TECPEL OS Series User manual

OS Series Handheld Digital Storage
Oscilloscope & Multimeter
User Manual
OS-1022
OS-2062
OS-3102

General Warranty
We warrants that the product will be free from defects in materials and workmanship
for a period of three years from the date of purchase of the product by the original
purchaser from our company. And the warranty period of accessories 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, we either will repair the defective product without charge for parts and labor,
or will provide a replacement in exchange for the defective product. Parts, modules
and replacement products used by our company for warranty work may be new or
reconditioned to like new performance.All replaced parts, modules and products
become the property of our company.
In order to obtain service under this warranty, Customer must notify our company 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
our company, 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. We shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel
other than our company 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 malfunction caused by the use of not our 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 Sales and Service Offices for services or a complete copy of
the warranty statement.
Excepting the after-sales services provided in this summary or the applicable warranty
statements, we 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. we should not take any responsibilities for any indirect, special or consequent
damages.

OS Series Handheld DSO & DMM Contents
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Table of Contents
1. DECLARATION OF CONFORMITY ················································1
1.1 Declaration of Conformity ············································································································1
1.2 Package Contents····························································································································2
2. SAFETY INFORMATION···································································3
2.1 Safety Symbols and Terms············································································································3
2.1.1 Safety Symbols··········································································································· 3
2.1.2 Safety Terms. ·············································································································· 3
2.2 General Safety Information··········································································································3
3. GENERAL CHARACTERISTICS ····················································6
4. PERFORMING THE GENERAL INSPECTION ·····························7
4.1 Performing the General Inspection ·····························································································7
4.1.2 Make a Check on Accessories··················································································· 7
4.1.3 Make a Check on the Complete Instrument····························································· 7
5. INPUT CONNECTIONS ·····································································8
5.1 Input Connections···························································································································8
5.1.1 Input connections ··········································································································· 8
5.1.2 The connection of 1KHz/5V Square-wave test signal······················································ 9
5.2 Front Panel and Keys Overview···································································································9
6. USING THE OSCILLOSCOPE·······················································12
6.1 About this Chapter·······················································································································12
6.2 Powering Up the Oscilloscope·····································································································12
6.3 Oscilloscope Operation Window································································································12
6.4 Menu Description··························································································································14
6.5 Manually Setting the Vertical System, Horizontal System and Trigger Position··············15
6.5.1 Setting the Vertical System····························································································15
6.5.2 Setting the Horizontal System and Trigger Position························································15
6.6 Recall factory settings··················································································································18
6.7 Input Connections·························································································································19
6.8 Displaying an Unknown Signal with Auto Set·········································································19
6.9 Automatic Zero-returning of Trigger Horizontal Position and Trigger Level Position···20
6.10 Automatic Measurements··········································································································20
6.11 Freezing the Screen····················································································································21
6.12 Using Average for Smoothing Waveforms·············································································22
6.13 Using Persistence to Display Waveforms················································································22

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6.14 Using Peak Detection to Display Glitches···············································································23
6.15 Selecting AC-coupling················································································································24
6.16 Reversing the Polarity of the Displayed Waveform······························································25
6.17 Using Waveform Mathematics Functions ··············································································26
6.18 Use USB mass storage device to save waveform data···························································27
7. USING THE MULTIMETER·····························································28
7.1 About this Chapter·······················································································································28
7.2 Making Meter Connections·········································································································28
7.3 Multimeter Operation Window··································································································28
7.4 Making Multimeter Measurements···························································································29
7.4.1 Measuring Resistance Values···················································································29
7.4.2 Measuring Diode········································································································30
7.4.3 On-off Test ··················································································································31
7.4.4 Measuring Capacitance·····························································································31
7.4.5 Measuring DC Voltage·······························································································32
7.4.6 Measuring AC Voltage·······························································································33
7.4.7 Measuring DC Current·······························································································34
7.4.8 Measuring AC Current·······························································································35
7.5 Freezing the Readings··················································································································36
7.6 Taking a Relative Measurement·································································································37
7.7 SelectingAutomatic/ManualRangeAdjustment······································································38
8. ADVANCED FUNCTION OF OSCILLOSCOPE··························39
8.1 About this Chapter·······················································································································39
8.2 Setting the Vertical CH1 and CH2·····························································································39
8.2.1 Setting the Channel Coupling···················································································40
8.2.2 Open and Close Settings on Channel······································································41
8.2.3 Setting the probe attenuation····················································································41
8.2.4 Setting of Inverted Waveform····················································································42
8.3 Make the Math Function Menu Setting····················································································42
8.4 Setting the Trigger System ··········································································································43
8.5 Triggering Control························································································································44
8.5.1 Edge Trigger···············································································································44
8.5.2 Video Trigger··············································································································45
8.5.3 Alternate trigger ···········································································································47
8.6 Selecting the acquisition mode····································································································49
8.7 Display Setting·······························································································································50
8.7.1 Display Style···············································································································50
8.7.2 Persistence·················································································································51
8.7.3 XY Mode·····················································································································51
8.7.4 Cymometer·················································································································52
8.8 Waveform Saving Setups·············································································································52

OS Series Handheld DSO & DMM Contents
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8.8.1 Waveform Saving Setups in normal mode······································································52
8.8.2 Waveform Saving Setups in FFT mode ··········································································54
8.9 Function Setting Menu·················································································································55
8.10 Making Automatic Measurements···························································································55
8.11 Setting the Cursor Measurements····························································································57
8.11.1 Setting the cursor measurement in normal mode···························································57
8.11.2 Setting the cursor measurement in FFT mode·······························································60
8.12 Autoscale ······································································································································61
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········································································································74
8.17 Data Transmission······················································································································75
9. TROUBLE SHOOTING····································································76
10. APPENDIX························································································77
10.1AppendixA: Specifications········································································································77
10.1.1 Oscilloscope·············································································································77
10.1.2 Meter·························································································································79
10.1.3 General Specifications·····························································································81
10.2Appendix B: Maintenance and Cleaning················································································82
10.2.1 Maintenance·············································································································82
10.2.2 Storage of Oscilloscope ··························································································82
10.2.3 Replacing the Lithium Battery Unit·········································································82

OS Series Handheld DSO & DMM 1-Declaration of Conformity
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1. Declaration of Conformity
1.1 Declaration of Conformity
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".

OS Series Handheld DSO & DMM 1-Declaration of Conformity
2
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 ●
7
Probe adjustment tools
●
8
USB communication cable or RS-232C communication cable
●
9 User Manual ●
10 CD-ROM (software) ●
11 Hard carrying case ●
12 Soft carrying case ●
13 the output terminal of 1KHz 5V square-wave test signal ●
Figure 1: Digital Oscilloscope Parts

OS Series Handheld DSO & DMM 2-Safety information
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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.
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 only be used in the specified
DANGER:
High Voltage
Refer to the
Manual
Protective
Conductor
Terminal
Chassis
Ground
Earth (ground)
Terminal

OS Series Handheld DSO & DMM 2-Safety information
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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 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.
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:
Ground Clip
Signal Input
Electrical Outlet
Probe Oscilloscope AC Adapter
The diagram of the ground wire connection when the battery-powered oscilloscope is
connected to theAC-powered PC through the ports:
Ground Clip
Signal Input
Oscilloscope
(Battery-power) PC Electrical Outlet
Probe
USB/COM Cable
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 us 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.

OS Series Handheld DSO & DMM 2-Safety information
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●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
Ⅱ
environment.
●Do not apply voltages that differ more than 400 V from each other to the isolated inputs
when measuring in a CAT
Ⅱ
environment.
●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
Ⅱ
refers to local level , which is applicable
for appliances and portable equipment .
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 instructions
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.

OS Series Handheld DSO & DMM 3-General Characteristics
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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;
Multimeter
3 3/4 digits;
Volts, Amps, Ohms, Diode, Capacitance, Continuity measurement;
10A maximum amplitude;
Isolated inputs between oscilloscope and multimeter.

OS Series Handheld DSO & DMM 4-Performing the General Inspection
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4. Performing the General Inspection
4.1 Performing the General Inspection
When you have got a new OS series oscilloscope, it is suggested that you should perform a
general inspection on the instrument according to the following steps.
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 Parts 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 us dealer responsible for such a
business or the local office of our company.
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 us dealer responsible for such a business or the local office of our company. If the
instrument is damaged due to transportation, keep the packing in a proper place and consult the
transportation department and our company dealer responsible for such business, who will provide
an instrument replacement or maintenance.

OS Series Handheld DSO & DMM 5-Input Connections
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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 1KHz/5V square-wave test signal.

OS Series Handheld DSO & DMM 5-Input Connections
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5.1.2 The connection of 1KHz/5V Square-wave test signal
At the left side of the oscilloscope, it is a port for testing 1 KHz/5V 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:

OS Series Handheld DSO & DMM 5-Input Connections
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Figure 4：Front Panel
Description:
1. AC adapter Port
2. RS-232C Port.
3. USB Port.
4. USB Mass Storage Port.
5. Power switch.
6. F1～F5: Switch or Adjust options for each menu.

OS Series Handheld DSO & DMM 5-Input Connections
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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.
22. ▲ (yellow): Oscilloscope display upward adjustment key.
23. ▼ (yellow): Oscilloscope display downward adjustment key.
24. ►(yellow): Oscilloscope right-direction adjustment key.
25. ◄(yellow): Oscilloscope left-direction adjustment key.
26. A: Selects DMM current measurement
27. V: Selects DMM voltage 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.

OS Series Handheld DSO & DMM 6-Using the Oscilloscope
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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 after power on. 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:
7
8
20
2 3
18
5
17
16
9
6
1
4
19
10
15 12 11
14 13
Figure 5: Oscilloscope Operation Window

OS Series Handheld DSO & DMM 6-Using the Oscilloscope
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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
maximum amplitude value, “Mi” the minimum amplitude value, “Vt” the Voltage value of
the waveform’s flat top value, “Vb” the Voltage 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 DelayA B
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.

OS Series Handheld DSO & DMM 6-Using the Oscilloscope
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15. These graphics show the coupling mode of CH1, among which the graphic “～” express
indicates AC, the graphic “－” indicates DC, the graphic “” indicates GND.
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.
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
▲or MENU ▼key to select different function menus.
3. Choose one key from F1 to F5 and press it to change function setting.
See the following figure 6:
Figure 6: the Tool’s Menus

OS Series Handheld DSO & DMM 6-Using the Oscilloscope
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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 VOLTS 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 Horizontal System and Trigger Position
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 position for Horizontal time base and trigger vertical position 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.