FoxCart N3102-D11839-00 Replacement DC Voltmeter, 0 to 40V DC
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The FoxCart N3102-D11839-00 replacement DC voltmeter is a 0 to 40V DC analog gauge designed for FoxCart aircraft ground power units (GPUs). It provides accurate voltage monitoring to ensure proper GPU output during aircraft servicing. This replacement voltmeter restores reliable system feedback and maintains safe, compliant operation of your FoxCart GPU.
| General Information | |
|---|---|
| Part # | N3102-D11839-00 |
| Manufacturer | Foxcart |
| Shipping Information | |
|---|---|
| Product Weight | 0.6 lbs. |
| Product Dimensions | 4 x 4 x 3 in. |
| ECCN | EAR99 |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
The N3102-D11839-00 voltmeter is designed for use on select FoxCart ground power units, including various 60 Hz GPU models. Because GPU configurations vary by production year and electrical design, compatibility depends on the specific unit. If you're unsure whether this voltmeter is compatible with your FoxCart system, our team can confirm compatibility before you make a purchase.
This replacement voltmeter measures 0 to 40 volts DC, allowing technicians to verify GPU output during operation. The wide scale provides clear, at-a-glance voltage readings to ensure the unit is supplying the correct power level to the aircraft. Accurate voltage monitoring helps prevent electrical issues and supports safe ground servicing.
Yes. This voltmeter is a genuine FoxCart OEM replacement part, ensuring it meets factory specifications for accuracy, durability, and electrical compatibility. Using OEM instrumentation helps maintain proper GPU performance and reduces the risk of calibration or fitment issues.
A voltmeter should be replaced if it becomes inaccurate, unresponsive, fogged, physically damaged, or begins to drift from known voltage readings. Faulty voltage indication can result in improper GPU operation and safety concerns. Replacing a defective meter ensures the unit continues to deliver the correct output to the aircraft's electrical system.
Most FoxCart replacement voltmeters are factory-calibrated and ready for installation. However, technicians should verify readings after installation to confirm proper operation with the GPU’s electrical system. Any discrepancies may indicate wiring issues or the need for system-level calibration checks.
Installation is generally straightforward, requiring only basic tools to remove the old gauge and secure the new one in place. Proper wiring alignment is essential to ensure accurate readings and secure terminal connections. A qualified technician or electrician should perform installation to comply with facility and equipment safety standards.
Common causes include vibration, ramp-related impacts, exposure to moisture, age-related wear, and electrical surges. GPUs operate in demanding environments, making instrument panel components especially susceptible to gradual degradation. Regular inspections help catch faults early, before they affect GPU reliability.
Accurate voltage monitoring ensures the GPU is delivering stable DC power to the aircraft, protecting onboard systems from under-voltage or over-voltage conditions. This reduces risk during engine starts, avionics operation, and ground checks. A functional voltmeter is essential for compliant, safe ground support operations.
