AI820 Differential Analog Input Module
Manufacturer: ABB — S800 I/O
Part number: AI820
Category: Electrical
4-channel differential bipolar analog input module, ±20 mA / ±10 V / ±5 V, 14-bit + sign resolution.
Description
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, the 250 ohm current sense resistors are rated at about 5 Watts (intended only to temporarily protect one channel at a time). 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. The module distributes the external transmitter supply to each channel for simple connection to external 2-wire transmitters with extended MTUs.
Applications
- Bipolar signal measurement
- differential pressure measurement
- strain gauge monitoring
- laboratory instrumentation
- precision process control
Industries
- Oil & Gas
- Power Generation
- Chemical
- Pharmaceutical
- Metals & Mining
- Research & Development
Available on request — pricing is quoted per enquiry. Request a quotation.