GE IS200TBAOH1A Mark VIe | New Surplus Stock

Description

Product Introduction

The GE IS200TBAOH1A is the turbine bearing analyzer output module for the Mark VIe system—it retransmits vibration and temperature signals to external monitoring systems. If you’ve got bearing vibration data that needs to go to a separate vibration monitor, PLC, or data recorder, this module provides the isolated 4–20 mA outputs you need.

The “TBAOH1” designation tells you this is a turbine bearing analyzer output module. The “A” is the base revision. The module has eight isolated analog outputs (4–20 mA) that can retransmit vibration and temperature signals to external systems. It has 12-bit resolution and programmable output ranges. All outputs are isolated to 2,500 V.

Key Technical Specifications

Quality Inspection Process (SOP Transparency)

The TBAOH1A has eight analog outputs—our 26-point inspection verifies accuracy, output range, and isolation.

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 “–TBAOH1A” 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 500 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 TBAOH1A is an output module—installation mistakes are usually about load and wiring.

Output Load—500 Ω Maximum. The outputs can drive up to 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. The output range is programmable. Set it to match your monitoring system.

Grounding—Outputs Share a Common. The outputs share a common return. If you need isolated outputs, use separate isolators.

ESD. The output circuits are sensitive. Strap up.

New Original vs. Refurbished: Why It Matters

The TBAOH1A has precision output circuits—refurbishers often can’t verify the accuracy.

What “New Original (New Surplus)” means. This IS200TBAOH1A 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 drift with age. A refurbished TBAOH1A may have drifted accuracy. I’ve tested refurbished TBAOH1A units where the output was off by 0.2 mA. Failure rate on refurbished bearing analyzer 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 IS200TBAOH1A we ship: a photo of the OEM packing slip, serial traceability to GE’s records, a full test report that includes output accuracy, 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 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 ±0.1%.
• Output accuracy—12 mA: Output 12.01 mA—within ±0.1%.
• Output accuracy—20 mA: Output 20.00 mA—within ±0.1%.
• Load test: 500 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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