The Honeywell CC-TAIL51, also cataloged as the CC-TAIL51 Temperature Analog Input Module, operates as a dedicated hardware component for temperature sensor signal acquisition within Honeywell Experion Series C DCS platforms. It processes low-mV inputs directly from thermocouples and RTDs, executing signal conversion for high-precision thermal monitoring.
Hardware Specifications
Parameter
Specification
Model
CC-TAIL51
Brand
Honeywell
Origin
USA
Weight
Standard Module Weight
Dimensions
Standard Series C Footprint
Operating Temp
-40 to 70 deg C
Power Consumption
System powered via backplane bus
Input Signal Types
Thermocouple and RTD (Universal)
Scan Rate
1 sec (All channels)
Channel Configuration
Independently configurable per channel
Signal Isolation
Channel-to-channel and channel-to-power isolation
Cold Junction Compensation and Channel Isolation Features
The Honeywell CC-TAIL51 provides integrated channel-to-channel galvanic isolation to eliminate common-mode ground potential currents across remote temperature loops. Internal cold junction compensation (CJC) algorithms dynamically calibrate thermocouple millivolt readings, while dedicated RTD lead-wire resistance cancellation circuitry ensures high-fidelity temperature calculation. This isolation and compensation structure prevents high-frequency noise coupling across the 4-20 mA HART loop protocol environment and adjacent analog field buses.
Frequently Asked Questions
Q: Can channels on the CC-TAIL51 be mixed between Thermocouple and RTD sensor types on a single module?
A: Yes, each input channel is independently software-configurable, allowing simultaneous interfacing with RTD elements and thermocouple wires without hardware adjustments.
Q: How does internal channel-to-channel isolation benefit temperature measurement accuracy?
A: Physical galvanic isolation between channels blocks ground loops and high common-mode voltages originating from ungrounded thermocouples, preventing measurement errors across adjacent input channels.
Field Installation Guidelines
Align the CC-TAIL51 module onto the designated carrier base slot within the Experion Series C enclosure.
Seat the module firmly into the backplane connector until top and bottom retention latches securely snap into place.
Connect thermocouple extension wires or 3-wire RTD leads directly to the companion termination assembly screw terminals.
Verify that signal cable shielding is terminated at the cabinet primary ground bar at a single point to prevent circulating ground currents.
Maintain a minimum distance of 50 mm between sensor input field wiring and AC power conductors within cable ducts.
