Sunsky 4100 Quick Start Manual

4100
Digital Ear th Resistance Tester
A. General Introduction
B. Safety Rules
C. Performance Features
D. Technical Specification
E. Panel Description
F. Operation Instruction
G. Replacing Battery
. Accessories
H
A. General Introduction
Digital Earth Resistance Tester is a new generation
tester for electrician practice which is developed by our
company in recent years. The circuit, structure and
technique of traditional earth resistance tester have
been improved and the new design is both fine-looking
and practical. This one has more complete functions,
higher accuracy, more convenient and reliable for
operation and more suitable for outdoor use with dust
and wet proof structure. It can test earth resistance of
various earth systems including power systems, electric
equipments, lightning conductors as well as resistance
value of low resistance conductor and AC voltage test.
LED red lighting off indicates deficiency of 1.5V battery.
6. Response time: measure earth resistance, about 5
seconds. Measure earth voltage, about 2 seconds.
7.Withstand voltage: AC 500V, 1 minute between
circuit and outer casing.
8. Overload protection: on earth voltage, can withstand
300V AC 1 minute . on earth resistance, can withstand
（ ）
200V AC 10 seconds .
（ ）
9. Power supply,six 1.5V AA batteries ,one 12V battery
23A .
（ ）
10.Dimensions:150×100×70mm.
11.Weight: about 680g including battery .
（
12. Working environment:
Working temperature:0°C-40°C
Storage temperature: - 10°C-50°C relative humidity < 85%
Ensured accurate temperature:23°C±5°C
relative humidity < 80%
D. Technical Specification
Earth Resistance
Range accuracy
20 2 % r d g + 0 . 1
Ω
2 0 0
Ω
±2 % r d g + 3 d g t
20 0 0 Ω
Please note that measurement difference created by
auxiliary earth resistance is 0-10
Earth Voltage(AC)
Range accuracy
±3%rdg+5dgt
30V
Contents
）
relative humidity < 80%
resolution
0 . 0 1
Ω Ω
0 . 1
Ω
1Ω
Ω Ω
≤ 2k
resolution
0.1V
B. Safety Rules
1. Please read this manual carefully before use.
2. It should not be used before placing the back cover
back to avoid risk of electric shock.
3. Please do not touch lead terminal and circuit under
test to avoid electric shock.
4. Please make sure the range select switch setting
within the proper range before test.
5. Make sure the coupler plug of lead inserted in the
terminal tightly.
6. When the tester is wet, do not use it or replace
battery.
7. Please do not turn the switch during test.
8. Please do not test in flammable places since
sparkles may cause explosion.
9. Please stop use when metal is exposed due to
breakage of casing or testing wire. Make sure the
isolation skin of testing wire is intact before use.
10. Please make sure the testing wire has been
removed from testing terminal and the range select
switch is on off position before replacing battery.
11. Please make sure the range select switch is on off
position after use.
12. Replace battery when
the battery indicator light is off to ensure testing
accuracy. Please remove the battery if not use it for long
time.
C. Performance Features
1. Measuring range of earth resistance: 0-2000Ω.
2. Measuring range of earth voltage: 0-30V.
3.LED green light indicates normal operating mode.
4.31/2 digit LCD display for more direct and convenient
reading.
5. on LCD indicates deficiency of 12V battery.
E. Panel Description
①
②
③ ④ ⑤
①
LCD display
②" " （
E port earth electrode
③" " （
P port electric potential pole
④" " （ ）
C port current pole
⑤" " （ ）
V port voltage pole
⑥
Function switch.
⑦
HOLD data holding switch
⑧
TEST testing button
⑨
POWER power indicator light (red)
⑩
OK operation indicator light (green)
F. Operation Instruction
a.Battery Voltage Inspection
No symbol on LCD indicates 12V battery is good.
symbol on LCD means 12V battery is required to replace.
b. 3-wire Earth Resistance Test
NOTE: maximum 50V voltage may be generated
between E-C or E-P terminals when testing earth
！
resistance
Please do not touch testing lead to avoid electric
shock.
Please make sure testing wire plug insert in testing
terminal thoroughly before testing since loose
connection may cause error in testing result.
shown on tester or
⑩ ⑨
⑧
⑦
⑥
）
）
.