Features:
- Signal specification: -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U
- Number of channels: 8
- Signal type: See table
AI843 integrates 8 channels into the ABB S800 platform.
Assess signal limits, isolation, update time and diagnostics as one design.
Use a compatible MTU and verify the field loop before commissioning AI843.
Verified resources for ABB AI843:
Signal Data:
- Signal specification: -30..75 mVlinear, TC types B, C, E, J, K, L, N, R, S, T and U
- Number of channels: 8
- Signal type: See table
Apply official AI843 limits to the complete field circuit.
Diagnostics:
- F(ault), R(un), W(arning)
- Module error: reference channels outside limits, power supply low Channel error: open-circuit, CJ channel error (ch 8): out of range <-40°C (-40°F) and >100°C (212°F)Junction channel) Channel error Linear: none
- Module Error, Module Warning, Channel error
Resolve all AI843 diagnostics before operation.
Compatibility:
- Compatible MTUs: TU818, TU830, TU833, TU842, TU843
- Verify module keying
- Confirm controller support
Match AI843 to an approved ABB S800 configuration.
Installation Check:
- Check signal and field power
- Verify MTU and channel mapping
- Perform end-to-end tests
Document testing after installing AI843.