Users manual
ET1260B and ET1260A
6 1/2 Digit Multimeter
47
6.2 Uncertainty Indicators
Accuracy is expressed by ± (ppm measurement value + ppm measurement range) [1]
Function
Measurement
range [2]
Resolution
[5]
Test current, load
voltage, etc.
24-hour [3]
(23±1
℃
)
90
days(23±5
℃
)
1
year
(23±5
℃
)
Temperature
coefficient
0°-18°/28-55°
DC voltage
100 mV
100 nV
10MΩ or>10 GΩ
30+30
40+35
50+35
5+5
1 V
1 uV
10MΩ or>10 GΩ
20+6
30+7
40+7
5+1
10 V
10 uV
10MΩ or>10 GΩ
15+4
20+5
35+5
5+1
100 V
100 uV
10 MΩ ± 1%
20+6
35+6
40+6
5+1
1000 V
1 mV
10 MΩ ± 1%
20+6
35+6
40+6
5+1
DC current
10uA
10pA
< 140mV
100+200
400+250
500+250
20+30
100uA
100pA
< 140mV
100+200
400+250
500+250
20+30
1mA
1nA
< 160mV
70+60
300+60
500+60
20+5
10mA
10nA
< 160mV
70+200
300+200
500+200
20+20
100mA
100nA
< 400mV
100+40
300+50
500+50
20+5
1A
1uA
< 60mV
500+60
800+100
500+200
1000+1
12A
10uA
< 600mV
1000+200
1200+200
1500+200
50+20
Resistance[4]
10Ω
10uΩ
10mA
30+30
80+40
100+40
6+5
100Ω
100uΩ
1mA
30+30
80+40
100+40
6+5
1kΩ
1mΩ
1mA
20+5
70+10
100+10
6+1
10kΩ
10mΩ
100uA
20+5
70+10
100+10
6+1
100kΩ
100mΩ
50uA
20+5
70+10
100+10
6+1
1MΩ
1Ω
5uA
20+10
100+10
120+10
10+2
10MΩ
10Ω
0.5uA
100+10
300+10
400+20
30+4
100MΩ
100Ω
0.5uA||10MΩ
2000+100
6000+100
8000+100
1000+10
1GΩ
1kΩ
0.5uA||10MΩ
20000+100
60000+100
80000+100
10000+10
Diode
1V
10uV
1mA
20+100
80+200
100+200
10+20
10V
100uV
1mA
20+100
80+200
100+200
10+20
On-off test
1kΩ
0.1Ω
1mA
20+100
80+200
100+200
10+20
Ratio
measurement
DCV:DCV
100mV-1000V
Input terminal ind reference terminal indicator
[1] Pre-heat for 60 minutes, and integral time is set as 100PLC.
[2] Except for DCV 1000V shift and DCI 12A shift, other measurement ranges can have 20% of
over measurement range measurement.
[3] Relative to calibration standard.
[4] This indicator is suitable for 4-wire resistance measurement or 2-wire resistance
measurement under relative mode.
[5] This indicator is suitable when the digit is displayed as 6 1/2.