User Manual

2400 Series SourceMeter
®
User’s Manual Basic Source-Measure Operation 3-23
Do not attempt to charge or discharge batteries exceeding the
current or voltage requirements listed below:
Model 2400, 2400-C: 21V @ 1.05A or 210V @ 105mA
Model 2400-LV, 2401: 21V @ 1.05A
Model 2410, 2410-C: 21V @ 1.05A or 1100V @ 21mA
Model 2420, 2420-C: 21V @ 3.15A or 63V @ 1.05A
Model 2425, 2425-C: 21V @ 3.15A or 105V @ 1.05A
Model 2430, 2430-C: 105V @ 1.05A or 105V @ 10.5A (pulse
mode)
Model 2440, 2440-C: 10.5V @ 5.25A or 42V @ 1.05A
When charging a battery, the SourceMeter is operating as a source. When dis-
charging a battery, the SourceMeter is operating as a sink. Use the V-Source to
charge and discharge batteries. Perform the following steps for both charging and
discharging:
1. Connect Input/Output HI to the positive (+) terminal of the battery and Input/
Output LO to the negative (-) terminal of the battery.
2. Configure the SourceMeter to source voltage and measure current.
3. Set I-compliance to the current level at which the battery is to be charged or
discharged.
4. Select an appropriate current measurement range or use AUTO range.
Battery charging — To charge the battery, program the SourceMeter to out-
put a voltage that is equivalent to the voltage rating of the battery. For
example, to charge a 10V battery, set the SourceMeter to source 10V. As
the battery fully charges, current will decrease until it reaches zero or near
zero (battery charged).
CAUTION When the SourceMeter goes into compliance, the V-source
becomes an I-source (or the I-source becomes a V-source). For
this reason, make sure the voltage compliance is higher than
the battery voltage. See
Section 6 for more details.
Battery discharging — To discharge the battery, program the SourceMeter
to output 0V. In this configuration, the SourceMeter operates as a sink to
discharge the battery. Current from the battery flows into the HI terminal of
the SourceMeter resulting in negative current measurements. As the bat
-
tery discharges, current will gradually decrease until it reaches zero (bat-
tery discharged).
NOTE When using the V-Source to charge and discharge batteries, use the
HIGH-IMPEDANCE output-off state (Section 13). This output-off state
opens the output relay when the OUTPUT is turned off. This open circuit