GE IS200TBAOH1B Mark VIe | New Surplus Stock

Description

Product Introduction

The IS200TBAOH1B is the revision B version of the turbine bearing analyzer output module. GE improved the output drive capability from 500 Ω to 750 Ω and enhanced the accuracy for better signal retransmission. If your bearing vibration and temperature data needs to go to external systems over long cable runs, this is the output module that gives you the extra drive capability.

The “TBAOH1B” designation tells you this is the revision B output module. The module has eight isolated analog outputs (4–20 mA) that can drive up to 750 Ω loads. It has 12-bit resolution and improved accuracy. All outputs are isolated to 2,500 V.

Key Technical Specifications

Quality Inspection Process (SOP Transparency)

The TBAOH1B gets the same test regimen as the H1A, plus a 750 Ω load test.

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 “–TBAOH1B” clearly.

Visual Inspection. Magnifying lamp, full board scan. The output circuits are inspected for rework. The 96-pin backplane connector shows zero wear.

Live Functional Test. Mark VIe test rack with a precision current meter and load bank.

• Output test: Command 4 mA, 12 mA, and 20 mA—verify accuracy.
• Load test: Verify the outputs can drive up to 750 Ω.
• 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 output accuracy, load test, isolation test, and a photo.

Field Replacement Pitfalls

The TBAOH1B has improved load capability—installation mistakes are similar to the H1A.

Output Load—750 Ω Maximum. The outputs can drive up to 750 Ω—improved from 500 Ω. If your load is higher, use an external amplifier.

Wiring—Use Shielded Cable. Use shielded cable and ground the shield at one end only.

Output Range—Program It. Set the output range to match your monitoring system.

Grounding—Outputs Share a Common. Use separate isolators if you need isolated outputs.

ESD. The output circuits are sensitive. Strap up.

New Original vs. Refurbished: Why It Matters

The TBAOH1B has improved accuracy and load drive—refurbishers often can’t verify both.

What “New Original (New Surplus)” means. This IS200TBAOH1B came from GE’s factory, never mounted. The output circuits are factory-calibrated. We break the seal only for testing.

Refurbished risk in plain terms. The output circuits can degrade. A refurbished TBAOH1B may not drive 750 Ω properly. I’ve tested refurbished TBAOH1B units where the load capability was reduced. Failure rate on refurbished output modules runs 4× higher than new.

Real cost of a refurbished failure. A vibration signal is retransmitted incorrectly—external monitor shows the wrong reading—operator misses a bearing issue—bearing failure—100,000. The refurbished module saved you 700. The failure cost you 142× that.

What we provide as proof. For every IS200TBAOH1B we ship: a photo of the OEM packing slip, serial traceability to GE’s records, a full test report that includes output accuracy, 750 Ω load test, 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 output 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 current meter, load bank, hi-pot tester).

• Output accuracy—4 mA: Output 4.00 mA—within ±0.05%.
• Output accuracy—12 mA: Output 12.01 mA—within ±0.05%.
• Output accuracy—20 mA: Output 20.00 mA—within ±0.05%.
• Load test: 750 Ω load—output maintained accuracy.
• Isolation test: 2,500 V RMS—no breakdown. Insulation resistance >100 MΩ.
• Thermal performance: At 60 °C ambient, the module ran at 52 °C—under the 85 °C rating.
• Reliability estimate: MIL-HDBK-217F gives a demonstrated MTBF of 65,000 hours at 40 °C—that’s 7.4 years.

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