Honeywell 8C-PAIMA1 Low Level Analog Input Module
Configured for low-level millivolt temperature signal acquisition in Experion C300 controller networks, the Honeywell 8C-PAIMA1 (8C-PAIMA1 Low Level Analog Input Module) provides direct physical/electrical execution. The module converts analog signals from Resistance Temperature Detectors (RTD) and Thermocouples (TC) into digital temperature data values transmitted directly across the Experion Series C I/O backplane bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8C-PAIMA1 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 3 kg (Shipping Weight) |
| Dimensions | Standard Series C I/O module form factor |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | System backplane powered via I/O Termination Assembly |
| Module Type | Low Level Analog Input Module (RTD & TC) |
| Input Signals | Resistance Temperature Detectors (RTD) and Thermocouples (TC) |
| Channel Isolation | Galvanic isolation between field wiring and internal logic |
Cold Junction Compensation & Channel-to-Channel Isolation
The 8C-PAIMA1 module incorporates internal Cold Junction Compensation (CJC) processing algorithms paired with isothermal terminal block references on the associated I/O Termination Assembly (IOTA) to maintain measurement calibration during ambient thermal shifts. Individual channel-to-channel isolation circuits prevent circulating ground currents between isolated field sensors. When deployed on high-density C300 I/O carrier racks alongside 4-20 mA HART loop protocol modules, the isolated analog front-end prevents signal distortion and common-mode noise coupling across adjacent input paths.
Frequently Asked Questions
Q: Does the 8C-PAIMA1 module support hot-swapping while the C300 node remains online?
A: Yes, the 8C-PAIMA1 module allows live insertion and removal (hot-swapping) on an active Series C IOTA base without interrupting backplane bus communications or disturbing adjacent operational modules.
Q: How does the module prevent thermal gradient errors on thermocouple field wiring?
A: Cold junction compensation circuitry continuously monitors terminal interface temperatures, applying dynamic algorithmic offsets to raw millivolt inputs to eliminate cold junction reference drift.
Field Installation Guidelines
- IOTA Mounting & Enclosure Considerations: Mount the module onto its designated Series C IOTA base affixed to standard DIN rails inside an IP54 or NEMA 12 rated cabinet. Ensure a minimum vertical clearance of 50 mm above and below the module assembly to ensure unobstructed convective cooling.
- Shielding & Cable Routing: Route thermocouple extension wires and RTD signal leads in shielded twisted-pair cables separate from high-voltage AC lines and switching inductive loads. Connect cable drain shields to the panel ground bar at a single point to maintain system isolation integrity.
- Terminal Wiring Torque: Strip conductor ends to 7 mm prior to insertion into the IOTA screw-clamp terminal blocks. Tighten screws to a maximum torque of 0.5 Nm to prevent mechanical stress on internal printed circuit wiring.
Honeywell 8C-PAIMA1 Low Level Analog Input Module
Honeywell 8C-PAIMA1 Low Level Analog Input Module
Configured for low-level millivolt temperature signal acquisition in Experion C300 controller networks, the Honeywell 8C-PAIMA1 (8C-PAIMA1 Low Level Analog Input Module) provides direct physical/electrical execution. The module converts analog signals from Resistance Temperature Detectors (RTD) and Thermocouples (TC) into digital temperature data values transmitted directly across the Experion Series C I/O backplane bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8C-PAIMA1 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 3 kg (Shipping Weight) |
| Dimensions | Standard Series C I/O module form factor |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | System backplane powered via I/O Termination Assembly |
| Module Type | Low Level Analog Input Module (RTD & TC) |
| Input Signals | Resistance Temperature Detectors (RTD) and Thermocouples (TC) |
| Channel Isolation | Galvanic isolation between field wiring and internal logic |
Cold Junction Compensation & Channel-to-Channel Isolation
The 8C-PAIMA1 module incorporates internal Cold Junction Compensation (CJC) processing algorithms paired with isothermal terminal block references on the associated I/O Termination Assembly (IOTA) to maintain measurement calibration during ambient thermal shifts. Individual channel-to-channel isolation circuits prevent circulating ground currents between isolated field sensors. When deployed on high-density C300 I/O carrier racks alongside 4-20 mA HART loop protocol modules, the isolated analog front-end prevents signal distortion and common-mode noise coupling across adjacent input paths.
Frequently Asked Questions
Q: Does the 8C-PAIMA1 module support hot-swapping while the C300 node remains online?
A: Yes, the 8C-PAIMA1 module allows live insertion and removal (hot-swapping) on an active Series C IOTA base without interrupting backplane bus communications or disturbing adjacent operational modules.
Q: How does the module prevent thermal gradient errors on thermocouple field wiring?
A: Cold junction compensation circuitry continuously monitors terminal interface temperatures, applying dynamic algorithmic offsets to raw millivolt inputs to eliminate cold junction reference drift.
Field Installation Guidelines
- IOTA Mounting & Enclosure Considerations: Mount the module onto its designated Series C IOTA base affixed to standard DIN rails inside an IP54 or NEMA 12 rated cabinet. Ensure a minimum vertical clearance of 50 mm above and below the module assembly to ensure unobstructed convective cooling.
- Shielding & Cable Routing: Route thermocouple extension wires and RTD signal leads in shielded twisted-pair cables separate from high-voltage AC lines and switching inductive loads. Connect cable drain shields to the panel ground bar at a single point to maintain system isolation integrity.
- Terminal Wiring Torque: Strip conductor ends to 7 mm prior to insertion into the IOTA screw-clamp terminal blocks. Tighten screws to a maximum torque of 0.5 Nm to prevent mechanical stress on internal printed circuit wiring.
