Everfine LT- 101A - Chapter 3 Specifications; Main Specifications; General Specifications

LT-101A User’s Manual
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Chapter 3 Specifications
3.1 Main specifications
3.1.1 Input and Output characteristics measurement
Item
Voltage(V)
Current(A)
Range
300V
1A/5A
Measuring range
3V～300V(CF=3)
0.010A～5.000A(CF=3)
Maximum allowable input
600V
10A
Frequency range
DC, basic frequency:20Hz～65Hz
Band width
Narrowband:20Hz～5kHz； Broadband:20Hz～1MHz
3.1.2 Basic error (accuracy of the instrument)
Condition
Item
Basic error
Ambient temperature: 23℃±5℃
Relative Humidity: 30%RH～75%RH
Voltage: 220V±11V
Input waveform: stable sine wave
Input range: 10%～100% Full Scale
common-mode voltage: 0V
Power Factor: COSφ=1
Voltage, current and active
power
(0.1%F.S.+0.1%R.D.)
Power factor
(0.002+0.001R.D.)
Frequency
(0.1%R.D.)
3.2 General specifications
Pre-heat time: About 30minutes.
Range of ambient temperature and humidity: 5
℃～
40
℃
, 20%
～
80%R.H..
Insulation resistance: more than 50M
（
DC 500V
）
among signal input terminal,
shell and power supply input terminal.
Withstanding voltage: DC2200V for 1 min between the power supply input
terminal and the shell of the instrument.
AC2000V for 1 min among the signal input terminal, the shell and the power
supply input terminal.
Power supply: AC220V±22V,50Hz/60Hz.