GE IS200TBCIH1BCD Mark VIe | New Surplus Stock

Description

Product Introduction

The IS200TBCIH1BCD is the highest-accuracy bearing current input module in the Mark VIe line—precision cold-rated amplifiers deliver ±0.02% accuracy at 25 °C and ±0.15% across the full –40 to +70 °C range. If your bearing monitoring requires the best possible accuracy, this is the module that delivers it.

The “BCD” suffix combines high-accuracy (B), extended-temperature (C), and enhanced diagnostics (D). The input amplifiers are precision cold-rated parts with a low temperature coefficient. The enhanced loop diagnostics work at temperature extremes. The board has conformal coating. The rest is the same: eight inputs, 16-bit resolution, 2,500 V isolation.

Key Technical Specifications

Quality Inspection Process (SOP Transparency)

The TBCIH1BCD gets the most rigorous thermal chamber treatment—our 32-point inspection verifies the precision accuracy and diagnostics at –40 °C and +70 °C.

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 “–TBCIH1BCD” clearly.

Visual Inspection. Magnifying lamp, full board scan. Conformal coating must be continuous. The precision cold-rated amplifiers are visually confirmed. The 96-pin backplane connector shows zero wear.

Live Functional Test. Mark VIe test rack with a precision current source (4–20 mA), reference ammeter, diagnostic test jig, and Tenney chamber.

• Cold soak (4 hours at –40 °C): Accuracy test—4 mA, 12 mA, 20 mA—within ±0.15%. Loop diagnostics—open circuit and short circuit detection.
• Hot soak (4 hours at +70 °C): Same tests—specs must hold.
• Isolation test: 2,500 V RMS—no breakdown.
• Thermal cycle: 3 cycles from –40 to +70 °C.
• 24-hour soak at 50 °C.

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 current accuracy at extremes, loop diagnostics, isolation test, thermal cycle log, and a photo.

Field Replacement Pitfalls

The TBCIH1BCD has the highest accuracy—installation mistakes are similar to other current input modules.

Loop Power—External Supply Required. You need an external 24 VDC supply for the transmitters.

Loop Diagnostics—Enable Them. The diagnostics work at –40 °C. Keep them enabled.

Cold Temperature Input Drift—The “BCD” Holds Accuracy. The precision cold-rated amplifiers maintain ±0.15% accuracy at –40 °C. But the field transmitter might drift—use a transmitter rated for –40 °C with similar accuracy.

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

ESD. The precision input circuits are sensitive. Strap up.

New Original vs. Refurbished: Why It Matters

The TBCIH1BCD has precision cold-rated amplifiers—refurbishers can’t add these.

What “New Original (New Surplus)” means. This IS200TBCIH1BCD came from GE’s factory with the precision cold-rated amplifiers and coating. We break the seal only for testing.

Refurbished risk in plain terms. A refurbisher may buy a standard TBCIH1A, clean it, and sell it as a “BCD.” At –40 °C, the standard amplifiers drift—the accuracy is 0.5% instead of 0.15%. I’ve tested refurbished “BCD” units that were actually standard TBCIH1As—they failed the cold soak accuracy test. Failure rate on refurbished high-accuracy modules runs 5× higher than new.

Real cost of a refurbished failure. A bearing temperature reading is off by 2 °C at –35 °C—bearing damage goes undetected—bearing failure—100,000. The refurbished module saved you 900. The failure cost you 110× that.

What we provide as proof. For every IS200TBCIH1BCD we ship: a photo of the OEM packing slip, serial traceability to GE’s records, a full test report that includes current accuracy at –40 °C and +70 °C, loop diagnostics, isolation test, thermal cycle log, 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 extended-temperature precision testing, and a 12-month warranty.

Performance Benchmarks & Test Results

Data from our Mark VIe test rack, environmental chamber-controlled. Firmware v5.3.

• Accuracy—4 mA at –40 °C: Reading 4.00 mA—within ±0.15%.
• Accuracy—12 mA at –40 °C: Reading 12.01 mA—within ±0.15%.
• Accuracy—20 mA at –40 °C: Reading 20.00 mA—within ±0.15%.
• Accuracy at +70 °C: Within ±0.15%.
• Open circuit detection at –40 °C: Detected.
• Short circuit detection at –40 °C: Detected.
• Isolation test: 2,500 V RMS—no breakdown. Insulation resistance >100 MΩ.
• Thermal performance: At 70 °C ambient, the module ran at 54 °C—under the 85 °C rating.
• Reliability estimate: MIL-HDBK-217F gives a demonstrated MTBF of 60,000 hours at 40 °C—that’s 6.8 years.

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