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Datasheet Testo 770-3 (EN) | Instruction Manual Testo 770-3 (EN)
The professional clamp meter Testo 770-3 is the high-performance flagship model engineered for non-contact electrical testing on tight and complex facility distributions. Featuring an innovative fully retractable pincer arm, it permits safe deployment inside dense control racks to isolate and measure targeted conductors. Equipped with advanced True RMS (TRMS) processing, a direct microamp range, and active, reactive, or apparent power diagnostics, it facilitates immediate automated link evaluation. Integrated Bluetooth connectivity enables wireless interfacing with smartphones or tablets running the Testo Smart App for automated graphing and technical documentation routines.
B2B Industrial Applications
- Power Generation and Load Analysis: Simultaneous evaluation of real-time active, reactive, and apparent power components up to 600 kW on main distribution paths.
- Electric Motor Profile Tracking: Precise capturing of machinery inrush currents and dynamic operational parameters using the enhanced TRMS detection framework.
- HVAC Automation Systems Inspection: Auditing ionization flame rods via the high-accuracy microamp range with simultaneous remote control data transmission.
Technical Specifications
| Voltage Measuring Range | 1.0 mV to 600.0 V AC / DC |
| Current Measuring Range (Clamp) | 0.1 to 600.0 A AC / DC |
| Current Measuring Range (Cables) | 0.1 to 600.0 microA AC / DC (microamp range) |
| Active / Reactive / Apparent Power | 0.1 W to 600 kW / 0.1 var to 600.0 kvar / 0.1 VA to 600.0 kVA |
| Resistance / Capacitance / Frequency | 0.01 Ohm to 60.0 MOhm / 2 nF to 60.00 mF / 0.01 Hz to 9999 kHz |
| Temperature Interface (Type K) | -20 to +500 deg C (requires standalone probe) |
| Wireless Interface | Bluetooth 4.0 link to mobile terminal running Testo Smart App |
| Overvoltage Safety Standard | CAT IV 600V / CAT III 1000V |
| Compliance Architecture | EN 61326-1, EN 61010-2-032, EN 61140 |
Package Contents
- Testo 770-3 industrial TRMS clamp meter
- 1x set of premium electrical measuring cables
- Calibration protocol
- 3x AAA micro batteries