SC3076 Temperature Transmitter (dual-channel)
Dual-channel temperature transmitter: two thermocouple/RTD signals are each isolated and transmitted; the dual channels support passive output and RS485 communication.
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Dual-channel configuration: two thermocouple/RTD signals are each isolated and converted to current/voltage signals; the dual channels support passive output. Independent power supply is required, with three-port isolation between input, output and power, and online fault self-diagnostics.
Note:Three-port isolation between input, output and power. Independent 24V DC (or 220V AC) power supply; two inputs each connected as thermocouple or RTD; two outputs as 0/4–20mA (dual channels support passive) or voltage signals, with RS485 communication support. Configurable via PC or handheld programmer. Module indicators: green power indicator, red fault signal. All terminals are hot-swappable. Refer to the silkscreen on the module side for specific terminal numbers.
Ordering information:
- When ordering, specify the two sensor types, two output signals and power supply method.
- Factory example: two PT100 inputs, two 1-5V outputs, model SC3076-22.
| Parameter Name | Technical Specifications |
|---|---|
| Power supply and power consumption | |
| Power Supply | 18V DC～60V DC (independently powered products); 85V AC～265V AC (90V DC～360V DC) |
| Power consumption | ≤1.2W (24V, dual-channel full-load output); ≤2.5W (220V, dual-channel full-load output) |
| Input characteristics | |
| Input Signal | Thermocouples such as K, E, S, B, J, T, R, N; RTDs such as Pt100, Cu100, Cu50, BA1, BA2 |
| Lead resistance | ≤20Ω/wire (RTD) |
| Output and load | |
| Output Signal | Current: 0/4～20mA (dual channels support passive), 0～10mA; Voltage: 0/1～5V, 0～10V |
| Permissible load | 0/4～20mA: RL≤550Ω, 0～10mA: RL≤1.1kΩ; 0/1～5V: RL≥1MΩ, 0～10V: RL≥2MΩ |
| Accuracy and response | |
| Compensation accuracy | 1℃ (compensation temperature range: -20℃ to +60℃) |
| Temperature drift | 30ppm/℃ |
| Response time | ≤500ms |
| Isolation and electromagnetic compatibility | |
| Electromagnetic compatibility | IEC 61326-3-1 |
| Dielectric strength | ≥1500V AC (between input/output/power supply) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| Communication and Transmission | |
| Communication Parameters | RS-485; MODBUS-RTU, distance ≤1000m, nodes ≤32 |
| Baud Rate | ≤19.2kbps |
| Environmental and Mechanical | |
| IP Protection | IP20 |
| Operating Temperature | -20℃～+60℃ |
| Storage Temperature | -40℃～+80℃ |
| Dimensions | 17.8mm×110mm×117mm (W×H×D) |
| Product Selection Code | |
| Input Signal 1 (Code R) | RTD Input |
| Input Signal 1 (Code T) | Thermocouple Input |
| Input Signal 1 (Code Default) | Default is full-function RTD and thermocouple input |
| Input Signal 2 (Code Default) | Default is full-function RTD and thermocouple input |
| Input Signal 2 (Code R) | RTD Input |
| Input signal 2 (code T) | Thermocouple Input |
| Output signal 1 (code 1) | 4-20mA (default is 4-20mA) |
| Output signal 1 (code 2) | 1～5V |
| Output signal 1 (code 3) | 0～10mA |
| Output signal 1 (code 4) | 0～5V |
| Output signal 1 (code 5) | 0～10V |
| Output signal 1 (code 6) | 0～20mA |
| Output signal 2 (code 1) | 4-20mA (default is 4-20mA) |
| Output signal 2 (code 2) | 1～5V |
| Output signal 2 (code 3) | 0～10mA |
| Output signal 2 (code 4) | 0～5V |
| Output signal 2 (code 5) | 0～10V |
| Output signal 2 (code 6) | 0～20mA |
| Power supply method (code default) | Default 24VDC power supply |
| Power supply (code A) | 220VAC power supply |
- Dual-channel two-in two-out, two temperature signals isolated and transmitted separately
- Dual-channel 4-20mA supports passive output, with external loop power supply
- RS485 communication, MODBUS-RTU, distance ≤1000m, nodes ≤32
- Cold junction compensation accuracy 1°C, compensation range -20°C to +60°C
- Centralised transmission of dual temperature measurement points (e.g. equipment inlet and outlet temperatures)
- 17.8 mm width, DIN rail mounting
Centralised transmission of dual temperature measurement points
Centralised transmission of dual temperature measurement points (e.g. equipment inlet and outlet temperatures); for applications requiring passive output with external loop power supply
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
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