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Datasheet Testo 750-3 (EN) | Instruction Manual Testo 750-3 (EN)
The high-performance voltage tester Testo 750-3 is the premier voltmeter configuration engineered for reliable verification of electrical systems. Incorporating a unique patented all-round LED display with fibre-optic technology, it ensures ideal indication visibility from any angle. This high-tier instrument includes a secondary LC display for direct numerical evaluation alongside its diagnostic arrays. It features single pole phase testing, continuity testing, and rotating magnetic field testing for industrial machinery. Additionally, the integrated RC trigger function with vibrating load buttons permits risk-free testing of residual current circuit breakers while eliminating accidental triggering events.
B2B Industrial Applications
- De-energization Verification: Confirming absolute state lack of electrical power on heavy commercial machinery terminal grids.
- RCD Safety Evaluation: Employing the RC trigger function to verify the threshold compliance of residual current breakers in supply infrastructure.
- Three-Phase Motor Balancing: Determining the direct rotation parameters through comprehensive rotating magnetic field testing on power drives.
Technical Specifications
| Voltage Measuring Range | 10 to 690 V AC / DC |
| Measurement Accuracy | +-(3 % of mv + 5 Digits) |
| Measurement Resolution | 1 V |
| Compliance Standards | EN 61243-3:2014, EN 61326-1, EN 61010-1 |
| Secondary Screen Layout | One-line digital LCD display |
| Enclosure Protection Class | IP64 (dustproof and splash resistant) |
| Overvoltage Category Rating | CAT IV 600 V / CAT III 690 V |
| Authorizations and Marks | TUV, CSA, CE |
| Battery Configuration / Weight | 2x AAA micro batteries / 295 g |
Package Contents
- Testo 750-3 high-performance voltage tester
- 1x set of probe tip protectors
- Calibration protocol
- 2x AAA batteries