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Home » Products » Clamp meters, multimeters and phase meters » Testo 770 – TRMS clamp meter

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Testo 770 – TRMS clamp meter

Order number: 0590 770X

testo 770-1 TRMS clamp meter, including battery, 1 set of measuring cables (0590 0010)

  • Category: Clamp meters, multimeters and phase meters
  • Branch: Refrigeration technology, Energy efficiency, Energy, Construction
  • Manufacturer: TESTO AG
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Brochure/Testo 770_EN

Description
Technical data
Description

The operation of the testo 770-1 clamp meter is also easier and more reliable than ever before. It automatically detects and selects AC/DC and other electrical parameters, such as resistance, continuity, diode and capacitance. In addition, you can also use it to measure the starting current. And the two-line display presents your readings clearly and distinctlvely. In addition to the standard functions of the testo 770-1 clamp meter, testo 770-2 offers a temperature adapter and measures current in the µA range.The supplied 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). In addition to this, the testo 770-3 offers a performance measurement function and can be connected via Bluetooth to the testo Smart Probes App. In the App, the measurement curve can be displayed as a graph on your smartphone/tablet and directly documented in the report.

  • Fully retractable pincer arm for maximum flexibility
  • Auto AC/DC
  • Large two-line display
  • Тemperature adapter for type K thermocouples (testo 770-2)
  • Measuring functions for starting current on electric motors and μA measurements (testo 770-2, testo 770-3)
  • Improved TRMS method (testo 770-3)
  • Bluetooth connection to your smartphone (with the testo Smart Probes App) (testo 770-3)
testo 770-1 TRMS clamp meter, including battery and 1 set of measuring cables – Order No. 0590 7701
testo 770-2 TRMS clamp meter, including batteries, 1 set of measuring cables and 1 x adapter for type K thermocouples – Order No. 0590 7702
testo 770-3 clamp meter with Bluetooth, 1 x set of measuring leads, carrying case, 3 x AAA batteries – Order No. 0590 7703 02
testo 770-3 clamp meter with Bluetooth, 1 x set of measuring leads, 1 x set of crocodile clips, 1 x set of micro clips, TC probe, magnetic holder, carrying case, 3 x AAA batteries – Order No. 0590 7703 03
The probes are not applicable to the model testo 770-1
Application

Technical data

DC voltage                                                   
Measuring range / Resolution – testo 770-1/2       
1 mV to 600.0 V / 1 mV
Measuring range / Resolution
– testo 770-3
1 mV to 600 V /1 mV
Accuracy
±(0.8 % of mv + 3 Digit)
AC voltage                          
Measuring range / Resolution
– testo 770-1/2   
1.0 mV to 600 V /1 mV
Measuring range / Resolution

– testo 770-3

1 mV to 600 V /1 mV
Accuracy
±(1.0 % of mv + 3 Digit)
± (0.8 % of mv + 3 Digit) – testo 770-3
DC current                                               
Measuring range / Resolution – testo 770-1/2   
0.1 to 400 A / 0.1 A
Measuring range / Resolution
– testo 770-3
0.1 μA to 600 A/ 0.1 μA
Accuracy
±(2 % of mv + 5 Digit
AC current                                              
Measuring range / Resolution – testo 770-1/2   
0.1 to 400 A / 0.1 A
Measuring range / Resolution
– testo 770-3
0.1 μA to 600 A/ 0.1 μA
Accuracy
±(2 % of mv + 5 Digit)
Resistance
Measuring range / Resolution – testo 770-1/2   
0.1 Ohm to 40.00 MOhm / 0.1 Ohm
Measuring range / Resolution

– testo 770-3

0.1 Ohm to 60.00 MOhm / 0.1 Ohm
Accuracy
±(1.5 % of mv + 3 Digit)
Capacitance
Measuring range / Resolution – testo 770-1/2     
10 nF to 100.0 μF / 0.01 nF
Measuring range / Resolution
– testo 770-3
2 nF to 60.00 mF /  0.01 nF
Accuracy
±(1.5 % of mv + 5 Digit)
Frequency                                               
Measuring range
0.01 Hz to 9999 kHz /
Accuracy
±(0.1 % + 1 Digit)
Temperature – TC Type K (NiCr-Ni)  
testo 770-2, testo 770-3        
Measuring range
-20 to +500 °C
Accuracy
±1 °C (0 to +100 °C)
Resolution
0.1 °C
Active Power   – testo 770-3
Measuring Range
0.1 W to 600 kW
Accuracy
± (5 % of mv + 5 Digit)
Resolution
0.1W
Reactive Power –  testo 770-3
Measuring Range
0.1 to 600.0 kVA
Accuracy
± (10 % of mv + 5 Digit)
Resolution
0.1 var
Apparent Power –  – testo 770-3
Measuring Range
0.1 VA to 600.0 kVA
Accuracy
1± Digit
Resolution
0.1 VA
Direct current DC Voltage  – testo 770-3
Measuring Range
0.1 W to 600.0 kW
Accuracy
± 1 Digit
Resolution
0.1W
Power Factor –  testo 770-3
Measuring Range
-1.00 to +1.00
Accuracy
± (10 % of mv + 5 Digit)
Resolution
0.01
Instrument and measurement functions                 
Diode test
yes
Continuity Testing
yes
Display lighting
yes
Hold
yes
MinMax
yes
True RMS
yes
Inrush current measurement
yes
Power Measurement – testo 770-3
yes
bluetooth – testo 770-3
yes
Temperature measurement with adapter – testo 770-2/3
yes
Warranty
2 years
Storage temperature
-15 to +60 °C
Weight
378 g
Overvoltage Category
CAT IV 600V; CAT III 1000V
Authorizations
TÜV; CSA; CE
Dimensions
243 x 96 x 43 mm
Operating temperature
-10 to +50 °C

Accessories

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Adapter for type K thermocouples

Order number: 0590 0021

Battery type 1 x lithium type: CR 2032 Weight 60 g Dimensions 75 x 72 x 21 mm Operating temperature -20 to +500 °C

Safety crocodile clips

Order number: 0590 0008

Set 4mm standard test leads (straight plug)

Order number: 0590 0012

Set of 4 mm standard measuring cables with straight plug

2 mm standard measuring cables (angled plug)

Order number: 0590 0010

Set of 2 mm standard measuring cables with angled plug

4 mm standard measuring cables (angled plug)

Order number: 0590 0011

Set of 4 mm standard measuring cables with angled plug

Transport bag for testo 755 / testo 770

Order number: 0590 0017

Measuring cable extensions (angled plug)

Order number: 0590 0014

Measuring cable extensions (straight plug)

Order number: 0590 0013

Crocodile clips

Order number: 0590 0009

Probes

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Spare meas. head Type K (NiCr-Ni)

Order number: 0602 0092

For pipe wrap probe, TC Type K Meas. Range -60 to +130 °C

Thermocouple with TC adapter

Order number: 0602 0644

Flexible, 800mm long, fiber glass, TC Type K (usable with handle part no. 0409 1092) Meas. Range -50 to +400 °C, class 2

Pipe wrap probe

Order number: 0602 4592

For pipe diameter 5 to 65 mm, with exchangeable measuring head. Meas. range short-term to +280°C, TC Type K Meas. Range -60 to +130

Clamp probe for measurements on pipes

Order number: 0602 4692

Pipe diameter 15 to 25 mm (max. 1"), meas. range short-term up to +130°C, TC Type K Meas. Range -50 to +100 °C

Waterproof surface probe with widened measurement tip for flat surfaces

Order number: 0602 1993

T/C Type K Meas. Range -60 to +400 °C,Accuracy Class 2      

Flat head surface probe with telescopic handle max. 680 mm

Order number: 0602 2394

For measurements at hard-to-access points, TC Type K Meas. Range -50 to +250 °C

Magnetic probe

Order number: 0602 4792

Adhesive force approx. 20 N, with magnets, for measurements on metal surfaces, TC Type K Meas. Range -50 to +170 °C

Magnetic probe

Order number: 0602 4892

Adhesive force approx. 10 N, with magnets, for higher temp., for measurements on metal surfaces, TC Type K Meas. Range -50 to +400 °C

Pipe wrap probe with Velcro strip

Order number: 0628 0020

For temperature measurement on pipes with diameter up to max. 120 mm, Tmax +120°C, TC Type K Meas. Range -50 to +120 °C

Fast-action surface probe with sprung thermocouple strip

Order number: 0602 0993

Bent, also for uneven surfaces, measurement range short-term to +500°C, TC Type K Meas. Range -60 to +300 °C,  Accuracy Class 2 Reaction time 3 s

Fast-action surface probe with sprung thermocouple strip

Order number: 0602 0393

Also for uneven surfaces, measurement range short-term to +500°C, TC Type K Meas. Range -60 to +300 °C Accuracy  Class 2 ¹? , Reaction time 3

Efficient, waterproof surface probe

Order number: 0602 0693

With small measurement head for flat surfaces, TC Type K Meas. Range -60 to +1000 °C

Robust air probe, T/C Type K

Order number: 0602 1793

Meas. Range -60 to +400 °C, 

Kits

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testo 570s Smart Vacuum Kit with clamp meter

Order number: 0564 5704

testo 570s digital 4-way manifold with lithium-ion rechargeable battery 2x testo 115i wireless clamp thermometers 1x testo 552i wireless vacuum probe 1x testo 770-3

Certificates

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ISO calibration certificate for clamp meters

Order number 0520 0770

DC voltage: Calibration at 12 measuring points AC voltage: Calibration at 19 measuring points Resistance: Calibration at 7 measuring points Capacitance: Calibration at 4

DAkkS calibration certificate for clamp meters

Order number 0520 0771

DC voltage: Calibration at 12 measuring points AC voltage: Calibration at 19 measuring points Resistance: Calibration at 7 measuring points Capacitance: Calibration at 4
testo-770-1_B
testo-770-1_C
testo-770-1-D
testo-770-1-E
testo-770-1-F
testo-770-3-2024-eshop-set1-2000x1500
testo-770-3-2024-eshop-premiumset-2000x1500

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