12-12
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2308-900-01 Rev. A / July 2008
Section 12: Performance Verification
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
50 mA range readback accuracy
To verify that current readback accuracy is within specified limits:
1. With the power supply’s output off, connect the digital multimeter and characterized 30
Ω
resistor to the OUTPUT #1 terminals, as shown in
Figure 12-4
. Be sure to observe proper
polarity and connections (30
Ω
resistor between and DMM INPUT HI; SOURCE
- to DMM INPUT LO).
Figure 12-4
Battery channel connections for 50 mA current verification tests
2. Select the multimeter DC volts measuring function, and enable auto range.
3. Press
the
or keys to select Channel
#1
. Select the 50 mA readback range and actual
current reading data.
4. Turn on the output.
14.7 V
490.00 mA
488.98 to 491.02 mA
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.
Table 12-6
500 mA range current readback accuracy limits
*
Nominal output
Voltage
Model 2308
output current
**
Current readback limits
(2 Years, 18°C-28°C)
*
Check the complete Model 2308 Specifications at
www.keithley.com
for
updated current readback accuracy limits before verification.
**As measured by digital multimeter and 30
Ω
resistance value.
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 -
30
W
Resistor
Note: Use 4-wire connections
to resistor terminals.
Sense -
Sense +
▲
▲
Summary of Contents for 2308
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