Exquisite intelligent temperature transmitter

NegotiableUpdate on 04/22

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Exquisite intelligent temperature transmitter with built-in imported PT100 high-precision temperature sensor. The equipment adopts exquisite circuits, compact structure, saves leads, and outputs large signals. Fast temperature response speed, high accuracy, and good long-term stability, suitable for working requirements in different environments.

Product Details

　　Common faults of sophisticated intelligent temperature transmitters:

1. When the temperature of the measured medium increases or decreases, the output of the transmitter does not change. This situation is mostly due to the sealing of the temperature transmitter, which may be caused by the temperature transmitter not being sealed properly or accidentally welding a small hole in the sensor during welding. In this case, it is generally necessary to replace the transmitter housing to solve the problem.

2. The unstable output signal is due to the temperature source capability, which is an unstable temperature. If the instrument display is unstable, it is due to the weak anti-interference ability of the instrument.

3. The output error of the transmitter is large, and there are many reasons for this situation. It may be due to the incorrect resistance wire of the selected temperature transmitter, resulting in a range error, or it may be due to the transmitter not being calibrated properly when it leaves the factory.

troubleshooting

1. Errors occur due to leakage or blockage of the three valve group of the temperature transmitter.

2. The zero position of the temperature transmitter is too high (or too low), causing the static and differential pressure values to be larger (or smaller), resulting in the calculated gas volume being larger (or smaller) than the actual gas volume.

3. The accuracy level and range selection of the temperature transmitter are incorrect, or the selection is not in accordance with the requirements of GB/T18603-2001 "Technical Requirements for Natural Gas Metering Systems", resulting in additional measurement errors.

It can effectively protect against damage caused by induction lightning or the start stop of high-power equipment within the power supply system, line faults, switching actions, the operation of frequency conversion equipment, and welding machines during on-site construction.

The probe and housing of the product are made of 316L stainless steel, and the structure adopts laser welding technology. The connecting wire adopts IP67 waterproof aviation plug outlet, which greatly ensures the long-term stability and reliability of the product.

　　Attention to the use of sophisticated intelligent temperature transmitters：

1. Wiring: The wiring of the safety spark circuit (input signal line) must be insulated or shielded wires, and isolated from the wiring of non safety spark circuits to avoid mutual contact.

2. Different models of temperature transmitters should be wired according to the instructions. When wiring explosion-proof instruments with safety spark circuits, they must not be connected incorrectly and carefully checked for short circuits or incorrect connections.

3. When using temperature transmitters, special attention should be paid to the distinction between ordinary and intrinsic safety types. Ordinary types cannot be installed in hazardous areas, while intrinsic safety types can be installed in hazardous areas.

4. The input of the thermal resistance transmitter is a three wire system, and the line resistance of each connecting wire should be equal and within the same ambient temperature.