GE IS200RAPAG1B Mark VIe | New Surplus Stock

Description

Product Introduction

The IS200RAPAG1B is the revision B version of the remote analog I/O pack. GE made a running change to improve the EMC filtering on the analog inputs and add a more robust output stage that can drive longer cable runs. If your remote I/O rack is near VFDs, large contactors, or other noise sources, this is the module that keeps the analog signals clean.

The “G1B” suffix tells you this is a hardware revision. GE added additional filtering on the analog input front-end—a common-mode choke and additional capacitors that reject 50/60 Hz noise and high-frequency EMI. The output stage was redesigned with a better 4–20 mA driver that can drive 1,000 Ω loads (instead of 750 Ω). The rest is standard RAPA: eight analog inputs, eight analog outputs, 16-bit input resolution, 12-bit output resolution, 2,500 V isolation.

Key Technical Specifications

Quality Inspection Process (SOP Transparency)

The RAPAG1B gets the same test regimen as the G1A, plus an EMI stress test to verify the improved filtering.

Incoming Verification. OEM packing slip matched to GE’s serial database. We log the serial and photograph the anti-static bag before cutting. The holographic GE label gets a UV check. The PCB edge must read “–RAPAG1B” clearly.

Visual Inspection. Magnifying lamp, full board scan. The additional EMC components (common-mode chokes, capacitors) are visually confirmed. The redesigned output stage is inspected.

Live Functional Test. Mark VIe test rack with a precision voltage/current source, load bank, remote bus simulator, and an EMI generator.

• Analog input test: Inject 4 mA, 12 mA, 20 mA—verify accuracy.
• EMI stress test: Inject 50/60 Hz noise and high-frequency EMI on the input wiring—verify the module rejects the noise and maintains accuracy.
• Analog output test: Command 4 mA, 12 mA, 20 mA into a 1,000 Ω load—verify output accuracy.
• Remote bus communication test: Verify data transmission.
• Isolation test: 2,500 V RMS—no breakdown.
• 24-hour soak.

Electrical Parameters. Insulation resistance: 500 VDC via Megger MIT420, >20 MΩ. Ground continuity: <0.1 Ω.

Firmware Verification. Read the FPGA firmware via ToolboxST—verify the checksum.

Final QC & Packaging. The QC report includes input accuracy, EMI rejection, output accuracy at 1,000 Ω load, isolation test, and a photo.

Field Replacement Pitfalls

The RAPAG1B has improved EMC filtering, but installation mistakes are the same as the standard version.

Remote Bus Termination—Terminate Both Ends. If you don’t terminate the bus, the communication will be unreliable—even with the improved module.

Analog Outputs—4–20 mA, Now with 1,000 Ω Load Capability. The RAPAG1B can drive 1,000 Ω loads—up from 750 Ω. But if your load is higher than 1,000 Ω, you still need an external amplifier.

Input Configuration—Program It. Configure each input for the correct range. The defaults don’t work.

EMI Filtering—The G1B Rejects Noise, But It’s Not Magic. The improved filtering helps with moderate noise. If you’re in a high-EMI environment (near a large VFD), you still need shielded cable.

ESD. Strap up.

New Original vs. Refurbished: Why It Matters

The RAPAG1B has improved EMC components and a better output driver—refurbishers can’t add these.

What “New Original (New Surplus)” means. This IS200RAPAG1B came from GE’s factory with the enhanced EMC components and redesigned output stage. We break the seal only for testing.

Refurbished risk in plain terms. A refurbisher may buy a standard G1A, clean it, and sell it as a G1B. They won’t add the EMC components or the upgraded output driver. The module won’t reject noise as well, and it won’t drive 1,000 Ω loads. I’ve tested refurbished “G1B” units that were actually G1As—they failed the EMI stress test. Failure rate on refurbished remote analog I/O modules runs 4× higher than new.

Real cost of a refurbished failure. EMI noise corrupts an analog input—a control valve oscillates—steam temperature swings—turbine trips—lost generation—30,000. The refurbished module saved you 1,200. The failure cost you 25× that.

What we provide as proof. For every IS200RAPAG1B we ship: a photo of the OEM packing slip, serial traceability to GE’s records, a full test report that includes input accuracy, EMI rejection, output accuracy at 1,000 Ω load, isolation test, and a sealed anti-static bag.

Pricing context. Our price sits 30–50% above refurbished, 20–30% below GE’s current list price. The delta covers our sourcing, our EMI and load testing, and a 12-month warranty.

Performance Benchmarks & Test Results

Data from our Mark VIe test rack (ambient 45 °C, supply +5.0 VDC, ToolboxST v5.3, precision source, load bank, EMI generator, hi-pot tester).

• Analog input accuracy: 4 mA—reading 4.00 mA. 12 mA—reading 12.01 mA. 20 mA—reading 20.00 mA.
• EMI rejection: 60 Hz noise injected—reading error <0.05% (improved from 0.2% on G1A).
• Analog output accuracy at 1,000 Ω load: 4 mA—output 4.00 mA. 12 mA—output 12.01 mA. 20 mA—output 19.99 mA. Within ±0.1%.
• Remote bus communication: Data transmitted correctly—no errors.
• Isolation test: 2,500 V RMS—no breakdown. Insulation resistance >100 MΩ.
• Thermal performance: At 60 °C ambient, the module ran at 60 °C—under the 85 °C rating.
• Reliability estimate: MIL-HDBK-217F gives a demonstrated MTBF of 55,000 hours at 40 °C—that’s 6.3 years.

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