UT3550 Battery Tester Users Manual
27
Technical Index
8.1
Technical Index of Product
Figure 8-1 Technical Index
Function
Range No.
Range
Resolution
Accuracy
Measuring
current
Description
Resistance
Measuremen
t
0
3m
Ω
1
μΩ
±
0.5%rdg.
±
5dgt
150mA
Measuring current
frequency
：
1kHz
±
30Hz
1
30m
Ω
10
μΩ
150mA
2
300m
Ω
100
μΩ
15mA
3
3
Ω
1m
Ω
1.5mA
4
30
Ω
10m
Ω
150uA
Voltage
Measuremen
t
Range
name
Range
Resolution
Accuracy
Description
0
10V
100
μ
V
±
0.05%rdg.
±
5dgt
/
1
100V
1mV
Display
3.5 inch LCD d0.96 inch OLED on the top
Range Mode
Auto and Manual
（
resistance and voltage
）
Calibration
Short circuit full range to zeroed
Testing Speed
1/s
（
manual range
）
Sorting Function
It has three output situations: exceed resistance and voltage upper limit/
exceed resistance and voltage low limit and conform
Sorting result has two output situations: PASS and FAIL
Beep
OFF, OK, NG
Comparison Mode
Absolute deviation
（
ABS
）
, relative deviation
（
PER
）
Direct-reading
（
SEQ
）
Other Function
Lock keypad, U disk storage, keypad tone, Chines/English language,
screenshot
Test Terminal
Four-terminal test method
Trigger
Internal, manual and remote
Storge
The maximum storge is 500 groups, support USB to copy data
Interface
Type-C interface(communication), USB interface(storage), Charging interface
Upper-computer Software
SCPI
Charging Time
<5 hour
Operating Time
About 5 hour
（
20% brightness display
）
Power
The maximum 5VA
Power Supply
7.4V
，
2000mAh rechargeable lithium battery or 9VDC 2A power adapter
Preheating Time
At least 15 minute
Temperature/Humidity Index
Temperature
：
18
℃
~28
℃，
Humidity
：
<65%RH
Operating Temperature/Humidity
Temperature
：
0
℃
~40
℃，
Humidity
：
10~80%RH
Storage Temperature/Humidity
Temperature
：
-20
℃
~60
℃，
Humidity
：
10~90%RH
