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ABB AI820 3BSE008544R1 AI820 Analog Input 4 ch
The AI820 Analog Input Module has 4 differential, bipolar current/voltage inputs. Each channel can be either a voltage or current input. The current inputs can withstand an accidental maximum normal mode 30 V d.c. connection. To protect the current input circuit against dangerous input levels, that is, by accidentally connecting a 24 V source, the resistor rating of the 250W current sense resistors is about 5 Watts. This is intended only to temporarily protect one channel at a time.
The module distributes the external transmitter supply to each channel. This adds a simple connection (with extended MTUs) to distribute the supply to external 2 wire transmitters. There is no current limiting on the transmitter power terminals.
All 4 channels are isolated from the ModuleBus in one group. Power to the input stages is converted from the 24 V on the ModuleBus.
| Article number | 3BSE008544R1 |
| Type | Analog Input |
| Signal specification | -20..+20 mA, 0(4)..20 mA, -10..+10 V, 0(2)..10 V |
| Number of channels | 4 |
| Signal type | Bipolar differential |
| HART | No |
| SOE | No |
| Redundancy | No |
| High integrity | No |
| Intrinsic safety | No |
| Mechanics | S800 |
Detailed data
| Resolution | 14 bit plus sign |
| Input impedance | 200 kΩ ± 25% (voltage mode, common mode) 800 kΩ ± 25% (voltage mode, normal mode) 250 Ω (current input) |
| 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 Modulebus | 0 |
| Current consumption +24 V external | 70 mA |
Diagnostics
| Front LED’s | F(ault), R(un), W(arning) |
| Supervision | Internal Power Supply |
| Status indication of supervision | Module Error, Module Warning, Channel error |
Environment and certification
| CE mark | Yes |
| Electrical safety | EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201 |
| Hazardous Location | C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2 |
| Marine certification | ABS, BV, DNV, LR |
| Temperature, Operating | 0 to +55 °C (+32 to +131 °F), approvals are issued for +5 to +55 °C |
| Temperature, Storage | -40 to +70 °C (-40 to +158 °F) |
| Pollution degree | Degree 2, IEC 60664-1 |
| Corrosion protection | ISA-S71.04: G3 |
| Relative humidity | 5 to 95 %, non-condensing |
| Max ambient temperature | 55 °C (131 °F), for vertical mounting in compact MTU 40 °C (104 °F) |
| Protection class | IP20 according to IEC 60529 |
| Mechanical operating conditions | IEC/EN 61131-2 |
| EMC | EN 61000-6-4, EN 61000-6-2 |
| Overvoltage categories | IEC/EN 60664-1, EN 50178 |
| Equipment class | Class I according to IEC 61140; (earth protected) |
| RoHS compliance | DIRECTIVE/2011/65/EU (EN 50581:2012) |
| WEEE compliance | DIRECTIVE/2012/19/EU |
Compatibility
| Use with MTU | TU810, TU812, TU814, TU830, TU833 |
| Keying code | BB |
Dimensions
| Width | 45 mm (1.77”) |
| Depth | 102 mm (4.01”), 111 mm (4.37”) including connector |
| Height | 119 mm (4.7”) |
| Weight | 0.2 kg (0.44 lbs.) |
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(Modicon,SMC,SICK,NORGREN,Siemens,Ebmpapst etc.)
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