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Users manual
Note: Test condition is under the condition of 4 1/2 digits, AZ off, display off; these rates are
not lower than measurement rate under other conditions.
Function
Digit
DC voltage
6 1/2
DC current
6 1/2
Resistance
6 1/2
5 1/2
5 1/2
4 1/2
4 1/2
AC voltage
6 1/2
AC current
6 1/2
6 1/2
6 1/2
Frequency
and
6 1/2
period
5 1/2
4 1/2
[1] The typical measurement rate during AZ off, AZ integral time should not be more than signal
integral time.
Uncertainty indicator refers to the technical indicator 1 hour after pre-heating and in using Auto
Zero function, and the 24-hour indicator is relative to calibration standard, and test standard
complies with GB/T 13978-2008 Digit Multimeter.
6.1 DC Characteristics
6.1.1 Basic characteristics
DC voltage:
Maximum input: ≥1000V, all the measurement ranges;
Common mode control: ≥140dB, 50 or 60Hz±0.1% (1kΩ imbalance);
Series-mode control: ≥60dB, when PLC is 1 or more and power frequency is ±0.1%;
≥0dB, when PLC is <1;
Input resistance: 100mv, 1V and 10V measurement ranges: 10MΩ or >10GΩ are
available
100V and 1000V measurement ranges: 10MΩ±1%
Measurement method: Multi-slope mode converter;
A/D linearity: 2ppm measurement value+1ppm measurement range;
Input offset current: when it is <30pA and 25℃.
DC current:
Input protection: built-in fuses+ external replaceable fuses
Resistance：
The listed indicator is four-wire or two-wire resistance measurement function adopting
zero setting function. If it does not adopt zero setting function, it is allowed to increase
ET3260 and ET3260A
Setting
100PLC
10PLC
2PLC
1PLC
0.2PLC
0.1
0.02
3Hz
20Hz
200Hz
200Hz
1s
100ms
10ms
6 1/2 Digit Multimeter
Integral time
2s
200ms
40ms
20ms
4ms
2ms
0.4ms
45
Measurement/sec
ond [1]
0.5
5
25
50
250
500
2500
0.14
1
1.6
6
1
9.8
80
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