Sourcetronic ST2883 Series User manual

ST2883 Series Operation Manual
1
Operation Manual
MODEL ST2883S4-5/8-5
Impulse Winding Tester
S
S
S
o
o
o
u
u
u
r
r
r
c
c
c
e
e
e
t
t
t
r
r
r
o
o
o
n
n
n
i
i
i
c
c
c
G
G
G
m
m
m
b
b
b
H
H
H
Fahrenheitstraße 1
28359 Bremen
Germany
TEL：[phone]
FAX：[phone]
[email protected]
www.sourcetronic.com

ST2883 Series Operation Manual
2
Contents
Chapter 1 Overview ........................................................................................................................ 1-1
Production introduction .................................................................................................... 1-2
Operation environment ..................................................................................................... 1-3
Power supply. ......................................................................................................... 1-3
Environment temperature and humidity................................................................. 1-3
Warm-up ...................................................................................................................... 1-3
Dimensions and weight .................................................................................................... 1-3
Chapter 2 General specifications .................................................................................................... 2-1
Specifications ................................................................................................................... 2-1
Comparison methods ........................................................................................................ 2-2
Area size comparison ............................................................................................. 2-2
Differential area comparison .................................................................................. 2-2
Corona discharge comparison ................................................................................ 2-3
Differential phase comparison ............................................................................... 2-4
Chapter 3 Panels and display .......................................................................................................... 3-1
Front panel........................................................................................................................ 3-1
Rear panel ......................................................................................................................... 3-3
Introduction to display area .............................................................................................. 3-4
Chapter 4 Introduction to [DISP] .................................................................................................... 4-1
Measurement display page ............................................................................................... 4-1
Introduction to symbols in measurement display page ..................................................... 4-1
Introduction to soft keys in measurement display page .................................................... 4-1
Display ................................................................................................................... 4-2
Compare ................................................................................................................. 4-2
Measure .................................................................................................................. 4-3
Utility ..................................................................................................................... 4-4
Statistics ................................................................................................................. 4-4
Modify ................................................................................................................... 4-5
Chapter 5 Introduction to [SETUP] ................................................................................................ 5-1
Introduction to icons of soft keys ..................................................................................... 5-1
Measurement setup page .................................................................................................. 5-1
Step ........................................................................................................................ 5-2
Mode ...................................................................................................................... 5-2
5.2.3 CH1-CH8(ST2883S8-5), CH1-CH4(ST2883S4-5) Channel setup ........................ 5-3
Imp Volt .................................................................................................................................... 5-3

ST2883 Series Operation Manual
3
Samp- can be set in TEST mode ............................................................................ 5-3
Test Imp- can be set in TEST mode ....................................................................... 5-4
Erase Imp- can be set in TEST mode ..................................................................... 5-4
Volt ADJ- can be set in TEST mode ....................................................................... 5-4
Start Volt- can be set in BDV test mode ................................................................. 5-4
End Volt- can be set in BDV test mode ................................................................ 5-5
Volt Step- can be set in BDV test mode ............................................................... 5-5
Comparator .......................................................................................................... 5-5
Position (AREA SIZE, DIFF ZONE, PHASE DIFF) .......................................... 5-5
Position（PHASE DIFF） ............................................................................ 5-6
DIFF（Limit）（AREA SIZE, DIFF ZONE, PHASE DIFF） ........................... 5-6
DIFF（Limit）（CORONA） ............................................................................ 5-6
Match Setup ...................................................................................................................... 5-7
Step ........................................................................................................................ 5-7
Mode ...................................................................................................................... 5-8
Std.Name-available in Sample mode ..................................................................... 5-9
Step NO.-available in SW.Copy ................................................................................ 5-9
Int. File ........................................................................................................................... 5-10
Ext. File .......................................................................................................................... 5-11
Chapter 6 Introduction to [SYSTEM]. ............................................................................................ 6-1
System .............................................................................................................................. 6-1
Brightness .............................................................................................................. 6-2
Pass/Fail ................................................................................................................. 6-2
Pass Alarm ............................................................................................................. 6-2
Fail Alarm .............................................................................................................. 6-2
Key Sound. ............................................................................................................. 6-2
Hard Copy .............................................................................................................. 6-2
Password ................................................................................................................ 6-3
Language ................................................................................................................ 6-3
Theme .................................................................................................................... 6-3
Date ...................................................................................................................... 6-3
Time ........................................................................................................................... 6-4
Parameter .......................................................................................................................... 6-4
Wave Disp .............................................................................................................. 6-5
Trig Mode............................................................................................................... 6-5
Delay Time .................................................................................................................. 6-6
Interface ............................................................................................................................ 6-6
6.3.1 I/O .......................................................................................................................... 6-7
ST2883 RS232C interface ..................................................................................... 6-7

ST2883 Series Operation Manual
4
USB interface ......................................................................................................... 6-9
LAN interface ...................................................................................................... 6-11
About .............................................................................................................................. 6-13
Chapter 7 User guide ...................................................................................................................... 7-1
Use of keys ....................................................................................................................... 7-1
Use of the roller ..................................................................................................... 7-1
Switch the display page.......................................................................................... 7-1
Numeric arrow key ................................................................................................ 7-1
Basic measurement ........................................................................................................... 7-2
Non-standard test ................................................................................................... 7-2
Sample test for standard wave ............................................................................... 7-2
BDV test ........................................................................................................................... 7-2
Technology application .................................................................................................... 7-3
Test objects. ............................................................................................................ 7-3
Select comparison method ..................................................................................... 7-3
Settings of comparison method .............................................................................. 7-4
Select standards ...................................................................................................... 7-4
Chart for differential area ....................................................................................... 7-4
Chapter 8 Command reference ....................................................................................................... 8-1
Command structure .......................................................................................................... 8-1
Data format ....................................................................................................................... 8-3
Notation conventions and definitions ............................................................................... 8-3
Command reference ......................................................................................................... 8-4
DISPlay subsystem commands .............................................................................. 8-4
Measure Function subsystem commands ............................................................... 8-7
COMParator subsystem commands ....................................................................... 8-8
Impulse VOLTage subsystem commands ............................................................ 8-13
Sample RATE subsystem commands ................................................................... 8-15
Standard WAVE subsystem commands. ............................................................... 8-17
Wave Adjust subsystem commands ..................................................................... 8-18
STATistic subsystem commands .......................................................................... 8-19
TRIGger subsystem commands ........................................................................... 8-20
FETCh？subsystem commands ......................................................................... 8-21
MEASure subsystem commands ........................................................................ 8-23
ABORt subsystem command ............................................................................. 8-24
Mass MEMory subsystem commands ............................................................... 8-24
Local Control subsystem commands ................................................................. 8-25
Common commands .......................................................................................... 8-25

ST2883 Series Operation Manual
5
Error and warning message ............................................................................................ 8-26
Chapter 9 Handler interface ............................................................................................................ 9-2
Basic information ............................................................................................................. 9-2
Electrical characteristics ................................................................................................... 9-3
DC isolated output ................................................................................................. 9-3
Isolated input .......................................................................................................... 9-4
Jumper setup on HANDLER interface ............................................................................. 9-5
Chapter 10 Package contents and warranty .................................................................................. 10-1
Package contents ............................................................................................................ 10-1
Warranty ............................................................................................................................. 10-1

ST2883 Series Operation Manual
1-1
Chapter 1 Overview
Thank you for your use of our products. Before the use of it, please locate the items listed in this
manual to ensure nothing is missing. If in the case that any item is missing, please contact us
immediately.
It is necessary to read this manual carefully before your proper use of ST2883 series impulse
winding tester.
Warning!
1) Operation
Do not put heavy objects on the tester.
There is a cooling fan on the rear side of this instrument, so any block of the air inlet is
prohibited.
2) Rigid power input
The stability of high voltage depends on stable power input. Be sure to provide rated AC
power or corrected power.
3) Grounding
For the safety of personnel and instrument, ensure the grounding terminal, designed in
power cord, be grounded correctly.
4) Test cable
To avoid electrical shock hazard, do not touch test terminals and test samples. The reason
is that a high voltage test cable is connected to the rear panel of this instrument, thus when
testing, the cable and test samples connected will carry a high voltage.
5) DO NOT open case unauthorized!
To avoid the injury to personnel and damage to the instrument, do not open the case
unauthorized due to the existence of high voltage in instrument.
6) Carry or move
Before moving the instrument, unplug the AC power sockets and remove high voltage test
line or external control line.
7) Maintenance
In non-use state, the instrument should be covered with a plastic or cloth cover. To clean
the tester, wipe the dirty parts with a soft cloth socked with diluted neutral detergent. Do
not use the following chemicals to clean the instrument: diluent, benzene or organic
solvent with similar chemical property with above materials.
8) Location
Do not locate the instrument in the environment of high temperature, direct sunlight or

ST2883 Series Operation Manual
1-2
poor ventilation. In addition, the instrument will generate high voltage, so it must be used
at room temperature and in the absence of much dust.
Production introduction
Due to the influence of wire material, magnetic material, framework and manufacture technics,
winding products such as transformers, motor windings may have defects of low insulation
between winding layers, circles and leads. ST2883 series impulse winding tester, adopting high-
speed sampling techniques, is a new test instrument for insulation performance of winding
products.
ST2883 series compares the standard waveform stored in the non-volatile memory with the
current tested waveform. TH883 series provides the PASS or FAIL comparison result according
to AREA SIZE, DIFFERENTIAL AREA, CORONA DISCHARGE or DIFFERENTIAL PHASE.
With its strong functions, accurate comparison methods, easy operation and various interfaces,
ST2883 can provide a perfect test solution for most winding products.
Principles of impulse winding test
The impulse winding tester tests the electrical characteristics of coil winding without damaging the
DUT. The prerequisite condition is to test the quality of a coil at just a glance. The detection is
carried out when the same electric impulse, as used in the standard coil and here discharged by a
capacitor, is applied to the DUT. The voltage attenuation wave is generated in response to the
impulse, related to the Q-factor and inductance of the coil. In this sense, the tester can detect turn
and layer short, the differences in the number of turns and the material of the core. If high impulse
voltage is applied, the poor insulation will appear as a corona or layer discharge.
SW DUT
Vdc C1 C2 Rx
Lx
Vo(t)
Figure 1-1 Simplified diagram for principles of impulse winding test
In figure 1-2, the self-oscillation attenuation wave has a close relation with the inductance L and
quality factor Q, while L and Q depend on the number of turn, manufacture technology,
properties of iron core material and whether it has air-coils. What’s more, the applied voltage is a
high impulse voltage, thus, it is easy to observe the short circuit, partial short turns and lays or
turns discharge phenomenon caused by insulation damage.

ST2883 Series Operation Manual
1-3
Figure 1-2 Typical self-attenuation oscillation wave
Operation environment
Power supply
Voltage: 198V-242V AC, 99V-121V AC
Power frequency: 47.5Hz-63Hz
Consumption: ≤40VA
Environment temperature and humidity
Normal working temperature: 0°C~40°C, Humidity: ≤ 90%RH
Referential working temperature: 20°C ±8°C, Humidity: ≤ 80%RH
Transferring environment temperature: 0°C ~50°Cm, Humidity: ≤ 93%RH
Warm-up
The warm-up time should not be less than 15 minutes.
1.3 Dimensions and weight
Dimensions (W*H*D): 400mm×132mm×390mm
Weight: Approx. 7.2kg

ST2883 Series Operation Manual Chapter 2 General specifications
2-1
Chapter 2 General specifications
Specifications
Specifications ST2883-1 ST2883-5 ST2883-10 ST2883S8-5 ST2883S4-5
Impulse voltage 30V-1200V
5V steps
±5%±5V
100V~5000
V
10V steps
5%±15V
500V-10kV
20V steps
±5%±25V
100V-5000V
10V steps
±5%±15V
100V-5000V
10V steps
±5%±15V
Number of channels 1 1 1 8 4
Inductance test range ≥1uH ≥10uH ≥20uH ≥10uH ≥10uH
Impulse energy Max 0.02J Max 0.25 J Max 0.5J Max 0.25J Max 0.25J
Test speed 6 times/sec 6 times/sec 3 times/sec
(voltage
output =
10kV)
6 times/sec
(single
channel)
6 times/sec
(single
channel)
Pulses applied Max. 32
Input impedance 5MΩ
Display 800×480 dot-matrix LCD, 65k color TFT;
Waveform display dots: 600x256
Waveform
acquisition
8 adjustable sampling rate: Max.200Msps
Resolution：8 Bits
Memory depth：6k Bytes
Average：1-32
Comparison method Compared with standard waveform:
AreaSize Comparison
DiffZone Comparison
Corona Comparison
PhaseDiff Comparison
Waveform
measurement
Voltage, time and frequency
Trigger mode Manual (Foot), External, Bus, Internal,
Detection output OK/Ng display, LEDdisplay, Beeper alarm
Measurement
statistics
Statistics for measurement results
Memory Built-in memory: 20 standars waveforms and settings

ST2883 Series Operation Manual Chapter 2 General specifications
2-2
USB disk : external memory
Interface Handler,RS232C,USB Device,USB Host,Lan
Power
Power supply 110V/220V ±10% 50Hz/60Hz ±5%
Power consumption ≤200VA
General specifications
Working
environment
Temperature 0°C - 40°C
Humidity ≤75% R.H.
Safty and electromagnetic
compatibility
IEC61010-1：2001，IEC61326-2-1：2005
Comparison methods
Area size comparison
As shown in figure 2-1, when comparison method is set to AREA SIZE, the area sizes of both
standard waveform and the tested waveform are calculated (integration method) between A and
B. The percent deviation is the ratio of the area size difference to the area size of the standard
waveform between A and B, expressed as a percentage.
Figure 2-1 Area Size Comparison
The area size of the waveform is nearly proportional to the energy loss in the winding. When a
sample winding has a short circuit between layers, the short circuit area is reflected as an
increase of energy loss.
Differential area comparison
When comparison method is set to Differential Area, ST2883 calculates the area size of
differential portion between the standard waveform and the tested waveform from A to B. (The
differential portion area size is indicated as the shaded part in Figure 2-2.) The percent deviation

ST2883 Series Operation Manual Chapter 2 General specifications
2-3
is the ratio of the differential portion area size to the area size of the standard waveform between
A and B, expressed as a percentage.
Figure 2-2 Differential Area Comparison
The differential area size reflects the value of inductance and total energy loss. This method is
especially effective to detect the differences of inductance L between the standard winding and
the tested winding.
Corona discharge comparison
When comparison method is set to Corona Discharge, ST2883 detects the high frequency energy
of corona discharge from A to B as shown in Figure 2-3. When the corona evaluation value is
less than the corona difference limit, then the comparison result will be PASS. When the corona
evaluation value is more than the corona difference limit, then the comparison result will be
FAIL. The corona evaluation value and difference limit are both expressed as an integer.
Figure 2-3 Corona Discharge Comparison
User can sample some coil samples (e.g. 10 samples) to set an effective corona discharge value.
First, applying an impulse voltage to each coil will gain the corona discharge value of each coil.

ST2883 Series Operation Manual Chapter 2 General specifications
2-4
Then, a new effective value can be set by adding 20% to the maximum corona discharge value.
In order to ensure the correctness of the new value, user can test these coils once more and
observe the corona PASS or FAIL.
Differential phase comparison
User can specify a zero-crossing point to compare. The instrument will judge the zero-crossing
offset between the tested waveform and standard waveform and then compare the oscillation
period between the two waveforms. The percentage of the two values will be taken as the
judging criterion and the reference is set by percentage. As is shown in figure 2-4, A~B is the
offset and C~D is the oscillation period of standard waveform. The third zero-crossing point of
the compared waveform is to set.
Figure 2-4 Phase Differential Comparison
 NOTE: The tester can only set zero-crossing points from 2 to 10. The first zero-crossing point
cannot reflect the actual performance of coils, so it is not necessary to set the first point. In real
phase differential comparison, there are four results generated: PASS, FAIL, FAIL1 and FAIL2.
PASS is up to standard; FAIL, below standard. While FAIL1 means the zero-crossing point has
not been found, that is to say, it is unable to find the set zero-crossing point on the waveform of
the tested coil; FAIL2 indicates that a complete period cannot be found on the standard
waveform. As shown in figure2-4, the third zero-crossing point must be present in the waveform
so as to ensure the normal operation of phase differential comparison.

ST2883 Series Operation Manual Chapter 3 Panels and display
3-1
Chapter 3 Panels and display
Front panel
USB
ST2883S8-5
Impulse Winding Tester
MENU
DISP SETUP SYSTEM
ENTRY
7 8 9
PQRS TUV WXYZ
ESC
4 5
6
PASS
GH I JKL MNO
1 2
3
ABC DEF
FAIL
0 +/-
ENTER
START
POWER
COPY
Serial Number Name Instruction
1 Brand and model
2 LCD 320×240 Large-Scale dot-matrix LCD displays
measurement waveform, set parameters, system
configurations, etc.
3 SOFTKEY The five keys’ functions are not fixed and have
different functions in different menus. Five soft
keys are used to select control and parameter
functions. Current function of each soft key is
displayed along its left side.
4 [DISP] Press
DISP
menu key to enter the <MEAS DISP>
page.
5 [SETUP] Press
SETUP
menu key to enter the <MEAS
SETUP> page.
6 Roller Control the movement of the cursor, confirm and
modify data
7 [SYSTEM] Press
SYSTEM
menu key to enter the <SYSTEM
SETUP> page.
8 NUMBER keys Input numbers or characters
9 ESC
ESC
key is used to cancel the enter of numbers or

ST2883 Series Operation Manual Chapter 3 Panels and display
3-2
characters.
10 BACKSPACE The function of
BACKSPACE
key is to delete
numbers or characters wrongly entered.
11 ENTER ENTER key terminates numeric input data and
enters the displayed value on the data input line
(bottom line of the LCD screen).
12 HV High Voltage Indicator indicates that the
instrument is outputting dangerous impulse test
voltage to the HV terminal on the rear panel. Do
not touch test terminals or DUT.
13 PASS/FAIL indicator When
PASS
indicator flashes, the comparison
result is up to standard; while FAIL, below
indicator. Valid only in comparison function.
14 START Press the
START
key to start a measurement. In
the process of test, pressing the key will terminate
the measurement.
15 High voltage terminal Output high voltage. Although all 8 channels
(ST2883S4-5 is equipped with 4 channels) are not
equipped with it, this high voltage terminal has
high voltage output when pressing START.
16 Ground terminal Low terminal for high voltage test, connecting to a
test fixture and DUT with 15.
17 COPY Capture the screen information
18 POWER Switch on or off the main power
19 USB Host interface An USB disk can be connected for standard
waveforms and measurement conditions storage.
Table 3-1 Front panel instruction

ST2883 Series Operation Manual Chapter 3 Panels and display
3-3
FOOT.C
H
ANDLER
DEVICE
RS
-
232C
LAN
GND
！ WARNING
THIS INST RUMENT CONT AINS NO OPERATOR SERVICEABLE PARTS INSIDE;
REFER SERVICING T O SERVICE TRAINED PERSONNEL ONLY.
DISCONNECT INPUT POW ER BEFORE REPLACING FUSE FOR CONTINUED FIRE
PROTECTION,USE MANUAL SPECIFIED TYPE RATING FUSE ONLY.
！ PLEASE READ MANUAL FOR SAFETY
RATING FUSE
110V
/
60Hz
T2AL
220V
/
50Hz T1AL
HV
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
Rear panel
Serial number Name Instruction
1 HANDLER interface Comparison results are output via the handler
interface. You can also start or stop a test through
the interface.
2 USB DEVICE interface A PC can remotely control ST2883 through the
USB DEVICE interface.
3 RS232C serial interface RS232C serial interface can be connected to an
external device for remote control and operation
4 LAN interface Be used to connect network cable.
5 FOOT CONTROL A footswitch can be used to start a measurement
instead of pressing the START key from the front
panel.
6 Name plate Show manufacture date, model, batch number,
manufacturer, etc.
7 Fan window Discharge heat.
8 Ground terminal Ground the instrument shell.
9 Fuse Fuse is used to protect the instrument .220V/1A
10 3-wire power socket Connect the power.
11 Scanning Test Terminal ST2883S8-5 has 8 scanning test terminals, from
CH1 to CH8
ST2883S4-5 has 4 scanning test terminals, from
CH1 to CH4
12 Test terminal High voltage output terminal, the function is the
same as that of the high voltage terminal 15 on the
~
~

ST2883 Series Operation Manual
13
Test terminal
Introduction to display
Specific definition for each area:
1 Voltage
Show the voltage of waveform
2 Test status
RUN means in the test process, STOP means the test has been terminated.
3 Waveform display area
In this area, test and standard waveforms, peaks of impulse voltage and
are displayed.
4
Indicate the waveform location in the
5
Indicate whether a standard waveform exists. N means a standard waveform exists while H
does not.
6
Show the memory depth and indicate the current display color of the test wavef
can use the roller to change the
7 Test step
ST2883 Series Operation Manual
Chapter 3
Panels and display
3-4
front panel.
Test terminal
It is the GND terminal connected to the DUT with
11 and 16 on the front panel.
Table 3-2 Rear Panel Instruction
Introduction to display
area
Specific definition for each area:
Show the voltage of waveform
RUN means in the test process, STOP means the test has been terminated.
In this area, test and standard waveforms, peaks of impulse voltage and
comparison results
Indicate the waveform location in the
memory.
Indicate whether a standard waveform exists. N means a standard waveform exists while H
Show the memory depth and indicate the current display color of the test wavef
can use the roller to change the
color.
Panels and display
It is the GND terminal connected to the DUT with
comparison results
Indicate whether a standard waveform exists. N means a standard waveform exists while H
Show the memory depth and indicate the current display color of the test wavef
orm. User

ST2883 Series Operation Manual Chapter 3 Panels and display
3-5
Display format: XX/XX. The first two digits display the step number of the current
waveform display and comparison and the latter two digits display the total numbers of
steps. The maximum steps can be set is 20.
8 Measurement result
Show the final measurement result.
9 Comparison result
Four comparison results and their final display results.
10 Main menu for soft key
11 Function zones of soft keys
Show the corresponding function and parameter of each soft key.
12 Information
Show the state of interface selecting, availability of U disk, key lock, etc.
13 Time base
This area shows the time between the two dash lines of this waveform display area in X
direction. The time shown in this area cannot be modified by user but varies with the
sampling rate and time base zoom.
14 Peak value
Show the peak value of the current test voltage.
15 Comparison results for several steps
This area displays the comparison results for several steps. The number displays the set step
number. When the display is set as SINGLE DISPLAY, this area displays the corona of the
selected step.
16 Sampling rate
Show the sampling rate of the current waveform, which can be altered by the [Modify] soft
key and the roller.
17 Impulse voltage
Show the current set impulse voltage.
18 Final measurement result
Show the final measurement result. When the measurement results of all steps are PASS, the
final measurement result displays PASS, or else displays FAIL. When the display is set as
SINGLE DISPLAY, there is no display in this area.
19 Time
Display the real time.

ST2883 Series Operation Manual
Chapter 4
Introduction to
Press the DISP menu key to enter the < MEAS DISP> page (the default page). In this page,
measurements are taken and the test waveform
standard sampling (Standard), comparison setting (Compare), measurement function (Measure),
auxiliary function (Utility), statistic function (Statistics), display color of the waveform, test step,
sampling rate, etc. Figure 4-
1 shows the measurement display page.
Measurement display
Figure 4
Introduction to symbols in measurement display


Enter the next


Return to the upper

Lighten this symbol to enable
roller can be rotated and has the function of
Introduction to soft keys in measurement display

Display Enter the
Display setup
selected.
ST2883 Series Operation Manual
Chapter 4 Introduction to [DISP]
4-1
Introduction to
[DISP]
Press the DISP menu key to enter the < MEAS DISP> page (the default page). In this page,
measurements are taken and the test waveform
is displayed. Some function settings such as
standard sampling (Standard), comparison setting (Compare), measurement function (Measure),
auxiliary function (Utility), statistic function (Statistics), display color of the waveform, test step,
1 shows the measurement display page.
Measurement display
page
Figure 4
-1 Measurement display page
Introduction to symbols in measurement display
page
Enter the next
menu.
Return to the upper
menu.
Lighten this symbol to enable
the roller, while darken this symbol to disable the roller. The
roller can be rotated and has the function of
key.
Introduction to soft keys in measurement display
page
Display setup
sub-
menu. Under this menu, multi and single display can
Chapter 4 Introduction to [DISP]
Press the DISP menu key to enter the < MEAS DISP> page (the default page). In this page,
is displayed. Some function settings such as
standard sampling (Standard), comparison setting (Compare), measurement function (Measure),
auxiliary function (Utility), statistic function (Statistics), display color of the waveform, test step,
page
the roller, while darken this symbol to disable the roller. The
page
menu. Under this menu, multi and single display can
be

ST2883 Series Operation Manual Chapter 4 Introduction to [DISP]
4-2

Compare Enter the Compare setup submenu. Under this menu, states of the four compare
methods, compare parameters can be set.

Measure Enter the Compare function submenu. Under this menu, wave voltage, wave time,
wave frequency can be set.

Utility Enter the Utility function submenu. Under this menu, internal file, wave amplitude,
grid in the waveform display zone, corona display zone, and the state of the key lock can be
set.

Statistics Enter the Statistics function submenu. Under this menu, statistics for the current test
result can be set. User can select to open, clear or save data.

Modify Press the corresponding soft key and revolve the roller to modify the impulse
voltage, sampling rate, etc.
Display
The instrument provides two display mode: multi and single.
Multi
 If Multi is selected, all the test results of the inserted test steps will be
displayed on the screen below. When all the results of the test steps are
OK, the final result is PASS. Once one of the test step fails, the final
result is FAIL.
Single
 If Single is selected, the current test result of the selected test step will
be displayed on the screen below, including the comparison result,
corona and peak voltage.
Compare
ST2883 series provides four kinds of compare methods as follows: Area Size Comparison,
Differential Area Comparison, Corona Discharge Comparison and Phase Differential
Comparison. The instrument collects the waveform data of 6000 points, thus user can select
the comparison area between the start position and 6000.
Press the Compare soft key to enter the main menu of it. Four compare methods can be set
under this menu.
Note: Press the
Position
0000-6000 soft key to enable the roller. When the roller is revolved,
two parallel yellow lines (except Differential Phase comparison) will be displayed in
the waveform display zone. The full line is the selected one, while the dash line is not
the selected one.
AREA SIZE
Method
AREA Select the area comparison method.


ST2883 Series Operation Manual Chapter 4 Introduction to [DISP]
4-3
Method
Corona
Time
Diff
2.0%
10.00μ

State  means this method is turned on, while  means off.

Position
0000-6000 Lighten this icon to enable the roller. The start point, the end point
or both the start and the end points will be selected by the press of
the roller. Revolve the roller will change the position of the start
point, the end point or both the start and the end points by 10
points. The position ranges from 0 to 6000.

Lighten the icon to enable the roller and change the differential
value.

 Return to previous page.
DIFF ZONE
Method
DIFF ZONE
CORONA
Select the differential area size comparison method. All setup
operations are the same as those of AREA SIZE.
Select the corona comparison method. All setup operations are the
same as those of AREA SIZE. The corona comparison value has no
unit ranging from 1 to 255.
PHASE DIFF
Method
PHASE DIFF Select the phase differential comparison method. All setup
operations are the same as those of AREA SIZE. But the position
parameter is different, it means to choose the zero-crossing
position and the value ranges from 2 to 99.
 Return to the main menu.
Measure
Measurement function is used to measure impulse voltage, time and frequency.
Note: When a function is selected and the roller is enabled, two lines will be displayed
in the waveform display zone. The differential value of the two lines corresponds to the
value showing on the second soft key.
Voltage
1000V Press the roller to switch between the high limit, the low limit and the
high and low limits. Then revolve the roller to change the position of
the high and the low limits. The voltage differential value between the
high and the low limits (ΔV) is as shown on the second soft key.
 Note: The default low limit locates on the center line.

The high limit, the low limit or the high and the low limits can be
Method
Corona
