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

Product description of strain type pressure transmitter:

PT500-PS01

Model: PT500-PS01
Precision pressure sensing chip is used;
2-way relay output;
4-digit display of the current pressure value, key adjustment and field setting of various parameters, easy to operate;
The pressure preset upper and lower limit switch signal, the switch value can be set arbitrarily from zero to full degree;
The shell is provided with node action led, which is convenient for observation;
Common keywords:
Digital pressure controller digital pressure switch
Pressure switch gauge intelligent pressure switch
Dual pressure switch display gauge pressure switch
Chip:
It adopts precision pressure sensitive chip, selective chip placement technology with zero point, full range compensation and temperature compensation;
Diffused silicon core, high sensitivity, large output, with zero point, full range compensation, temperature compensation; suitable for small range pressure transmitter;
Strain gauge core body, high strength elastic deformation pressure sensing material, with temperature compensation, has the advantages of impact resistance and fatigue resistance; it is suitable for general range pressure transmitter;
Signal processing and control output:
4-digit display of current pressure value, display range: - 1999-9999, five engineering units: psi, bar, kPa, kg / C m2mpa;
High precision stable amplifier IC, 24 bit ADC sampling and processing chip, DSP digital signal conditioning algorithm, multipoint linear temperature calibration;
Large screen LCD display, high resolution, ignoring value error;
All electronic structure, flexible use, simple operation, easy debugging, safe and reliable;
The pressure preset upper and lower limit switch signal, the switch value can be set arbitrarily from zero to full degree;
The shell is provided with node action led, which is convenient for observation;
2-way relay switch output;
The load capacity of the relay is strong: K1: 250VAC / 10A; 30VDC / 10A; K2: 250VAC / 3A; 30VDC / 3a
Structure:
Compact structure, full seal welding structure, impact resistance, fatigue resistance, high reliability, a variety of process connection mode;
Simple operation, easy debugging, safe and reliable;
High protection level, suitable for installation in various working conditions;
Process connection material, 304, diversified ways (M20, M16, M12, G1 / 4, G1 / 2, 1 / 2NPT, 1 / 4NPT, etc.);
Application:
Measurement and control of pipeline water pressure and hydraulic equipment pressure
Pressure measurement and control of hydraulic system pipeline and hydraulic equipment
With PLC, display instrument to achieve the acquisition and input of pressure switch
Pressure measurement in other fields of civil / industrial automation

Application fields:

Oil pressure system
Air supply system
petrochemical industry
Air compressor unit

Product family:

Specification parameter

Measuring medium: liquid and gas (compatible with product process connection materials)
Pressure form: gauge pressure, absolute pressure
Range:
0～0.6～60MPa～150MPa
-0.1～0～0.6～5MPa
-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: two way relay switch value
Power supply voltage: 24 VDC (9 ~ 30 VDC) / current consumption < 60 Ma
LCD display mode: 4-digit tube code
Display range: - 1999 - 9999
Switch load capacity:
K1:250VAC/10A；30VDC/10A
K2:250VAC/3A；30VDC/3A

Switch life: 1 million times
Insulation impedance: ≥ 1000 m 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: 5 times of measuring range (less than 5MPa); 3 times of measuring range (measuring range greater than 5MPa)
Electrical connection: M12 electrical connector (five core)
Protection grade: IP65
Connecting cable: four core / five core shielded cable, standard length: 3M
Connection material: 304 / 316L
Process connection:M20x1.5, G1/2, G1/4, ZG1/4, 1/4NPT, ZG1/2, G3/8, M12x1.5

Ordering considerations

1. Product range selection:
In order to achieve the best effect of product precision, life, stability and other functions, the range selection of the product is calculated according 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 measuring range;

2. Product power supply and output:
Power supply range: DC 12-30vdc;
The switch output of the relay has load capacity, and the driving current is less than the rated current;
Whether 4-20mA transmission output is required;

3. To understand the measurement medium characteristics of the product:
Medium specification, medium temperature, medium purity (whether it contains impurities or particles, etc.);

4. Users should understand the product installation environment and installation method:
Indoor or outdoor installation;
Ambient temperature;
Required sealing class;
Vibration range of equipment;
Installation mode: thread, flange and special structure;
Whether the installation space meets the overall dimensions of the product;

Precautions for use

Product power supply is 24 VDC (range: 9-30 VDC);

It is forbidden to drive the load beyond the rated standard of the product;

It is strictly forbidden to use hard objects (such as: screwdrivers, fingers, nails, etc.) to make the pressure measurement output of the pressure core body;

The power supply and signal lines shall be correctly connected according to the product specifications;

When the product is installed, the stress part is "process connection hexagonal wrench", and the wrench size is corresponding to the hexagonal wrench;

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

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

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

The circuit connection should be as short as possible and shielded wire should be used;

Try to avoid direct access to the wiring of user devices or electrical and electronic devices that cause interference. If micro hose is used for installation, the shell must be grounded separately

Common problem

Proposal

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