In the field of industrial measurement, accurately acquiring temperature data often involves cumbersome signal processing and complex system integration. TOSUN's newly launched TS3004 High-Performance Thermocouple Temperature Acquisition Deviceby leveragingIntegrated design featuring 8-channel K-type thermocouple inputs, built-in high-precision cold junction compensation, and direct Celsius output.TS3004 dramatically simplifies the signal chain, eliminating the need for manual calculations and external compensation.Achieve true “plug-and-play functionality”.

Products
TS3004 is a high-performance thermocouple temperature acquisition device launched by TOSUN.Built-in high-precision cold junction compensation circuit supports digital processing of 8-channel K-type thermocouple signals, directly outputting temperature data in degrees Celsius (℃). The measurement range spans -200°C to 1370°C, with input terminals capable of withstanding ±45V overvoltage surges.

The device utilizes a D-Sub 9-pin interface for communication with other CAN bus type devices. When paired with the powerful TSMaster software, it supports loading DBC database files, enabling convenient monitoring, analysis, and simulation of CAN FD bus data.
Product Features.
High-precision measurement: Built-in cold junction compensation, direct output in degrees Celsius
- Built-in cold junction compensation, directly outputs temperature in degrees Celsius
- Supports temperature measurement from -200°C to 1370°C, withstands ±45V overvoltage
- The standard version supports K-type thermocouples (J, N, R, S, T, E, and B types available upon request).
- Supports 50 Hz line frequency filtering (60 Hz available upon request), featuring sensitive thermocouple fault detection.
Select operating mode via the 4-digit hardware ID DIP switch:
- Default Mode (ID 0–14)
After power-up, the CAN baud rate is fixed at 1 Mbps. The device supports configuration messages sent via communication commands. Upon receiving a message, the corresponding configuration parameters are stored in memory. - Custom Mode (ID 15)
Upon power-up, the system automatically loads the most recently stored CAN configuration parameters (such as baud rate, filter settings, etc.). Configuration messages cannot be sent via communication commands in this mode.
Technical Parameters
Specifications
| Basic parameters | |
| Connector | Standard D-Sub, 9-pin |
| Electricity Supply | Phoenix Terminal Power Supply |
| Power Wastage | 1.5 W |
| ESD Protection | Contact discharge rating: 4 kV Air discharge rating: 8 kV |
| Housing Material | metals |
| Sizes | 150 × 97.6 × 72 mm |
| Weights | 422.6 g |
| Operating Temperature Range | To Be Announced |
| Operating Humidity Range | 10%~90% (no condensation) |
CAN (Default Mode)
| Basic parameters | |
| CAN Connection Standard | High-Speed CAN Connection (Compliant with ISO 11898-2 Specification) |
| Supported Protocols | Fully supports the CAN protocol (compliant with ISO 11898-1 specifications) |
| CAN Baud Rate | Fixed 1 Mbps communication baud rate |
| Sampling point | 82.5% |
| CAN Frame Data Length | Maximum length supports 8-byte extended data frames |
| Terminating Resistors | The CAN channel includes a built-in 120Ω terminating resistor, which can be configured via hardware DIP switches. |
CAN (Custom Mode)
| Basic parameters | |
| CAN Connection Standard | High-Speed CAN Connection (Compliant with ISO 11898-2 Specification) |
| Supported Protocols | Fully supports CAN and CAN FD protocols (compliant with ISO 11898-1 specifications) |
| CAN Baud Rate | Adjustable from 125 kbps to 1 Mbps |
| CAN Frame Data Length | Up to 8 bytes |
| CAN FD Baud Rate | Adjustable from 125 kbps to 8 Mbps |
| CAN FD Frame Data Length | Supports 3-byte and 16-byte data frames, supports BRS frame type |
| Terminating Resistors | The CAN channel features a built-in 120 Ω termination resistor, configurable via hardware DIP switches. |
| Bus-Off Self-Recovery | Automatic recovery is disabled by default. Self-recovery commands can be issued in default mode. |
Functionality
| Basic parameters | |
| Collect K-type thermocouple temperature | Digitally process the acquired signals and output in degrees Celsius (℃). |
| Cold-end compensation | Built-in cold junction compensation |
| Switch work mode | Hardware DIP Switch Settings: Default Mode, Custom Mode |
| Fault Management | When multiple fault codes are present, display the fault code with the highest value. |
| Overvoltage Protection | ±45 V |
| Interference resistance | 50 Hz (60 Hz available upon request) |
| Temperature measurement range | -200°C to 1370°C |
| Linear error | To Be Announced |
* The device supports ±45 V input overvoltage protection. If interference exceeding ±45 V is introduced in the operating environment, contact us to modify the circuit for enhanced protection capability (circuit modification will increase offset voltage, affecting measurement accuracy).
Parameters
Power Supply Specifications
| Parameters | Test Conditions | Minimum Value | Typical Value | Maximum Value | Unit |
| Operating Voltage | Phoenix Terminal Power Supply | 9 | 12.0 | 36 | V |
| Power Wastage | Phoenix Terminal Power Supply | — | 1.5 | — | W |
CAN Interface Specifications
| Parameters | Test Conditions | Minimum Value | Typical Value | Maximum Value | Unit |
| Terminating Resistors | Enable | — | 120 | — | Ω |
| Disable | — | ∞ | — | — | |
| Isolation Withstand Voltage | Insulation Resistance Tester | 2500 | — | — | VDC |
EMC (Electromagnetic Compatibility) Performance Parameters
| Test Items | Standard | Test Conditions | Level | Unit |
| ESD | IEC 61000-4-2 | Contact Discharge | ±4 | kV |
| Air Discharge | ±8 | kV | ||
| EFT | IEC 61000-4-4 | Group Pulse | ±2 | kV |
Get an Early Look! Apply Now for the TS3004 New Product Trial
Simplify temperature acquisition with the new TS3004 now available for trial. Experience 8-channel, direct-read °C, and ±45V overvoltage protection for one-stop high-precision temperature measurement. We invite you to participate.
Apply for a trial
If you want to know more about TOSUN hardware products, you can fill out the application form and we will contact you as soon as possible.








