Description
Testo 770-1 Clamp Meter – Overview and Capabilities
The testo 770-1 clamp meter makes work significantly easier even in the most confined spaces. Thanks to the folding pincer jaw, which can fully retract into the housing, you can conveniently and neatly clamp tightly packed cables in switch cabinets, just like with a hook.
The instrument is simpler and more reliable to use: it automatically recognizes and selects the necessary measuring parameter. The backlit two-line display provides a clear and distinct view of the measured values.
Key Features
- Innovative Mechanism: Fully retractable (folding) pincer jaw for working with tightly packed cables.
- Automation: Automatic detection and selection of the measuring parameter (current type, resistance, continuity, diode check, capacitance).
- Current Measurement: Measurement of inrush current.
- RMS Measurement: Measurement of True Root Mean Square (True RMS).
- Display: Large two-line display with backlight.
Application Areas Overview
- Measurement of current consumption.
- Checking for the presence/absence of voltage.
- Measurement of air ionization in heating systems.
- Checking the continuity of switches.
- Measurement of the resistance of sensors or motor coils.
Technical Data (Order Number 0590 7701)
General Technical Data
| Weight: | 378 g |
| Dimensions: | 249 x 96 x 43 mm |
| Product Color: | black |
| Operating Temperature: | -10 … +50 °C |
| Storage Temperature: | -15 … +60 °C |
| Operating Humidity: | 0 … 80 % RH |
| Standards: | EN 61326-1; EN 61010-2-032; EN 61140 |
| Overvoltage Category: | CAT IV 600V; CAT III 1000V |
| Authorizations: | CSA; CE |
| Battery Type: | 3 AAA microcells |
| Display Type: | LCD |
| Display Size: | two lines |
| Interface: | 2 measuring sockets |
| Passive Resistance (AC/DC): | 11 MΩ |
DC Voltage Measurement
| Measuring range: | 1.0 … 600.0 V |
| Resolution: | max. 1 meas. value |
| Accuracy: | ± (0.8 % of meas. value + 3 Digit) |
AC Voltage Measurement
| Measuring range: | 1.0 meas. value … 600.0 V |
| Resolution: | max. 1 meas. value |
| Accuracy: | ± (1.0 % of meas. value + 3 Digit) |
DC Current Measurement
| Measuring range: | 0.1 … 400 A |
| Resolution: | max. 0.1 |
| Accuracy: | ± (2 % of meas. value + 5 Digit) |
AC Current Measurement
| Measuring range: | 0.1 … 400 A |
| Resolution: | max. 0.1 A |
| Accuracy: | ± (2 % of meas. value + 5 Digit) |
Resistance Measurement
| Measuring range: | 0.1 … 40.00 MΩ |
| Resolution: | max. 0.1 Ω |
| Accuracy: | ± (1.5 % of meas. value + 3 Digit) |
Capacitance Measurement
| Measuring range: | 10 nF … 100.0 µF |
| Resolution: | max. 0.01 nF |
| Accuracy: | ± (1.5 % of meas. value + 5 Digit) |
Frequency Measurement
| Measuring range: | 10 Hz … 100.0 kHz (assuming this is the correct range for frequency measurement) |
| Accuracy: | ± (0.1 % + 1 Digit) |
