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The 8C-PAIMA1 51454473-175 is a 16-channel, low-level analog input module for the Series 8 C300 DCS, designed for TC/RTD temperature measurement.
TC and RTD operation
1 Second PV scanning with OTD protection
Remote Cold Junction compensation capability
The Low Level Analog Input (LLAI) Module accepts up to 16 channels of temperature inputs from RTD & TC. The TC/RTD IOM supports a configuration parameter for Open Sensor Detect before PV delivery. With the OTD configuration active, the PV is sampled and held while an OTD cycle is performed within the same measurement window. If the OTD is negative, the PV is propagated up through the system. If the OTD is positive, the PV is set to NAN and the input channel soft failure is set. In this way, no inappropriate control action occurs for PV values that are invalid due to an open thermocouple. PV sampling/reporting incurs no added delays from OTD processing.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Honeywell 8C-PAIMA1 51454473-175 Low Level Analog Input – RTD & TC Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power
Captures precise RTD bearing temperatures and TC exhaust gas temperatures (EGT) of large steam turbines to ensure structural integrity.
Petrochemical & Oil
Monitors high-temperature multi-point thermocouples in hydrocracking and catalytic reforming reactors to prevent thermal runaway.
Pulp and Paper
Tracks temperatures in chemical recovery boilers and continuous digesters where cooking liquor creates a corrosive atmosphere.
Nuclear Power
Provides redundant, highly isolated temperature monitoring for steam generator loops and primary coolant pump bearings.
Semiconductor
Regulates ultra-precise zone temperatures inside diffusion furnaces and chemical vapor deposition (CVD) chambers.
When using the 8C-PAIMA1 51454473-175 module, keep these key points in mind. Anti-static handling—always wear an ESD wrist strap before touching, and ensure steady vertical alignment during live hot-swapping. Accurate wiring—strictly follow the IOTA base diagram, connect only TC or RTD signals, and never mix in high voltage. Activate open-circuit detection—be sure to enable the OTD parameters in the software to prevent inappropriate downstream control actions if a field sensor wire breaks.
It is a Low-Level Analog Input (LLAI) module within the Honeywell Experion PKS / Series 8 control system, specifically designed to interface directly with and precisely measure Thermocouple (TC) and Resistance Temperature Detector (RTD) temperature sensors.
What specific sensor types are supported by 8C-PAIMA1 51454473-175?
Supports standard types including J, K, T, E, R, S, B, and N.
What are the power supply requirements for this module?
The module is powered via the Series 8 power system through the backplane, requiring a nominal standard voltage of 24 VDC with a consumption of approximately 120 mA.
How many physical channels does 8C-PAIMA1 51454473-175 provide?
The module provides up to 16 physical input channels, which can be individually configured via software to receive either pulse or standard analog signals.
What harsh environments can the coating of 8C-PAIMA1 51454473-175 withstand?
It complies with the ISA S71.04 G3 harsh environmental rating, effectively resisting acidic gases like hydrogen sulfide commonly found in refineries and chemical plants.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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