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Working Principle


The transmitter circuit module is composed of amplification unit, linearization unit, voltage/current conversion, self-calibration circuit, voltage adjustment unit and reverse protection circuit. The compensator, which uses thermal resistance as the temperature measuring element, also includes an R/V conversion unit.

Features

(1) Wide working environment temperature: -30∼C~+120∼C
(2) With a high-precision cold junction compensation circuit, the absolute error of the full temperature range is ㊣0.5∼C (S thermocouple ㊣0.8∼C);
(3) Advanced nonlinear correction circuit, the output signal has a linear relationship with the measured temperature.
(4) Built-in drift self-correction system to ensure measurement accuracy in the entire working temperature range;
(5) With a special heat control mechanism, it can effectively control the heat conduction;
(6) Encapsulated with epoxy resin, corrosion-resistant, shock-resistant, high reliability;
(7) It has a wide range of applications. It can not only form an integrated on-site installation structure with thermocouples and thermal resistances, but also be installed in testing equipment as a functional module.
(8) The unique anti-interference circuit design ensures that the transmitter can work safely and reliably under various interferences; it especially has an anti-electromagnetic interference unit, which is suitable for modern environments with serious electromagnetic pollution.

Technical Indicators

1. Basic error: ㊣0.2%, ㊣0.5%
2. Effect of environmental temperature change: 0.2 level 0.02 %FS/⊥ 0.5 grade 0.05%FS/⊥
3. Output signal: 4~20mA, two-wire transmission;
4. Load resistance: O~600次
5. Power supply: 12~36VDC;
6. Working environment:

(1) Ambient temperature: -25~+85∼C (ordinary temperature transmitter)
Ambient temperature: -30~+120∼C (high temperature ambient temperature transmitter)

〤 Relative humidity: 5~95%RH without condensation;
7.Explosion-proof grade: intrinsically safe iallCT5;

Shape




Overview


This series of modules is miniaturized and adopts the international general DIN rail installation standard. It has a very high performance-price ratio, adopts advanced SMD technology, and works very reliably and stably. It is an ideal supporting unit for intelligent regulators and DCS systems.



Features

Input, power supply, and output are isolated from each other Input overcurrent protection dynamic response time is less than 0.1S

Shape



General Technical Conditions

Precision ㊣05%F﹞S

Insulation strength

Between input, output and power supply, AC1500V/1 minute
linear ㊣0.1 %F﹞S

Insulation resistance

Between input, output and power supply, 100M次 (DC500V)
Load Resistance 250~750次

Consumption of utility

1.5W (one way)
Temperature Coefficient <100ppm/⊥

Power supply

DC24V㊣10%
Response time <0.1S (0-9%)

Operating temperature

0-40⊥ <95%RH

Models And Specifications

Name

Input signal

Output signal Function
Distributor (single channel)

4~20mADC

4~20mADC or 1~5VDC

It provides distribution power to the two-wire transmitter and converts the signal isolation of the transmitter to the output

Distributor (dual channel)

4~20mADC

4~20mADC or 1~5VDC
Distributor (one into two out)

4~20mADC

4~20mADC or 1~5VDC
Distributor/Isolator

4~20mADC

4~20mADC or 1~5VDC
Isolator (single channel)

4~20mADC

4~20mADC or 1~5VDC

nput and output signal isolation conversion

Isolator (dual channel)

4~20mADC

4~20mADC or 1~5VDC
Isolator (one in two out)

4~20mADC

4~20mADC or 1~5VDC
Isolator (single channel)

1~5VDC

4~20mADC or 1~5VDC
Isolator (dual channel)

1~5VDC

4~20mADC or 1~5VDC
Thermocouple Transmitter

Thermocouple (single input)

4~20mADC or 1~5VDC (dual isolated output)

Converts the transmitter*s temperature signal isolation to an output

Thermal resistance transmitter

Thermal resistance (single input)

4~20mADC or 1~5VDC (dual isolated output)

Overview

The distributor is a miniaturized card-mounted instrument. Its main function is to provide an isolated power supply for the two-wire transmitter installed on site through a DC converter, and at the same time deliver the 4~20mADC from the two-wire transmitter. The signal is converted into an isolated 1~5VDC/4~20mA DC signal, which is supplied to indicators, recorders, analog regulators, and DCS systems, and is widely used in industrial production process detection and control systems. Therefore, this distribution device is an indispensable instrument variety that constitutes a non-explosion-proof automatic control system.
The isolator is a miniaturized card-mounted instrument, the main function is to convert 4~20mADC signal or 1~5VDC signal into mutually isolated 4~20mADC or 1~5VDC output supply indication, recorder, analog regulator, programmable Single/multi-loop digital regulators, distributed control systems and industrial process control machines, etc., and form various automatic monitoring and control systems. Therefore, this isolator is an indispensable instrument variety for non-explosion-proof automatic control systems.

Input And Output Range

Input signal: 0~5V, 1~5V, 0~10mA, 0~20mA, 4~20mA, 0~10V, -5V~+5V, -10V~+10V and other user-specific specifications.
Output signal: 0~5V, 1~5V, 0~10v, -10~+10V, 0~10mA,
~20mA, 4~20mA, 20~4mA, 5~0V and other user-specific specifications.
Power supply: DC 24v, 15V, 12V, ㊣12v, AC 220V or other user-specific specifications.
Ordering model: AM-T-input signal/output signal [24V DC power supply if not specified

The Main Technical Parameters

Input impedance: ≡100K次 (voltage input) <50次 (current input)
Temperature coefficient: 150ppm/C
Frequency response: <2000Hz
Input load resistance: ≡5K次 (voltage output) ≒250次 (current output, specify when ordering for special requirements)
Accuracy: 0.2%
Linearity: 0.1%
Isolation voltage: 2000vDC (1 minute) (input, output, power three-party isolation)
Working temperature range: 0~50⊥
Power supply voltage: 24VDC㊣10%
Power consumption: <40mA (excluding output current)

Principle Block Diagram


Product selection

product name

product model

basic function

remarks

DC current separator

CHTK1522

Input all DC flow, output all DC small signal, power DC24 power supply

Length: * width: * height: 108mm*25.4mm: * 47mm

AC voltage isolator

CHTK1520

Input all AC voltage, output small DC signal, power supply DC24

DC voltage separator

CHTK1521

Input all DC voltage, output small DC signal, power supply DC24

Second-line isolation device

CHTK1525

Input a second line system, output a road DC signal,

Power supply DC24 power supply

AC current separator

CHTK1526

Input all AC current, output small DC signal, power supply DC24

(passive) passive isolator

CHTK1562

Input one DC signal and output one DC signal

potentiometer signal isolator

CHTK9020

Input a road potentiometer, output a road DC signal, power supply DC24 power supply

Thermal resistance isolator

CHTK9050

Input thermal resistance, output DC signal, power DC24 power

Thermocouple isolator

CHTK9060

Input a thermocouple, output a DC signal, power supply DC24 power supply

Resistance signal isolator

CHTK2020

Input one road resistance or potentiometer signal, output one road DC small signal, power supply DC24V

product name

product model

basic function

remarks

Super Pu-type signal isolator

CHTK1622

Input one road DC signal, output one road DC signal, power supply AC / DC220 or DC24V

Length * width * height 106mm*12.5mm * 112mm

Super Pu type thermal power resistance separator

CHTK169050

Input one road thermal resistance signal, output one road DC signal, power supply AC / DC220 or DC24V

Super Pu type thermocouple separator

CHTK169060

Input one road thermocouple signal, output one road DC signal, power supply AC / DC220 or DC24V

Safety gate signal separator

CHTK1822

Input a DC signal, output a DC signal, power DC24V, detection input and operation output

Length, * width, * height, 122mm * 18mm * 96mm

Thermoelectric resistance safety gate

CHTK189050

Input one road thermal resistance signal, output one road DC signal, power supply DC24V

Thermocouple safety gate

CHTK189060

Input one road thermocouple signal, output one road DC signal, power supply AC / DC220 or DC24V

Pluggable signal isolator

CHTK1722

The full signal isolator inputs one DC signal, output DC signal, power supply AC / DC220 or DC24V

Length, * width, * height, 85mm * 23mm * 103mm

Plug-in thermal resistance isolator

CHTK179050

The full signal isolator inputs one thermal resistance signal, one DC signal, power supply AC / DC220 or DC24V

Plug-in thermal resistance isolator

CHTK179060

The full signal isolator inputs one-way thermocouple signals and outputs one-way DC signal power supply AC / DC220 or DC24V

Full signal isolator

CHTK15241

Input one road DC signal, output one road DC signal, power supply AC / DC220 or DC24V

Length * in width * 99mm * 35mm * 115mm in height

Full signal isolator

CHTK15242

Input one DC signal and output two DC signals, power supply AC / DC220 or DC24V

Full signal isolator

CHTK15244

Input one-way DC signal, output four-way DC signals, power supply AC / DC220 or DC24V

Full signal isolator

CHTK15252

Input one second line system, output two DC signals, power supply AC / DC220 or DC24V

(passive) passive isolator

CHTK15622

Input a primary DC signal,

Output the two-way DC signals

DC isolator

CHTK21522

Input two DC currents, output two small DC small signals, power supply AC / DC220 or DC24V

Second-line isolation device

CHTK21525

Input two two lines, output two DC signals, power AC / DC220 or DC24V

Thermal resistance isolator

CHTK90501

Input one thermal resistance, output one DC signal, power supply AC / DC220 or DC24V

Thermal resistance isolator

CHTK90502

Input one thermal resistance, output two DC signals, power supply AC / DC220 or DC24V

Thermocouple isolator

CHTK90601

Input one road thermocouple, output one road DC signal, power supply AC / DC220 or DC24V

Thermocouple isolator

CHTK90602

Input one thermocouple, output two DC signals, power supply AC / DC220 or DC24V

Thermocouple temperature transmitter

SBWR

Integrated module temperature transmitter

Basic error soil 0.2%, 0.5%, environmental temperature change, 0.20.02%FS /⊥, 0.50.05FS /⊥, output signal: 4~20mA, second line transmission; load resistance: 0~600 power supply: 12~36VDC; working environment

朴 45mm*15mm

Thermal resistance temperature transmitter

SBWZ




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