SM2101M Protective 4-20mA Temperature PT100 Current Transmitter
User Manual
File Version: V21.3.24
Product Overview
The SONBEST SM2101M is a protective 4-20mA current output temperature transmitter designed for PT100 sensors. It offers easy integration with PLC, DCS, and other industrial monitoring systems for temperature state quantities.
Featuring an internal high-precision sensing core and related devices, the SM2101M ensures high reliability and excellent long-term stability. It supports various output methods, including RS232, RS485, CAN, 4-20mA, DC0~5V/10V, ZIGBEE, LORA, WIFI, and GPRS, allowing for customization to specific application needs.
Device Description: The device is a compact, enclosed unit with external cable connections. It is labeled "SONBEST 搜博 SM2101M 4-20MA 温度变送器" (SONBEST SM2101M 4-20mA Temperature Transmitter). It has two main cable outputs: one labeled "SENSOR" with a red core and a black core, and another labeled "4-20MA" with red and black wires.
Technical Parameters
| Technical Parameter | Parameter Value |
|---|---|
| Brand | SONBEST |
| Temperature measurement range | -50°C to +100°C (optional with other ranges) |
| Detecting Core Devices | PT100 |
| Temperature Measurement Accuracy | ±0.5°C (0.5FS) |
| Thermal Response Coefficient | 10mΩ/K |
| The resistance @ °C | 1000Ω±0.12Ω/K |
| The resistance rate | 0.385Ω/K |
| Reference Standards | Using EN 60751 Class B Standards |
| Channels | 1 |
| Communication Interface | DC4~20mA |
| Power | DC12~24V 1A |
| Running temperature | -40~80°C |
| Working humidity | 5%RH~90%RH |
Wiring Instructions
Incorrect wiring can cause irreversible damage to the product. Please carefully wire the cable as follows in the case of power failure, and then connect the cable to confirm the correctness and then use it again.
| ID | Core color | Identification | Note |
|---|---|---|---|
| 1 | Red | V+ | Power V+ |
| 2 | Blue | I+ | Sensor output |
| 3 | BLACK | V- | Power negative electrode |
Wiring Diagram Description: The diagram illustrates the connection points. The "SENSOR" input has a red core wire and a black core wire. The "Power" output has a red core wire (labeled V+) and a black core wire (labeled V-). A blue core wire (labeled I+) is shown connected to the "4-20mA" output, which is also connected to an ammeter.
Disclaimer
This document provides all information about the product. It does not grant any license to intellectual property, nor does it express or imply any other means of granting intellectual property rights, such as the statement of sales terms and conditions of this product, or other issues. No liability is assumed. Furthermore, Shanghai Sonbest Industrial Co., Ltd makes no warranties, express or implied, regarding the sale and use of this product, including its suitability for a specific use, marketability, or infringement liability for any patent, copyright, or other intellectual property rights, etc. Product specifications and descriptions may be modified at any time without notice.
Contact Us
Company: Shanghai Sonbest Industrial Co., Ltd
Address: Building 8, No. 215 North east road, Baoshan District, Shanghai, China
SKYPE: soobuu
Email: sale@sonbest.com
Tel: 86-021-51083595 / 66862055 / 66862075 / 66861077
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