The 1762-IT4 from Rockwell Automation is a MicroLogix 1200 series analog input module designed for temperature measurement using thermocouples or millivolt signals.
It is commonly used in MicroLogix 1100, 1200, and 1400 systems for industrial temperature monitoring and process control applications such as ovens, furnaces, packaging heat sealing, and HVAC systems.
Main Functions
The 1762-IT4 provides:
- 4 analog input channels
- Supports multiple thermocouple types (J, K, T, E, R, S, B, N)
- Supports low-level millivolt signals (mV inputs)
- Built-in cold junction compensation (CJC)
- High-resolution temperature measurement
It is designed specifically for temperature acquisition rather than general analog signals.
Supported Input Types
- Thermocouples: J, K, T, E, R, S, B, N
-
Millivolt ranges:
- ±50 mV
- ±100 mV
Each channel is independently configurable.
Technical Specifications (Including Size & Weight)
| Parameter | Specification |
|---|---|
| Model | 1762-IT4 |
| Series | MicroLogix 1200 I/O |
| Type | Thermocouple / mV input module |
| Input Channels | 4 |
| Input Types | Thermocouple + millivolt |
| Resolution | ~15–16 bit (high resolution temperature measurement) |
| Cold Junction Compensation | Built-in (internal CJC sensor) |
| Update Time | Configuration dependent (typical 100–500 ms range) |
| Isolation Voltage | ~500 V AC system isolation |
| Operating Temperature | 0°C to 55°C |
| Power Consumption | ~40 mA @ 5 V DC |
Physical Dimensions (L × W × H)
- 90 × 40 × 87 mm (standard MicroLogix 1762 module size)
- Height including mounting tabs: ~110 mm
Weight
- Approximately 0.22–0.34 kg
Key Features
- 4-channel thermocouple input module
- Supports multiple thermocouple standards
- Built-in cold junction compensation for accuracy
- High-resolution temperature measurement
- Electrical isolation for industrial noise protection
- LED status indicators per channel
- Compact DIN rail mounting
