Product Overview

The Allen-Bradley 1738-IE4CM12 ArmorPoint 4-Channel Analog Input Module provides high-precision signal acquisition for industrial automation. Designed for robust operation, it supports multiple current input ranges and delivers reliable, fast updates for process control applications.

Its 4 single-ended, non-isolated inputs ensure accurate monitoring of current signals, while the reinforced insulation and compact design offer both safety and space efficiency.

Key Features

• Number of Inputs: 4

• Input Type: Single-ended, non-isolated

• Input Signal Range: 4–20 mA

• Absolute Accuracy: 0.1% Full Scale @ 25°C

• Accuracy Drift: 30 ppm/°C

• Digital Filter Time Constant: 0–10,000 ms (default = 0 ms)

• Input Conversion Type: Sigma Delta

• Input Impedance/Resistance: 60 Ω

• Resolution: 16-bit, 0.32 μA/count

• Input Step Response: 6.25–50 ms depending on notch filter

• Update Rate: 25–200 ms depending on notch filter

• Data Format: Signed integer

Notch Filter Options

Power and Connectivity

• External DC Supply Voltage: 24V DC nominal, 10–28.8V DC range

• External DC Supply Current: 15 mA @ 24V DC

• PointBus Current: 75 mA @ 5V DC

• Power Dissipation: 0.6 W max

• Thermal Dissipation: 2.0 BTU/hr max

Mechanical Specifications

• Dimensions (HxWxD): 71.6 × 33.1 × 111.6 mm (2.82 × 1.30 × 4.39 in)

• Weight: 290 g (10.2 oz)

• Enclosure Rating: IP65/66/67/69K

• Mounting Screw Torque: M4 Aluminum: 0.85 Nm, Steel: 1.81 Nm

Indicators

• Module Status LED: 1 green/red

• Network Status LED: 1 green/red

• Input Status LEDs: 4 green/red

Isolation & Safety

• Isolation Voltage: 50V continuous, reinforced insulation

• Tested: 1250V AC, 60 s

• Channel Isolation: None

Environmental Ratings

• Operating Temperature: -20…60 °C (-4…140 °F)

• Non-Operating Temperature: -40…85 °C (-40…185 °F)

• Relative Humidity: 5–95% non-condensing

• Vibration (Operating): 5 g @ 10–500 Hz

• Shock (Operating): 30 g, Non-operating: 50 g

EMC & Certifications

• ESD Immunity: 6 kV contact, 8 kV air

• Radiated RF Immunity: 3–10 V/m across 80 MHz–2.7 GHz

• EFT/B Immunity: ±3 kV, 5 kHz on signal ports

• Surge Immunity: ±1 kV DM, ±2 kV CM

• Certifications: CE, C-Tick, EN 61326, EN 61000-6-2/4, EN 61131-2