tM-TH8
8-channel Isolation Thermistor Input Module with High Voltage Protection. Communicable over RS-485, DCON, Modbus RTU, Modbus ASCII. Supports operating temperatures between -25°C ~ +75°C (-13F ~ 167F).
Features
The tM-TH8 is an 8-channel isolated thermistor input module that can be used for measuring temperatures via a thermistor. Many types of thermistors are supported and user-defined types can be added by specifying the Steinhart coefficients, if necessary. The added 2500 VDC intra-module isolation and 120 VDC overvoltage protection for the thermistor on the tM-TH8 ensures that the module will operate with higher reliability.
- 8-channel Thermistor Input
- 120 VDC Overvoltage Protection
- Resolution: 16 bits
- User-defined Thermistor Types
- 2 kV ESD and 4 kV EFT Protecton
- Dual Watchdog
- 2500 VDC Intra-module Isolation
- Wide Operating Temperature Range: -25°C ~ +75°C
Applications
- Industrial Automation
- Industrial Machinery
- Building Automation
- Food and Beverage Systems
- Semiconductor Fabrication
- Control Systems
Specifications
I/O Specifications
Analog Input | |
Input Channels | 8 |
Types | Thermistor |
Thermistor Type | Precon ST-A3, Fenwell U, YSI L100, YSI L300, YSI L1000, YSI B2252, YSI B3000, YSI B5000, SI B6000, YSI B10000, YSI H10000, YSI H30000, User-defined |
Resolution | 16-bit |
Sampling Rate | 8 Hz total |
Accuracy | +/-1% |
Overvoltage Protection | 120 VDC |
Open Wire Detection | Yes |
System Specifications
Communication | ||
Interface | RS-485 | |
Format | (N, 8, 1), (N, 8, 2), (O, 8, 1), (E, 8, 1) | |
Baud Rate | 1200 ~ 115200 bps | |
Protocol | DCON, Modbus/RTU, Modbus/ASCII | |
Dual Watchdog | Yes, Module (2.3 seconds), Communication (Programmable) | |
LED Indicators | ||
Power | 1 LED as Power Indicator | |
Isolation | ||
Intra-module Isolation, Field-to-Logic | 2500 VDC | |
EMS Protection | ||
ESD (IEC 61000-4-2) | 2 kV Contact for Each Terminal | |
3 kV Air for Random Point | ||
EFT (IEC 61000-4-4) | +/-4kV for Power | |
Power Requirements | ||
Reverse Polarity Protection | Yes | |
Powered from Terminal Block | Yes, 10 ~ 30 VDC | |
Consumption | 1 W Max. | |
Mechanical | ||
Dimensions (W x L x H) | 52 mm x 98 mm x 27 mm | |
Installation | DIN-Rail Mounting | |
Environment | ||
Operating Temperature | -25 XC ~ +75 °C | |
Storage Temperature | -30 XC ~ +75 °C | |
Humidity | 10 ~ 95% RH, Non-condensing |