Honeywell CC-PAIM01 Low-Level Analog Mux Module
The Honeywell CC-PAIM01, also cataloged as the CC-PAIM01 Analog Input Module, operates as a dedicated hardware component for high-density thermocouple and RTD signal multiplexing within Experion PKS C300 automation platforms.
Hardware Specifications
| Parameter |
Specification |
| Model |
CC-PAIM01 |
| Brand |
Honeywell |
| Origin |
USA |
| Weight |
Standard C300 IOM weight |
| Dimensions |
63.5 x 124.46 x 307.34 mm (1.2 x 4.9 x 12.1 in FTA) |
| Operating Temp |
-20 deg C to 60 deg C |
| Power Consumption |
Standard C300 internal supply limits |
| Channel Count |
64 fully-isolated channels (expandable in 16-channel increments) |
| Input Signal Types |
Thermocouples (Types J, K, E, T, B, S, R, R'), RTDs (Pt100, Ni120, Cu10), mV (-20 to +100 mV) |
| Scan Rate |
1 second fixed scan cycle |
| Gain Error |
0.050% full scale maximum |
| Common Mode Voltage |
+/- 250 VDC / VAC RMS channel-to-power |
| CMRR / NMRR |
120 dB min CMRR; 60 dB min NMRR |
| Cold Junction Compensation |
+/- 1.0 deg C max accuracy (0 deg C to 50 deg C) |
| Channel Isolation |
+/- 250 VDC / VAC RMS channel-to-channel |
Cold Junction Compensation & 4-20 mA HART Loop Protocols
The CC-PAIM01 module features 64 fully-isolated low-level input channels optimized for direct temperature sensor interfacing across DCS process loops. High-precision onboard Cold Junction Compensation (CJC) maintains reference accuracy within +/- 1.0 deg C, guaranteeing stable linearization for broad-spectrum thermocouple and RTD temperature transmitters. Galvanic channel-to-channel isolation (+/- 250 VAC RMS) mitigates ground loop interference and cross-talk, preserving high common-mode rejection ratios (120 dB CMRR) in dense field instrument environments.
Frequently Asked Questions
Q: How is cold junction compensation (CJC) handled when connecting thermocouples to the CC-PAIM01 module?
A: Cold junction compensation is performed directly at the Field Termination Assembly (FTA) with a high-accuracy reference sensor maintaining +/- 1.0 deg C accuracy across 0 deg C to 50 deg C operating conditions.
Q: What level of electrical isolation is provided between individual channels on the CC-PAIM01?
A: The module provides full galvanic isolation rated at +/- 250 VDC / VAC RMS channel-to-channel, channel-to-PM, and channel-to-power common.
Q: What is the maximum distance supported between the IOTA and the Field Termination Assembly (FTA)?
A: Using the optional cable adapter and 16-gauge twisted-pair wiring, the maximum supported distance between the IOTA and FTA is 1000 feet (304.8 meters).
Field Installation Guidelines
-
Mount the Field Termination Assembly (FTA) securely onto a standard enclosure DIN rail, ensuring proper spacing for field sensor wiring trunks.
-
Connect thermocouple or RTD wiring directly to the FTA screw terminals, maintaining proper polarity and using shielded twisted-pair cables to eliminate electromagnetic noise.
-
Verify that maximum RTD lead resistance does not exceed 15 ohms per wire to prevent gain degradation and measurement offsets.
-
Earth all field cable shields at the designated FTA ground bar, ensuring a low-impedance ground connection to maintain 2 kV surge protection under EN 61000-4-5 standards.
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