Description
CT-3808: 8 CHANNELS ANALOG INPUT,THERMOCOUPLE
Product Feature:
◆ The module supports 8-channel thermocouple signal acquisition
◆ The module carries 8 analog LED indicators
◆ The module supports 9 kinds of conventional thermocouple temperature measurement type
◆ The internal bus of the module and field input adopts magnetic isolation
◆ The module input channel supports TVS overvoltage protection
◆ 24-bit ADC resolution (Σ-δ type)
◆ The module supports 8-channel thermocouple signal acquisition
◆ The module carries 8 analog LED indicators
◆ The module supports 9 kinds of conventional thermocouple temperature measurement type
◆ The internal bus of the module and field input adopts magnetic isolation
◆ The module input channel supports TVS overvoltage protection
◆ 24-bit ADC resolution (Σ-δ type)
Product Details
Technical Parameters
General parameters
| Power | Max.60mA@5.0Vdc |
| Isolation | I/O to internal bus: magnetic isolation (2.5KVrms) |
| Field Power | Not used |
| Wiring | I/O Wiring： Max.1.5mm²(AWG 16) |
| Mounting Type | 35mmDIN-Rail |
| Size | 115*14*75mm |
| Weight | 65g |
Environment Specification
| Operational Temperature |
-40~85℃ |
| Operational Humidity |
5%~95% RH(No Condensation) |
| Protection Class | IP20 |
Input Parameter
| Channel Number | 8 Channels |
| LED Indicator | 8 Input LED Indicators |
| Sensor Type | J / K/ E / T / S / R / B / N / C type thermocouples |
| M/S/F:Working Mode |
Modbus Master, Slave, Transparent Transmission |
| Acquisition Accuracy | ±0.3% Full Scale，@25℃ ±0.5% Full Scale，@-40~85℃ |
| Sampling Rate | 70ms/4 channel |
| Measuring Range℃ | |
| J Type | -210~1200℃ |
| K Type | -270~1370℃ |
| E Type | -270~1000℃ |
| T Type | -270~400℃ |
| S Type | -50~1760℃ |
| R Type | -50~1760℃ |
| B Type | 0~1820℃ |
| N Type | -270~1300℃ |
| C Type | 0~2320℃ |
| Data Format | 16-Bit Signed Integer (Integer) |
| Diagnostic Function | -32767: No thermocouple model selected (that is, the channel is disabled)
32766：open circuit disconnection 32767：Temperature overflow -32768：Temperature underflow |
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