![background image](http://html2.mh-extra.com/html/keithley/2308/2308_user-manual_3948247182.webp)
12-8
Return to
Section Topics
2308-900-01 Rev. A / July 2008
Section 12: Performance Verification
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
Compliance current accuracy
Follow the steps below to verify compliance current accuracy is within specified limits. The test
involves setting the compliance current to specific values and determining the actual current by
measuring the voltages across a characterized 1
Ω
resistor with a precision digital multimeter.
1. With the power supply’s output off, connect the digital multimeter and characterized 1
Ω
resistor to OUTPUT #1 SOURCE terminals, as shown in
Figure 12-2
. Be sure to observe
proper polarity ( to INPUT HI; SOURCE - to INPUT LO). Be sure to use 4-wire
connections to the resistor terminals.
Figure 12-2
Connections for output current and 5 A range current verification tests
2. Select the multimeter DC voltage measuring function, and enable auto-ranging.
3. Select
Channel
#1
by pressing the or keys to toggle between Channel
#1
and Channel
#2
. Make sure actual voltage readings are being displayed (use DISPLAY).
4. Turn on the output.
5. Verify compliance current accuracy for the currents listed in
Table 12-4
. For each test point:
• Set the output voltage to 8 V, and set the compliance current to the value being tested.
• Note and record the digital multimeter voltage reading.
• Calculate the current from the voltage reading and actual 1
Ω
resistor value: I = V/R.
• Verify that the current is within the limits given in the table.
NOTE
When verifying the battery channel (#1), make sure you connect the
and source - to the same pair of pins (either both in or both out) on the
connector. Do not mix them because the internal resistance present on the
inner pins will cause incorrect verification data to be returned.
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
MADE IN
U.S.A.
LINE RATING
100-120VAC, 200-240VAC
50, 60 HZ 165VA MAX
LINE FUSE
SLOWBLOW
2.0A, 250V
IEEE-488
(ENTER IEEE ADDRESS
FROM FRONT PANEL MENU)
REMOTE
DISPLAY
OPTION
+
+
+ _
_ _
SOURCE
SENSE
SOURCE
OUTPUT #1
ISOLATION FROM EARTH: 22 VOLTS MAX MAX.
RELAY
CONTROL
24VDC MAX
DVM IN
-30 VDC MAX
ANALOG
OUT
mA
(5/50)
A
(0.5/5)
+
+
+ _
_ _
_
+
SOURCE
SENSE
DVM IN
SOURCE
OUTPUT #2
NEXT
PREV
POWER
DISPLAY
2001
MULTIMETER
DCV
ACV
DCI
ACI
ý2
ý4
FREQ
TEMP
REL
TRIG
INFO LOCAL
EXITENT
ER
RANGE
RANGE
!
F
R
500V
PEAK
FRONT/REAR
2A 250V
AMPS
CAL
STORE RECALL
CHAN SCAN
FILTER MATH
CONFIG MENU
HI
INPUT
LO
SENSE
ý 4 WIRE
INPUTS
350V
PEAK
1100V
PEAK
AUTO
Model 2001 DMM
Model 2308
Input LO
Input HI
Source -
1
W
Resistor
Note: Use 4-wire connections
to resistor terminals.
Sense -
Sense +
OUTPUT #1 connections
shown. Use OUTPUT #2
for Charger Channel.
▲
▲
Summary of Contents for 2308
Page 2: ......
Page 12: ...This page left blank intentionally...
Page 32: ...This page left blank intentionally...
Page 106: ...This page left blank intentionally...
Page 140: ...This page left blank intentionally...
Page 208: ...This page left blank intentionally...
Page 220: ...This page left blank intentionally...