AI835A accepts thermocouple and millivolt signals for process-temperature measurement in an ABB S800 I/O station. Seven channels are available for field measurements while the eighth channel supports the reference-junction function.
Supported thermocouple families include B, C, D, E, J, K, L, N, R, S, T and U. Selection and cold-junction handling must match the installed wiring design.
Compatibility boundary Use a permitted module termination unit: TU810, TU812, TU814, TU830 or TU833. Confirm the exact field connection before replacement.
MEASUREMENT CORE
AI835A technical profile
Product ID
AI835A / 3BSE051306R1
Channel structure
7 measurement + 1 reference junction
Input types
TC B, C, D, E, J, K, L, N, R, S, T, U; mV
Millivolt span
-30 to +75 mV
Resolution
15 bit
Rated isolation
50 V
Commissioning path
01
TC TYPE Confirm alloy pair
→
02
POLARITY Preserve plus/minus
→
03
RJ PATH Verify compensation
→
04
PROVE Test all channels
AMIKON / ESTABLISHED 2005
Twenty years of industrial spare-parts support.
Founded in Hong Kong, Amikon supports global users with PLC, HMI, DCS, industrial PC and VFD spares. Our experienced team helps resolve difficult part numbers and complex replacement needs so production can keep moving.
Return support: Contact us within 7 days if an issue is found. Keep the item in original condition and state the return reason. Return or replacement follows receipt and inspection; shipping costs remain with the buyer.
ENGINEERING QUESTIONS
AI835A 3BSE051306R1 FAQ
Can AI835A 3BSE051306R1 replace an AI830A? No direct assumption is valid. AI835A is for thermocouple/mV inputs; AI830A is intended for RTD and resistance inputs. Field wiring and channel configuration differ.
Why can AI835A 3BSE051306R1 show a uniform temperature offset? A reference-junction problem, wrong thermocouple type or copper wiring inserted into the sensor path can shift multiple channels together.
What must be captured before replacing AI835A 3BSE051306R1? Record every channel type, polarity, engineering range, compensation arrangement, termination unit, alarm state and unused-channel configuration.
Which termination units are appropriate for AI835A 3BSE051306R1? TU810, TU812, TU814, TU830 and TU833 are permitted choices. The exact selection must match the installed wiring and cabinet design.
How should AI835A 3BSE051306R1 be accepted after installation? Inject or simulate known low, mid and high values, confirm correct polarity and thermocouple type, verify reference-junction behavior and check channel diagnostics.