Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage | 24 VDC ±10% (nominal) |
| Discrete Inputs | 16 optically isolated, 24 V sink/source |
| Discrete Outputs | 16 solid-state, 0.5 A per channel max |
| RTD Inputs | 8 channels, factory-configured for PT100 (all channels) |
| RTD Excitation Current | 1 mA constant current, ±0.1% accuracy |
| RTD Range | –200°C to +600°C (PT100, 3-wire configuration) |
| RTD Resolution | 0.1°C (typical) |
| RTD Accuracy | ±0.05% of reading +0.1°C at 25°C |
| RTD Accuracy (temperature range) | ±0.1% of reading +0.2°C (0°C to +60°C) |
| Lead Compensation | 3-wire ratiometric measurement (built-in) |
| Common-Mode Rejection | > 100 dB at 50/60 Hz |
| Input Filtering | Standard filtering |
| IONet Termination | Internal 120 Ω resistor (factory-enabled) |
| Analog Outputs | 2 channels, 0-20 mA or 0-10 V (jumper-selectable) |
| Communication Protocol | GE IONet (proprietary, 2 Mbps) |
| Isolation Voltage | 1500 VAC (field-to-logic) |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | –40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Power Consumption | 8.8 W typical (higher due to RTD excitation current) |
| Dimensions | 18.5 cm x 12.7 cm x 3.0 cm (std. Mark VI form factor) |
Key Selling Points & Differentiators
- High-Performance RTD Measurement: Precision components and low-drift amplifiers deliver ±0.05% accuracy for critical bearing and winding temperature monitoring.
- Eight PT100 Channels: All eight analog inputs dedicated to PT100 RTDs with 3-wire lead compensation—eliminates external signal conditioners.
- Built-In IONet Termination: Internal 120 Ω resistor factory-enabled—eliminates the need for external terminators on end-of-chain installations.
- Temperature-Stable Accuracy: ±0.1% full scale across the entire 0°C to +60°C operating range—minimal temperature-related drift.
- Factory-Configured Inputs: Pre-configured PT100 scaling and 3-wire compensation on all channels—saves field commissioning time.
- Full Factory Test: Every unit undergoes a 24-hour burn-in with live I/O loopback, precision resistor simulation (spanning PT100 values from –50°C to +300°C), and communication handshake verification—includes signed QC report with measured values for all 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 DS3800HPID1B1B 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 DS3800HPID1B1B 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 1B1B suffix mean, and does it matter for my application?
Yes, the suffix is critical. Both ‘B’ suffixes indicate PT100 RTD configuration on all eight analog channels with 1 mA excitation and 3-wire lead compensation. The ‘D’ base model provides internal termination. If your sensors are thermocouples or 4-20 mA transmitters, you’ll need to select a different variant. If this board sits in the middle of the IONet network, its internal termination would cause double-termination—this variant should only be used at end positions.
What makes this board different from the DS3800HPBC1B1B?
Both boards provide the same PT100 RTD configuration, high-performance components, standard filtering, and internal termination. The difference is in the base model suffix—’D’ versus ‘C’—which may indicate different factory configurations, component selections, or calibration tolerances. In practical terms, they are functionally identical. If you need specific revision or date code information, we can check our stock.
What makes this board different from the DS3800HMPG1B1B?
The HPID1B1B provides standard filtering and is from a different product family within the Mark VI series. The HMPG1B1B provides advanced filtering (50/60 Hz notch filters) and comprehensive diagnostics. For applications in electrically noisy environments requiring advanced noise rejection and diagnostic feedback, the HMPG series is the preferred choice. For standard applications, the HPID series provides excellent performance at a lower cost point.
How does the lead compensation work on the RTD channels?
The 3-wire ratiometric measurement automatically compensates for lead wire resistance, canceling errors that would otherwise be introduced by long cable runs. This compensation is effective up to approximately 10 Ω of lead resistance per wire (equivalent to about 100 meters of 22 AWG copper wire). Missing the compensation lead (third wire) will introduce approximately 0.25°C per ohm of lead resistance error.
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. The precision calibration constants and RTD linearization data reside in onboard memory. A mismatch can cause a +0.5°C offset 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 DS3800HPID1B1B 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, high-performance RTD boards like the HPID1B1B are more sensitive to ESD and thermal gradients—we recommend proper grounding and handling procedures, and avoiding mounting the board near heat sources or in areas with rapid temperature changes. For the RTD inputs, ensure all three wires are connected properly to maintain lead compensation accuracy.
Is programming or configuration required, or is it plug-and-play?
It’s “plug-and-play” only if your IONet configuration already expects an HPID1B1B at that slot address and your field sensors are all PT100 RTDs in 3-wire configuration. Otherwise, you must reconfigure the I/O map in the CIMPLICITY or Toolbox software to match the board’s factory scaling. The board stores no user program—all logic resides in the controller. You will not lose turbine sequences by swapping this board.
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. High-performance RTD cards with precision excitation current sources are sensitive to moisture, contamination, and thermal shock—we seal the inner bag with a tamper-evident label, include a humidity indicator card, and use anti-corrosion packaging. 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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