Measurin'g Current: Anexample; Example - Keithley 595 Instruction Manual

GETTING STARTED
2.5.6 Measuring Current: An Example
The initial measurement configuration is POWER off, with
input cables attached to the Model 595. The input circuit
The following is an example of a typical current
measure-
is Temporarily disconnected at the test box, on <he voltage
ment. This example uses a lM0 resistor in a test-box. See
source output side.
Figure 2-4 for measurement connections. The voltage source
is set to 1V to cause l& input current to flow
(I = IVIIMQ).
Button Press
Display Remarks
1. POWER
2. CURRENT
3. RANGE v
r.r.
CO.
0.000
-.OOOT
-0.OOT
0.000
.oooo
Memory test (RAM)
Memory test (ROM)
IIF
~2OnF capacitance range, ZERO CHECK on, squtie wsVe.
IL4 Place unit in CURRENT function.
PA
Seth unit to 2OpA
range.
Corrects for internal offsets.
Go to RANGE of desired resolution (press five times for this
example).
CONNECT RESISTOR)
6. SELECT A .oooo
Z DISPLAY SOURCE 00.00
8. ADJUST A 01.00
9. DISPLAY SOURCE .oooo
10. ZERO CHECK
.9835*
~P-4
Select DC WAVEFORM.
V Displays voltage sourced.
~~ v Adjust voltage source to 1V out.
fi Return unit to meter display.
~~ la
Read value from display.
* This value depends on the resistor under test, stray currents, etc.
Variation: Also try using SUPPRESS on readings and adjust voltage source to 1.5V.
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