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BATTERY RESISTANCE TESTER - UT677A

Product Code: UT677C

Product Description:


The UT677 series is a device for assessing the condition of rechargeable batteries, including lead-acid and lithium types, by measuring their internal resistance and voltage. Using the AC four-terminal method, it accurately measures internal resistance without interference from lead resistance. Features include data storage, retrieval, alarms, auto shut-off, and strong anti-interference, making it essential for battery production, installation, and maintenance.

  • Battery internal resistance: 0-3Ω(4 ranges; 1μΩ)
  • Voltage(UT677A+): 0-70V
  • Voltage(UT677C): 0-120V
  • Manual & auto measurement
  • PC software and Bluetooth APP supported
  • Rechargeable Lithium Battery: 2600mAh
  • Auto power off and low battery indication
  • Fast response (200ms)
  • Test time: 2 seconds
  • Data hold and storage (500 sets)
  • CE certificated
Technical Specifications         
Function   Range    Resoluting
Battery Internal Resistance   0.000 mΩ to 3 mΩ / ±1 % fs. ±20 dgt   1 μ Ω
    3.000 mΩ to 30 mΩ / ±0.5 % fs. ±15 dgt.   10 μΩ
    3.000 mΩ to 300 mΩ / ±0.5 % fs. ±15 dgt.   100 μΩ
    300mΩ to 3 Ω / ±0.5 % fs. ±15 dgt.   1mΩ
Battery Voltage Range   0.000V to ±7 V / ±0.2 % fs. ±10 dgt.   1 mV
    7 V to 100.00V/ ±0.2 % fs. ±10 dgt.   10 mV
    100V to 120.00V/ ±0.2 % fs. ±10 dgt.   100 mV
 
 
 
Features      
Functions   Battery internal resistance measurement
    Battery voltage measurement
Battery types   Lead-acid battery, lithium battery
    and other types of batteries
Measurement methods    
Internal resistance   1kHz AC 4-terminal test method
Terminal voltage   3V max (Open circuit)
Test current   0 mA to 200 mA
    Range varying corresponding to varying
    test currents.
Refresh Rate   5 times / second
Anti interference   Yes
Automatic frequency tuning   920Hz to 1080Hz
Power supply   11.1V lithium battery 2600mAh
Input voltage max.   120VDC (between positive side and negative side)
Response time   200ms
Screen   3.5 inches (480*320 color screen)
Meter dimension (L x W x H)   170mm x 115mm x 65 mm
Data interface   Type C - Save test data and upload to PC
Bluetooth   YES
Data hold   Auto / Manual data hold
Data storage   500 sets
Measurement function   PASS, WARNING, FAIL
    Judgment thresholds can be preset
Low battery indication   YES, 5 battery level
Auto power off   YES (approx. 15 minutes)
Weight   674.0 grams (batteries included)
Temperature / Humidity   23℃ ±5℃ / <75%rh (for specified accuracy)
Working temperature   -10 to +40℃ / <80%RH
Storage temperature   -20℃ to 60℃ / <70%RH
Puncture test   AC 3700V / RMS (between circuit and case)
External magnetic field   ＜40A / m
Suitable for safety regulations   IEC 61010; CE certificated
Manufacturer   UNI-T
Manufacturer Part Number   UT677C