Product Details
The Yokogawa CT5-TJ*A, also cataloged as the CT5-TJ Thermocouple Input Module, operates as a dedicated hardware component for converting low-level millivolt signals into digitized temperature data within Yokogawa CENTUM DCS networks. It executes high-precision signal conditioning for Type J thermocouple sensors over a dedicated process variable measurement circuit.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CT5-TJ*A (CT5-TJ Suffix A) |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.6 kg |
| Dimensions | 20 mm x 128 mm x 120 mm |
| Operating Temp | -10 to 60 deg C |
| Power Consumption | 24 VDC +/-10% |
| Input Type | Type J Thermocouple |
| Measurement Range | 0 to 180 deg C |
| Resolution | 0.1 deg C |
| Accuracy | +/-0.5 deg C typical |
| Data Rate | Up to 1 Mbps (industrial bus communication) |
| Storage Temp | -20 to 70 deg C |
Cold Junction Compensation (CJC) and Signal Conditioning
The CT5-TJ*A integrates internal cold junction compensation (CJC) circuitry to normalize ambient temperature drifts across millivolt input terminals during Type J thermocouple processing. Designed to maintain high measurement fidelity in DCS environments, the module incorporates channel-to-channel isolation and low-pass filtering to attenuate high-frequency noise and common-mode voltage interference. The conditioned process variable is serialized and transmitted over the internal backplane bus at communications rates up to 1 Mbps.
Frequently Asked Questions
Q: What power input tolerance is permitted for the CT5-TJ*A module?
A: The module operates on a nominal supply of 24 VDC with an allowable voltage input tolerance of +/-10%.
Q: What sensor types are compatible with the CT5-TJ*A input channels?
A: The module is hardware-calibrated specifically for Type J thermocouple inputs across a millivolt conversion range of 0 to 180 deg C.
Q: Does the CT5-TJ*A require external cold junction reference hardware?
A: No, the module includes internal cold junction compensation to compensate for local terminal block temperature variations automatically.
Field Installation Guidelines
- ESD Protection: Handle the module card using an anti-static wrist strap connected to cabinet ground prior to removing it from protective packaging.
- Cabinet Mounting: Slide the module assembly into the designated Yokogawa DCS I/O slot guide until the backplane connector fully seats, then tighten retaining screws.
- Thermocouple Wiring: Utilize extension-grade Type J thermocouple extension wire and maintain correct polarity connections at the terminal block.
- Shield Termination: Earth overall cable shielding at a single point on the enclosure instrument grounding bar to suppress electromagnetic interference.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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