GE DS3800HLND1C1C | IS200 I/O Link Card Fast Shipping

Description

Product Introduction

The GE DS3800HLND1C1C is a fully populated I/O link card from the Mark VI Speedtronic series, combining thermocouple input capability on channels 1-4 with RTD input capability on channels 5-8, all with external IONet termination. This dual-sensor variant is specifically engineered for turbine applications requiring both exhaust gas temperature monitoring (thermocouples) and bearing temperature measurement (RTDs), with mid-chain IONet placement.

What sets the 1C1C suffix apart is its factory-set jumper configuration that enables Type K thermocouple operation with cold-junction compensation on the first four channels and PT100 RTD operation with 1 mA excitation on the remaining four channels. The ‘D’ in the base model indicates no internal IONet termination, requiring external terminators at the network ends. This configuration is ideal for large turbine installations where eight temperature monitoring points need to be consolidated onto one board at a mid-chain rack position. We stock verified units with logged firmware versions and complete test records. No rework, no counterfeit—just OEM-spec hardware ready for deployment.

Key Technical Specifications

Key Selling Points & Differentiators

• Dual-Sensor Consolidation: Four Type K thermocouple channels + four PT100 RTD channels on one board—reduces rack slot usage by 50% compared to dedicated sensor cards.
• Factory-Optimized Configuration: 1C1C suffix sets channels 1-4 for Type K thermocouples with CJC and channels 5-8 for PT100 RTDs with 3-wire compensation, saving approximately 3 hours of field commissioning time.
• Precision RTD Conditioning: 1 mA excitation current with ratiometric measurement ensures ±0.1°C resolution on bearing temperature channels.
• Type K Thermocouple Linearization: Factory-verified NIST linearization tables with cold-junction compensation accuracy of ±0.5°C for exhaust gas monitoring.
• Full Factory Test: Every unit undergoes a 24-hour burn-in with live I/O loopback, precision resistor simulation for PT100 channels (spanning –50°C to +300°C), thermocouple simulation for Type K channels, and communication handshake verification—includes signed QC report with measured values for all analog channels.
• 30-Day Compatibility Guarantee: If the module does not function in your specific firmware revision (we log the onboard firmware), return for full credit—no restocking fee.
• Anti-Counterfeit Sealed: Each DS3800HLND1C1C ships with tamper-evident packaging and visual inspection photos taken at receipt.
• Cost-Effective Alternative: Priced 45-60% below GE’s new MSRP while maintaining OEM-spec performance through live testing.

Frequently Asked Questions (FAQ)

Can I hot-swap the DS3800HLND1C1C while the turbine is running?
No—absolutely not. The Mark VI backplane does not support live insertion for this module. You will need a full shutdown and power cycle. In our experience, attempting hot-swap can corrupt the IONet sync and force a controller reset. Always isolate the rack before removal.

What exactly does the 1C1C suffix mean, and does it matter for my application?
Yes, the suffix is critical. The first ‘C’ indicates Type K thermocouple configuration on channels 1-4 with CJC enabled. The second ‘C’ indicates PT100 RTD configuration on channels 5-8 with 1 mA excitation and 3-wire lead compensation. If your temperature sensors are different types (e.g., Type J thermocouples or NI120 RTDs), you’ll need to either reconfigure jumpers (we can provide the map) or select a different variant. If your board sits at the end of the IONet network, you will need to add external termination.

Will this board work as a direct replacement for a DS3800HLIC1B1C?
Physically yes, but the sensor configuration is different. The HLIC1B1C has PT100 RTDs on channels 1-4 and Type K thermocouples on channels 5-8. The HLND1C1C has Type K thermocouples on channels 1-4 and PT100 RTDs on channels 5-8. Swapping them without changing your field wiring and I/O map will cause incorrect readings—thermocouples connected to RTD inputs and vice versa will produce open-circuit alarms. If your installation uses thermocouples on the first four channels and RTDs on the last four, this is exactly the board you need.

How do I verify if this board matches my existing firmware revision?
We log the firmware version from every unit during our inbound test. Before shipping, we can confirm whether it matches your current revision. This is particularly important for the 1C1C because both thermocouple linearization tables and RTD coefficients reside in firmware. A mismatch can cause a +1.5°C offset on Type K at 1,000°C and a +0.5°C offset on PT100 at 300°C. If it differs, we advise updating your controller or request a specific rev from our stock.

These are surplus units—how do I know they aren’t counterfeit or repaired?
We maintain full traceability: every DS3800HLND1C1C is photographed upon receipt, cross-checked against GE’s OEM marking guide (including board revision, date code, and component-level verification), and tested for electrical characteristics (insulation > 10 MΩ, current draw within 5% of spec). We do not sell repaired boards—only clean, functional pulls or new surplus. The QC tag includes our test signature and a photo record of the board’s condition.

What happens if the board fails after installation?
Our standard warranty covers functional defects for 12 months from shipment. That said, we do not cover damage from ESD, incorrect wiring, or overvoltage. To be frank, we’ve seen more thermocouple input failures from improper extension wire than from board defects—using copper wire instead of Type K extension creates a secondary junction that can induce up to 3°C of error. For the RTD channels, missing the compensation lead on a 3-wire PT100 introduces approximately 0.25°C per ohm of lead resistance error. We include a quick-reference wiring guide with every shipment that clearly shows termination for both sensor types.

Is programming or configuration required, or is it plug-and-play?
It’s “plug-and-play” only if your IONet configuration already expects an HLND1C1C at that slot address and your field sensors match the factory assignments (Type K on channels 1-4, PT100 on channels 5-8). Otherwise, you must reconfigure the I/O map in the CIMPLICITY or Toolbox software. The board stores no user program—all logic resides in the controller. You will not lose turbine sequences by swapping this board. The CJC calibration values and RTD linearization constants are stored onboard, so measurements remain accurate without recalibration.

What shipping and packaging precautions do you take?
Each board is placed in an anti-static bag, wrapped in ESD foam, and double-boxed with desiccant. Temperature sensor cards with both thermocouple and RTD circuits are particularly sensitive to moisture—we seal the inner bag with a tamper-evident label and include a humidity indicator card. We’ve shipped to offshore platforms, desert installations, and Arctic sites without humidity-related failures. If you need expedited customs documentation, we include commercial invoices with Harmonized Code 8538.90.8160.

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