HeFei Jinhan Electronic JDS2022S Reference manual

Introduction of JDS2022S/JDS2012S/JDS2023 series

handheld digital oscilloscope

Model

Handwidth

Real time sampling

rate

Memory depth

JHJDS2012S

Single channel 25MHZ

Single channel

200MSa/s

2Kpts

JHJDS2022S

Double channel 25MHZ

Double channel

200MSa/s

2Kpts×2

JHJDS2023

Single channel 20MHZ

Single channel

200MSa/s

2Kpts

The First Chapter Introductory guide

JHJDS30 series portable digital storage oscilloscope is small, lightweight portable

instruments. To provide customers with convenient and easy to operate, the front

panel can perform basic tests.

This chapter mainly elaborates how to perform the following tasks:

△The front panel and the user interface

△General inspection and functional check

△The probe compensation

△Match the decay factor of probe

1.1 Rudimentray knowledge of the front panel and the user interface

Before use,it is strongly recommended that you should fellow the guides below to get rudimentary

knowledge of the front panel and the user interface.

JHJDS2022S oscilloscope offer a brief and clear front panel for your convenient operation.There

are each functional keys blow the screen.The “MENU” is menu operational key which can be used

to set different options of menu. The red key is power button to control ON/OFF by long pressing

it.Other functional keys can be used to enter different function menu or given function

application.As shown in Figure 1-1

JHJDS2012S series digital oscilloscope with menu in English.As shown in Figure 1-2

JHJDS2023 series digital oscilloscope with menu in English.As shown in Figure 1-3

P 1-4 interface display

1.2Functional check

First of all to the oscilloscope to do a quick examination to determine whether the

instrument work is very normal Necessary. Please follow the following steps:

1. After confirm the oscilloscope has been installed on the battery, long press on

the oscilloscope panel "PRW" button, Until when the interface display open.

2. Set the switch on the oscilloscope probe to X1 and connect probe and oscilloscope

channel 1. Aim the slot of probe at connection of CH1,press,then rotate right to

tighten the probe.

3. Set the CH1 menu attenuation coefficient of the probe is 10 x (CH1 - > F3 key

order

Select 10 x). Press the AUTO button and wait for a moment, this screen will display

frequency

1 KHZ, peak value to 3 v square wave signal.

Open 5. Close the CH1 and CH2, repeat steps 2 and 3.

Figure 1-4 probe set

1.3Probe

1.the safety of probe

There is a protection setting around the probe to protect fingers from electric

shock.

Before any measurement, link the probe to oscilloscope and make electrical

grounding.

2.probe compensation(see the probe specification)

In the first time connect the probe to any input channel, probe compensation is

required to matching the probe and channel. Or the probe will lead to a

measuring error. Follow the steps below when adjust probe compensation.

(1) set the attenuation of channel and probe to 10X, then connect the probe to

channel 1.If use the hook probe, make sure the connection with the probe is

reliable.

(2) Connect the probe to signal generator output channel, earth clamp should be

linked to generator connection, display the channel, then press the “AUTO”

button.

(3) Check the shape of the waveform.As shown in figure 1-5.

(4) Adjust the probe and repeat the operation if necessary.

The Second Chapter Function introduce and operation

To use the oscilloscope effectively, you need to understand the follow

function:

Menu and control button

connector

AUTO

setting

Default

setting

Vertical

system

Level system

Triggering

system

Display

system

Storage

system

Support

system

2.1 menu and control button:

All model:

CH1,CH2

Display the CH1,CH2 setting menu

CH/AVΩ

Press “CH” enter oscilloscope mode, press “SG” enter multi meter

mode

The power button

OSC/SG

Press “OSC” enter oscilloscope mode, press “SG” enter generator

mode

AUTO

Auto set control state of oscilloscope and realize the one key trigger

function between 50hz-40Mhz, available for both CH1 and CH2

TRIG

Display “trigger” control menu

HORI

Display “level” control menu

RUN

Gather or stop gathering waveform. notice: when stop, you can

adjust vertical gears and horizontal timebase within limites,

amount to extend the waveform in level or vertical direction

Function menu interface, enter the waveform storage interface

when first press, enter the display setting interface when second

press, enter the system setting interface when third time

To enlarge/shrink or move display cursor in scope, to adjust

range in multimeter

To move display cursor or waveform in scope, to chose test mode

in multimeter

To Save the current waveform

F1,F2,F3

Correspond to the first/second/third option menu in setting

function, shortcut key in scope and multimeter

2.2 Connection

Figure 2.1 Figure 2.2 Figure 2.3

In F2.1 CH1 and CH2 are input connections of scope

In F2.2 CH1 is input connection of scope, COM port and VΩis to connect black

and red probe

In F2.3 CH1 is analog channel input connection of scope,CH2 is digital channel

input connection of scope, OUT is output connection of generator

2.3Automatic setup

JDS2022S/JDS2012S/JDS2023 digital oscilloscopes are with functions of

automatic setting. According to the input signal, the scope could automatic

adjust voltage gears/timebace/trigger mode to show the best waveform.

“AUTO” is the automatic setup button.

2.4 Default setting

Oscilloscope is set to default setting mode before it leaves factory. Press “MENU”,

switch to “Firm-mode Restore” interface, then chose “F3” to restore factory

setting.

2.5 Vertical System

CH1,CH2 channel and setting

Each channel is with independent vertical menu. Every item is separate set

according to different channel. Press “CH1” or “CH2” button, System will show

operate menu of CH1 or CH2.

Coupling

Obstruct the DC component

LetAC or DC component go through

Probe

10X

100X

Chose a value according the attenuation coefficient of

probe to run a correct reading of vertical deflection

factor. Three kinds:1X,10X,100X

Display

OFF

Switch on waveform display

Switch off waveform display

Frequency

Automatic show the current input frequency of singal

Peak-peak

Automatic show peak-peak value

Max

Automatic show the max voltage value

Min

Automatic show the min voltage value

Duty cycle

Automatic show the duty cycle value

1. Setting channel coupling

Assume that signal in CH1,it is a square signal with alternating component:

●Press“CH1” →“coupling DC”, set to dc coupling mode. Then the ac

component and dc component of signal could be got through together.

●Press“CH1” →“coupling AC”, set to ac coupling mode. Then the dc

component of signal is be obstructed.

2. Probe Scale Setting

To match attenuation coefficient of probe, you need to adjust probe scale in

channel menu accordingly. If the attenuation coefficient is 10:1,then the probe

scale should be 10X,and so on.Or you will get a wrong date.

3. Waveform Display Setting

You can display waveform of any channel or not by setting.As a sample,display

the waveform of CH1 but not show the waveform of CH2:

●Press “CH1” →“Display Open”,it will display waveform of CH1.

●Press “CH2” →“Display Close”,it will not display waveform of CH2.

4.Vertical volt/div Setting

When setting vertical volt/grid,the range is 100mV/div-50V/div(probe 10X),or

10mV/div-5V/div(probe 1X),or 1V/div-500V/div(probe 100X), stepping is

1-2.5-5,take CH1 for example:

2.6 Horizontal Systems

Use the control buttons to change the level of the horizontal scale (time base),

trigger horizontal position (trigger position) in memory.Changing the horizontal

scale causes the waveform relative to the screen center expansion or

contraction,Change the horizontal position relative to the change point of the

waveform trigger position.

Table 2-2 Main Menu of horizontal time base

●Horizontal scale: Adjust the main group, press the "HORI" button,Press"

"or" " to change the scale of the level.To zoom in or out waveform. If you

want to stop waveform acquisition, press the "RUN" key can be realized. As

Figure 2-10, Figure 2-11

Figure 2-10 Figure 2-11

●Horizontal Position: adjust the horizontal position of the waveform (trigger

position relative to the center of the screen).Press the "HORI" button,Through "

" or " "to move the waveform left or right. The key resolution vary according

to time base. Press "AUTO" key can make the horizontal position return to zero.

2.7 Trigger system

The trigger determines when the oscilloscope starts to acquire data and display

waveforms.Once the trigger is set up correctly, it can convert the unstable

display into meaningful waveforms.Trigger Control menu button" TRIG".

●Trigger Control

Master

time

base

Horizontal main time base setting is used to display the waveform

Master

time

base

cursor

state

Dsiplay

Set cursor display or not display

Source

Select the measurement signal of the cursor,

That second press "HROI" enter "cursor display" screen

The cursor is displayed here is the opposite of this menu

Type

There are two types of time and voltage

Cursor

display

Cursor1

Cursor 2

Timebase offset relative to the main vector

Incremental

Cursor 2 - Cursor 1

Trigger: The oscilloscope trigger mode is edge triggered.

●Edge Trigger: When the edge of the trigger signal reaches a given level,

Trigger occurs.Edge trigger is triggered on the input signal edge trigger

threshold.When "Edge",That is input at the rising edge, falling edge triggered.

Table 2-3 Edge trigger function menu

Source

CH1

CH2

Set CH1 as trigger source.

Set CH2 as trigger source.

Slope

DOWN

Select the trigger signal to trigger on the rising edge

Select the trigger signal to trigger on the falling edge

Trigger mode

Auto

Normal

Single

Set in the absence of detectable also can collect waveform trigger

conditions Set only a

triggering condition is satisfied only waveform

Set capture a waveform when a trigger is detected, then stop

Operational

Status

Display

Choose to display or not display the waveform after the

operation status

Operati

Provide CH1 + CH2, CH1-CH2, CH2-CH1 three operations

mode

Instructions:

Set the source:

Press the "TRIG" button to display the trigger menu, according to the signal

input, press the "F2" key to select "CH1" or "CH2".

2.Press "CH1", then press" "or" "adjust channel 1 mark.Press the

"TRIG", then press" "" "or" "" "adjust the trigger flag

arrow,According trigger flag each cell voltage value represents the relative

position and the current channel a flag vertically to set the trigger level size.

Set slope:

Press the "F1" key to select slope "up" or "down."

Set trigger mode:

Press the "F3" key to select "Auto", "normal" or "single."

Auto :Set in the absence of detectable also can collect waveform trigger

conditions

Normal :Set only a triggering condition is satisfied only waveform Single :Set

capture a waveform when a trigger is detected, then stopAs Figure 2-12

Figure 2-12

2.8 Display System

Table2-4 Display system function menu

Function

Setting

Instruction

Display

Type

Vector

Samples display through connection;

Format

Y-T

Display Voltage(Vertical Line)-Time(Horizontal Line) Curve

Continue

Waves update in Real time;

Display

Lighting

BackLi

ght

Adjust from 1 to 5;

Color

Full color or Blacn&White

Language

Simplified Chinese and English

Display System Setup

1.BackLight:Press “MENU ”,find “Setup Display ”,press ”F1 ”to set

“Backlight(Bright)”;Adjust from 1 to 5;

2.Language:Press”MENU”,find”Setup Display”,press “F2 ”to set

“Language”;can be set to “中文” or “English”.

3.Color:Press “MENU”,find “Setup Display”,press “F3”;can be set to “1”

for “Black&White”,”2”for “Full color”.

2.9 Storage System

JHJDS2012S Series products can save two reference waveforms、six screenshots

at internal memories.

JHJDS2012S Series products support USB interface,using for exporting

screenshots(bmp picture) to u-disk.In addition,The saved two reference waves

can be shown in “MENU-Waveform Save”.

The way to export screenshots:shut down the device,connect to computer by a

usb cable,the press “OK”and “PWR”at the same time,after the screen is

worked,let go;Now,you will see a U-Disk on your computer.After you get your

pictures,please click Safely Remove USB Device on your computer first,then

disconnect the usb cable;you should unplug the battery and then plug it at last.

Waring:Please don’t use any measure function when the usb cable is connecting

with other devices,or this Instument Will Be Damaged.

2.10 Auxiliary Systems

Auxiliary function can be enabled by press “MENU”、“ F1”“F2”“F3”.

"MENU" button to pop up the system function settings menu. Table 2-5

Table 2-5

Setting

Instruction

Low

power

Sound

Open or Close

Auto Shut

Down

10min 、30min、or Never(means if no opearting within this

times,the system will shut down)

This manual suits for next models

Table of contents

Popular Test Equipment manuals by other brands

SMART

SMART KANAAD SBT XTREME 3G Series user manual

Agilent Technologies

Agilent Technologies BERT Serial Getting started

Agilent Technologies

Agilent Technologies N3280A user guide

Vernier

Vernier Go Direct Voltage manual

Lifeloc

Lifeloc R.A.D.A.R. quick start guide

Fluke

Fluke T5-600 Service information

Mercury

Mercury TSL01 user manual

MAHA

MAHA MBT Series Original operating instructions

Fuji Electric

Fuji Electric P-61 instruction manual

ETC

ETC SealerAtor user manual

Skyfine

Skyfine ETHYWAY V2 user manual

Appion

Appion G5 Twin Operation manual

PCB Piezotronics

PCB Piezotronics 8159-0112A Installation and operating manual

BW Technologies

BW Technologies MicroDock II user manual

Sun Nuclear

Sun Nuclear 1027 user guide

Biomark

Biomark HPR LITE READER user manual

Hioki

Hioki 3169-20 instruction manual

Ashcroft

Ashcroft ATE-100 operating manual