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Isolation Transmitter

Your Professional Isolation Transmitter Supplier

 

Our goal is to become your true partner in the field of isolation transmitter China. The factory is located in Zhongguancun Overseas Science and Technology Park, Shijiazhuang High-Tech Zone. Adjacent to the R&D center, it has formed an integrated layout of "R&D, production and sales". We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 
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Why Choose Us

Quality Control

The company implements the ISO 9001 full-process quality control system. IQC (Initial Quality Control) conducts rigorous sampling inspections of core raw materials; IPQC (Initial Quality Control) uses AOI (Automated Optical Inspection) to detect welding defects and records data in real time; OQC (Outgoing Quality Control) conducts performance and EMC testing, and qualified products are labeled with traceability codes for problem tracing.

Our Certifications

CE Certification (compliant with EU EMC/EMD directives, applicable to the European market), FCC Certification (compliant with US electromagnetic compatibility standards), IEC 60950 Certification (ensuring the safety of information technology equipment), ISO 9001:2015 Quality Management System Certification (standardizing the entire production and operation process), and RoHS Certification (restricting hazardous substances, meeting environmental protection requirements).

Production Equipment

Our company possesses advanced production equipment, such as high-speed pick-and-place machines + automatic solder paste printers, multi-functional calibrators (voltage/current/resistance calibration), oscilloscopes (signal stability testing), and insulation testers (electrical safety testing), temperature and humidity test chambers (-40℃~120℃, 0%RH~100%RH) + high and low voltage impact testers, automated production lines, anti-static workbenches, and AOI inspection machines (SMT soldering defect detection).

 

Our Services

The company has established a 24-hour technical support hotline and online service platform (WeChat, email). For product usage issues, technicians will provide remote guidance within 1 hour (video call, online debugging); for complex faults that cannot be resolved remotely, the company provides on-site service (on-site service within 48 hours in major domestic cities, and international on-site service coordinated by local partners). The company provides a 12-month product warranty (extended to 24 months for long-term customers) and regularly provides post-warranty maintenance reminders to ensure long-term stable product operation.

Advantages of Isolation Transmitter
1

Electrical safety isolation

Isolation transformers with ratio separate primary and secondary windings to prevent electric shock, providing safe operation during equipment use, testing, and maintenance.

2

Direct current blocking & signal transmission

They effectively isolate direct current while allowing ac signals to pass, which is widely used in telephone lines and amplifier control systems.

3

Noise and interference reduction

Isolation transformers significantly reduce noise and unwanted sound caused by grounding loops between audio amplifiers and speaker circuits.

4

Radio frequency signal isolation

They isolate high-frequency currents in rf circuits, ensuring proper transmission from rf amplifiers to antennas without interference from large circuit devices.

 

Specification of Isolation Transmitter

 

Parameter Category

Specific Parameters

AD Accuracy

22-bit

Input Impedance

<60Ω

Power Supply Voltage/Current

24V / 25mA

DA Accuracy

16-bit

Output Voltage/Load Resistance

0-5V, 1-5V / RL > 120KΩ

Output Current/Load Resistance

0-20mA, 4-20mA / RL ≤ 650Ω

Power Supply Voltage

DC

Power Supply Protection

Reverse polarity protection and ESD protection

Power Consumption

<2.7W (when powered by 24V, with 20mA output)

Measurement Accuracy (20℃)

0.001 FS

Temperature Drift (0℃~50℃)

50PPM/℃

Dielectric Strength

2000V AC for 1 minute (between input, output, and power supply)

Electromagnetic Compatibility

IEC61326-1

Operating Ambient Temperature

-20℃~50℃

Applicable On-site Equipment

2-wire and 3-wire transmitters

Model Selection & Dimensions

Dimensions (Width × Height × Depth): 17.5mm × 99mm × 114.5mm
Installation: 35mm DIN rail mounting

Model Selection Example

For example: If 1 channel of 0-10mA input, 1 channel of 4-20mA output, and output upper limit when input is open-circuited are required, the model code is:
DK3030-IN: 0MA10-OUT:4MA20-AM:1

 

Features of Isolation Transmitter

 

 

Compatible with 2-wire and 3-wire inputs. Transmission accuracy higher than 0.001. Low temperature drift with precise voltage source design. Data conversion accuracy: 20-bit AD resolution. One-input-to-two-output configuration supporting different output types.

 

Applications of Isolation Transmitter

 
 
01
 

Power and electrical distribution

In power plants and substations, they ensure that signals from sensors and field equipment are reliably transmitted to control systems without interference from surges or transients.

 
02
 

Medical and laboratory applications

In medical devices, isolation transmitters prevent dangerous electrical currents from the patient from reaching the user or the control electronics, ensuring safety during monitoring and treatment.

 
03
 

Industrial process control and automation

They shield sensitive Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCSs) from high-voltage noises and surges generated by variable frequency drives (VFDs) and other industrial equipment.

4-20ma Analog Input Isolated Transmitter

 

Packing and Shipping of Isolation Transmitter

 

Packing

Box+cushioned packaging

Shipping

Shipped by road, sea, rail

 

FAQ

 

Q: What is the main purpose of signal isolation?

A: Signal isolation prevents ground loops, reduces electrical noise, and protects control systems from high voltage, surge, and electromagnetic interference.

Q: What types of input and output signals do isolation transmitters support?

A: They typically support 4–20 mA, 0–10 V, thermocouple, RTD, frequency, and digital signals, with flexible input-output combinations.

Q: In which industries are isolation transmitters commonly used?

A: They are widely used in power systems, automation, chemical processing, instrumentation, environmental monitoring, and industrial control applications.

Q: What is an isolation transmitter used for?

A: An isolation transmitter is used to convert, isolate, and transmit electrical signals safely between field instruments and control systems, protecting equipment from interference and damage.

Q: How do I select the right isolation transmitter?

A: Selection should be based on signal type, isolation voltage rating, accuracy, response time, power supply, and installation environment.

As one of the leading isolation transmitter manufacturers and suppliers in China, we warmly welcome you to wholesale high-grade isolation transmitter made in China here from our factory. All customized products are with high quality and competitive price.

PT100 Resistance Signal Isolation Transmitter, High Precision Thermocouple Signal Isolation Transmitter, 0 10V DC Signal Isolation Transmitter