DSAI146
Pt100 Analog Input Unit · 3BSE007949R1 · 3-wire
Lifecycle note: Preserve the installed S100 I/O configuration. Record Pt100 channel assignments, temperature ranges and terminal wiring before replacing the input unit.
ItemNO:
3BSE007949R1Product Condition
Original New with One Year WarrantyParts Available
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+86 153 5940 8275Pt100 Analog Input Unit · Advant Master S100 I/O
ABB DSAI146, order 3BSE007949R1, is a Pt100 analog input unit in the Advant Master S100 I/O family. It provides 31 measuring channels and one reference channel for three-wire resistance-temperature sensors. Its function is temperature acquisition, with galvanic isolation between channel and system.
ABB lists 12-bit-plus-sign resolution and measurement ranges of -100 to +320 °C and -200 to +640 °C in its S100 I/O technical overview. The Compact Control Builder product guide also lists -40 to +40 °C; confirm the selected range in the installed controller project. The unit measures 324 mm in depth, 22.5 mm in height and 234 mm in width, with a net weight of 0.4 kg.
For replacement planning, capture the nameplate, hardware revision, slot position and terminal-unit wiring. Compare the configured Pt100 channel list and temperature scaling with the approved project before commissioning. Receiving inspection should confirm the complete order number and connector condition; functional acceptance should compare temperature readings with a documented reference.
| Manufacturer | ABB |
|---|---|
| Model / order number | DSAI146 / 3BSE007949R1 |
| Product type | Pt100 analog input unit |
| I/O family | Advant Master S100 I/O |
| Measuring channels | 31 |
| Reference channel | 1 |
| Sensor / connection | Pt100 RTD / 3-wire |
| Resolution | 12 bits + sign (S100 I/O technical overview) |
| Temperature ranges | -100 to +320 °C; -200 to +640 °C; -40 to +40 °C listed in Compact Control Builder guide |
| Isolation | Galvanic isolation between channel and system |
| Net dimensions (D × H × W) | 324 × 22.5 × 234 mm |
| Net weight | 0.4 kg |
| Kit membership | DSAI 146K01: 3BSE009679R1; DSAI 146K02: 3BSE019913R1 |
| Customs tariff number | 85389091 |
Preserve Pt100 channel assignments, configured temperature ranges and three-wire terminal connections before replacement. Confirm DSAI146 and order number 3BSE007949R1 against the installed nameplate.
No. ABB distinguishes 31 measuring channels from one reference channel. Keep the reference function separate from the process-point list when reconciling cabinet wiring and controller configuration.
Match the three-wire sensor arrangement to the approved terminal drawing. Identify every lead and channel before reconnection; do not assume an existing two-wire or four-wire arrangement can be connected unchanged.
The controller configuration determines how a reading is interpreted. Preserve the installed range and engineering-unit scaling, then compare a known temperature reference with the displayed value before returning the loop to service.
No. ABB specifies galvanic isolation between channel and system. That wording does not establish individual channel-to-channel isolation; use the applicable wiring documentation for grounding and potential-difference checks.
ABB lists net dimensions of 324 mm depth, 22.5 mm height and 234 mm width, with 0.4 kg net weight. Use these as supporting checks alongside the nameplate and connector arrangement, not as a substitute for the order number.
No. ABB lists DSAI146 within kits 3BSE009679R1 and 3BSE019913R1. Specify whether the requirement is the 3BSE007949R1 input unit or a complete kit and confirm the supplied contents.
Record the original channel map, terminal assignments, selected temperature ranges and reference readings. After installation, document the comparison for each used process point under the approved commissioning procedure.
Require DSAI146 and 3BSE007949R1 on the quotation and nameplate photographs. Compare hardware revision and terminal connections with the installed unit; a related S100 product name alone does not demonstrate interchangeability.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Official PDF extract: DSAI146 / 3BSE007949R1 — Sales PLC Cover & ABB Documentation. File size is below 1 MB; verify the exact installed hardware and configuration before use.
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