Honeywell MC-TAIH22 High-Level Analog Input Module
Configured for high-density physical signal acquisition in Experion PKS and ControlEdge platforms, the Honeywell MC-TAIH22 (MC-TAIH22 High-Level Analog Input Module) provides direct physical/electrical execution. The module accepts up to 16 analog input points across voltage, current, thermocouple, and RTD sensor pathways to sample temperature, pressure, and flow variables. Internal signal conditioning logic performs active filtering and noise suppression before passing high-resolution digital data across the backplane. Integrated conformal coating shields onboard components against corrosive atmospheric contaminants, while dual power connections support redundant operational rails.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC-TAIH22 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.3 kg |
| Dimensions | 12.7 x 6.2 x 9.4 cm |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 24 VDC nominal (supports power redundancy) |
| Input Channels | 16 analog input points |
| Input Signal Types | Thermocouples, RTDs, Voltage, Current sensors |
| Field Termination | Compression terminals |
| Conformal Coating | Yes (Not CE-compliant) |
| Certifications | CE, UL508, CSA, TUV |
Cold Junction Compensation & Channel Isolation
The MC-TAIH22 module incorporates high-accuracy cold junction compensation (CJC) processing across its 16 input channels when interfaced with thermocouple sensors. Onboard thermistors continuously sample ambient temperature at the compression terminal block, dynamically adjusting the millivolt potential calculations to neutralize cold-junction thermal gradient errors. Internal channel-to-system isolation barriers decouple incoming sensor signal loops from internal backplane microprocessors, shielding sensitive A/D conversion stages against high common-mode electrical noise, ground potential loops, and field-side voltage transients.
Frequently Asked Questions
Q: How does the conformal coating specification affect regulatory CE compliance?
A: The conformal coating applied to the MC-TAIH22 internal circuit assembly provides enhanced protection in harsh, corrosive environments; however, this specific coated configuration is designated as Not CE-compliant.
Q: What termination hardware is utilized for field sensor wiring?
A: Field connections terminate via built-in compression terminals designed to secure solid or stranded signal conductors directly to the input conditioning channels.
Q: Does the module require external cold junction compensation blocks for thermocouple inputs?
A: Internal cold junction compensation circuits handle thermal reference adjustments directly at the module input stage, maintaining temperature measurement accuracy without external CJC hardware.
Field Installation Guidelines
- Mount the MC-TAIH22 module onto the cabinet chassis guide rails, ensuring the backplane connectors align fully before pushing the unit into its seated position.
- Fasten module retention screws to secure physical mounting and establish low-impedance chassis ground bonding.
- Terminate field input conductors (voltage, current, RTD, or thermocouple) into the compression terminals, adhering to specified wire strip lengths and torque limits.
- Route low-level analog input and thermocouple wiring using shielded cables, connecting shield drain wires to the single-point technical earth bar within the enclosure.
- Maintain a minimum clearance distance of 20 cm between low-voltage signal cabling and high-power AC lines to suppress electromagnetic interference.
Honeywell MC-TAIH22 High-Level Analog Input Module
Honeywell MC-TAIH22 High-Level Analog Input Module
Configured for high-density physical signal acquisition in Experion PKS and ControlEdge platforms, the Honeywell MC-TAIH22 (MC-TAIH22 High-Level Analog Input Module) provides direct physical/electrical execution. The module accepts up to 16 analog input points across voltage, current, thermocouple, and RTD sensor pathways to sample temperature, pressure, and flow variables. Internal signal conditioning logic performs active filtering and noise suppression before passing high-resolution digital data across the backplane. Integrated conformal coating shields onboard components against corrosive atmospheric contaminants, while dual power connections support redundant operational rails.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC-TAIH22 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.3 kg |
| Dimensions | 12.7 x 6.2 x 9.4 cm |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 24 VDC nominal (supports power redundancy) |
| Input Channels | 16 analog input points |
| Input Signal Types | Thermocouples, RTDs, Voltage, Current sensors |
| Field Termination | Compression terminals |
| Conformal Coating | Yes (Not CE-compliant) |
| Certifications | CE, UL508, CSA, TUV |
Cold Junction Compensation & Channel Isolation
The MC-TAIH22 module incorporates high-accuracy cold junction compensation (CJC) processing across its 16 input channels when interfaced with thermocouple sensors. Onboard thermistors continuously sample ambient temperature at the compression terminal block, dynamically adjusting the millivolt potential calculations to neutralize cold-junction thermal gradient errors. Internal channel-to-system isolation barriers decouple incoming sensor signal loops from internal backplane microprocessors, shielding sensitive A/D conversion stages against high common-mode electrical noise, ground potential loops, and field-side voltage transients.
Frequently Asked Questions
Q: How does the conformal coating specification affect regulatory CE compliance?
A: The conformal coating applied to the MC-TAIH22 internal circuit assembly provides enhanced protection in harsh, corrosive environments; however, this specific coated configuration is designated as Not CE-compliant.
Q: What termination hardware is utilized for field sensor wiring?
A: Field connections terminate via built-in compression terminals designed to secure solid or stranded signal conductors directly to the input conditioning channels.
Q: Does the module require external cold junction compensation blocks for thermocouple inputs?
A: Internal cold junction compensation circuits handle thermal reference adjustments directly at the module input stage, maintaining temperature measurement accuracy without external CJC hardware.
Field Installation Guidelines
- Mount the MC-TAIH22 module onto the cabinet chassis guide rails, ensuring the backplane connectors align fully before pushing the unit into its seated position.
- Fasten module retention screws to secure physical mounting and establish low-impedance chassis ground bonding.
- Terminate field input conductors (voltage, current, RTD, or thermocouple) into the compression terminals, adhering to specified wire strip lengths and torque limits.
- Route low-level analog input and thermocouple wiring using shielded cables, connecting shield drain wires to the single-point technical earth bar within the enclosure.
- Maintain a minimum clearance distance of 20 cm between low-voltage signal cabling and high-power AC lines to suppress electromagnetic interference.
