Rigol DP700 Series Use and care manual

RIGOL
Calibration Guide
DP700 Series Programmable
Linear DC Power Supply
July 2016
RIGOL TECHNOLOGIES, INC.

RIGOL
DP700 Calibration Guide I
Guaranty and Declaration
Copyright
©2016 RIGOL TECHNOLOGIES, INC. All Rights Reserved.
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RIGOL is a registered trademark of RIGOL TECHNOLOGIES, INC.
Publication Number
CGH05100-1110
Notices
RIGOL products are covered by P.R.C. and foreign patents, issued and pending.
RIGOL reserves the right to modify or change parts of or all the specifications
and pricing policies at the company’s sole decision.
Information in this publication replaces all previously released materials.
Information in this publication is subject to change without notice.
RIGOL shall not be liable for either incidental or consequential losses in
connection with the furnishing, use, or performance of this manual, as well as
any information contained.
Any part of this document is forbidden to be copied, photocopied, or rearranged
without prior written approval of RIGOL.
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RIGOL guarantees that this product conforms to the national and industrial
standards in China as well as the ISO9001:2008 standard and the ISO14001:2004
standard. Other international standard conformance certifications are in progress.
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please contact RIGOL.
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RIGOL
II DP700 Calibration Guide
Document Overview
This manual gives a detailed description of the calibration notices and calibration
process of DP700 series programmable linear DC power supply (hereinafter referred
to as "DP700 series").
Main Topics in this Manual:
Chapter 1Calibration Notices
This chapter gives a detailed description of the recommended calibration interval,
calibration safety, how to stop the calibration, how to acquire the calibration service,
the recommended calibration devices, and the precautions during calibration.
Chapter 2 Calibration Process
This chapter gives a detailed description of the calibration page of DP series and the
calibration process for each calibration item.
Format Conventions in this Manual:
The function key on the front panel is denoted by the format of "Key Name (Bold)
+ Text Box" in the manual. For example, On/Off denotes the "On/Off" key.
Use the screen shot to indicate the key. For example, denotes the Power
key.
Content Conventions in this Manual:
DP700 series programmable linear DC power supply includes the following two
models. Unless otherwise specified, this manual takes DP711 as an example to
illustrate the calibration notices and calibration process of DP700 series.
Model Number of Channels Output Voltage/Current
DP711 1 30 V/5 A
DP712 1 50 V/3 A

Contents RIGOL
DP700 Calibration Guide III
Contents
Guaranty and Declaration.........................................................................I
Document Overview................................................................................II
Chapter 1 Calibration Notices.............................................................1-1
Calibration Interval................................................................................ 1-1
Calibration Safety.................................................................................. 1-1
To Stop the Calibration........................................................................... 1-2
To Acquire the Calibration Service........................................................... 1-2
Recommended Calibration Devices.......................................................... 1-2
Calibration Precautions........................................................................... 1-3
Chapter 2 Calibration Process ............................................................2-1
V DAC.................................................................................................. 2-5
V ADC.................................................................................................. 2-7
I DAC................................................................................................... 2-8
I ADC..................................................................................................2-10
OVP....................................................................................................2-11

Chapter 1 Calibration Notices RIGOL
DP700 Calibration Guide 1-1
Chapter 1 Calibration Notices
Calibration Interval
A regular calibration can ensure the performance specifications of DP700 series. The
recommended calibration interval is one year. Please perform a regular calibration if a
higher accuracy is required for DP700 series.
You are recommended to perform a complete calibration within the recommended
calibration interval to guarantee its specifications before the next calibration.
Calibration Safety
You need to input the correct password before manual calibration each time. The
password authentication is to prevent accidental or unauthorized calibration of the
instrument.
Before leaving factory, the instrument has been configured with a default calibration
password 123456. The password is stored in the internal non-volatile memory and
will not be changed at power-off or remote interface reset.
You can also modify the calibration password. The procedures for modifying the
password are as follows:
(1) In the calibration page, press the Down arrow key or use the knob to switch the
parameter focus to "Passwd".
(2) Press OK and then a dialog box is displayed, requesting you to enter the new
password. Enter the new password and then press OK.
(3) Then, a dialog box is displayed, prompting you to enter the new password again
for confirmation. Enter the confirmed password and then press OK.
(4) Use the Up arrow key or use the knob to switch the parameter focus to "Save",
and then press OK to save the modified calibration password and exit the
calibration page.
Note: Please ensure that the confirmed password is the same as the new password
that you have entered.

RIGOL Chapter 1 Calibration Notices
1-2 DP700 Calibration Guide
To Stop the Calibration
During calibration, you can stop the calibration in the following two ways:
Exit the calibration page by pressing keys or using the knob.
In the calibration page, use the Up arrow key or the knob to switch to the
"TestCal" tab, then use the Left/Right arrow key or the knob to switch between
tabs and exit the calibration page (For the save operation and precautions
during calibration, refer to Chapter 2 in this manual).
Turn off the instrument.
Press the Power key to turn off the instrument.
When you stop calibration, the saved calibration data will not be lost. You do not
need to calibrate the items already calibrated again in the next calibration.
CAUTION
If you stop calibration when the instrument is writing the new calibration
factors into the internal non-volatile memory, you may lose all the
calibration factors and you need to perform the calibration for all the
required items again.
To Acquire the Calibration Service
RIGOL does not recommend users to perform manual calibration by themselves. If
calibration is required, please contact RIGOL customer service department or the
local distributor.
Recommended Calibration Devices
You are recommended to use the devices listed in Table 1-1 or other devices whose
performance specifications meet the "Performance Requirement" listed in Table 1-1.
Table 1-1 Recommended Calibration Devices
Device Performance Requirement Recommended Model
Digital Multimeter 6
1
/2
RIGOL
DM3068
Test Probe
Connect the output terminals of
DP700 series and the input
terminals of the multimeter --

Chapter 1 Calibration Notices RIGOL
DP700 Calibration Guide 1-3
Calibration Precautions
To achieve an optimal performance, you should follow the advices below to perform
all the calibration procedures.
Ensure that the ambient temperature stays between 18°C and 28°C. Ideally, the
calibration should be performed at 23°C±1°C.
Ensure that the ambient relative humidity is less than 80%.
Ensure that the instrument has been warmed up for at least 30 minutes before
the calibration.
Keep the cables of the test probe as short as possible.

Chapter 2 Calibration Process RIGOL
DP700 Calibration Guide 2-1
Chapter 2 Calibration Process
The predures for calibration process for DP700 series are as follows:
Step 1 Enter the calibration page
Step 2 Select the calibration item
Step 3Select the calibration point
Step 4Enter the measurement value
Step 5 Complete the calibration
Step 6 Save the calibration data
The detailed operation method for each step is as follows:
Step 1 Enter the calibration page
(1) Warm up DP700 series for at least 30 minutes.
(2) Press System to enter the system utility function interface. Press the
Left/Right arrow key or use the knob to select the "TestCal" tab, as shown
in Figure 2-1.
Figure 2-1 "TestCal" Tab
(3) Press OK. Then, a message is displayed, prompting you to enter the
password. Enter the correct calibration password. For the operation
methods, refer to the descriptions of the help information below the
instrument interface, as shown in Figure 2-2.

RIGOL Chapter 2 Calibration Process
2-2 DP700 Calibration Guide
Figure 2-2 Calibration Password Input Box
(4) Press OK to confirm your password, and then you enter the calibration
page, as shown in Figure 2-3.
Figure 2-3 Calibration Page
Step 2 Select the calibration item
In the calibration page, press Up/Down arrow key or use the knob to switch the
calibration items. The calibration items for DP700 series are available in Table
2-1. You can select one or multiple items for calibration. RIGOL recommends
that you perform the calibration for all the available items.
Table 2-1 Calibration Items
No.
Calibration Item
1
V DAC (calibrate the accuracy of the output voltage)
2 I DAC (calibrate the accuracy of the output current)
3
V ADC (calibrate the accuracy of the readback voltage)
4 I ADC (calibrate the accuracy of the readback current)
5
OVP (calibrate the accuracy of the overvoltage protection setting value)

Chapter 2 Calibration Process RIGOL
DP700 Calibration Guide 2-3
Note:
During calibrating the items, ensure that no load is connected to the output
terminals.
OVP calibration does not need any calibration devices. For its detailed
calibration operation, see the following contents.
After you complete the calibration, restart the instrument.
Step 3 Select the calibration point
After you select the calibration item, press the Right arrow key to switch to the
calibration point. Then, ID of the first calibration point is highlighted. At this time,
press the Down arrow key or use the knob to switch the calibration point.
Note: To guarantee the calibration effects, calibrate all the calibration points
according to its ID sequence (in ascending order).
Step 4 Enter the measurement value
After you select the calibration point, press OK. Then "Meas" (measurement
value) is highlighted and editable (the original values displayed under "Meas"
are reference voltage/current values). At this time, use the num key or the knob
(for a negative value input, use the knob) to enter the measurement value of the
digital multimeter. For setting methods, refer to the descriptions of the help
information below the instrument interface or descriptions of "Parameter Setting
Method" in
DP700 User's Guide .
Step 5 Complete the calibration
After you select the calibration point and input the measurement value, press
OK. The value will be written into the system and the calibration for this
calibration point is completed. Then, the cursor will be automatically moved to
the next calibration point.
If you are calibrating the last calibration point, after you complete the calibration,
the cursor will be automatically switched to the ID of the calibration point. Then,
you need to press the Up arrow key or use the knob to switch the calibration
point; or you can press the Left arrow key to switch to the calibration item.
Note: After you input the current measurement value of the digital multimeter,
please wait for at least 3 seconds and then press OK. Otherwise, the calibration
may fail.

RIGOL Chapter 2 Calibration Process
2-4 DP700 Calibration Guide
Step 6 Save the calibration data
In the calibration page, press the Up/Down arrow key or use the knob to switch
the parameter focus to "Save", then, press OK to save the current calibration
data and exit the calibration page.
If you calibrated the items but did not save your calibration data, when you exit
the calibration page, a dialog box "Save the calibration data?" will be displayed,
as shown in Figure 2-4. If you select "YES", the currently calibrated data will be
saved and then you exit the calibration page; if "NO", the currently calibrated
data will not be saved and then you exit the calibration page.
Figure 2-4 "Save the calibration data?" Dialog Box
Note:
If you want to calibrate multiple items, RIGOL suggests you complete the
calibration for all the items and then save the calibration data, so that you
do not have to enter the calibration password repeatedly to enter the
calibration page for calibrating each calibration item.
To guarantee the calibration results, perform the save operation for the
calibration item after all the calibration points of a certain calibration item
are all calibrated.
The following section describes the calibration method for each calibration item.
CAUTION
Please strictly follow the calibration order listed below to perform the
calibration for each item.

Chapter 2 Calibration Process RIGOL
DP700 Calibration Guide 2-5
V DAC
This section takes DP711 as an example to introduce the calibration method for the
voltage DAC of DP700 series. Unless otherwise specified, this calibration method
applies to all the models of the DP700 series.
(1) Ensure that DP711 has been warmed up for at least 30 minutes. Use the test
probe to connect the output terminals of DP711 to the voltage input terminals of
the digital multimeter, as shown in Figure 2-5.
DP711 Digital Multimeter
◎◎
◎◎
◎
V
mV
mA A
+
POWER
ON OFF
30V/5A
Number
1 2 3
4 5 6
7 8 9
Memory
System
OK
0
Figure 2-5 Connect DP711 and Digital Multimeter (Voltage)
Note: Connect the positive terminal of the digital multimeter with the (+) terminal of
the channel output of DP711 and connect the negative terminal of the digital
multimeter with the (-) terminal of the channel output of DP711.
(2) Press On/Off on the front panel of DP711 to turn on the channel output.
(3) Turn on the digital multimeter. Select the DC voltage (DCV) measurement
function and set the range to "Auto".
(4) Enter the DP711 calibration page, and select "V DAC", then press the Right
arrow key. The cursor switches to ID of the first calibration point.
(5) Press OK. The Meas value (measurement value) of the selected calibration point
is highlighted and editable. Then, use the num key or the knob to enter the
measurement value of the digital multimeter.
(6) Press OK, and the measurement value will be written into the system. Thus, you
have completed the calibration for the selected calibration point.

RIGOL Chapter 2 Calibration Process
2-6 DP700 Calibration Guide
(7) Select the rest of the calibration points according to the ID sequence, then
repeat Step (5) and (6) until you complete the calibration operation for all the
calibration points.
(8) Press the Down arrow key or use the knob to switch the parameter focus to
"Save", then, press OK to save the current calibration data. Till now, you have
completed the voltage DAC calibration.

Chapter 2 Calibration Process RIGOL
DP700 Calibration Guide 2-7
V ADC
This section takes DP711 as an example to introduce the calibration method for the
voltage ADC of DP700 series. Unless otherwise specified, this calibration method
applies to all the models of the DP700 series.
(1) Ensure that DP711 has been warmed up for at least 30 minutes. Use the test
probe to connect the output terminals of DP711 to the voltage input terminals of
the digital multimeter, as shown in Figure 2-5.
(2) Press On/Off on the front panel of DP711 to turn on the channel output.
(3) Turn on the digital multimeter. Select the DC voltage (DCV) measurement
function and set the range to "Auto".
(4) Enter the DP711 calibration page, and select "V ADC", then press the Right
arrow key. The cursor switches to ID of the first calibration point.
(5) Press OK. The Meas value (measurement value) of the selected calibration point
is highlighted and editable. Then, use the num key or the knob to enter the
measurement value of the digital multimeter.
(6) Press OK, and the measurement value will be written into the system. Thus, you
have completed the calibration for the selected calibration point.
(7) Select the rest of the calibration points according to the ID sequence, then
repeat Step (5) and (6) until you complete the calibration operation for all the
calibration points.
(8) Press the Down arrow key or use the knob to switch the parameter focus to
"Save", then, press OK to save the current calibration data. Till now, you have
completed the voltage ADC calibration.

RIGOL Chapter 2 Calibration Process
2-8 DP700 Calibration Guide
I DAC
This section takes DP711 as an example to introduce the calibration method for the
current DAC of DP700 series. Unless otherwise specified, this calibration method
applies to all the models of the DP700 series.
(1) Ensure that DP711 has been warmed up for at least 30 minutes. Use the test
probe to connect the output terminals of DP711 to the current input terminals of
the digital multimeter, as shown in Figure 2-6.
DP711 Digital Multimeter
◎◎
◎◎
◎
V
mV
mA A
+
POWER
ON OFF
30V/5A
Number
1 2 3
4 5 6
7 8 9
Memory
System
OK
0
Figure 2-6 Connect DP711 and Digital Multimeter (Current)
Note: Connect the positive terminal of the digital multimeter with the (+)
terminal of the channel output of DP711 and connect the negative terminal of
the digital multimeter with the (-) terminal of the channel output of DP711.
(2) Press On/Off on the front panel of DP711 to turn on the channel output.
(3) Turn on the digital multimeter. Select the DC current (DCI) measurement
function and set the range to "Auto" and the scale to "A".
(4) Enter the DP711 calibration page, and select "I DAC", then press the Right arrow
key. The cursor switches to ID of the first calibration point.
(5) Press OK. The Meas value (measurement value) of the selected calibration point
is highlighted and editable. Then, use the num key or the knob to enter the
measurement value of the digital multimeter.
(6) Press OK, and the measurement value will be written into the system. Thus, you
have completed the calibration for the selected calibration point.

Chapter 2 Calibration Process RIGOL
DP700 Calibration Guide 2-9
(7) Select the rest of the calibration points according to the ID sequence, then
repeat Step (5) and (6) until you complete the calibration operation for all the
calibration points.
(8) Press the Down arrow key or use the knob to switch the parameter focus to
"Save", then, press OK to save the current calibration data. Till now, you have
completed the current DAC calibration.

RIGOL Chapter 2 Calibration Process
2-10 DP700 Calibration Guide
I ADC
This section takes DP711 as an example to introduce the calibration method for the
current ADC of DP700 series. Unless otherwise specified, this calibration method
applies to all the models of the DP700 series.
(1) Ensure that DP711 has been warmed up for at least 30 minutes. Use the test
probe to connect the output terminals of DP711 to the current input terminals of
the digital multimeter, as shown in Figure 2-6.
(2) Press On/Off on the front panel of DP711 to turn on the channel output.
(3) Turn on the digital multimeter. Select the DC current (DCI) measurement
function and set the range to "Auto" and the scale to "A".
(4) Enter the DP711 calibration page, and select "I ADC", then press the Right arrow
key. The cursor switches to ID of the first calibration point.
(5) Press OK. The Meas value (measurement value) of the selected calibration point
is highlighted and editable. Then, use the num key or the knob to enter the
measurement value of the digital multimeter.
(6) Press OK, and the measurement value will be written into the system. Thus, you
have completed the calibration for the selected calibration point.
(7) Select the rest of the calibration points according to the ID sequence, then
repeat Step (5) and (6) until you complete the calibration operation for all the
calibration points.
(8) Press the Down arrow key or use the knob to switch the parameter focus to
"Save", then, press OK to save the current calibration data. Till now, you have
completed the current ADC calibration.