision measuring instrument. Do not impose impact or smash to avoid damaging the core
The product is installed in a ventilated, dry and non corrosive environment, and installed in the open with protective devices to avoid direct sunlight;
It is strictly prohibited to enter / leak / soak water in the product instrument, and protective devices shall be installed in the open to avoid direct sunlight;

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