including ones which have already obtained the patent rights and those which are applying for. The
information in this manual will replace all that in the materials published originally.
The information in this manual was correct at the time of printing. However, OWON will continue to
improve products and reserves the rights to changes specification at any time without notice.
OWON is the registered trademark of the Lilliput Company.
optoelectronics, 19 Heming Road, Lantian industrial zone, Zhangzhou, Fujian, China
Tel:+86-596-2130430 Fax:+86-596-2109272
Fujian Lilliput Optoelectronics Technology Co.,Ltd.: The mansion of
Web:
www.owon.com.hk Mail: Business Consulting: info@owon.com.hk
Sale service: service@owon.com.hk
Park, ZhenZhuWan,
Tel:+86-592-2575666 Fax:+86-592-2575669
Xiamen Lilliput Technology Co.,Ltd.: the 5th floor, B Area, Chuangxin Mansion, Software
Huandao RD, Xiamen, Fujian, China
General Warranty
Lilliput warrants that the product will be free from defects in materials and
workmanship for a period of 3 years from the date of purchase of the product by the
original purchaser from the Lilliput Company. And the warranty period o f access ories
such as probe, battery, adapter is one year. This warranty only applies to the original
purchaser and is not transferable to the third party. If the product proves defective
during the warranty period, Lilliput either will repair the defective product without
charge for parts and labor, or will p rovid e a repla cemen t in ex chang e for th e defe ctiv e
product. Parts, modules and replacement products used by Lilliput for warranty work
may be new or reconditioned to like new performance. All replaced parts, modules
and products become the property of Lilliput.
In order to obtain service under this warranty, Customer must notify Lilliput of the
defect before the expiration of the warranty period. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by
Lilliput, and with a copy of customer proof of purchase.
This warranty shall not apply to any defect, failure or damage caused by improper use
or improper or inadequate maintenance and care. Lilliput shall not be obligated to
furnish service under this warranty a) to repair damage resulting from attempts by
personnel other than Lilliput representatives to install, repair or service the product; b)
to repair damage resulting from improper use or connection to incompatible
equipment; c) to repair any damage or mal function caused by the use of n on-Lilliput
supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or
difficulty of servicing the product.
Please contact the nearest Lilliput's Sales and Service Offices for services or a
complete copy of the warranty statement.
For better after-sales service, please visit www.owon.com.hk and register the
purchased product online.
Excepting the after-sales services provided in this summary or the applicable warranty
statements, Lilliput will not offer any guarantee for maintenance definitely declared or
hinted, including but not limited to the implied guarantee for marketability and
special-purpose acceptability. Lilliput should not take any responsibilities for any indirect,
special or consequent damages.
OWON HDS-N Series Handheld DSO & DMM Contents
Table of Contents
1. DECLARATION O F CO NFORMITY ················································ 1
1.1 Declaration of Conformity ············································································································ 1
8.13 Record ··········································································································································· 63
8.14 Using FFT ···································································································································· 66
8.15 System State Menu ····················································································································· 72
8.15.1 Real time clock ········································································································· 73
8.16 Setting of Time Base Mode ········································································································ 73
8.17 Data Transm ission ······················································································································ 75
10.2.2 Stor age of Oscilloscope ·························································································· 82
10.2.3 Replacing the Lithium Bat t er y Unit ········································································· 82
iii
OWON HDS-N Series Handheld DSO & DMM 1-Declaration of Conformity
1. Declaration of Conformity
1.1 Declaration of Conformity
HDS-N Series Handheld Digital Storage Oscilloscope & Multimeter
Manufacturer: Fujian Lilliput Optoelectronic Technology Co., Ltd.
Statement of Conformity
Base on the result using appropriate standards, the product is in conformity with
Electromagnetic Compatibility Directive 2004/108/EC
Low Voltage Directive 2006/95/EC
Sample tests
Standards used:
EN61010-1:2001(2nd edition)
Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory use-part 1: General Requirements
EN61326-1:2006
Electrical Equipment for Measurement, Control and Laboratory use-EMC
Requirements-part 1: General Requirements
EN61000-3-2:2000+A2:2005
Electromagnetic Compatibility (EMC)-part 3: Limits-Section 2: Limits for Harmonic
Current Emissions (Equipment Input Current less than/equal to 16A per phase)
EN61000-3-3:1995+A1:2001
Electromagnetic Compatibility (EMC)-part 3: Limits-Section 3 Limitation of Voltage
Fluctuations and Flicker in Low-Voltage Supply systems for Equipment with Rated
Current less than or equal to 16A
The tests have been performed in typical configuration.
This conformity is indicated by the symbol CE, i.e. "Conformite Europeenne".
1
OWON HDS-N Series Handheld DSO & DMM 1-Declaration of Conformity
7
Probe adjustment tools
●
8
USB communication cable or RS-232C communication cable
●
1.2 Package Contents
See the picture below. This picture is only for your reference. If any discrepancy
found between certain picture and product, please look the actual product.
# Description Standard Optional
1 Oscilloscope and Battery ●
2 AC-DC adapter ●
3 Oscilloscope Probe × 2 (grey) ●
4 Multimeter test lead × 2 (black and red) ●
5 USB Mass Storage connect cable ●
6 Extension module for small capacitance measurement ●
9 User Manual ●
10 CD-ROM (software) ●
11 Hard carrying case ●
12 Soft carrying case ●
13 the output terminal of 1 kHz 5 V square-wave test signal ●
Figure 1: Digital Oscilloscope Parts
2
OWON HDS-N Series Handheld DSO & DMM 2-Safety information
High Voltage
Refer to the
Protective
Chassis
Earth (ground)
2. Safety Information
In order to ensure the correct using and the best efficient service, please carefully read this user's
manual.
2.1 Safety Symbols and Terms
2.1.1 Safety Symbols
These symbols may appear in this manual or on the instrument.
Warning: "Warning" identifies conditions and actions that pose hazards to the users.
Caution: "Caution" identifies conditions and actions that may damage the product or
other properties.
DANGER:
Manual
Conductor
Terminal
Ground
Terminal
2.1.2 Safety Terms.
The following terms may appear on the instrument:
Danger: The term "Danger" is used in this manual to indicate that when you read this
mark, personal injury may be caused to you immediately.
Warning: The term "Warning" is used in this manual to indicate that when you read this
mark, personal injury may not be caused to you immediately, but you need to
be cautionary.
Notice: The term "Notice" is used in this manual to indicate that damages may be
caused on this product or other properties.
2.2 General Safety Information
Carefully read the following safety information in order to avoid any personal injury and damage
on this product or any products connected with it. This product can onl y be used in the specified
3
OWON HDS-N Series Handheld DSO & DMM 2-Safety information
Ground Clip
Signal Input
Electrical Outlet
Probe
Oscilloscope
AC Adapter
Ground Clip
Signal Input
Oscilloscope
(B
attery-power)
PC
Electrical Outlet
Probe
USB/COM Cable
applications to prevent any possible dangers.
Warning:
To avoid fire or electrical shock, please use proper power adapter. Use only the power
adapter appointed by the manufacturer and subject to approval of being used in the user's
country.
Warning:
The two channels of the oscilloscope are non-isolated electrically. The cha nnels should adopt
common basis during measuring. To prevent short circuits, the 2 probe ground must not be
connected to 2 different non-isolated DC level.
Warning:
The channels should adopt common basis during measuring. To prevent short circuits, the 2
probe ground must not be connected to 2 different non-isolated DC level.
The diagram of the oscilloscope ground wire connection:
The diagram of the ground wire connection when the battery-powered oscilloscope is
connected to the AC-powered PC through the ports:
It is not allowed to measure AC power when the oscilloscope is AC powered through the
adapter, or when the battery-powered oscilloscope is connected to the AC-powered PC
through the ports.
Warning:
To avoid fire or electrical shock if a test tool input is connected to more 42V peak (30Vrms)
or on circuits of more than 4800VA:
● Use only insulated voltage probes, test leads and adapter supplied with the test tool, or
indicated by OWON as suitable for the Oscilloscope & Multimeter .
● Before use, inspect voltage probes, test leads and accessories for mechanical damage and
replace when damaged.
●Remove all probes, test leads and accessories that are not in use.
4
OWON HDS-N Series Handheld DSO & DMM 2-Safety information
Ⅱ
Ⅱ
Ⅱ
● Always connect the power adapter first to the AC outlet before connecting it to the
Oscilloscope & Multimeter.
● Do not apply voltages that differ more than 400 V from earth ground to any input when
measuring in a CAT
● Do not apply voltages that differ more than 400 V from each other to the isolated inputs
when measuring in a CAT
● Do not apply input voltages above the rating of the instrument Use caution when using
1:1 test leads because the probe tip voltage will be directly transmitted to the
Oscilloscope & Multimeter.
● Do not use exposed metal BNC or banana plug connectors.
● Do not insert metal objects into connectors.
● Always use the Oscilloscope & Multimeter only in the manner specified.
● Voltage ratings that are mentioned in the warning are giver as limits for "working
voltage". The represent V ac rms (50-60Hz) for AC sine wave applications and as V dc
for DC applications. Overvoltage Category
for appliances and portable equipment .
environment.
environment.
refers to local level , which is applicable
Only qualified technical personnel are permitted to perform maintenance.
Pay attention to the nominal values of all terminals: To avoid fire or electric shock, please keep
a watchful eye on all nominal values and marks specified for this product. Before any connection
performed on this product, carefully read the user's manual of the product for further information
of nominal values.
No operation is allowed without the instrument cover plate: If the cover plate or panel has
been removed, do not perform any operation on this product.
No touch is allowed on bare conductors: When the product is powered on, do not touch any bare
joints or parts of the scope meter.
Operation is prohibited in case of any undetermined failure: When in doubt any damage on
this product, consult the qualified personnel for checking on it.
Keep ventilation in good condition: Refer to the user manual for detail installation in structions
in order to fix this product correctly and provide it with good ventilation conditions.
No operation is allowed under a humid environment.
No operation is allowed under an explosive environment.
Keep clean and dry on the product surface.
The method which stipulated according to the factory does not use the equipment, possibly can
damage the protection which the equipment provides.
5
OWON HDS-N Series Handheld DSO & DMM 3-General Characteristics
3. General Characteristics
Oscilloscope
2 in 1 (Multimeter function support);
Record length of 6,000 points for each channel;
Reading-out with the cursor;
Twenty automatic measurement functions;
Autoscale function;
Color liquid crystal display of high resolution and high contrast with
adjustable back light;
Storage and call-out of waveforms;
Automatic setting function provided capable of fast setting;
Multiple-waveform calculation function;
Implementation of detecting the average and peak values of the waveform;
Edge, video and alternate triggering function;
RS232 or USB communication ports;
Multiple Language User Interface.
Multimeter
3 3/4 digits;
Volts, Amps, Ohms, Diode, Capacitance, Continuity measurement;
10A maximum amplitude;
Isolated inputs between oscilloscope and multimeter.
6
OWON HDS-N Series Handheld DSO & DMM 4-Performing the General Inspection
4. Performing the General Inspection
4.1 Performing the General Inspection
When you have got a new HDS-N series oscilloscope, it is suggested that you should perform a
general inspection on the instrument according to the following steps.
4.1.1 Check whether there is any Damage on it Due to Trans por tation
If the packing boxes or foam cushions are found in serous damage, keep them in a proper place till
the complete instrument and accessories have passed the electrical and mechanical tests.
4.1.2 Make a Check on Accessories
The accessory list has been described in the picture of Digital Oscilloscope P arts of this manual.
You can make a check and find whether there is any accessory loss with reference to the
Appendix. In case of any accessory loss or damage, consult the OWON dealer responsible for
such a business or the local office of OWON.
4.1.3 Make a Check on the Complete Instrument
If the instrument is damaged in its appearance or it fails in normal operation or performance test,
consult the OWON dealer responsible for such a business or the local office of OWON. If the
instrument is damaged due to transportation, keep the packing in a proper place and consult the
transportation department and the OWON dealer responsible for such business, who will provide
an instrument replacement or maintenance.
7
OWON HDS-N Series Handheld DSO & DMM 5-Input Connections
5. Input Connections
5.1 Input Connections
5.1.1 Input connections
See the following Figure 2:
Figure 2:Input connections
Description:
1. The power adapter is supplied for AC power supply and battery recharging.
2. Multimeter test lead.
3. Multimeter input jacks, including four circular banana jacks. The first jack measuring the
current 2 A-10A, the second jack on the current Measurement, the third COM ground input,
and the fourth measuring voltage, resistance, Capacitance input.
4. Oscilloscope probes.
5. Oscilloscope channel inputs: the upper one is for Channel 1 (CH1), while the lower one is for
Channel 2 (CH2).
6.
The output terminal of 1 kHz/5 V square-wave test signal.
8
OWON HDS-N Series Handheld DSO & DMM 5-Input Connections
5.1.2 The connection of 1 kHz/5 V Square-wave t est signal
At the left side of the oscilloscope, it is a port for testing 1 kHz/5 V square-wave
signal which is used to adjust the probe, shown as Fig.3
Fig.3. The connection of Square-wave test signal
5.2 Front Panel and Keys Overview
See the following Figure 4:
9
OWON HDS-N Series Handheld DSO & DMM 5-Input Connections
1
2
3
4
5
6
18
19
20
26
27
28
29
23
17
9
10
11
15
24
25
22
12
14
13
21
8
16
7
Description:
1. AC adapter Port
2. RS-232C Port.
3. USB Port.
4. USB Mass Storage Port.
5. Power switch.
Figure 4:Front Panel
6. F1 - F5: Switch or Adjust options for each menu.
10
OWON HDS-N Series Handheld DSO & DMM 5-Input Connections
7. AUTO SET: Under DSO mode, automatically selects the horizontal scales, vertical scale, and
trigger level according to the input signal.
8. COPY: Press to save the waveform data into the USB Mass Storage Device.
9. ▲ (red): Adjust voltage scale or vertical position in Channel 1.
10. VOLTS POSITION (red): Switch between voltage scale and vertical position in Channel 1.
11. ▼ (red): Adjust voltage scale or vertical position in Channel 1.
12. ▲ (blue): Adjust voltage scale or vertical position in Channel 2.
13. VOLTS POSITION (blue): Switch between voltage scale and vertical position in Channel 2.
14. ▼ (blue): Adjust voltage scale or vertical position in Channel 2.
15. RUN/STOP: key for running or stopping the operation
16. LIGHT: Light switch.
17. DMM/OSC: Operation mode switching key between oscilloscope and multimeter.
18. MENU ▲: Choose the upper item on the menu list.
19. MENU: Show / Hide the menu
20. MENU ▼: Choose the lower item on the menu list.
21. OPTION: the key for DSO setting and combines with four arrow keys. Then to set main time
base, trigger horizontal position and trigger vertical position. Furthermore the keys possible to
adjust the display multiplying factors of M waveform (CHMath Volts/Div ) and display
vertical position (CHM Zero) during waveform calculation and to adjust cursor 1 (V1 or T1)
and cursor 2 (V2 or T2) position during cursor measurement.
28. R: Selects DMM impedance, diode, continuity and capacitance measurement
29. SET: convert AC and DC during measure current or voltage in Multi-meter; convert
resistance, diode, on-off and capacitance measure during resistance measuring.
11
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
7
8
20
2
3
18
5
17
16
9
6
1
4
19
1015
121114
13
6. Using the Oscilloscope
6.1 About this Chapter
This chapter provides a step-by-step introduction to the scope functions. The introduction does not
cover all of the capabilities of the scope functions but gives basic examples to show how to use the
menus and perform basic operations.
6.2 Powering Up the Oscilloscope
Connect oscilloscope to AC power via AC-DC adapter as shown in Figure 1. (The oscilloscope
may still work with built-in Li-ion battery even without AC power supply).
Turn the oscilloscope on by pressing down the power on/off key
The instrument then performs self checking aft er power o n. A greeting window and a sentence
"Press any key to continue." will display on the screen when the system finishes self checking.
The users can press any key to enter the measuring function.
The oscilloscope is powered up in its last setup configuration.
.
6.3 Oscilloscope Operation Window
See the following figure 5:
Figure 5: Oscilloscope Operati on Window
12
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
Description:
1. Battery electric quantity indicating symbols, including
, , and .
2. Auto measurement window 1, in which "f "means frequency, "T" means cycle, "V" means
the average value, "Vp" the peak-peak value ,"Vk" the root-mean-square value,. "Ma" the
maximu m amplitud e value, "Mi" the minimu m amplitud e value, "Vt" th e Voltage value of
the waveform's flat top value, "Vb" the V oltage value of the waveform's flat base, "Va" the
amplitude value, "Os" the overshoot value, "Ps" the Preshoot value, "RT" the rise time value,
"FT" the fall time value, "PW" the +width value, "NW" the -Width value, "+D" the +Duty
value, "-D" the -Duty value, "PD" the DelayA
B value and "ND" the DelayAB
value.
3. Auto measurement window 2.
4. The pointer indicates the horizontal triggering position.
5. This reading gives the Time Difference between the horizontal triggering position and the
screen centerline. It reads zero when the pointer is in the center of the screen.
6. The trigger state indicates the following information.
Auto: The oscilloscope is working in the automatic mode and displaying the waveform
under the non-trigger state.
Trig'd: The oscilloscope has detected a trigger and collecting the information generated
after the trigger.
Ready: All pre-triggered data have been captured and the oscilloscope has been ready to
receive trigger signals.
Scan: The oscilloscope can gather and display the waveform data continuously in scanning
mode.
Stop: The oscilloscope has stopped collecting the waveform data.
7. Red and blue index display triggers vertical position during alternate trigger and triggers
index become green when it reaches edge trigger or video trigger.
8. A hidden-style menu: With the MENU key pressed, you can view or hide the menu.
9. Menu setting options: There are different setting options for different menus.
10. It reads the value of trigger voltage level.
11. The display shows the trigger signal source.
12. The reading gives the value of primary time base.
13. These graphics present the coupling modes of channel 2(CH2). The graphic "~" indicates
AC, the graphic "-" indicates DC, the graphic "
" indicates GND.
14. This reading shows the vertical Voltage Unit Scale of CH2.
13
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
15. These graphics show the coupling mode of CH1, among which the graphic "~" express
indicates AC, the graphic "-" indicates DC, the graphic "
16. This reading shows the vertical Voltage Unit Scale of CH1.
17. The blue pointer gives the grounding datum point of the waveform on CH2, which is the zero
position of CH2. No display of this pointer indicates that the channel has not been opened.
18. OPTION operation prompt: There are different prompts for different OPTION operations.
19. Waveform display area. Red waveform represent CH1, blue waveform represent CH2.
20. The red pointer gives the grounding datum point of the waveform on CH1, which is the zero
position of CH1. No display of this pointer indicates that the channel has not been opened.
" indicates GND.
6.4 Menu Description
The following example shows how to use the tool's menus to select a function, as shown in the
following figure.
1. Press the MENU key to display the Function Menu on the right of the screen and the
corresponding optional settings on the bottom. Press MENU again will hide the Function
Menu.
2. Press the MENU
3. Choose one key from F1 to F5 and press it to change function setting.
See the following figure 6:
▲ or MENU ▼ key to select different function menus.
Figure 6: the Tool's Menus
14
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
6.5 Manually Setting the Vertical System, Horizontal System
and Trigger Position
6.5.1 Setting the Vertical System
To set the vertical system of CH1:
(1) Press VOLT S POSITION (red) key to toggle between bellows displayed at the bottom left
of the screen:
▲/▼ – CH1 Zero
▲/▼ – CH1 Volts/Div
(2) When "▲/▼ – CH1 Zero" is displayed, ▲ (red) and ▼ (red) can be used to adjust the
vertical position of CH1; the relevant information will be displayed.
(3) When "▲/▼ – CH1 Volts/Div" is displayed, ▲ (red)and ▼ (red) can be used to adjust the
voltage scale of CH1; the relevant information will be displayed.
To set the vertical system of CH2:
(1) Press VOLTS POSITION (blue) key to toggle between bellows:
▲/▼ – CH2 Zero
▲/▼ – CH2 Volts/Div
(2) When "▲/▼ – CH2 Zero" is displayed, ▲(blue) and ▼(blue) can be used to adjust the
vertical position of CH2, the relevant information will be displayed;
(3) When "▲/▼ – CH2 Volts/Div" is displayed, ▲ (blue)and ▼ (blue) can be used to adjust
the voltage scale of CH2, the relevant information will be displayed.
6.5.2 Setting the Horizont al System and Trigger Po sition
OPTION key is a multiple setting key to set trigger vertical position, main time base and
horizontal position (trigger horizontal position) during edge trigger and video trigger; or to set
trigger vertical positio n for Horizo ntal time base and tri gger vertical posi tion and horizontal level
position during alternate trigger.
The following example shows how to use OPTION key to make a setting.
The following guidance is for the operation on the mode of edge triggering and video
triggering.
1. Press once the OPTION key; the following is displayed at the bottom left side of the screen,
as shown in the figure below.
15
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
◄/► – Time Base
▲/▼ – Trig
See the following figure 7:
Figure 7
2. Press ◄ (yellow) or ► (yellow) to adjust the main time base; press ▲ (yellow) or▼ (yellow)
to adjust trigger level position, press R key to "zero" the trigger level position.
3. Press OPTION again and left bottom side display as
◄/► – Time
▲/▼ – Trig
See the following figure 8:
Figure 8
4. Press ◄(yellow) or ►(yellow)to adjust time base horizontal position, press V key to "zero" the
16
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
—
—
—
horizontal position; press ▲(yellow) or ▼(yellow) to adjust trigger level position, press R key
to "zero" the trigger level position.
5. Press OPTION again to back up operation 1.
The following guidance is for the operation on the mode of alternative triggering.
1. Press OPTION and left bottom display as:
Time
Trig 2 (or Trig 1)
See the following figure 9:
Figure 9: Adjust Time and Trig 2
2. Press ◄ (yellow) or ► (yellow) to adjust time base horizontal position, press V key to "zero"
the horizontal position; press ▲(yellow) or ▼(yellow) to adjust trigger level position in Channel 2
(or Channel 1), press R key to "zero" the trigger level position.
3. Press OPTION again and left bottom display as:
—Time Base
Trig 1 (or Trig 2)
See the following Figure 10:
17
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
Figure 10: Adjust Time Base and Trig 1
4. Press ◄(yellow) or ► (yellow) to adjust main time base ; press ▲(yellow) or▼(yellow) to
adjust trigger level position in Channel 1 (or Channel 2), press R key to "zero" the trigger level
position.
5. Press OPTION again to back up operation 1.
Term interpretation
Vertical scale factor: It stands for the voltage amplitude represented by a division in the
vertical direction of the display area, through the adjustment of which you can amplify or
attenuate the signal and thus regulate the signal amplitude into the expected measurement
range.
Vertical zero position: It is referred to as the grounding datum point, through the adjustment
of which you can regulate the display position of the waveform on the screen.
Main time base: It means the time values represented by a division in the horizontal direction
of the display area.
Trigger horizontal position: It means the time deviation between the actual trigger point and
the screen central line, which will be displayed as 0 at the center point of the screen.
Trigg er leve l po sitio n: It represents the voltage deviation between the actual trigger level and
the zero position of the triggering signal source channel.
6.6 Recall factory settings
If you want to reset the Oscilloscope to the factory settings, do the following:
1. Press MENU key and the function menu appears on the right side of the screen
2. Press the MENU
visible at the bottom of the screen.
3. Press F1 key to select "Recall Factory" to recall the factory settings.
▲ or MENU ▼ key to select FUNCTION setting and three options are
18
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
4. Press F2 key to select "Auto calibration". If the ambient temperature variation is up to or
larger than 5 Celsius degree, the Auto calibration function should be performed. B ut this will
not affect the using and capability by the heat from LCD and electronic component
See the following Figure 11:
Figure 11: Reset the Oscilloscope
6.7 Input Connections
See Figure 2 on P8.
Look at the bottom and the right of the Oscilloscope. The Oscilloscope has six signal inputs: two
safety BNC jack inputs (CH1 and CH2) for scope measurements, four safety 4-mm banana jack
inputs for Multimeter R, V and A measurements.
Isolated input allows independent floating measurements between Multimeters and Scopes.
6.8 Displaying an Unknow n Signal w it h Auto Set
The Auto-Set feature lets the Oscilloscope display and measure unknown signals automatically.
This function optimizes the position, range, time base and triggering, assures a stable display of
virtually any waveform. This feature is especially useful for quickly checking several signals.
To enable the Auto-Set feature, do the following:
1. Connect the test probe to the tested signals.
2. Press the AUTO SET key and the Oscilloscope is under the automatic measurement
condition. The tested signals appear on the screen.
19
OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
6.9 Automatic Zero-returning of Trigger Horizontal Posit ion
and Trigger Level Position
When we adjust the trigger horizontal position and trigger level position to be maximal to make it
off the screen center remotely, then we perform the following steps to make trigger horizontal
position and trigger level position return to zero automatically.
1. Press V key, the trigger horizontal position automatically returns to zero.
2. Press R key, the trigger level position automatically returns to zero.
6.10 Automatic Measurements
The Oscilloscope offers 20 ranges of automatic scope measurements. Your can display two
numeric readings: measurement 1 and measurement 2. These readings are selectable
independently, and the measurements can be done on the input CH1 or input CH2 waveform.
To choose a frequency for CHI1, do the following:
1. Press MENU key and the function menu appears on the right side of the screen.
2. Press MENU
at the bottom of the screen.
3. Press F1 key and select Freq CH1 from the mean square root value item. The
measurement 1 window turns its color into red and shows the frequency for input CH1.
To choose a Peak-Peak measurement for Input CH2, do the following:
1. Press MENU key and the function menu are displayed on the right side of the screen.
2. Press MENU
displayed at the bottom of the screen.
3. Press F4 key to select PK-PK CH2. The measurement 2 window turns its color to be blue
and shows the peak-peak value for input CH2.
See the following figure 12:
▲ or MENU ▼ key to select MEAS SET1. Five items selectable are visible
▲ or MENU ▼ key and select MEAS SET2, with 5 items selectable
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OWON HDS-N Series Handheld DSO & DMM 6-Using the Oscilloscope
Figure 12: Automatic Scope Measurements
6.11 Freezing the Screen
You can freeze the screen (all readings and waveforms)
1. Press the RUN/STOP key to freeze the screen and STOP appears at top right side of the
screen.
2. Press the RUN/STOP key once more to resume your measurement.
See the following figure 13:
Figure 13: Freezing the Screen
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