Description
The LS Electric G3F-RD3A is an 8-channel Resistance Temperature Detector (RTD) analog input module engineered for the GLOFA-GM PLC series (specifically GM1, GM2, and GM3 CPU architectures). It directly converts ambient analog temperature signals from Pt100 or JPt100 sensors into 16-bit signed digital binary values (0 to 16,000) for processing within control loops. Are you experiencing fluctuating temperature readings or sensor mismatch faults in your process line? This module provides dedicated three-wire lead resistance compensation for every individual channel, but you must keep loop resistance under 10 \Omega per wire to maintain measurement integrity.
Technical Specifications and Performance Profiles
| Parameter | Value |
| Model Number | G3F-RD3A |
| Manufacturer | LS Electric (formerly LG Industrial Systems) |
| System Compatibility | GLOFA-GM1 / GM2 / GM3 CPU Series |
| Input Channels | 8 independent channels per module |
| Supported Sensors | Pt100 (DIN/JIS), JPt100 (KS/JIS) |
| Temperature Range (Pt100) | −200.0 to +600.0 °C |
| Digital Output Range | 0 to 16,000 (Digital conversion value) |
| Temperature Resolution Data | −2,000 to +6,000 (Stored as value \times 10) |
| Conversion Speed | 50 ms maximum per channel |
| Full-Scale Accuracy | \pm0.5% at room temperature |
| Diagnostics | Onboard open-wire sensor burnout detection |
Commercial Condition and Global Logistics Availability
We supply the G3F-RD3A in New Surplus (Factory Boxed) or Refurbished (Fully Bench Tested) condition. Because precise thermal processing control is vital to prevent product defects, our calibration lab performs full-scale signal injection across all eight RTD channels before approving any unit for export packaging.
- Availability: Regular inventory maintained for international fulfillment
- Lead Time: Ready for carrier pickup within 1 to 2 business days
- Warranty: 12-month comprehensive replacement warranty
- Pricing Note: The listed price serves as an open commercial market reference index. Final commercial billing varies with international component supply, remaining warehouse lot sizing, and project discounts. Contact our logistics desk for a binding formal quote.
Cross-Border Logistics and Export Compliance Management
Shipping legacy programmable logic controller modules requires adherence to cross-border logistics guidelines. We route priority air freight packages daily through DHL Express, FedEx, and UPS to destinations across North America, Europe, Australia, and Southeast Asia.
This hardware is declared under HS Code 8538.90.00 for parts suited for use solely with programmable industrial control apparatus. The module does not trigger complex dual-use military restrictions under standard conditions. Our export documentation specialists generate verified commercial invoices and packing slips matching your specific localized import requirements. This explicit documentation prevents customs border agents from detaining the package for unnecessary physical inspection at the port of entry.
LS GLOFA RTD Input Module Field FAQ
- Can I mix Pt100 and JPt100 sensors on the same G3F-RD3A module?
Well, technically the internal hardware can sample both curves, but in our field experience, you should avoid mixing them. The system software expects a uniform registration block configuration via GMWIN function blocks. Mixing sensor types across channels on a single module requires complex code-level scaling modifications that significantly increase your programming overhead.
- What should I look for if a channel returns a maximum scale value of 16,000?
This behavior typically indicates that the module has triggered its built-in burnout function. If an internal trace cracks or a field technician disconnects the third terminal block wire on that specific channel, the module senses infinite resistance and automatically drives the digital output to full scale to indicate a broken sensor loop.
