Model 2460 Interactive SourceMeter® Instrument User's Manual
Section 6: Rechargeable battery measurements
2460-900-01 Rev. A / September 2014
6-9
Set up the battery application using TSP commands
The following TSP code is designed to be run from Keithley Instruments Test Script Builder (TSB).
TSB is a software tool that is available from the Keithley Instruments website. You can install and
use TSB to write code and develop scripts for TSP-enabled instruments. Information about how to
use TSB is in the online help for TSB and in the “Introduction to TSP operation” section of the
Model
2460 Reference Manual
.
To use other programming environments, you may need to make changes to the example TSP code.
By default, the Model 2460 is configured to use the SCPI command set. You must select the TSP
command set before sending TSP commands to the instrument.
To enable TSP commands:
1. Press the
MENU
key.
2. Under System, select
Settings
.
3. For Command Set, select
TSP
.
4. At the prompt to reboot, select
Yes
.
The TSP code in this example sets the Model 2460 to the source voltage function and measure
current function. To discharge a fully charged 1.2 V battery, the voltage source is set to 0.9 V and the
source limit is set to 2.5 A. The voltage, current, and relative timestamp values are returned.
Measurements are made until the voltage reaches the set level. During the test, these measurements
are shown on the USER swipe screen at the bottom of the screen (see the figure following the
example code).
You may need to change the current and voltage levels so that they are appropriate for the battery
you are testing.
The TSP code in this example also saves all of the current, voltage, and time readings to a USB flash
drive connected to the Model 2460 front panel.
Before connecting the battery to the Model 2460 output terminals, complete the following tasks to
prepare the Model 2460 for the test.
Reset the instrument:
1. Press the
MENU
key.
2. Under
System
, select
Manage
.
3. Select
System Reset > OK
.
Set the output-off state to High Impedance:
1. Press the
MENU
key.
2. Under Source, select
Settings
.
3. Select the button next to Output Off State and select
High Impedance
. This output-off state
opens the output relay when the output is turned off, preventing the battery from draining.