Foshan puliang Electronic Co., Ltd

pressure measurement

General purpose pressure transmitter

High pressure transmitter

Flat film pressure transmitter

Differential pressure transmitter

Communication digital pressure transmitter

Special pressure transmitter

High temperature pressure transmitter

Pressure transmitter chip

Pressure switch

Pressure gauge

Micro pressure switch

Common Rail Pressure Sensor

Single crystal silicon pressure transmitter
Level measurement

Static level

level transmitter

Capacitive level transmitter

Magnetostrictive level meter

Ultrasonic level gauge
Temperature humidity measurement

Temperature sensor

Humidity sensor

Temperature humidity sensor
Wireless IOT
Force measuring and weighing
Acquisition and monitoring

RS485 sensor acquisition software

Brake shoe pressure software
Flow measurement
Product accessories

Hardware accessories

Acquisition and connection

Other accessories

PT500-590

Imported pressure sensing chip is adopted; Selected patch process;
Integrated pressure and temperature, simultaneous measurement and wheel patrol display;
Pressure and temperature integrated LCD display meter, 5-digit display;
Switching of multiple pressure units; Numerical value display, percentage display;
Power supply mode: 3.6vdc power supply from built-in battery or 5VDC / 24VDC power supply from external power supply;
High precision, stable, digital calibration, adjustment and amplification integrated circuit;
Digital output signal Modbus rs485-rtu communication protocol;
Industrial grade 2088 cast aluminum alloy explosion-proof shell, reliable and solid strength;
It can replace foreign products of the same type;

Product parameters
Specification parameter
Ordering considerations
Precautions for use
Common problem
Proposal

Model: PT500-590

Chip:
Imported pressure sensing chip is adopted; Selected patch process;
Zero point, full degree, temperature compensation and linear compensation;
High impedance, high precision and high stability;
More than 1 million times of service life;

Signal processing and output:
Adopt advanced 32bit microprocessor and 24bit ADC;
Ultra low power design, ultra low power RS485 design;
Multipoint curve fitting technology;
Battery power collection and management;
Independent dual channel acquisition and integrated design, which can be used as separate pressure, separate temperature and temperature pressure integration;
8-bit LCD 8-segment digital display, ignoring the value error;
Dynamic backlight management, convenient operation to the greatest extent and save power consumption to the greatest extent;
Support user reset, de reset, user calibration, factory recovery and other operations;
The acquisition interval is 0 ~ 65535 seconds, which can be set according to the site conditions to minimize power consumption;
Support the free configuration of Modbus RTU protocol, and users can make private RS485 protocol;

Structure:
Thick film structure: deep argon arc welding, connecting elastic materials and process joints, high strength, impact resistance and fatigue resistance;
PU membrane structure: laser welding, connecting elastic materials and process joints, silicone oil medium to transfer pressure, fast response, fatigue resistance, small range;
Industrial grade 2088 cast aluminum alloy explosion-proof shell, reliable and solid strength;
Small overall structure and diversified process connection modes (m20x1.5, G1 / 2, ZG1 / 2, 1 / 2NPT (thread diameter ≥ 17mm), DN50, etc.);
Process connection material: 304 or 316;

Application:
Oil pressure, water pressure and air pressure measurement and monitoring;
Equipment pressure measurement in industrial / power / Petroleum / automation and other fields;

Application fields:

Intelligent fire control
Smart city
Oil pressure system
Air supply system
Gas supply pipeline
Hydraulic equipment

Product family:

Main technical parameters
Measuring medium: liquid, gas, steam, etc
Pressure form: gauge pressure and 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
Nonlinearity: ≤ 0.25% FS
Repeatability: ≤ 0.1% FS

Output signal:
Rs485-rtu (low power consumption) (four wire system)
Lcd5 digit display meter

Supply voltage:
Built in 3.6vdc1200mah battery (14250 specification)
External power supply: 24VDC
External power supply: 5VDC

Acquisition frequency: 1-3600s / time, settable (data update frequency)
Service life: ≥ 1 million times
Insulation impedance: ≥ 1000 m Ω / 100VDC
Power consumption: the standby current is less than 50ua, and the acquisition current is less than 1.5mA
Medium temperature: - 20 ~ 80 ℃
Ambient temperature: - 20 ~ 70 ℃
Temperature compensation: 70 ～ 0 ℃
Response time: ≤ 5ms
Overload pressure: 150% FS
Failure pressure: 3 times the range (the range is less than 40MPa); 2 times the range (the range is greater than 41mpa)
Electrical connection: the waterproof tightening nut directly leads out, which can be matched with explosion-proof electrical connection
Protection grade: IP65
Connecting cable: four core shielded cable, standard length: 3M
Connecting material: 304/316L
Process connection: M20x1.5 G1/2, ZG1/2, 1/2NPT, DN50... Specifications can be formulated by users

Precautions for ordering PT500-590 products

1. Product range selection:
In order to achieve the best effect of product accuracy, service life, stability and other functions, the range of the product is calculated according to the following formula:
Range = x (1.2-1.5) times the maximum pressure of the system;
The actual measuring pressure range of the product should be 15% - 80% of the measuring range;
Temperature range: distinguish between measuring temperature and medium. The required product is measuring medium temperature or testing ambient temperature. Explain the situation with the salesperson when ordering;

2. Product power supply and output:
The selection of power supply range is determined according to the output specifications of the product:
A. Built in battery 3.6v1200mah;
B. External 5VDC power supply;
C. External 9-24vdc power supply;
Conventional Modbus rs485-rtu low-power digital output;
5-digit LCD display meter; The default acquisition time is 1s / time;

3. Users need to understand the characteristics of the measuring medium of the product:
Medium specification, medium temperature, medium purity (whether it contains 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 grade;
Vibration range of equipment;
Installation method: thread, flange and special structure;
Whether the installation space meets the overall dimension of the product;

Product power supply range, internal battery power supply: 3.6vdc, external power supply 5VDC or 24VDC;

It is forbidden to use hard objects (such as screwdriver, finger, iron nail, etc.) to make the pressure diaphragm subject to pressure measurement output;

The battery installation, external power supply and signal line shall be wired correctly according to the specifications of the ordered products;

When installing the product, the stressed part is "process connection hexagonal wrench position", and the wrench specification corresponds to the hexagonal wrench position;

It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the measured system exceed the rated service range of the transmitter;

Pay attention to protect the outgoing cable of the transmitter. When the span is too large, it is recommended to use metal pipe for protection or overhead;

The pressure transmitter is a precision measuring instrument. Do not impose impact and beating to avoid damaging the core

The product is installed in a ventilated, dry and non corrosive environment. Protective devices are installed in the open air to avoid direct sunlight;

Water / water leakage / soaking is strictly prohibited for product instruments. Protective devices shall be installed in the open air to avoid direct sunlight;

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