UNI-T UT39E - Diodes and Continuity Test; Frequency; Capacitance; Transistor Test

F. Diodes and Continuity Test
Function
Diode
Continuity
Buzzer
Range
Resolution
0.1mV
0.1Ω
Input Protection
250V rms
Remark
Open circuit
voltage
approx.2.8V
Approx. <70Ω
buzzer beeps
continuously
G. Frequency
Range
2kHz
20kHz
Resolution
0.0001kHz
0.001kHz
Accuracy
(2%+5)
(1.5%+5)
Overload Protection
250V rms
Remark:
l
l
Input Sensitivity: 200mV.
When the input voltage is 30V rms, no guaranteed
accuracy.
H. Capacitance
Range
2nF
20nF
200nF
20µF
Resolution
0.0001nF
0.001nF
0.01nF
0.001µF
Accuracy
(4%+10)
Overload Protection
250V rms
Remark:
Testing signal: approx. 400Hz, 40mV rms.
l
I. Transistor Test
Range
hFE
Remarks
Can measure NPN or
PNP transistor. Display
range: 0-1000β
Testing Conditions
Vce 2.8V
I bo 10µA
20
Model UT39E: OPERATING MANUAL