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

Product description of strain type pressure transmitter:

PT100 temperature transmitter

Model: PT100 temperature transmitter
Imported PT100 platinum resistor / J, K and e thermocouple temperature core is adopted;
The product structure is divided into:
2088 hammer type temperature transmitter;
Cylindrical hesman temperature transmitter;
Armored temperature transmitter;
Temperature sensor amplification module;
Split temperature transmitter, etc;
High precision, stable, digital calibration, adjustment and amplification integrated circuit;
With zero point, full scale and temperature compensation; Fast response, sensitive response, high precision and long-term stability;
Wide range of output signal types, 4-20mA / 0-20mA / 0-5V / 10V / rs485-rtu and low power consumption RS485;
Diversified structure: thread installation type, armored type, patch type, plug-in type, flange type, etc;
Air connection IP65 / 68;
304 / 316 / corundum tube / alloy and other shell materials;
Temperature range: - 198 ℃ ~ - 40 ℃ ~ 0 ~ 100 ℃ ~ 500 ℃ ~ 1000 ℃;
Probe rod length / diameter / thread specification / flange size can be formulated;
It can replace foreign high-voltage products of the same type;
PT100 / thermocouple transmitter is mainly used in:
Ambient temperature / greenhouse temperature monitoring;
Equipment temperature monitoring;
Temperature measurement and control in automation / Agriculture / chemical industry / electric power / meteorology and other fields;

Application fields:

Intelligent fire control
Steam supply system
Metallurgical equipment
Fire fighting system

Product family:

Specification parameter

PT100 temperature transmitter

Measuring medium: liquid, gas, solid, particle, etc. (compatible with product process connection materials)
Pressure form: gauge pressure and absolute pressure
Range:
-198 ℃ ~ 100 ℃ / mainly measure the temperature of ultra-low temperature medium;
-50 ℃ ~ 100 ℃ / mainly measuring ambient temperature;
0 ℃ ~ 100 ℃ ~ 500 ℃ / PT100 type measures the temperature of high-temperature medium;
0 ℃ ~ 500 ℃ ~ 1000 ℃ / thermocouple type to measure the temperature of high temperature / ultra-high temperature medium;
Temperature chip:
PT100 / PT1000 thermal resistance;
J / K / E and other thermocouples;
Comprehensive accuracy:
±0.25%FS, ±0.5%FS；
±1%FS；
±2%FS；
Output signal:
Current type: 4-20mA (two-wire system), 0-20mA (three wire system);
Voltage type: 0-5vdc, 0-10vdc, 0.5-4.5vdc (three wire system);
Digital communication type: rs485-rtu, TTL, RS232, low power consumption RS485 (four wire system);
Supply voltage:
24VDC (12-30vdc) / general type output signal power supply;
5VDC / output 0.5-4.5vdc;
3.7vdc (or battery powered) / low power output power supply;
Insulation impedance: ≥ 1000 m Ω / 100VDC;
Medium temperature:
-198 ℃ ~ 100 ℃ / mainly measure the temperature of ultra-low temperature medium;
-50 ℃ ~ 100 ℃ / mainly measuring ambient temperature;
0 ℃ ~ 100 ℃ ~ 500 ℃ / PT100 type measures the temperature of high-temperature medium;
0 ℃ ~ 500 ℃ ~ 1000 ℃ / thermocouple type to measure the temperature of high temperature / ultra-high temperature medium;
Ambient temperature: - 40 ~ 70 ℃
Stability: ≤± 0.5% FS / year
Vibration influence: ≤± 0.25% FS / year (mechanical vibration frequency 20Hz ~ 1000Hz)
Withstand pressure: less than 10 atmospheres in general, customized for special requirements
Protection grade: IP65 / IP68
Connecting material: 304 / 316L / corundum, etc
Process connection: m20x1 5. G1 / 2, specifications formulated by users

Ordering considerations

Precautions for ordering PT100/thermocouple transmitter sensor 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 temperature of the system;
The actual measuring pressure range of the product should be 15% - 80% of the measuring range;

2. Product output / accuracy level / power supply mode:
Current type: 4-20mA (two-wire system), 0-20mA (three wire system);
Voltage type: 0-5vdc, 0-10vdc, 0.5-4.5vdc (three wire system);
Digital communication type: rs485-rtu, TTL, RS232, low power consumption RS485 (four wire system);

Supply voltage:
24VDC (12-30vdc) / general type output signal power supply;
5VDC / output 0.5-4.5vdc;
3.7vdc (or battery powered) / low power output power supply;

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;
Pressure seal mode: taper seal, end face seal, arc seal and spherical seal;
Whether the installation space meets the overall dimension of the product;

Precautions for use

Precautions for use of Pt100 temperature transmitter

For installation and use, please check whether the relevant parameters of the product label and certificate are consistent with the operating conditions;
When the thermal resistance / thermocouple is installed, its insertion depth shall not be less than 8 ~ 10 times of the outer diameter of the thermal resistance protection tube;
Increase the heating part of thermal resistance / thermocouple as much as possible;
The thermal resistance / thermocouple shall be installed vertically as far as possible to prevent bending and deformation at high temperature.
In order to reduce the error during the use of thermal resistance / thermocouple, the surface of protective sleeve shall be close to the temperature of measured medium as much as possible;
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 sensor / transmitter cable or compensation wire;
Try to avoid direct access to user devices or electrical appliances causing interference;

Common problem

Proposal

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