2-3 Direct current
Range
Resolution
Accuracy
UT151A UT151B
UT151C
UT151D UT151E
(0.8%+1)
(0.8%+1)
200 µA
2 mA
20 mA
200 mA
10 A
0.1µA
1µA
10µA
100µA
10 mA
(2.0%+5)
(1.5%+1)
Overloading protection: uA, mA input: 200 mA /250V Ö 5 × 20 mm
A input end: 10A/250V Ö 6 × 25 mm
Maximum input current: 10A (For current over 5A, measuring time shall not exceed 15
seconds)
Measured voltage drop: 200mV for full range
2-4. Alternating current
Range
Resolution
Accuracy
UT151A UT151B
UT151C
UT151D UT151E
200 µA
2 mA
20 mA
200 mA
10 A
0.1µA
1µA
10µA
100µA
10 mA
(3.0%+5)
(1.8%+3)
(1.0%+3)
(1.0%+3)
(1.0%+3)
Overloading protection: uA, mA input: 200 mA /250V Ö 5 × 20 mm
A input end: 10A/250V Ö 6 × 25 mm
Maximum input current: 10A (For current over 5A, measuring time shall not exceed 15
seconds)
Measured voltage drop: 200mV for full range
Display: Mean value (sine-wave effective value)
2-5. Resistance
Range
Resolution
Accuracy
UT151A UT151B
UT151C
UT151D UT151E
(1.2%+2)
(1.0%+2)
(1.2%+2)
200 Ù
2 kÙ
20 kÙ
200 kÙ
2 MÙ
20 MÙ
200 MÙ
0.1 Ù
1 Ù
10 Ù
100 Ù
1 kÙ
10 kÙ
100 kÙ
[5.0% (reading-10)+10] [5.0% (reading-10)+10]
(1.5%+2)
Open circuit voltage: 700mV (for range of 200MÙ, the open circuit voltage is about 2.8V).
Overloading protection: 250V for all ranges, DC or AC effective value
Notice: At 200 MÙ shift, the pen is short-circuited. It is normal for the display to show 10
digits. During measurement, these 10 digits shall be subtracted from the reading.
Relative humidity for measurement in 200MÙ shift 65%
(0.8%+1)