features and benefits
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 ensure that the module will operate with higher reliability.
- 8-channel Thermistor Input
- User-defined Thermistor Types
- Dual Watchdog
specifications
CPU Module| Watchdog Timer | Module, Communication (Programmable) |
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Isolation| Intra-module Isolation | 2500 VDC |
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EMS Protection| EFT (IEC 61000-4-4) | ±4 kV for Power |
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| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal | ±8 kV Air for Random Point |
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LED Indicators| Status | 1 x Power and Communication |
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Analog Input| Channels | 8 |
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| Type | Thermistor |
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| Sensor 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 |
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| Resolution | 16-bit |
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| Accuracy | ±1% |
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| Sampling Rate | 8 Hz total |
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| Overvoltage Protection | 120 VDC |
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| Individual Channel Configuration | Yes |
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| Open Wire Detection | Yes |
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COM Ports| Ports | 1 x RS-485 |
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| Baud Rate | 1200 ~ 115200 bps |
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| Data Format | (N, 8, 1), (N, 8, 2), (O, 8, 1), (E, 8, 1) |
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| Protocol | DCON, Modbus RTU, Modbus ASCII |
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Power| Reverse Polarity Protection | Yes |
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| Consumption | 1 W Max. |
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| Powered from Terminal Block | 10 ~ 30 VDC |
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Mechanical| Dimensions (mm) | 52 x 98 x 27 (W x L x H) |
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| Installation | DIN-Rail Mounting |
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Environment| Operating Temperature | -25 ~ +75 °C |
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| Storage Temperature | -30 ~ +75 °C |
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| Humidity | 10 ~ 95% RH, Non-condensing |
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