GW Instek GDM-8261A User manual - Manual (Page 220)

GDM-8261A User Manual
220
Measuring Characteristics
DC Voltage Input
Resistance
Range
0.1V
10MΩ or >10GΩ
Selectable
1V
10MΩ or >10GΩ
Selectable
10V 11.11MΩ ±1%
100V 10.1MΩ±1%
1000V 10.1MΩ±1%
Input Bias 30pA (Typ, 25°C)
Input Protection 1000V on all ranges
Measurement Method: Sigma-delta A/D Converter
Resistance Max. Lead
Resistance
10% of range per lead for 100Ω, 1 kΩ ranges. 1 kΩ
per lead on all other ranges.
Input Protection 1000 V on all ranges
Measurement Method: Selectable 4-wire or 2-wire ohms. Current source referenced to LO
input
DC Current
Shunt Resistor 100Ω for 100uA, 1mA. 5Ω for 10mA and 100
mA. 0.1Ω for 1A. 0.01Ω for 10A.
Input Protection Externally accessible 1.25A, 250 V fuse; Internal
12A, 600 V fuse
Reading Rate
(Readings/sec)
[8]
Continuity/
Diode
Rate Digits Rate
Slow 6 ½ 100
Mid 5 ½ 200
Fast 4 ¼ 300
DCV, DCI,
2W/4W
Resistance
Rate Digits Accurate Quick
Slow 6 ½ 5 30
Mid 5 ½ 60 600
Fast 4 ¼ 240 2400
[ 1 ] For DCV/DCI/ 2/4WR measurement modes, to reach specifications
accuracy, must be set in accuracy speed, slow rate, A-Filter off, A-Gain on,
A-Zero on.
[ 2 ] For Diode/CONT/TCO/RTD measurement modes, to reach
specifications accuracy, must be set in slow rate, A-Gain on, A-Zero on.
[ 3 ] Relative to calibration standards.
[ 4 ] 20% overrange on all ranges, except 1000 Vdc and 10A range.
[ 5 ] Specifications are for 4-wire ohms function, or 2-wire ohms using REL