Rigol DHO900 User manual

Guaranty and Declaration
Copyright
© 2023 RIGOL TECHNOLOGIES CO., LTD. All Rights Reserved.
Trademark Information
RIGOL®is the trademark of RIGOL TECHNOLOGIES CO., LTD.
Software Version
Software upgrade might change or add product features. Please acquire the latest software version
from RIGOL website or contact RIGOL to upgrade the software.
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.
Product Certification
RIGOL guarantees that this product conforms to the national and industrial standards in China as
well as the ISO9001:2015 standard and the ISO14001:2015 standard. Other international standard
conformance certifications are in progress.
Contact Us
If you have any problem or requirement when using our products or this manual, please contact
RIGOL.
E-mail: ser[email protected]
Website:
http://www.rigol.com

1Safety Requirement
1.1 General Safety Summary
Please review the following safety precautions carefully before putting the instrument
into operation so as to avoid any personal injury or damage to the instrument and
any product connected to it. To prevent potential hazards, please follow the
instructions specified in this manual to use the instrument properly.
1 Only the exclusive power cord
designed for the instrument and
authorized for use within the
destination country could be
used.
9 Do not operate the instrument
with suspected failures.
2 Ensure that the instrument is
safely grounded.
10 Provide adequate ventilation.
3 Observe all terminal ratings. 11 Do not operate in wet conditions.
4 Use proper overvoltage
protection.
12 Do not operate in an explosive
atmosphere.
5 Do not operate without covers. 13 Keep instrument surfaces clean
and dry.
6 Do not insert objects into the air
outlet.
14 Prevent electrostatic impact.
7 Use the proper fuse. 15 Handle with caution.
8 Avoid circuit or wire exposure.
WARNING
Equipment meeting Class A requirements may not offer adequate protection to broadcast
services within residential environment.
1.2 Safety Notices and Symbols
Safety Notices in this Manual:
WARNING
Indicates a potentially hazardous situation or practice which, if not avoided, will result in
serious injury or death.
CAUTION
Indicates a potentially hazardous situation or practice which, if not avoided, could result
in damage to the product or loss of important data.
Safety Requirement
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 1

Safety Notices on the Product:
• DANGER
It calls attention to an operation, if not correctly performed, could result in injury
or hazard immediately.
• WARNING
It calls attention to an operation, if not correctly performed, could result in
potential injury or hazard.
• CAUTION
It calls attention to an operation, if not correctly performed, could result in
damage to the product or other devices connected to the product.
Safety Symbols on the Product:
Hazardous
Voltage
Safety Warning Protective Earth
Terminal
Chassis Ground Test Ground
1.3 Measurement Category
Measurement Category
This instrument can make measurements in Measurement Category I.
WARNING
This instrument can only be used for measurements within its specified measurement
categories.
Measurement Category Definitions
• Measurement category I is for measurements performed on circuits not directly
connected to MAINS. Examples are measurements on circuits not derived from
MAINS, and specially protected (internal) MAINS derived circuits. In the latter
case, transient stresses are variable. Thus, you must know the transient withstand
capability of the equipment.
• Measurement category II is for measurements performed on circuits directly
connected to low voltage installation. Examples are measurements on household
appliances, portable tools and similar equipment.
• Measurement category III is for measurements performed in the building
installation. Examples are measurements on distribution boards, circuit-breakers,
wiring (including cables, bus-bars, junction boxes, switches and socket-outlets) in
the fixed installation, and equipment for industrial use and some other
Safety Requirement
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equipment. For example, stationary motors with permanent connection to a
fixed installation.
• Measurement category IV is for measurements performed at the source of a
low-voltage installation. Examples are electricity meters and measurements on
primary overcurrent protection devices and ripple control units.
1.4 Ventilation Requirement
This instrument uses a fan to force cooling. Please make sure that the air inlet and
outlet areas are free from obstructions and have free air. When using the instrument
in a bench-top or rack setting, provide at least 10 cm clearance beside, above and
behind the instrument for adequate ventilation.
CAUTION
Inadequate ventilation may cause an increase of temperature in the instrument, which
would cause damage to the instrument. So please keep the instrument well ventilated and
inspect the air outlet and the fan regularly.
1.5 Working Environment
Temperature
Operating: 0℃ to +50℃
Non-operating: -30℃ to +60℃
Humidity
• Operating:
Below +30℃: ≤90% RH (without condensation)
+30℃ to +40℃: ≤75% RH (without condensation)
+40℃ to +50℃: ≤45% RH (without condensation)
• Non-operating:
Below +60℃: ≤90% RH (without condensation)
WARNING
To avoid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
Altitude
• Operating: below 3 km
• Non-operating: below 15 km
Safety Requirement
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Protection Level Against Electric Shock
ESD ±8kV
Installation (Overvoltage) Category
This product is powered by mains conforming to installation (overvoltage) category II.
WARNING
Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach the
product. Otherwise, the operator might be exposed to the danger of an electric shock.
Installation (Overvoltage) Category Definitions
Installation (overvoltage) category I refers to signal level which is applicable to
equipment measurement terminals connected to the source circuit. Among these
terminals, precautions are done to limit the transient voltage to a low level.
Installation (overvoltage) category II refers to the local power distribution level which
is applicable to equipment connected to the AC line (AC power).
Pollution Degree
Pollution Degree 2
Pollution Degree Definition
• Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs.
The pollution has no effect. For example, a clean room or air-conditioned office
environment.
• Pollution Degree 2: Normally only nonconductive pollution occurs. Temporary
conductivity caused by condensation is to be expected. For example, indoor
environment.
• Pollution Degree 3: Conductive pollution or dry nonconductive pollution that
becomes conductive due to condensation occurs. For example, sheltered
outdoor environment.
• Pollution Degree 4: The pollution generates persistent conductivity caused by
conductive dust, rain, or snow. For example, outdoor areas.
Safety Class
Class 1 – Grounded Product
1.6 Care and Cleaning
Care
Do not store or leave the instrument where it may be exposed to direct sunlight for
long periods of time.
Safety Requirement
4Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.

Cleaning
Clean the instrument regularly according to its operating conditions.
1. Disconnect the instrument from all power sources.
2. Clean the external surfaces of the instrument with a soft cloth dampened with mild
detergent or water. Avoid having any water or other objects into the chassis via the
heat dissipation hole. When cleaning the LCD, take care to avoid scarifying it.
CAUTION
To avoid damage to the instrument, do not expose it to caustic liquids.
WARNING
To avoid short-circuit resulting from moisture or personal injuries, ensure that the
instrument is completely dry before connecting it to the power supply.
1.7 Environmental Considerations
The following symbol indicates that this product complies with the WEEE Directive
2002/96/EC.
The equipment may contain substances that could be harmful to the environment or
human health. To avoid the release of such substances into the environment and
avoid harm to human health, we recommend you to recycle this product
appropriately to ensure that most materials are reused or recycled properly. Please
contact your local authorities for disposal or recycling information.
You can click on the following link
https://int.rigol.com/services/services/declaration
to download the latest version of the RoHS&WEEE certification file.
Safety Requirement
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 5

2Document Overview
This manual gives you a quick overview of the front and rear panel, user interface as
well as basic operation methods of DHO900 series.
TIP
For the latest version of this manual, download it from RIGOL official website ( http://
www.rigol.com ).
Publication Number
QGA37100-1110
Software Version
Software upgrade might change or add product features. Please acquire the latest
version of the manual from RIGOL website or contact RIGOL to upgrade the software.
Format Conventions in this Manual
1. Key
The front panel key is denoted by the menu key icon. For example,
indicates the "Default" key.
2. Menu
The menu item is denoted by the format of "Menu Name (Bold) + Character
Shading" in the manual. For example, Setup indicates the "Setup" sub-menu under
the "Utility" function menu. You can click or tap Setup to access the "Setup" menu.
3. Operation Procedures
The next step of the operation is denoted by ">" in the manual. For example,
> Storage indicates first clicking or tapping and then clicking or tapping
Storage.
4. Connector
The front/rear panel connector is denoted by "Brackets + Connector Name (Bold)",
for example, [AUX OUT].
Content Conventions in this Manual
DHO900 series digital oscilloscope includes the following models. Unless otherwise
specified, this manual takes DHO924S as an example to illustrate the operation
methods of DHO900 series.
Document Overview
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Model Max. Analog Bandwidth No. of Analog Channels
DHO914 125 MHz 4
DHO914S 125 MHz 4
DHO924 250 MHz 4
DHO924S 250 MHz 4
Document Overview
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 7

3General Inspection
1. Inspect the packaging
If the packaging has been damaged, do not dispose the damaged packaging or
cushioning materials until the shipment has been checked for completeness and
has passed both electrical and mechanical tests.
The consigner or carrier shall be liable for the damage to the instrument resulting
from shipment. RIGOL would not be responsible for free maintenance/rework or
replacement of the instrument.
2. Inspect the instrument
In case of any mechanical damage, missing parts, or failure in passing the electrical
and mechanical tests, contact your RIGOL sales representative.
3. Check the accessories
Please check the accessories according to the packing lists. If the accessories are
damaged or incomplete, please contact your RIGOL sales representative.
Recommended Calibration Interval
RIGOL suggests that the instrument should be calibrated every 18 months.
General Inspection
8Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.

4Product Overview
RIGOL introduces the brand new DHO900 series economy oscilloscope into its
oscilloscope family. With a compact size, the DHO900 series achieves a waveform
capture rate of 1,000,000 wfms/s with the UltraAcquire mode, 50 Mpts memory
depth, 12 bits resolution, and low noise.
4.1 Appearance and Dimensions
161.75 mm
265.36 mm
Figure 4.1 Front View
Product Overview
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77.38 mm
Figure 4.2 Side View
4.2 Front Panel Overview
126
3
8
9
10
11
12
13
15
16
5
14
4
7
Figure 4.3 Front Panel
17'' Capacitive Touch Screen 9 Trigger Controls
Product Overview
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2 Multipurpose Knobs 10 Horizontal Controls
3 Analyse Key 11 Vertical Controls
4 Measure Key 12 Probe Compensation Signal
Output Terminal/Ground Terminal
5 Cursor Key 13 Analog Channel Input Terminals
6 Common Tools Keys 14 Digital Channel Input Terminal
7 Touch Lock Key 15 USB HOST Port
8 Quick Action Key (Self-defined
function)
16 Power Key
4.3 Rear Panel Overview
4
3
5
7
6
1
2
8
Figure 4.4 Rear Panel
1AUX OUT Interface
2 AFG OUT Interface (for DHO914S and DHO924S only)
3 LAN Port
4 USB DEVICE Port
5 HDMI Connector
6 USB Type-C Power Connector
7 Security Lock Hole
8 Ground Terminal
Product Overview
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 11

4.4 User Interface Overview
1234 5 67
8
10
11
13
14
15 12
9
Figure 4.5 User Interface
1Waveform View 9 Split-screen Display
2 Run State Label 10 Notification Area
3 Horizontal Timebase Label 11 Math Labels
4 Sample Rate & Memory Depth
Label
12 AFG Label (for DHO914S and
DHO924S only)
5 Horizontal Position Label 13 Logic Analyzer Label
6 Trigger Label 14 Channel Labels
7 Function Toolbar 15 Function Navigation Icon
8 Result Sidebar
Product Overview
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5To Prepare for Use
5.1 To Adjust the Supporting Legs
Adjust the supporting legs properly to use them as stands to tilt the oscilloscope
upwards for stable placement of the oscilloscope as well as better operation and
observation. You can also fold the supporting legs when the instrument is not in use
for easier storage or shipment, as shown in the figure below.
（b）Fold the supporting legs
Supporting Legs
（a）Unfold the supporting legs
Figure 5.1 Adjusting the Supporting Legs
5.2 To Connect to Power
The power requirements of the oscilloscope are DC, 12 V, 4 A. Please use the power
adapter provided in the accessories to connect the oscilloscope to the AC power
source (100 V to 240 V, 50 Hz to 60 Hz), as shown in the figure below.
To Prepare for Use
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 13

Power Cord Connector
Figure 5.2 Connecting to Power
WARNING
To avoid electric shock, ensure that the instrument is correctly grounded.
5.3 Turn-on Checkout
After the instrument is connected to the power source, press the power key at the
lower-left corner of the front panel to power on the instrument. During the start-up
process, the instrument performs a series of self-tests. After the self-test, the splash
screen is displayed.
• Restart: Click or tap > Restart. Then a prompt message "Are you sure to
reboot?" is displayed. Click or tap OK to restart the instrument.
• Shutdown:
-Click or tap > Shutdown. Then a prompt message "Are you sure to
shutdown?" is displayed. Click or tap OK to shut down the instrument.
-Press and a prompt message "Are you sure to shutdown?" is displayed.
Click or tap OK to shut down the instrument.
-Press twice to shut down the instrument.
-Press for three seconds to shut down the instrument.
To Prepare for Use
14 Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.

TIP
You can also click or tap > Utility > Setup and set the "Power status" to "Switch on". The
instrument powers on once connected to power.
5.4 To Set the System Language
This oscilloscope supports multiple languages. You can click or tap > Utility >
Setup > Language to select the system language.
5.5 To Connect the Probe
RIGOL provides passive probes and logic probes (optional) for DHO900 series. For
specific probe models, refer to DHO900 Data Sheet. For detailed technical
information of the probes, please refer to the corresponding Probe User Guide.
Connect the Passive Probe
1. Connect the BNC terminal of the probe to an analog channel input terminal of the
oscilloscope on the front panel as shown in the figure below.
2. Connect the ground alligator clip or spring of the probe to the circuit ground
terminal, and then connect the probe tip to the circuit point to be tested.
To Prepare for Use
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 15

Figure 5.3 Connecting the Passive Probe
After you connect the passive probe, check the probe function and probe
compensation adjustment before making measurements. For details, please refer to
Function Inspection and Probe Compensation .
Connect the Logic Probe
1. Connect the output terminal of the logic probe to the digital channel input
terminal on the front panel of the oscilloscope in the correct direction, as shown in
the figure below.
2. Connect the other terminal of the logic probe to the signal terminal under test.
DHO900 provides the optional PLA2216 active logic probe. To cater to different
application scenarios, PLA2216 provides two methods to connect the signal under
test. For details, refer to
PLA2216 Active Logic Probe User Guide .
To Prepare for Use
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Figure 5.4 Connecting the Logic Probe
CAUTION
The digital channel input terminal does not support hot plugging. Do not insert or pull
out the logic probe when the instrument is in power-on state.
TIP
•For ground connection of high-speed signals, the ground lead shall be connected to the
ground test point near the measured signal, and the ground lead shall be kept as short
as possible.
•If there are a large number of input signal channels, please connect each signal to a
ground signal as far as possible. If there is only one ground test point, connect all ground
leads on the probe to the ground test point.
•Set the threshold value of the logic probe reasonably according to the actual level range
of the measured signal, and set the threshold value in the middle of the level range.
5.6 Function Inspection
1. Press the front-panel and a prompt message "Restore default settings?"
is displayed. Click or tap OK to restore the instrument to its factory default
settings.
2. Connect the ground alligator clip of the probe to the "Ground Terminal" as shown
in
Figure 5.5 .
To Prepare for Use
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. 17

3. Use the probe to connect the input terminal of CH1 and the "Compensation Signal
Output Terminal" of the probe, as shown in Figure 5.5 .
Compensation Signal
Output Terminal
Ground Terminal
Figure 5.5 Using the Compensation Signal
4. Set the probe ratio based on the attenuation of the probe, and then click or tap
> Auto.
5. Observe the waveform on the display. In normal condition, you should see a
square waveform similar to the waveform shown in the figure below.
Figure 5.6 Square Waveform Signal
6. Test the other channels in the same way. If you see the waveform, but the square
wave is not shaped correctly as shown above, perform the procedure described in
Probe Compensation . If you do not see the waveform, perform those steps again.
WARNING
To avoid electric shock when using the probe, please make sure that the insulated wire of
the probe is in good condition. Do not touch the metallic part of the probe when the
probe is connected to high voltage source.
To Prepare for Use
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