Analog Input Module | AI835A 3BSE051306R1 | ABB

In Stock Original New Unused ABB AI835A 3BSE051306R1 Analog Input Module

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Original New with One Year Warranty
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Description

Key Highlights
Manufacturer: ABB
Model Number: AI835A 3BSE051306R1
Product Type: Analog Input Module
Availability: In Stock
Condition: Original New
Country of Origin: Switzerland

Technical Specifications

The AI835A 3BSE051306R1 provides 8 differential input channels for Thermocouple/mV measurements. Measurement ranges configurable per channel are: -30 mV to +75 mV linear, or TC Types B, C, E, J, K, N, R, S and T, for AI835A also D, L and U.

Manufacturer	ABB
Article number	3BSE051306R1
Type	Analog Input
Signal specification	-30..75 mV linear; TC types B, C, D, E, J, K, L, N, R, S, T and U
Number of channels	8
Resolution	15 bits
Input impedance	> 1 MΩ
Isolation	Groupwise isolated from ground
Error	Max. 0.1%
Temperature drift	Typ. 5 ppm
Update cycle time	280 + 80 * (number of active channels) ms at 50 Hz; 250 + 70 * (number of active channels) ms at 60 Hz
Maximum field cable length	600 meters (656 yards)
CMRR, 50Hz, 60Hz	120 dB
NMRR, 50Hz, 60Hz	> 60 dB
Rated insulation voltage	50 V
Dielectric test voltage	500 V a.c.
Current consumption +5 V Modulebus	75 mA
Current consumption +24 V Modulebus	50 mA

Troubleshooting & Commissioning Checklist

Verify MTU Alignment: Ensure the module is seated firmly onto a compatible Termination Unit (e.g., TU810, TU830).
Confirm Power Quality: Measure the 24 VDC supply at the MTU to ensure it falls within the acceptable 19.2 to 30 VDC range.
Inspect Grounding: Confirm the DIN rail is properly grounded to mitigate electrical noise on sensitive mV signals.
Check Dip Switches: Verify the module position address on the backplane matches your Control Builder configuration.
Inspect Wiring Shields: Ensure thermocouple extension wires are shielded and grounded at one end only to prevent ground loops.

Signal Integrity & Noise Mitigation

Twisted & Shielded Cable: Always use twisted-pair thermocouple extension wire. Run these signals in dedicated, grounded low-voltage cable trays.
Separation Defeats EMI: Keep sensor wires at least 30 cm (12 inches) away from high-voltage AC cables, variable frequency drives (VFDs), and switching relays.
The Single-Ground Rule: Connect the cable shield to the ground terminal only at the MTU side. Grounding both ends creates ground loops that destroy millivolt accuracy.

Technical FAQ

Q:What makes the AI835A different from the older AI835 version?

A:The AI835A expands the firmware's capability to process more specialized industrial temperature curves. While both modules support standard thermocouple types (B, C, E, J, K, N, R, S, T), the AI835A variant adds native compatibility for Types D, L, and U.

Q:What is the internal resolution of the A/D converter?
A:The analog-to-digital (A/D) converter uses an internal architecture providing a resolution of 15 bits.

Q:Can I connect standard 4-20mA or 0-10V process signals directly to this card?
A:No. The AI835A is built purely for low-voltage millivolt ranges spanning from -30 mV to +75 mV linear. Wiring high-level current loops or 10V signals directly to this hardware will trip over-range errors and risks permanently damaging the channel input isolation.

Q:What is the maximum allowable field cable run?

A:The hardware supports a maximum field cable length of 600 meters (656 yards). Beyond this limit, wire resistance and signal degradation across the millivolt curve will introduce unacceptable process measurement drift.

Q: Do you supply brand-new, original parts or second-hand refurbished items?
A: Our stock consists of Original New items; all products undergo quality inspection to ensure they are fully functional.

Q: What guarantees are included with the shipment?
A: All items in stock are tested by engineers, packed in professional ESD packaging, and shipped via express logistics with a global delivery time of 24–48 hours.

Q: How long does global shipping take?
A: Stock items are typically dispatched within 24 hours. Shipments are sent via DHL or FedEx Express, taking approximately 3–5 days to reach Asia, 4–6 days to Europe and the Middle East, and usually arriving within a week in major industrial regions worldwide.

Q: If the model I need is not listed on the website, can I request a quote?
A: Yes. We hold over 200,000 SKUs of industrial spare parts in stock, and many long-tail models are not listed in full. You can send us an RFQ (Request for Quote) directly, and we will provide wholesale pricing promptly.

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