The testo 770-3 clamp meter is the ideal clamp amperemeter for demanding measuring tasks in tight application environments. The movable pincer arm can be fully retracted into the instrument. This enables the instrument to grab tightly packed cables in a particularly accurate way.
In addition, more specialized applications can be handled using the clamp meter, such as starting current, power and µA measurements. The optionally available temperature adapter for thermocouple probes can be used to measure electrical parameters as well as temperatures (compatible type K thermocouple probe can be ordered separately).
The clamp amperemeter automatically detects and selects AC/DC and other parameters, such as resistance, continuity, diode and capacitance,. This makes operation easier and more reliable than ever before. Your readings are clearly and distinctly presented on the two-line display. In addition to this, the testo 770-3 offers a performance measurement function and can be connected via Bluetooth to the testo Smart App. In the App, the measurement curve can be displayed as a graph on your smartphone/tablet and directly documented in the report.
Delivery Scope
testo 770-3 TRMS clamp meter, including batteries, 1 set of measuring cables (0590 0010), instruction manual.
Technical Data
Temperature - TC Type K (NiCr-Ni)
Measuring range
-20 to +500 °C
Accuracy
±1 °C (0 to +100 °C)
Resolution
0.2 °C
DC voltage
Measuring range
1.0 to 600.0 V
Resolution
max. 1 mV
Accuracy
± (0.8 % of mv + 3 Digit)
AC voltage
Measuring range
1.0 mV to 600.0 V
Resolution
max. 1 mV
Accuracy
± (1 % of mv + 3 Digit)
DC current
Measuring range
0.1 to 600.0 A (clamp)
0.1 to 600.0 μA (measuring cables)
Resolution
0.1 (clamp)
0.1 (measuring cables)
Accuracy
± (2 % of mv + 5 Digit) (clamp)
± (2 % of mv + 5 Digit) (measuring cables)
AC current
Measuring range
0.1 to 600.0 A (clamp)
0.1 to 600.0 μA (measuring cables)
Resolution
0.1 A (clamp)
0.1 μA (measuring cables)
Accuracy
± (2 % of mv + 5 Digit) (clamp)
± (1.5 % of mv + 5 Digit) (measuring cables)
Resistance
Resolution
max. 0.01 Ohm
Measuring range
0.01 to 60.0 MOhm
Accuracy
± (1.5 % of mv + 3 Digit)
Capacitance
Resolution
max. 0.01 nF
Measuring range
2 nF to 60.00 mF
Accuracy
± (1.5 % of mv + 5 Digit)
Frequency
Resolution
max. 0.1 Hz
Measuring range
0.01 Hz to 9999 kHz
Accuracy
± (1 % of mv + 1 Digit)
Active Power
Measuring range
0.1 W to 600 kW
Accuracy
± (5 % of mv + 5 Digit)
Resolution
0.1 W
Reactive Power
Measuring range
0.1 to 600.0 kvar
Accuracy
± (10 % of mv + 5 Digit)
Resolution
0.1 var
Apparent Power
Measuring range
0.1 VA to 600.0 kVA
Accuracy
± 1 Digit
Resolution
0.1 VA
Direct current DC Voltage
Measuring range
0.1 W to 600.0 kW
Accuracy
± 1 Digit
Resolution
max. 0.1 W
Power Factor
Measuring range
-1.00 to +1.00
Accuracy
± (10 % of mv + 5 Digit)
Resolution
0.01
General technical data
Operating humidity
0 to 80.0 %RH
Weight
378 g
Dimensions
249 x 96 x 43 mm
Operating temperature
-10 to +50 °C
Connectable probes
1 x temperature probe (adapter required for type K thermocouples)
System requirements
requires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
