Overview
The Tektronix A6901 ground isolation monitor is a precision safety device that connects between mains power and test equipment without establishing a protective ground connection. This isolation capability allows engineers to reference measurements to low voltage instead of ground, while simultaneously breaking ground loops that can introduce noise and measurement error into critical testing operations.
Key Features
- Dual-voltage input support (115V AC and 230V AC) for global compatibility
- 6 amp output capacity suitable for standard laboratory and industrial test equipment
- Monitors floating equipment ground voltage in real-time
- Enables safe ground-free measurement references without isolation transformers
- Prevents ground loop noise and interference in sensitive measurements
- Standalone operation—no software or configuration required
Technical Specifications
- Input Voltage (AC): 115V and 230V selectable
- Output Current Rating: 6A
- Ground Voltage Monitoring: Real-time floating ground detection
- Safety Function: Floats equipment ground to break ground loops
- Manufacturer: Tektronix, Inc.
- Model: A6901
- Operating Condition: Used, tested and fully functional
Typical Applications
- Oscilloscope and spectrum analyzer grounding in laboratory environments
- Electronic equipment repair and troubleshooting where ground isolation is required
- Power supply testing and measurement without common-mode ground interference
- Circuit board testing and validation requiring floating references
- EMI/RFI mitigation in precision measurement setups
Compatibility & Replacements
Compatible With
- Tektronix oscilloscopes and test instruments
- Most laboratory-grade test and measurement equipment
- Standard 115V AC and 230V AC mains power supplies
- Equipment requiring floating ground reference capability
Replaces / Drop-In Replacement For
The A6901 is a legacy Tektronix accessory. Modern equivalent ground isolation solutions may include isolation transformers or standalone isolation modules from current equipment manufacturers. Verify compatibility with your specific test setup before ordering.
Works With
- Any test equipment with standard mains power input (115V or 230V AC)
- Equipment requiring non-grounded operation for measurement accuracy
- Systems where ground loop elimination improves signal integrity
