Foshan puliang Electronic Co., Ltd

Product description of strain type pressure transmitter:

PT500-DAVS Pressure Transmitter
It adopts pure domestic pressure sensitive chip and selective placement technology;
High precision, stable, digital calibration adjustment, amplification integrated circuit;
Output signal 4-20mA two-wire system;
It can replace Hirschmann Davs series products;
M12 integrated connector;

Common keywords:
Davs pressure transmitter replaces Davs transmitter replaces Davs transmitter
Hirschmann sensor Hirschmann transmitter

Chip:
Pure domestic pressure sensing chip is used;
The selected placement process;
Zero point, fullness, temperature compensation and linear compensation;
High impedance, high precision and high stability;
More than 1 million times of service life;

Signal processing and output:
24 bit ADC sampling and processing chip;
DSP digital signal conditioning algorithm;
Multipoint linear 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);
Advanced 32 bit microprocessor and 24 bit ADC are adopted

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;
304 / 316 shell, reliable and strong strength;
The overall size is 19x in diameter and 65mm in length. The process connection standard is G1 / 4;
Process connection material: 304 or 316;

Application:
Measurement and monitoring of oil pressure, water pressure and air pressure;
Equipment pressure measurement in industrial / power / Petroleum / automation fields;

Application fields:

Smart city
Oil pressure system
Metallurgical equipment
petrochemical industry

Product family:

Specification parameter

Main technical parameters of pt500-davs pressure transmitter:

Measuring medium: liquid, gas, steam, etc
Pressure form: gauge pressure
Range: 0～60bar;
0～300bar；
0～400bar；
0～600bar；
Comprehensive accuracy: ± 0.1% FS; ± 0.25% FS; ± 0.5% FS;
Nonlinearity: ≤ 0.25% FS
Repeatability: ≤ 0.1% FS
Output signal: current type: 4-20mA two-wire system;
Power supply voltage: 24 VDC (9 ～ 30 VDC)
Service life: ≥ 1 million times
Insulation impedance: ≥ 1000 m Ω / 100VDC
Load impedance: current output: ≤ 800 Ω;
Medium temperature: - 20 ～ 80 ℃
Ambient temperature: - 40 ～ 70 ℃
Compensation temperature: 0 ～ 70 ℃
Response time: ≤ 5ms
Overload pressure: 150% FS
Failure pressure: 3 times of measuring range (less than 40MPa); 2 times of measuring range (measuring range greater than 41mpa)
Electrical connection: Waterproof tight wire nut directly leads out, can be matched with explosion-proof electrical connection
Protection grade: IP68
Connecting cable: M12 aviation connector
Connection material: 304 / 316L

Process connection: G1 / 4

Ordering considerations

Precautions for ordering PT500-DAVS 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 output, DC 12-30vdc power supply;

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;

Precautions for use

Product power supply range, 9-30vdc ;
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;

Common problem

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