AI820

Product Overview

• Model: AI820

• Type: Analog Input Module

• Input Channels: 4

Technical Specifications

• Resolution: 14 bit + sign

• Input Impedance:

• Voltage mode, common mode: 200 kΩ ± 25%

• Voltage mode, normal mode: 800 kΩ ± 25%

• Current input: 250 Ω

• Isolation: Groupwise isolated from ground (RIV = 50 V)

• Under/Over Range: ± 15%

• Error: Max. 0.1%

• Temperature Drift:

• Voltage: Max. 70 ppm/°C

• Current: Max. 50 ppm/°C

• Input Filter (Rise time 0-90%): 40 ms

• Current Limiting: Transmitter power can be current limited by the MTU

• Maximum Field Cable Length: 600 meters (656 yards)

• Dielectric Test Voltage: 500 V a.c.

• Power Dissipation: 1.7 W

• Current Consumption (5 V Modulebus): 80 mA

• Current Consumption (24 V External): 70 mA

Diagnostics & Indicators

• LED Indicators: F(ault), R(un), W(arning)

• Supervision: Internal Power Supply

• Status Indicators: Module Error, Module Warning, Channel Error

Dimensions & Weight

• Width: 45 mm (1.77”)

• Depth: 102 mm (4.01”), 111 mm (4.37” with connector)

• Height: 119 mm (4.7”)

• Weight: 0.2 kg (0.44 lbs.)

---