UNI-T TU13BA, Руководство по эксплуатации

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UNI-T
UT 139A/B/C OPERATING MANUAL
2. AC voltage measurement
Range Accuracy
Resolution
UT139A UT139B
UT139C
UT139A
UT139B/C
20.00mV 40.00mV 60.00mV
+ (1 .0 % + 3 )
+ (1 .0 % + 3 )
10pV
200.OmV 400.OmV 600.OmV 0.1 mV
2.000V 4.000V 6.000V
± (0 .8 % + 3 )
1 mV
20.00V 40.00V 60.00V 10mV
200.0V 400.0V 600.0V 0.1V
600V 600V 600V ± (1 .2 % + 3 ) ± (1 .0 % + 3 ) 1V
V.F.C 2 00 .0V -6 0 0V 0.1/1V
± (4.0 % + 3 )
A Input impedance: about 10MQ.
Display the true RMS. Frequency response: UT139A 45~400Hz, UT139B/C 45~1 kHz.(VFC: 45~400Hz)
Assurance of accuracy:5~100% range, an allowance of <10 words of residual reading for short-circuit.
It will be up to 3.0 when AC crest factor reaches full value (with except for 600V range, which is up to 1.5 when
the range reaches the full value). Maximum input voltage: 600Vrms
3. Resistance measurement
Range Accuracy
Resolution
UT139A UT139B UT139C UT139A UT139B/C
200.0Q* 400.0Q* 600.00*
+ (1 .0 % + 2 )
+ (1 .0 % + 2 ) 0.10
2.000kQ 4.000k0 6.000k0
+ (0 .8 % + 2 )
10
20.00kQ 40.00k0 60.00k0 100
200.OkO 400.OkO 600.OkO 1000
2.000MQ 4 .OOOMO 6 .OOOMO + (1 .2 % + 3 ) 1kO
20.00MQ 4Q.OOMO 6Q.OOMO + (1 .2 % + 3 ) + (1 .5 % + 5 ) 10k0
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UT 139A/B/C OPERATING MANUAL
UNI-T
A Range: measured value = displayed value - short-circuit value of test pen.
*. Open-circuit: about *1V
*. Overload protection: 600V-PTC
4. •*)) Circuit on-off, -H-diode measurement
Range
Resolution Remark
• » )
0.10
Circuit breakage resistance value is set as: > 150 Q, buzzer is soundless.
Good conductivity is set as: ^ 1 0 Q buzzer sounds.
-w -
1 mV
Open circuit voltage is about 2.1 V(UT139A), 3.2V(UT139B/C)
Normal voltage value of silicon PN junction is about 0.5~0.8V.
A Overload protection: 600V-PTC
5. Capacitance Measurement (Only applicable for UT139B/C)
Range Resolution Accuracy
9.999nF 1 pF
Under REL status: ±(4%+10)
99.99nF~999.9|jF 10pF~0.1 |JF ±(4% +5)
9.999mF~99.99mF
1 |
j
F ~ 1 0
m
F + 10% (^2m F)
A
Overload protection: 600V-PTC
For capacitor ^ 1 pF, it is recommended to adopt REL measurement mode to ensure measurement
accuracy.
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