UT270+ Series
Clamp Earth Ground Testers

UT270+ series can quickly and safely measure the grounding system without disconnecting circuit ground lines or the need of auxiliary electrodes. It can measure resistance from 0.01Ω with a resolution of 0.001Ω. These clamps’ double insulation design makes them durable tools for outdoor work and effective in blocking interference from the environment.

Models in UT270 series: UT276A+, UT278A+

Features of UT270+ Series Clamp Earth Ground Testers

Certificates: CE, UKCA

  • Auto range
  • Data hold
  • Data recall
  • LCD backlight
  • Resistance limit alarm
  • Low battery indication
  • Auto calibration

SPECIFICATIONS

Specifications of UT270+ Series Clamp Earth Ground Testers

Specifications Range UT276A+ UT278A+
Earth Ground Resistance (Ω) 0.01~0.099Ω ±(1%+0.01) ±(1%+0.01)
0.1~0.99Ω ±(1%+0.01) ±(1%+0.01)
1~49.9Ω ±(1%+0.1) ±(1%+0.1)
50~99.5Ω ±(1.5%+0.5) ±(1.5%+0.5)
100~199Ω ±(2%+1) ±(2%+1)
200~395Ω ±(5%+5) ±(5%+5)
400~590Ω ±(10%+10) ±(10%+10)
600~800Ω ±(20%+20)
600~1000Ω
800~1200Ω ±(25%+30)
Leakage current (A) 0mA~9mA ±(2.5%+1mA)
10mA~99mA ±(2.5%+5mA)
100mA~299mA ±(2.5%+10mA)
0mA~299mA
0.3A~2.99A ±(2.5%+0.1A)
3A~9.9A ±(2.5%+0.3A)
10A~20A ±(2.5%+0.5A)
3A~30A
Display count 4 digits LCD display
Jaw opening 32mm 32mm
Visual and audible alarm √ √
Auto power off √ √
Jamming signal recognition √ √
Over-range display √ √
Data storage 300 300
Display type EBTN EBTN
Ω+A display √
General Characteristics
Power 1.5V battery (LR6) x 4
Display 47mm x 28.5mm
Product net weight 1.18kg
Product size UT276A+/278A+: 285mm x 85mm x 56mm
Standard accessories Batteries, test ring, English manual
Standard individual packing Gift box, tool box
Standard quantity per carton 1pcs
Standard carton measurement 370mm x 110mm x 300mm
Standard carton gross weight UT276A+/278A+: 2.6kg

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