tM-TH8 Isolated Thermistor Input Module, 8-Channel, RS-485
8-channel isolated thermistor input module with 2500 VDC intra-module isolation, 120 VDC overvoltage protection and RS-485 communication using DCON or Modbus.
- 8 isolated thermistor input channels with 16-bit resolution and ±1% accuracy
- Many standard thermistor types plus user-defined types via Steinhart coefficients
- 2500 VDC intra-module isolation and 120 VDC overvoltage protection
- Individual channel configuration and open wire detection
- 1 x RS-485 port with DCON, Modbus RTU and Modbus ASCII, 1200 ~ 115200 bps
- Dual watchdog: module and communication, programmable
1.053,86 kr. pr. stk.
| 1–9 stk. | 1.053,86 kr. | |
|---|---|---|
| 10–30 stk. | 1.023,97 kr. | −3 % |
| 31+ stk. | 1.001,54 kr. | −5 % |
Produktinformation "tM-TH8 Isolated Thermistor Input Module, 8-Channel, RS-485"
The tM-TH8 CR is an 8-channel isolated thermistor input module for measuring temperature with thermistor sensors. It supports a wide range of standard thermistor types, and engineers can add their own by entering Steinhart coefficients where a standard type does not fit.
Each channel is isolated from the others and protected against overvoltage on the thermistor wiring, which suits installations where sensor cabling is exposed to electrical disturbance. Channels can be configured individually, and open wire detection flags a broken sensor connection.
Communication is via a single RS-485 port supporting DCON, Modbus RTU and Modbus ASCII, with selectable baud rates from 1200 to 115200 bps. Dual watchdog functions for the module and communication help keep the system in a known state. The module mounts on a DIN rail and is powered from 10 ~ 30 VDC.
Applications
- Industrial automation
- Industrial machinery
- Building automation
- Food and beverage systems
- Semiconductor fabrication
- Control systems
| Product type: | Analog Input Module |
|---|---|
| Interface: | RS-485 |
| Protocol: | DCON, Modbus ASCII, Modbus RTU |
| Analog inputs: | 8 |
| Ports: | 1 |
| Isolation: | 2500 VDC |
| Power input: | 10 ~ 30 VDC |
| Operating temperature: | -25 ~ +75 °C |
| Mounting: | DIN-rail |
Specifikationer
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
| Intra-module Isolation | 2500 VDC |
| EMS Protection | |
| EFT (IEC 61000-4-4) | ±4 kV for Power |
| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| LED Indicators | |
| Status | 1 x Power and Communication |
| Analog Input | |
| Channels | 8 |
| Type | Thermistor |
| 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 |
| Resolution | 16-bit |
| Accuracy | ±1% |
| Sampling Rate | 8 Hz total |
| Overvoltage Protection | 120 VDC |
| Individual Channel Configuration | Yes |
| Open Wire Detection | Yes |
| COM Ports | |
| Ports | 1 x RS-485 |
| Baud Rate | 1200 ~ 115200 bps |
| Data Format | (N, 8, 1), (N, 8, 2), (O, 8, 1), (E, 8, 1) |
| Protocol | DCON, Modbus RTU, Modbus ASCII |
| Power | |
| Reverse Polarity Protection | Yes |
| Consumption | 1 W max. |
| Powered from Terminal Block | 10 ~ 30 VDC |
| Mechanical | |
| Dimensions (mm) | 52 x 98 x 27 (W x L x H) |
| Installation | DIN-Rail Mounting |
| Environment | |
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +75 °C |
| Humidity | 10 ~ 95% RH, Non-condensing |
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