Model 2410
www.tek.com/keithley
1100 V SourceMeter
Service Manual
2410-902-01C / April 2017
®
Instrument
*P2410-902-01C*
2410-902-01C
Model 2410 1100V SourceMeter
Service Manual
®
© Keithley Instrum
All rights reserved.
Cleveland, Ohio, U.S.A.
Third Printing, April 2017 Document
Number: 2410-902-01 Rev. C
ents, Inc.
Manual Print History
The print history shown below lists the printing dates of all Revisions and Addenda created
for this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revisions, contain important change information that the user should incorporate immediately into the manual. Addenda are numbered
seq
uentially. When a new Revision is created, all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual. Each new Revision
i
ncludes a revised copy of this print history page.
Revision A (Document Number 2410-902-01)..........................................................February 1997
Addendum A (Document Number 2410-902-02) ............................................................ April 1997
Revision B (Document Number 2410-902-01) ..................................................................July 1998
Revision C(Document Number 2410-902-01) ................................................................April 2017
All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc.
Other brand names are trademarks or registered trademarks of their respective holders.
Safety Precautions
The following safety precautions should be observed before using this product and any associated instrumentation. Although
some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous
conditions may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions
required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the manual for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product may be impaired.
The types of product users are:
Responsible body
ment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.
Operators us
instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel
voltage or replacing consumable materials. Maintenance procedures are described in the manual. The procedures explicitly state
if the operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, and perform safe installations and repairs of products. Only properly
trained service personnel may perform installation and service procedures.
Keithley products are designed for use with electrical signals that are rated Measurement Category I and Measurement Category
II,
as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and
data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with
high transient over-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to
ategory I sources unless otherwise marked or described in the Manual.
C
Exercise extreme caution when a shock hazard is present. Lethal v
The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS,
42.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown
circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators
revented access and/or insulated from every connection point. In some cases, connections must be exposed to potential
are p
human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock.
If the circuit is capable of operating at or above 1000 volts, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. Th
es. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.
Before operating an instrument, make sure the line cord is connected to a properly grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.
When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided, in close proximity to the equipment and within easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under
est. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting ca-
t
is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equip-
e the product for its intended function. They must be trained in electrical safety procedures and proper use of the
perform routine procedures on the product to keep it operating properly, for example, setting the line
oltage may be present on cable connector jacks or test fixtures.
ey are intended to be used with impedance limited sourc-
5/03
bles or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.
Do not touch any object that could provide a current path to the
ways make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measur
The instrument and accessories must be used in accordance with its specifications and operating instructions or the safety of the
equipment may be impaired.
Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.
When fuses are used in a product, replace with same type and rating for continued protection against fire hazard.
Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.
If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the us
of a lid interlock.
If a screw is present, connect it to safety earth ground using the wire recommended in the user documentation.
common side of the circuit under test or power line (earth) ground. Al-
ed.
e
!
The symbol on an instrument indicates that the user should r
The symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of
normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages.
The symbol indicates a connection terminal to the equipment frame.
The WAR
information very carefully before performing the indicated procedure.
The CAUTION heading in a manual explains hazards that could damage the instrument. Such damage may invalidate the warranty.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test cables.
To maintain protection from electric shock and fire, replacement components in mains circuits, including the power transformer,
st leads, and input jacks, must be purchased from Keithley Instruments. Standard fuses, with applicable national safety ap-
te
provals, may be used if the rating and type are the same. Other components that are not safety related may be purchased from
other suppliers as long as they are equivalent to the original component. (Note that selected parts should be purchased only
through Keithley Instruments to maintain accuracy and functionality of the product.) If you are unsure about the applicability
of a replacement component, call a Keithley Instruments office for information.
To clean an instrument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument only. Do not apply
leaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with
c
no case or chassis (e.g., data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for
proper cleaning/servicing.
NING heading in a manual explains dangers that might result in personal injury or death. Always read the associated
efer to the operating instructions located in the manual.
Table of Contents
1 Performance Verification
Introduction..........................................................................................1-2
Verification test requirements..............................................................1-3
Restoring factory defaults....................................................................1-6
Performing the verification test procedures.........................................1-7
Compliance considerations..................................................................1-9
Ouptut voltage accuracy ....................................................................1-11
Voltage measurement accuracy.........................................................1-13
Output current accuracy.....................................................................1-14
Current measurement accuracy..........................................................1-16
Resistance measurement accuracy.....................................................1-17
2 Calibration
Introduction..........................................................................................2-2
Environmental conditions....................................................................2-3
Calibration considerations ...................................................................2-4
Front panel calibration.........................................................................2-9
Remote calibration.............................................................................2-16
Single-range calibration.....................................................................2-24
3 Routine Maintenance
Introduction..........................................................................................3-2
Line fuse replacement..........................................................................3-2
4 Troubleshooting
Introduction..........................................................................................4-2
Repair considerations...........................................................................4-2
Power-on self-test ................................................................................4-2
Front panel tests...................................................................................4-3
Principles of operation.........................................................................4-5
Troubleshooting.................................................................................4-13
Analog circuitry checks.....................................................................4-16
Battery replacement...........................................................................4-17
No comm link error ...........................................................................4-18
5 Disassembly
Introduction .........................................................................................5-2
Handling and cleaning......................................................................... 5-2
Static sensitive devices........................................................................ 5-3
Assembly drawings .............................................................................5-4
Case cover removal .............................................................................5-5
Analog board removal......................................................................... 5-6
Digital board removal..........................................................................5-7
Front panel disassembly......................................................................5-8
Removing power components............................................................. 5-9
Instrument re-assembly .....................................................................5-10
6 Replaceable Parts
Introduction .........................................................................................6-2
Parts lists ............................................................................................. 6-2
Ordering information...........................................................................6-2
Factory service .................................................................................... 6-3
Component layouts.............................................................................. 6-3
A Specifications
Accuracy calculations ........................................................................ A-2
B Command Reference
Introduction ........................................................................................ B-2
Command summary ........................................................................... B-2
Miscellaneous commands .................................................................. B-3
Detecting calibration errors.............................................................. B-11
Detecting calibration step completion.............................................. B-13
C Calibration Programs
Introduction ........................................................................................ C-2
Computer hardware requirements...................................................... C-2
Software requirements........................................................................ C-2
Calibration equipment........................................................................ C-3
General program instructions............................................................. C-3
Requesting calibration constants........................................................ C-7
List of Illustrations
1 Performance Verification
Connections for voltage verification tests .........................................1-12
Connections for current verification tests..........................................1-15
Connections for resistance accuracy verification .............................1-18
2 Calibration
Voltage calibration test connections..................................................2-11
Current calibration test connections ..................................................2-13
3 Routine Maintenance
Rear panel ............................................................................................3-3
4 Troubleshooting
Overall block diagram .........................................................................4-5
Analog circuitry block diagram...........................................................4-7
Power supply block diagram ...............................................................4-8
Output stage simplified schematic.......................................................4-9
Digital circuitry block diagram..........................................................4-11
List of Tables
1 Performance Verification
Recommended verification equipment................................................1-4
Output voltage accuracy limits..........................................................1-11
Voltage measurement accuracy limits...............................................1-13
Output current accuracy limits .......................................................... 1-14
Current measurement accuracy limits
Ohms measurement accuracy limits.................................................. 1-18
2 Calibration
Recommended calibration equipment.................................................2-5
Calibration unlocked states .................................................................2-6
Front panel voltage calibration.......................................................... 2-11
Front panel current calibration .......................................................... 2-14
Remote calibration command summary............................................2-16
Recommended :CALibration:PROTected:SENSe............................2-17
parameter ranges
Recommended :CALibration:PROTected:SOURce .........................2-18
parameter ranges
Voltage calibration initialization commands.....................................2-20
Voltage range calibration commands................................................2-20
Current calibration initialization
Current range calibration commands ................................................2-22
..
............................................. 1-16
comm
ands .....................................2-22
3 Routine Maintenance
Power line fuse ....................................................................................3-2
4 Troubleshooting
Display board checks ........................................................................4-13
Power supply checks .........................................................................4-14
Digital circuitry checks .....................................................................4-15
Analog circuitry checks.....................................................................4-16
6 Replaceable Parts
Analog board parts list ........................................................................ 6-4
Digital board parts list.......................................................................6-11
Display board parts list......................................................................6-14
Mechanical parts list.......................................................................... 6-15
B Command Reference
Remote calibration command summary............................................. B-2
Recommended :CALibration:PROTected:SENSe .............................B-7
parameter ranges
Recommended :CALibration:PROTected:SOURce...........................B-9
parameter ranges
Calibration errors.............................................................................. B-12
1
Performance
Verification
1-2 Performance Verification
Introduction
Use the procedures in this section to verify that Model 2410 accuracy is within the limits
stated in the instrument’s one-year accuracy specifications. You can perform these verification
procedures:
• When you first receive the instrument to make sure it was not damaged during shipment.
• To verify that the unit meets factory specifications.
• To determine if calibration is required.
• Following calibration to make sure it was performed properly.
WARNING The
only. Do not attempt these procedures unless you are qualified to do
Some of these procedures may expose you to hazardous voltages, which
could cause personal injury or death if contacted. Use standard safety
precautions when working with hazardous voltages.
NOTE
If the instrument is still under warranty and its performance is outside specified
limits, contact your Keithley representative or the factory to determine the
correct course of action.
rmation in this section is intended for qualified service personnel
info
so.
Verification test requirements
Be sure that you perform the verification tests:
• Under the proper environmental conditions.
• After the specified warm-up period.
• Using the correct line voltage.
• Using the proper test equipment.
• Using the specified output signal and reading limits.
Environmental conditions
Conduct your performance verification procedures in a test environment with:
Performance Verification 1-3
• An ambient temperature of 18-28
• A relative humidity of less than 70% unless otherwise noted.
Warm-up period
Allow the Model 2410 to
procedures. If the instrument has been subjected to temperature extremes (those outside the
ranges stated above), allow additional time for the instrument’s internal temperature to stabilize.
Typically, allow one extra hour to stabilize a unit that is 10°C outside the specified
temperature range.
Also, allow
Line power
The Model 2410 requires a line voltage of 100 to 240V and a line frequency of 50 Hz to
60 Hz. Verification tests must be performed within this range.
°C.
warm up for at least one hour before conducting the verification
the test equipment to warm up for the minimum time specified by the manufacturer.
1-4 Performance Verification
Recommended test equipment
Table 1-1 summarizes recommended v
erification equipment. You can use alternate
equipment if that equipment has specifications at least as good as those listed in Table 1-1. Be
aware, however, that test equipment uncertainty will add to the uncertainty of each
measurement. Generally, test equipment uncertainty should be at least four times better than
corresponding Model 2410 specifications. Table 1-1 lists the uncertainties of the
recommended test equipment including the maximum allowable uncertainty of alternate test
equipment shown in parentheses.
Table 1-1
Recommended verification equipment
Manufacturer/
Description
Digital multimeter Hewlett Packard
Resistance calibrator Fluke 5450A Resistance** 19Ω:
** 90-day full-scale accuracy specifications of ranges required for various measurement points.
** 90-day specifications of nominal resistance values shown. Maximum uncertainty of alternate test
ipment is shown in parentheses.
equ
el Accuracy
Mod
H
3458A
P
DC voltage*
DC current*
1V:
10V:
100V:
1000V:
1µA:
10μA:
100μA:
1mA:
100mA:
1A:
190Ω:
1.9kΩ:
19kΩ:
190kΩ:
1.9MΩ:
19MΩ:
100MΩ:
±5.6ppm
±4.3ppm
±6.3ppm
±6.1ppm
±55ppm
±25ppm
±23ppm
±20ppm
±35ppm
±110ppm
±23ppm (±340ppm)
±10.5ppm (±370ppm)
±8ppm (±265ppm)
±7.5ppm (±250ppm)
±8.5ppm (±260ppm)
±11.5ppm (±365ppm)
±30ppm (±315ppm)
±120ppm (±1700ppm)
Verification limits
The verification limits stated in this section have been calculated using only the Model 2410
one-year accuracy spe
particular measurement falls outside the allowable range, recalculate new limits based both on
Mod
el 2410 specifications and corresponding test equipment specifications.
Example limits calculation
As an example of how verification limits are calculated, assume you are testing the 20V DC
output range using a 20V output value. Using the Model 2410 one-year accuracy specification
for 20V DC output of ±(0.02% of output + 2.4mV offset), the calculated output limits are:
Outp
ut limits = 20V ± [(20V × 0.02%
Output limits = 20V ± (0.004 + 0.0024)
Output limits = 20V ± 0.0064V
Output limits = 19.9936V to 20.0064V
Resistance limits calculation
When verifying the ohms function, it will probably be necessary to recalculate resistance
limits based on the actual calibrator resistance values. You can calculate resistance reading
limits in the same manner described above. Be sure to use the actual calibrator resistance
values and the Model 2410 normal accuracy specifications for your calculations.
Performance Verification 1-5
cifications, and they do not include test equipment uncertainty. If a
) + 2.4mV]
As an example, assume that you are testing the 20kΩ range and that the actual value of the
nominal 19kΩ calibrator resistor is 19.025kΩ. Using the Model 2410 one-year normal
accuracy specifications of ±(0.07% of reading + 6Ω), the recalculated reading limits are:
Reading limits = 19.025kΩ ± [(19.025kΩ × 0.07%) + 6Ω]
Reading limits = 19.025kΩ ± 19.3Ω
ding limits = 19.0057kΩ to 19.0
Rea
443kΩ
1-6 Performance Verification
Restoring factory defaults
Before performing the verification proced
(bench) defaults as follows:
1. P
ress the MENU key. The instrument will display the following prompt:
MAIN MENU
SAVESETUP COMMUNICATION CAL
2. Select SAVESETUP, and then press ENTER. The unit displays:
SAVESETUP MENU
GLOBAL SOURCE-MEMORY
3. Select GLOBAL, and then press ENTER. The unit then displays:
GLOBAL SETUP MENU
SAVE RESTORE POWERON RESET
4. Select RESET, and then press ENTER. The unit displays:
RESET ORIGINAL DFLTS
BENCH GPIB
5. Select BENCH, and then press ENTER. The unit then displays:
RESETTING INSTRUMENT
ENTER to confirm; EXIT to abort
6. Press ENTER to restore bench defaults, and note the unit displays the following:
RESET COMPLETE
BENCH defaults are now restored
Press ENTER to continue
7. Press ENTER and then EXIT as necessary to return to normal display.
ures, restore the instrument to its factory front panel
Performance Verification 1-7
Performing the verification test procedures
Test summary
• DC voltage output accuracy
• DC voltage measurement accuracy
• DC current output accuracy
• DC current measurement accuracy
• Resistance measurement accuracy
If the Model 2410 is not within specifications and not under warranty, see the calibration
procedures in Section 2 for information on calibrating the unit.
Test considerations
When performing the verification procedures:
• Be sure to restore factory front panel defaults as outlined above.
• Make sure the test equipment is properly warmed up and connected to the Model 2410
INPUT/OUTPUT
TERMINALS key.
• Make sure the Model 2410 is set to the correct source range.
• Be sure the Model 2410 output is turned on before making measurements.
• Be sure the test equipment is set up for the proper function and range.
• Allow the Model 2410 output signal to settle before making a measurement.
• Do not connect test equipment to the Model 2410 through a scanner, multiplexer, or
o
t
r switching equipment.
he
jacks. Also be sure that the front panel jacks are selected with the
WARNING The
g
round) is 250V peak. Exceeding this value may cause a breakdown in
insulation, creating a shock hazard.
CAUTION
The max
SENSE HI and LO is 1100V peak. The maximum voltage between INPUT/
OUTPUT HI and 4-WIRE SENSE HI or between INPUT/OUTPUT LO
and 4-WIRE SENSE LO is 5V. Exceeding these voltage values may result
in instrument damage.
imum common-mode voltage (voltage between LO and chassis
max
imum voltage between INPUT/OUTPUT HI and LO or 4-WIRE
1-8 Performance Verification
Setting the source range and output value
Before testing each verification point, you must properly set the source range and output
value as outlined below.
1. Press either the SOURCE V or SOURCE I key to select the appropriate source function.
2. Press the EDIT key as required to select the source display field. Note that the cursor will
flash
3. With the cursor in the source display field flashing, set the source range to the lowest
oss
p
ible range for the value to be sourced using the up or down RANGE key. For example, you should use the 20V source range to output a 20V source value. With a 20V
so
rce value and the 20V range selected, the source field display will appear as follows:
u
Vsrc:+20.0000 V
4. With the source field cursor flashing, set the source output to the required value using
eithe
r:
• The SOURCE adjustment and left and right arrow keys.
• The numeric keys.
5. Note that the source output value will be updated immediately. You need not press
ENTE
in the source field while its value is being edited.
R when setting the source value.
Setting the measurement range
When simultaneously sourcing and measuring either voltage or current, the measure range is
coupled to the source range, and you cannot independently control the measure range. Thus, it
is not necessary for you to set the range when testing voltage or current measurement accuracy.
Compliance considerations
Compliance limits
When sourcing voltage, you can set the SourceMeter to limit current from 1nA to 1.05A.
Conversely, when sourcing current, you can set the SourceMeter to limit voltage from 200μV
to 1.1kV. The SourceMeter output will not exceed the programmed compliance limit.
Types of compliance
Performance Verification 1-9
There are two types o
value is lower, the output will clamp at either the displayed compliance setting (real) or at the
maximum measurement range reading (range).
The real compliance condition can occur when the compliance setting is less than the highest possible reading of the measurement range. When in compliance, the source output clamps
at th
e displayed compliance value. For example, if the compliance voltage is set to 1V and the
measurement range is 2V, the output voltage will clamp (limit) at 1V.
Range compliance can occur when the compliance setting is higher than the possible reading
of the selected measurement range. When in compliance, the source output clamps at the
maximum measurement range reading (not the compliance value). For example, if the
compliance voltage is set to 1V and the measurement range is 200mV, the output voltage will
clamp (limit) at 210mV.
f compliance that can occur: Real and range. Depending upon which
Determining compliance limit
The relationships to determine which compliance is in effect are summarized as follows.
They assume the measurement function is the same as the compliance function.
• Compliance Setting < Measurement Range = Real Compliance
• Measu
You can determine the compliance that is in effect by comparing the displayed compliance
setting
possible reading on the present measurement range, the compliance setting is the compliance
limit. If the compliance setting is higher than the measurement range, the maximum reading on
that measurement range is the compliance limit.
rement Range < Compliance Setting = Range Compliance
to the present measurement range. If the compliance setting is lower than the maximum
1-10 Performance Verification
Taking the SourceMeter out of compliance
Verification measurements should not be made when the SourceMeter is in compliance. For
purposes of the verification tests, the SourceMeter can be taken out of compliance by going into
the edit mode and increasing the compliance limit.
NOTE Do no
the range. Always use the recommended range and source settings when
performing the verification tests.
t take the unit out of compliance by decreasing the source value or changing
Output voltage accuracy
Follow the steps below to verify that Model 2410 output voltage accuracy is within specified
limits. This test involves setting the output voltage to each full-range value and measuring the
voltages with a precision digital multimeter.
1. With the power off, connect the digital multimeter to the Model 2410 INPUT/
jac
ks as shown in Figure 1-1.
2. Select the multimeter DC volts measuring function.
3. Set the voltage source protection to >1100V. To do so, press CONFIG and then
SOURCE V-SOURCE menu
select PROTECTION, and set the voltage source protection limit to >1100V.
4. Press the Model 2410 SOURCE V key to source voltage, and make sure the source output is turned on
5. Verif
6. Repeat the procedure for negative output voltages with the same magnitude as thos
7. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to
y output voltage accuracy for each of the voltages listed in Table 1-2. For each test
poin
t:
• Select the correct source range.
• Set the Model 2410 output voltage to the indicated value.
• Verify that the multimeter reading is within the limits given in the table.
in
listed
select th
.
Table 1-2.
anel jacks with the front panel TERMINALS key.
e rear p
Performance Verification 1-11
OUTPUT
to access the CONFIGURE V-SOURCE menu. Then
e
Table 1-2
Output voltage accuracy limits
Model 2410
source range
200mV
2V
20V
1000V
Model 2410
output voltage setting
200.000mV
2.00000V
20.0000V
975.00V
Output voltage limits
(1 year, 18°C–28°C)
199.360 to 200.640mV
1.99900 to 2.00100V
19.9936 to 20.0064V
974.705 to 975.295V
1-12 Performance Verification
Figure 1-1
Connections for voltage
verification tests
EDIT
DISPLAY
TOGGLE
POWER
V
LOCAL
67
DIGITS SPEED
MEAS
I
1
REL
FILTER
STORE
2410 1100V SourceMeter
SOURCE
FCTN
I
Ω
V
230
4
EDIT
5
TRIG
SWEEP
LIMIT
+/-
89
EXIT ENTER
RECALL
CONFIG MENU
Model 2410
2410 SourceMeter
SENSE
INPUT/
4-WIRE
!
Ω 4 WIRE
OUTPUT
SENSE
HI
1100V
1100V
5V
PEAK
PEAK
PEAK
®
LO
250V
PEAK
!
RANGE
AUTO
TERMINALS
ON/OFF
FRONT/
RANGE
REAR
OUTPUT
Digital Multimeter
Input HI
Input LO
Voltage measurement accuracy
Follow the steps below to verify that the Model 2410 voltage measurement accuracy is within
specified limits. The test involves setting the source voltage to full-range values, as measured
by a precision digital multimeter, and then verifying that the Model 2410 voltage readings are
within required limits.
Performance Verification 1-13
1. With the power off, connect the digital multimeter to the Model 2410 INPUT/
ks as shown in Figure 1-1.
jac
2. Select the multimeter DC volts function.
3. Set the voltage source protection to >1100V. To do so, press CONFIG then SOURCE V
to access
voltage source protection limit to >1100V.
4. Set the Model 2410 to both source and measure voltage by pressing the SOURCE V and
M
5. Verify output voltage accuracy for each of the voltages listed in Table 1-3. For each test
poin
• Select the correct source range.
• Set the Model 2410 output voltage to the indicated value as measured by the digital
• Verify that the Model 2410 voltage reading is within the limits given in the table.
NOTE It ma
6. Repeat the procedure for negative source voltages with the same magnitudes as those
listed in
7. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to
select the rear p
the CONFIGURE V-SOURCE menu, then select PROTECTION, and set the
S V keys, and make sure the source output is turned on.
EA
t:
m
eter.
ultim
ot be possible to set the voltage source to the specified value.
y n
Use the closest possible setting, and modify reading limits accordingly.
Table 1-3.
anel jacks with the front panel TERMINALS key.
OUTPUT
Table 1-3
Voltage measurement accuracy limits
Model 2410 source
and measure
range*
200mV
2V
20V
1000V
* Measure range coupled to source range when simultaneously sourcing and
*
measuring voltage.
** As measured by precision digital multimeter. Use closest possible value, and
modify reading
limits accordingly if necessary.
Source voltage**
200.000mV
2.00000V
20.0000V
975.00V
Model 2410 voltage
reading limits
(
1 year, 18°C–28°C)
199.676 to 200.324mV
1.99946 to 2.00054V
19.9960 to 20.0040V
974.80 to 975.20V
1-14 Performance Verification
Output current accuracy
Follow the steps below to verify that Model 2410 output current accuracy is within specified
limits. The test involves setting the output current to each full-range value and measuring the
currents with a precision digital multimeter.
1. With the power off, connect the digital multimeter to the Model 2410 INPUT/OUTPUT
jac
ks as shown in Figure 1-2.
2. Select the multimeter DC current measuring function.
3. Press the Model 2410 SOURCE I key to source current, and make sure the source output
is tu
rned
on.
4. Verify output current accuracy for each of the currents listed in Table 1-4. For each
t:
poin
• Select the correct source range.
• Set the Model 2410 output current to the correct value.
• Verify that the multimeter reading is within the limits given in the table.
5. Repeat the procedure for negative output currents with the same magnitudes as those
listed in
6. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to
select th
Table 1-4.
anel jacks with the front panel TERMINALS key.
e rear p
test
Table 1-4
Output current accuracy limits
Model 2410
source range
1µA
10µA
100µA
1mA
20mA
100mA
1A
Model 2410 output
curre
1.00000µA
10.0000µA
100.000µA
1.00000mA
20.0000mA
100.000mA
1.00000A
nt se
tting
Output current limits
(1 year, 18°C–28°C)
0.99905 to 1.00095µA
9.9947 to 10.0053µA
99.949 to 100.051µA
0.99946 to 1.00054mA
19.9870 to 20.0130mA
99.914 to 100.086mA
0.99640 to 1.00360A
Figure 1-2
Connections for
current verification
tests
MEAS
EDIT
V
I
LOCAL
67
DIGITS SPEED
Ω
1
230
REL
FILTER
89
RECALL
STORE
DISPLAY
TOGGLE
POWER
Model 2410
Digital Multimeter
Performance Verification 1-15
SENSE
INPUT/
!
Ω 4 WIRE
OUTPUT
HI
1100V
1100V
5V
PEAK
PEAK
PEAK
®
2410 1100V SourceMeter
2410 SourceMeter
SOURCE
FCTN
I
V
4
5
EDIT
TRIG
SWEEP
LIMIT
+/-
EXIT ENTER
CONFIG MENU
LO
250V
PEAK
!
RANGE
AUTO
TERMINALS
ON/OFF
FRONT/
RANGE
REAR
OUTPUT
Input LO
Amps
1-16 Performance Verification
Current measurement accuracy
Follow the steps below to verify that Model 2410 current measurement accuracy
specified limits. The procedure involves applying accurate currents from the Model 2410 current
source and then verifying that Model 2410 current measurements are within required limits.
1. W
ith the power off, connect the digital multimeter to the Model 2410 INPUT/OUTPUT
jacks a
s shown in Figure 1-2.
2. Select the multimeter DC current function.
3. Set the Model 2410 to both source and measure current by pressing the SOURCE I and
I keys, and make sure the source output is turned on.
MEAS
4. Verify measure current accuracy for each of the currents listed in Table 1-5. For each
measurem
• Select the correct source range.
• Set the Model 2410 source output to the correct value as measured by the digi
• Verify that the Model 2410 current reading is within the limits given in the table.
NOTE It ma
5. Repeat the procedure for negative calibrator currents with the same magnitudes as those
listed in Ta
6. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to
select the rear pan
ent:
multimet
possible setting, and modify reading limits accordingly.
er.
t be possible to set the current source to the specified value. Use the closest
y no
ble 1-5.
el jacks with the front panel TERMINALS key.
is within
tal
Table 1-5
Current measurement accuracy limits
Model 2410 source
and measure
range*
1µA
10µA
100µA
1mA
20mA
100mA
1A
** Measure range coupled to source range when simultaneously sourcing
and measuring current.
** As measured by precision digital multimeter. Use closest possible value,
nd mod
ify reading limits accordingly if necessary.
a
Source
current**
1.00000µA
10.0000µA
100.000µA
1.00000mA
20.0000mA
100.000mA
1.00000A
Model 2410 current
reading limits
(1 ye
ar, 18°C–28°C)
0.99941 to 1.00059µA
9.9966 to 10.0034µA
99.969 to 100.031µA
0.99967 to 1.00033mA
19.9918 to 20.0082mA
99.939 to 100.061mA
0.99723 to 1.00277A
Resistance measurement accuracy
Follow the steps below to verify that Model 2410 resistance measurement accuracy is within
specified
calibrator and then verifying that Model 2410 resistance measurements are within required limits.
NOTE It may no
limits. This procedure involves applying accurate resistances from a resistance
1. With the power off, connect the resistance calibrator to the Model 2410 INPUT/
OUTPUT and 4-WIRE SENSE jacks as shown in Figure 1-3. Be sure to use the fourwire connections as shown.
2. Select the resistance calibrator external sense mode.
3. Configure the Model 2410 ohms function for the 4-wire sense mode as follows:
• Press CONFIG then MEAS Ω. The instrument will display the following: CONFIG
OHMS
SOURCE SENSE-MODE GUARD
• Select SENSE-MODE, and then press ENTER. The following will be displayed:
SENSE-MODE
2-WIRE 4-WIRE
• Select 4-WIRE, and then press ENTER.
• Press EXIT to return to normal display.
4. Press MEAS Ω to select the ohms measurement function, and make sure the source
out-put is turned on.
5. Verify ohms measurement accuracy for each of the resistance values listed in Table 1-6.
For each measurement:
• Set the resistance calibrator output to the nominal resistance or closest available
value.
t be possible to set the resistance calibrator to the specified value. Use
the closest possible setting, and modify reading limits accordingly.
Performance Verification 1-17
• Select the appropriate ohms measurement range with the RANGE keys.
• Verify that the Model 2410 resistance reading is within the limits given in the table.
6. Repeat the entire procedure using the rear panel INPUT/OUTPUT and 4-WIRE SENSE
jack
re to select the rear panel jacks with the front panel TERMINALS key.
s. Be su
1-18 Performance Verification
F
Table 1-6
Ohms measurement accuracy limits
Model 2410
range
Calibrator
resistance*
Model 2410 resistance
reading limit
s**
(1 year, 18°C–28°C)
20Ω
200Ω
2kΩ
20kΩ
200kΩ
2MΩ
20MΩ
200MΩ
19Ω
190Ω
1.9kΩ
19kΩ
190kΩ
1.9MΩ
19MΩ
100MΩ
18.9731 to 19.0269Ω
189.709 t
o 190.291Ω
1.89788 to 1.90212kΩ
18.9807 to 19.0212kΩ
189.807 to 190.193kΩ
1.89712 to 1.90288MΩ
18.9748 to 19.0252MΩ
99.316 to 100.684MΩ
** Nominal resistance value.
** Reading limits based on Model 2410 normal accuracy specifica-
tions and
nominal resistance values. If actual resistance values
ffer
from nominal values shown, recalculate reading limits
di
using actual calibrator resistance values and Model 2410 normal
accuracy specifications. See verification limits earlier in this
section for details.
igure 1-3
Connections for
resistance
accuracy
verification
DISPLAY
TOGGLE
POWER
MEAS
MEAS
EDIT
V
I
Ω
EDIT
V
I
1
DISPLAY
1
REL
LOCAL
FILTER
TOGGLE
LOCAL
REL
FILTER
67
POWER
67
DIGITS SPEED
STORE
DIGITS SPEED
STORE
2410 1100V SourceMeter
SOURCE
SOURCE
FCTN
I
V
FCTN
I
Ω
V
230
4
5
230
4
EDIT
5
RELFILTER
LIMIT
TRIG
SWEEP
LIMIT
+/-
89
+/-
89
Model 2410
RECALL
DIGITS RATE
RECALL
CONFIG MENU
Model 2400
EXIT ENTER
EXIT ENTER
EDIT
2400 SourceMeter
2410 SourceMeter
SENSE
INPUT/
Ω 4 WIRE
OUTPUT
HI
SENSE
INPUT/
4-WIRE
!
Ω 4 WIRE
OUTPUT
SENSE
HI
250V
250V
5V
PEAK
PEAK
PEAK
1100V
1100V
5V
PEAK
PEAK
PEAK
®
LO
250V
PEAK
LO
250V
PEAK
!
RANGE
RANGE
AUTO
RANGE
TERMINALS
TERMINALS
ON/OFF
FRONT/
RANGE
ON/OFF
FRONT/
REAR
REAR
OUTPUT
OUTPUT
Output HI
Resistance Calibrator
Resistance Calibrator
Output HI
Output LO
Output LO
Sense HI
Sense HI
Sense LO
Sense LO
2
Calibration
2-2 Calibration
Introduction
Use the procedures in this section to calibrate the Model 2410. These procedures require
accurate test equipmen
performed either from the front panel, or by sending SCPI calibration commands over the
IEEE-488 bus or RS-232 port with the aid of a computer.
WARNING The information in this section is intended for qualified service personnel
t to measure precise DC voltages and currents. Calibration can be
only. Do not attempt these procedures unless you are qualified to do so.
Some of these procedures may expose you to hazardous voltages.