Product Name: Thermocouple/mV Isolated Input Module
Brand Name: Allen-Bradley
Model Number: 1746-INT4
Place of Origin: USA
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
Minimum Order Quantity |
1 Piece |
Price |
Contact for Jim |
Packaging Details |
Original new Factory Sealed |
Delivery Time |
3–7 Days |
Payment Terms |
T/T |
Shipping Method |
DHL / FedEx / UPS / TNT |
Supply Ability |
In stock |
| Product Name | Allen-Bradley 1746-INT4 Thermocouple/mV Isolated Input Module |
| Manufacturer | Allen-Bradley |
| Product Type | Thermocouple/mV Isolated Input Module |
| Part Number | 1746-INT4 |
| Place of shipment | Xiamen, China |
| Country of origin | USA |
| Number of Channels | 4 (Backplane and Channel-to-Channel Isolated) |
| Backplane Current Consumption | 110 mA @ 5 VDC; 85 mA @ 24 VDC |
| Backplane Power Consumption | 0.6 W Max (0.55 W @ 5 VDC, 2 W @ 24 VDC) |
| A/D Conversion Method | Sigma-Delta Modulation |
| Input Filtering | Analog Filter with Low-Pass Digital Filter |
| Normal Mode Rejection | >50 dB @ 50 Hz; >60 dB @ 60 Hz |
| Common Mode Rejection | >120 dB @ 50/60 Hz (1 kΩ Imbalance) |
| Channel Bandwidth | 8 Hz (-3 dB) |
| Isolation | 1000 V Transient or 150 VAC Continuous, Channel-to-Channel and Channel-to-Backplane |
| LED Indicators | 5 Green LEDs (4 Channel Status, 1 Module Status) |
| Recommended Cable (Thermocouple) | Shielded Twisted-Pair Thermocouple Extension Wire |
| Maximum Wire Size | Two 14 AWG (1.6 mm) Wires per Terminal |
| Maximum Cable Impedance | 150 Ω Loop Impedance (for <1 LSB Error) |
| Operating Temperature | 0 to 60°C (32 to 140°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Relative Humidity | 5–95% Non-Condensing |
| Cold Junction Compensation Accuracy | ±1.5°C (0 to 70°C) |
| Input Impedance | >10 MΩ |
| Temperature Scale | Selectable: °C or °F (0.1°C / 0.1°F Resolution) |
| Millivolt Scale | Selectable: 0.1 mV or 0.01 mV |
| Open-Circuit Detection Leakage Current | 20 nA Typical |
| Open-Circuit Detection Time | 5 s Typical |
| Input Step Response | 0–99.9% in 600 ms (Worst Case) |
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Sales |
|
Phone/Whatsapp |
|
Jim Pei |
The Allen-Bradley 1746-INT4 Thermocouple/mV Isolated Input Module is a high-precision 4-channel thermocouple and millivolt isolated input module designed for the SLC 500 automation platform. It features four isolated input channels, Sigma-Delta A/D conversion, channel-to-channel and backplane isolation, cold junction compensation, and selectable thermocouple and millivolt measurement capabilities for accurate temperature monitoring. The module delivers reliable acquisition of low-level analog signals while minimizing electrical interference and improving measurement stability. Its advanced signal processing and seamless integration with SLC 500 systems make it an ideal solution for process automation, furnace control, heat treatment, chemical processing, and manufacturing applications.
Thermocouple Temperature Measurement
Acquires temperature signals from thermocouple sensors, providing accurate process temperature monitoring for industrial control applications.
Millivolt Signal Acquisition
Measures low-level millivolt input signals from compatible sensors and instrumentation, supporting precise analog data collection.
Channel-to-Channel Isolation
Provides electrical isolation between each input channel and the backplane, reducing electrical interference and improving measurement reliability.
Cold Junction Compensation
Automatically compensates for reference junction temperature variations, ensuring accurate thermocouple measurements across changing environmental conditions.
Signal Filtering and Conversion
Utilizes Sigma-Delta A/D conversion with analog and digital filtering to minimize noise and deliver stable, high-quality measurement data.
SLC 500 System Integration
Integrates seamlessly with Allen-Bradley SLC 500 PLC systems, providing dependable temperature and millivolt signal acquisition for process automation, manufacturing, heat treatment, chemical processing, and industrial control applications.
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