AI845
AI845 Analog Input S/R HART 8 ch
Overview
Description
The AI845 Analog Input Module for single or redundant applications. The module has 8 channels. Each channel can be either a voltage or current input when MTU TU844 or TU845 is used, when other MTUs are used all channels become voltage or current inputs.
Key Benefits
- 8 channels for 0...20 mA, 4...20 mA, 0...5 V or 1...5 V d.c., single ended unipolar inputs
- Single or redundant operation
- 1 group of 8 channels isolated from ground
- 12 Bit resolution
- Current limited transmitter supply per channel
- Advanced on-board diagnostics
- HART pass-through communication
Specifications
- Dimensions
- Width 45 mm Depth 102 mm, 111 mm including connector Height 119 mm Weight 0.23 kg
Variant
- Input impedance
- 10 MΩ (voltage input) 250 Ω (current input)
- Isolation
- Groupwise isolated from ground
- Under/over range
- 0 / +15% (0..20 mA, 0..5 V), -12.5% / +15% (4..20 mA, 1..5 V)
- Error
- Max. 0.1%
- Temperature drift
- Max. 50 ppm/°C
- Input filter (rise time 0-90%)
- 290 ms
- Update cycle time
- 10 ms
- Current limiting
- Built in current limited transmitter power
- Maximum field cable length
- 600 meters (656 yards)
- Max input voltage (non destructive)
- 11 V d.c.
- NMRR, 50Hz, 60Hz
- > 40 dB
- Rated insulation voltage
- 50 V
- Dielectric test voltage
- 500 V a.c.
- Power dissipation
- 3.5 W
- Current consumption +5 V Modulebus
- 100 mA
- Current consumption +24 V Modulebus
- 50 mA
- Current consumption +24 V external
- Max. 265 mA (22 mA + transmitter current * 1.32)