Original-System Compatibility
Requires an IMAMM03 master and connects through the slave expander bus. ABB/Bailey documentation identifies NTAI03, NTAI04 and NIAI03 termination hardware for the RTD field wiring.
Brand Name:
ABB
Model Number:
IMASM03
The IMASM03 is an eight-channel analog slave module for isolated three-wire RTD inputs. It operates under an IMAMM03 Analog Master Module and converts one group of eight temperature signals for the INFI 90 process-control system.
The IMASM03 is an eight-channel analog slave module for isolated three-wire RTD inputs. It operates under an IMAMM03 Analog Master Module and converts one group of eight temperature signals for the INFI 90 process-control system.
| 01Input channels | 8 isolated three-wire RTD inputs |
|---|---|
| 02Input groups | One group; slave address 0 to 7 |
| 03Supported RTDs | 100 Ω platinum IPTS-68; 100 Ω platinum U.S. Laboratory, U.S. Industrial and European; 120 Ω chemically pure nickel; 53 Ω Chinese copper |
| 04Common-mode voltage | ±250 V maximum |
| 05Normal-mode rejection | -80 dB at 60 Hz minimum |
| 06Common-mode rejection | -120 dB at 60 Hz minimum |
| 07Accuracy with master | 0.05% of 200 mV with external calibration; 0.125% with internal calibration |
| 08+5 VDC power | 400 mA maximum; 2.0 W maximum |
| 09+15 VDC power | 80 mA maximum; 1.2 W maximum |
| 10-15 VDC power | 45 mA maximum; 0.7 W maximum |
| 11+24 VDC field power | +12/-10%, 5 mA; 0.015 W from termination unit/module |
| 12Termination | NTAI03, NTAI04 or NIAI03 |
| 13Mounting | One INFI 90 Module Mounting Unit slot |
| 14Operating temperature | 0 to 70°C (32 to 158°F) |
| 15Humidity | 0 to 95% RH to 55°C; 0 to 45% RH at 70°C, noncondensing |
| 16Altitude | Sea level to 3 km (1.86 mi) |
| 17Certification | CSA certified for ordinary, nonhazardous locations |
Requires an IMAMM03 master and connects through the slave expander bus. ABB/Bailey documentation identifies NTAI03, NTAI04 and NIAI03 termination hardware for the RTD field wiring.
ABB evolution information places the AMM/ASM family on an engineered migration path to the IMASI23 Universal Analog Input Module. This requires an MFP or later controller and configuration changes; IMASI23 is not a direct slot-for-slot replacement.
Original manufacturer source for IMASM03 RTD types, accuracy, power, termination, setup, calibration and maintenance.
AMM/ASM evolution to IMASI23 and the controller and configuration requirements for migration.
Pre-shipment check, antistatic protection and reinforced packing.
Prompt review under the written order terms with fault evidence.
Covers confirmed supply defects during the agreed period.
Part-number, revision and system checks before dispatch.
Send the Part Number, Quantity, Destination, Required Date and Machine/System Model. A clear nameplate photo helps confirm the request.
These models are separate sourcing references, not stated replacements for IMASM03. Compatibility and availability must be confirmed independently.
Technical statements are limited to verified ABB/Bailey manufacturer documentation. Installation must follow the plant safety procedure and the documentation for the installed system revision.
Send your inquiry directly to us