Multimetru masurare priza de pamant Clamp UNI-T UT278A impamantare PRAM

Clamp Earth Ground Tester UNI-T UT278A
Clamp Earth Ground Tester UNI-T UT278A

TECHNICAL SPECIFICATION
Earth Ground Resistance (Ω)
0.01Ω-0.099Ω ±(1%+0.01)
0.1Ω-0.99Ω ±(1%+0.01)
1.0Ω-49.9Ω ±(1%+0.1)
50Ω-99.5Ω ±(2%+0.5)
100Ω-199Ω ±(3%+1)
200Ω-395Ω ±(6%+5)
400Ω-590Ω ±(10%+10)
600Ω-800Ω ±(20%+20)
800Ω-1200Ω ±(25%+30)
Leakage Current (A)
0mA-9mA ±(2.5%+1)
10mA-99mA ±(2.5%+5)
100mA-299mA ±(2.5%+10)
0.30A-2.99A ±(2.5%+0.1)
3.0A-9.9A ±(2.5%+0.3)
10.0A-20.0A ±(2.5%+0.5)
3A-30A ±(2.5%+0.5)

FEATURES
Display Count 4
Auto Range √
Jaw Capacity 32mm
Single Measure Time 1s
Resistance Measurement Frequency ＞1KHz √
Current Measurement Frequency 50Hz/60Hz √
Resistance Limit Alarm 1Ω-199Ω √
Current Limit Alarm 1mA-499mA √
RS-232 √
Beeper and Light Alarm √
Jamming Signal Recognition √
Over-Range Display √
Low Battery Indication √
Data Logging 99

GENERAL CHARACTERISTICS
Power: 1.5V Alkaline Battery X4
LCD Size: 47mm X 28.5mm
Product Weight 1160g
Product Size 285mm X 85mm X 56mm

ACCESSORIES
Batteries, Test Ring, Tool Box

MANUFACTURER
UNI-TREND

Manual de utilizare 

https://www.uni-trend.com/uploadfile/cloud/English%20manual/General%20Meters/UT276A%20UT278A%20English%20Manual.pdf