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

Product description of strain type pressure transmitter:

Common keywords:
Digital pressure transmitter low power consumption pressure transmitter
TTL pressure transmitter low power pressure transmitter
Digital pressure sensor low power pressure sensor

Chip:
Imported brand pressure sensitive chip wafer;
Selected chip technology and full sealed package;

Signal processing and output:
32-bit ADC sampling and processing chip;
DSP digital signal conditioning algorithm;
Multipoint linear temperature calibration;
Voltage and current overload protection;
The stable amplifier IC with ultra-low power consumption has a standby current of less than 50ua and a working current of less than 1.5mA;
Low voltage power supply 3-5vdc, suitable for lithium battery and USB power supply;
TTL modbus-tru standard communication protocol, direct docking single chip data acquisition;

Structure:
Compact structure, full seal welding structure, impact resistance, fatigue resistance, high reliability, a variety of process connection mode
Process connection material, 304 / 316;
Electrical connection: din43650 hesman standard electrical connector;
Supporting standard four core shielded cable;

Application:
Pipeline water pressure and pressure measurement of hydraulic equipment
Pressure measurement of hydraulic system pipeline and hydraulic equipment
Pressure monitoring of water supply network in smart city
Intelligent fire water pressure monitoring
Pressure measurement in other fields of civil / industrial automation

Application fields:

Intelligent fire control
Smart city
Oil pressure system
Fire fighting system

Product family:

Specification parameter

Technical parameters
Measuring medium: liquid and gas (compatible with connecting materials of product process)
Pressure form: gauge pressure, absolute pressure
Range: 0 ～ 0.6 ～ 60MPa
-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: TTL MODBUS-RTU digital communication
Power supply voltage: 3.6vdc (3-5vdc)
Insulation impedance: ≥ 1000m Ω / 100VDC
Medium temperature: - 20-80 ℃
Ambient temperature: - 20 ～ 70 ℃
Compensation temperature: 0 ～ 70 ℃
Response time: ≤ 5ms
Overload pressure: 150% FS
Failure pressure: 5 times of range (range less than 5MPa); 3 times of range (range greater than 5MPa)
Electrical connection: Hersman (din43650)
Protection grade: IP65
Connecting cable: four 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

Precautions for ordering PT500-540 TTL digital pressure transmitter
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:
Power supply range 3-5vdc:
Low power ttl-rtu output;
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;
Pressure seal: taper seal, face seal, arc seal, spherical seal;
Whether the installation space meets the overall dimension of the product;

Precautions for use

Precautions for PT500-540 TTL digital pressure transmitter
Product power supply 3.6vdc (range: 3-5vdc);
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 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;

Common problem

Proposal

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