UT276A Clamp Earth Ground Tester

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. UT275 can also measure leakage current up to 30A. These clamps’double insulation design makes them durable tools for outdoor work and effective in blocking interference signals from the environment.

Description

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Basic Features

1. Resistance limit alarm
2. Auto range
3. Low battery indication
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Tech. Spec

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Specifications

Range

UT276A

Earth Ground Resistance (Ω) 0.01~0.099Ω ±(1%+0.01)
0.1~0.99Ω ±(1%+0.01)
1~49.9Ω ±(1%+0.1)
50~99.5Ω ±(2%+0.5)
100~199Ω ±(3%+1)
200~395Ω ±(6%+5)
400~590Ω ±(10%+10)
600~800Ω ±(20%+20)
800~1200Ω ±(25%+30)

Features

Display count 4 digits LCD display
Jaw opening 32mm
Resistance measurement
frequency
>1kHz
Single measurement time 1 second
Current limit alarm 1mA~499mA
Current measurement
frequency
50Hz/60Hz
Auto power off
RS-232
Visual and audible alarm
Jamming signal recognition
Over-range display
Data storage 99

General Characterisitics

Power 1.5V battery (LR6) x 4
Display 47mm x 28.5mm
Product color Red and grey
Product net weight 1160g
Product size 285mm x 85mm x 56mm
Standard accessories Batteries, test ring, tool box
Standard individual packing Gift box, English manual
Standard quantity per carton 6pcs
Standard carton measurement 610mm x 375mm x 320mm
Standard carton gross weight 18kg
Optional accessories RS-232 interface cable, PC software CD

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Models & Comparison

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Specifications

Range UT273 UT275 UT276A
Earth Ground Resistance (Ω) 0.01~0.099Ω ±(1%+0.01) ±(1%+0.01) ±(1%+0.01)
0.1~0.99Ω ±(1%+0.01) ±(1%+0.01) ±(1%+0.01) ±(1%+0.01)
1~49.9Ω ±(1.5%+0.1) ±(1.5%+0.1) ±(1%+0.1) ±(1%+0.1)
50~99.5Ω ±(2%+0.5) ±(2%+0.5) ±(2%+0.5) ±(2%+0.5)
100~199Ω ±(3%+1) ±(3%+1) ±(3%+1) ±(3%+1)
200~395Ω ±(10%+5) ±(10%+5) ±(6%+5) ±(6%+5)
400~590Ω ±(20%+10) ±(20%+10) ±(10%+10) ±(10%+10)
600~800Ω ±(20%+20) ±(20%+20)
600~1000Ω ±(25%+20) ±(25%+20)
800~1200Ω ±(25%+30) ±(25%+30)
Leakage current (A) 0mA~9mA ±(2.5%+1mA)
10mA~99mA ±(2.5%+5mA)
100mA~299mA ±(2.5%+10mA)
0mA~299mA ±(2.5%+2mA)
0.3A~2.99A ±(2.5%+100mA) ±(2.5%+0.1A)
3A~9.9A ±(2.5%+0.3A)
10A~20A ±(2.5%+0.5A)
3A~30A ±(2.5%+300mA) ±(2.5%+0.5A)

Features

Display count 10000 10000 4 digits LCD display
Jaw opening 28mm 28mm 32mm
Resistance measurement
frequency
>1kHz
Single measurement time 1 second
Current limit alarm 1mA~499mA
Current measurement
frequency
50Hz/60Hz
Auto power off
RS-232
Visual and audible alarm
Jamming signal recognition
Over-range display
Data storage 30 30 99

General Characterisitics

Power 1.5V battery (LR6) x 4
Display 47mm x 28.5mm
Product color Red and grey
Product net weight UT273/UT275: 1320g; UT276A/UT278A: 1160g
Product size UT273/UT275: 293mm x 90mm x 66mm; UT276A/UT278A: 285mm x 85mm x 56mm
Standard accessories Batteries, test ring, tool box
Standard individual packing Gift box, English manual
Standard quantity per carton UT273/UT275: 5pcs; UT276A/UT278A : 6pcs
Standard carton measurement UT273/UT275: 510mm x 375mm x 320mm; UT276A/UT278A: 610mm x 375mm x 320mm
Standard carton gross weight UT273/UT275: 15.2kg; UT276A/UT278A: 18kg
Optional accessories UT276A/UT278A: RS-232 interface cable, PC software CD

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