Electronic Technologies ES3050, User Manual

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Digital equipotential tester consists of a host computer, monitoring software, test leads,
and communication lines.The mainframe large-screen LCD display is clear at a glance.Can
store 500 sets of data, resistance measurement range: 0.0001
Ω
~ 30K
Ω
, DC voltage range: 0.0
~ 1000V, AC voltage range: 0.0 ~ 750V.The monitoring software has on-line real-time
monitoring and historical query functions, dynamic display, alarm value setting and alarm
indication function, and functions such as reading, reviewing, saving, reporting and printing of
historical data.
III. Rang and Accuracy
Measureme
nt function
Range Accuracy Resolution
DC
resistance
0.1m
Ω
～
300.0m
Ω
±
1%rdg
±
10dgt 0.1m
Ω
301m
Ω
～
3000m
Ω
±
1%rdg
±
5dgt
1m
Ω
3.01
Ω ～
30.00
Ω
0.01
Ω
30.1
Ω
～
300.0
Ω
0.1
Ω
301
Ω ～
3000
Ω
1
Ω
3.01k
Ω
～
30.00k
Ω
10
Ω
DC voltage
0.1
～
100.0V AC
±
1.5%rdg
±
5dgt
0.1V
101
～
1000V 1V
AC voltage
0.1
～
100.0V AC
±
1.5%rdg
±
3dgt
0.1V
101
～
750V 1V
（
Remark
：
23
℃±
5
℃ ，
below 75%rh
）
IV .Technical Specifications
Function
Equipotential bonding resistance test between metal components, low-value
resistance test, resistance test of connecting conductors between ground and
ground electrodes, contact resistance test, etc.
DC resistance
range
0.0001
Ω
～
30.00K
Ω
Accuracy
±
1%rdg
±
5dgt
Resistance
resolution
0.0001
Ω
Test method Four-wire test
Test current
≥
1A
Open circuit
voltage
≤
7V
Capacity factor
Measuring capacity factor
≤
15W
DC voltage range 0.0V
～
1000V DC Accuracy
±
1.5%rdg
±
5dgt
DC voltage
resolution
0.1V
AC voltage range 0.0V
～
750V AC Accuracy
±
1.5%rdg
±
3dgt
AC voltage 0.1V