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pressure measurement

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Brake shoe pressure software
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PT500-702TS

Model: PT500-702TS
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;
Four digit pressure indicator, display range: - 1999-9999, sampling rate: 10 times / S;
Standard 4-20mA current or rs485-rtu communication signal output;
Industrial type 2088 explosion-proof aluminum alloy shell, reliable and solid strength;

Common keywords:
Digital high pressure transmitter digital high pressure sensor
Digital high pressure transmitter digital high pressure sensor

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;
Four digit pressure indicator, display range: - 1999-9999, sampling rate: 10 times / S;
Standard industrial signal output: 4-20mA (two-wire system);
Digital communication signal output: rs485-rtu;
4-20mA (two-wire system) + rs485-rtu communication dual output;
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
Support the user's secondary calibration, reset, anti reset, factory restoration and other operations
Structure:
Compact structure, full seal welding structure, impact resistance, fatigue resistance, high reliability and various process connection modes;
Process connection material, 304, four sealing methods are optional: taper seal, end face seal, arc face seal and spherical seal;
Electrical connection: tight nut sealing structure leads, waterproof and moisture-proof;
Supporting standard four core shielded cable;

Application:
Pressure measurement of large hydraulic machinery and hydraulic station;
Pressure measurement and control of water cutter and ceramic wire cutter;
Hydraulic system pipeline and hydraulic equipment pressure measurement control;

Application fields:

Oil pressure system
Ceramic cutting
Water cutter equipment
Gas supply pipeline
High pressure pump
Hydraulic equipment

Product family:

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: 4-20mA two-wire system;
RS485-RTU；
4 ～ 20mA + rs485-rtu dual output
Four digit display, display range: - 1999 - 9999
Sampling rate of pressure gauge: 10 times / S
Power supply voltage: 24VDC (9-30vdc)
Switch 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: ≤ 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: direct outgoing line of waterproof fastening nut, supporting explosion-proof electrical connection
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

三、結(jié)構(gòu)尺寸

四、電氣連接

五、安裝方式

Precautions for ordering PT500-702TS 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, DC 12-30vdc power supply;
Display header, four places, one decimal place;

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 mode 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;

PT500-702TS pressure transmitter
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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