Explosion proof integrated temperature transmitter

Explosion proof integrated temperature transmitter

Explosion proof integrated temperature transmitterThermocouple temperature transmitter and thermistor temperature transmitter are；On site installed temperature transmission unit in the series of instruments. It adopts a two-wire transmission method (two wires as power input and a common transmission line for signal output). Convert thermocouple and thermistor signals into input electrical signals, measured temperatures, or linear signals4～20mAThe output signal of the transmitter can be installed in the junction box of thermocouples and thermal resistors to form an integrated structure. As a new generation of temperature measuring instrument, it can be widely used in industrial sectors such as metallurgy, petrochemicals, power, light industry, textiles, food, national defense, and scientific research.

IICharacteristics of temperature transmitter

1Adopting an epoxy resin sealing structure, it is earthquake resistant, temperature resistant, and suitable for installation and use in harsh on-site environments.

2Installed on-site in the junction box of thermistor and thermocouple, directly outputting4～20mAThis not only saves expensive compensation wire costs, but also improves the anti-interference ability during long-distance signal transmission.

3High precision, low power consumption, wide temperature range for use, stable and reliable operation.

4The range is adjustable and has a linearization correction function. The thermocouple temperature transmitter has a cold end automatic compensation function. Widely applicable, it can form an integrated on-site installation structure with thermocouples and thermistors, and can also be installed as a functional module in testing equipment.

IIIMain technical indicators：

1Input: ThermistorPt100

2Output: Output within the range of measurement4～20mAThe DC signal can be linear with the output resistance signal of the thermistor thermometer and linear with the input temperature signal of the thermistor thermometer; It can be linear with the millivolt signal input by the thermocouple, or linear with the temperature signal input by the thermocouple thermometer.

3Basic error: ±0.2%、 ±0.5%

4Transmission method: Two line system

5The working power supply voltage of the transmitter is the lowest12V， Zui High35VRated working voltage24V

6Load: The maximum load resistance is calculated according to the following formula

RL（max）=50×（Vmm-12）

namely24VThe load resistance can be0～600Select the rated load within the range of Ω250Oh.

Note: The range adjustable transmitter requires repeated debugging of zero and full scale when changing the range; The thermocouple type transmitter needs to be preheated before debugging30minute.

7Environmental temperature impact ≤0.05%1℃

8Normal working environment:

aEnvironmental temperature -25℃～+80℃

bRelative humidity5%～95%

cMechanical vibrationf≤55HzAmplitude ＜0.15mm.