Scientific SME1402 User manual

SME1402
DC Resistance Meter
User Manual

Scientific
SME1402 2/70
Copyright © Scientific All rights reserved.
This instrument contains proprietary information, no part of this manual may be photocopied,
reproduced or translated without any prior written consent.
Information in this manual supercede all corresponding previous released material.
Scientific continues to improve products and reserves rights to amend part or all of the
specifications,
procedures, equipment at any time without notice.
ev 1.0/ 0120
Scientific Mes-Technik Pvt. Ltd.,
B-14 Industrial Estate, Pologround,
Indore- 452015 (India)
Tel : [phone]/33
Fax : [phone]
Email : [e-mail]
Website: www.scientificindia.com

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Contents
1) Introduction to Instrument, Unpacking and Installing ..................................................................... 6
1.1 Introduction to Instrument .................................................................................................... 6
1.2 Unpacking .............................................................................................................................. 6
1.3 Power Connection .................................................................................................................. 6
1.4 Fuse ........................................................................................................................................ 6
1. Environment .......................................................................................................................... 7
1.6 Use of Test Fixture ................................................................................................................. 7
1.7 Warm-up ................................................................................................................................ 7
1.8 Other Features ....................................................................................................................... 7
2) Introduction to Front and Rear Panels ............................................................................................. 8
2.1 Introduction to Front Panel.................................................................................................... 8
2.2 Introduction to Rear Panel ..................................................................................................... 9
2.3 Display Zone ......................................................................................................................... 10
2.4 Introduction to Buttons on Front Panel ............................................................................... 11
2.4.1 [MEAS] ....................................................................................................................... 11
2.4.2 [SYSTEM] .................................................................................................................... 11
2. Simple Operation ................................................................................................................. 12
2.6 Starting Up ........................................................................................................................... 12
3) Basic Operation .............................................................................................................................. 13
3.1 <MEAS DISP> ........................................................................................................................ 13
3.1.1 Measurement Functions ............................................................................................ 13
3.1.2 Measurement Range ................................................................................................. 14
3.1.3 Measurement Speed ................................................................................................. 14
3.1.4 File Manage ............................................................................................................... 1
3.1. Tools ........................................................................................................................... 1
3.2 <COMP DISP> ....................................................................................................................... 16
3.2.1 File Manage ............................................................................................................... 16
3.2.2 Tools ........................................................................................................................... 16
3.2.3 COMP (ON/OFF) ........................................................................................................ 17
3.2.4 Compare Mode and SETTINGS of ABS & Percent Error ............................................. 17
3.3 <BIN DISP> ........................................................................................................................... 17
3.4 STATIS DISP ........................................................................................................................... 19
3.4.1 Edge Mode and Settings of Its Relevant Values ......................................................... 19
3.4.2 Status ON/OFF ........................................................................................................... 19
3.4.3 Parameters of Statistic Analysis ................................................................................. 19
3.4.4 TOOLS ........................................................................................................................ 20
3.4. FILE............................................................................................................................. 20

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3. <MEAS SETUP> ..................................................................................................................... 21
3.6 <TC/∆t SETUP> (SME1402) .................................................................................................. 22
3.6.1 Temperature Correction (TC) ..................................................................................... 22
3.6.2 Temperature conversion (∆t) ...................................................................................... 23
3.6.3 Types of Temperature Sensor .................................................................................... 2
3.6.4 Parameter Setting ...................................................................................................... 2
3.6. File ............................................................................................................................. 26
3.7 <BIN SETUP> ........................................................................................................................ 26
4) System Setup and File Manage ...................................................................................................... 27
4.1 System Setup........................................................................................................................ 27
4.1.1 Tools ........................................................................................................................... 27
4.1.2 TouchTone .................................................................................................................. 28
4.1.3 Language .................................................................................................................... 28
4.1.4 Password .................................................................................................................... 28
4.1. Bus Mode ................................................................................................................... 29
4.1.6 Baud Rate................................................................................................................... 29
4.1.7 AC Freq ...................................................................................................................... 29
4.1.8 Handler VCC ............................................................................................................... 29
4.1.9 LCD Style .................................................................................................................... 29
4.1.10 Setting Time and Date ............................................................................................... 30
4.2 <File Manage> ...................................................................................................................... 30
4.2.1 Introduction to Save/Recall ....................................................................................... 30
4.2.2 Structure of File Folder/File in a U Disk ..................................................................... 31
) Performance Index ......................................................................................................................... 34
.1 Measurement Function ....................................................................................................... 34
.1.1 Measurement Parameters and Notations ................................................................. 34
.1.2 Measurement Groups ................................................................................................ 34
.1.3 Range ......................................................................................................................... 34
.1.4 Trigger ........................................................................................................................ 34
.1. Mode of Test Terminal ............................................................................................... 34
.1.6 Resistance Measurement Time ................................................................................. 34
.1.7 Average ...................................................................................................................... 3
.2 Test Signal ............................................................................................................................ 3
.2.1 Current range ............................................................................................................. 3
.2.2 Output Voltage of Open Circuit ................................................................................. 3
.2.3 Maximum Display Range ........................................................................................... 3
.3 Measurement Accuracy ....................................................................................................... 3
.3.1 Basic Accuracy for Resistance Measurement ............................................................ 36

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.3.2 Accuracy for Resistance Tested at Low Current Mode ............................................... 36
.3.3 Accuracy for Temperature Measurement (Pt 00) ..................................................... 36
.3.4 Accuracy for Temperature Measurement (Analog Input) .......................................... 37
.3. Temperature correction factor .................................................................................. 37
6) Remote Control .............................................................................................................................. 38
6.1 RS232C Connection .............................................................................................................. 38
6.2 USBTMC Remote Control System......................................................................................... 39
6.2.1 System Configuration ................................................................................................. 39
6.2.2 Install the Driver ........................................................................................................ 39
6.3 USBVCOM Virtual Serial Port ............................................................................................... 40
6.3.1 System Configuration ................................................................................................. 40
6.3.2 Installing Driver .......................................................................................................... 40
7) SCIP Command Reference .............................................................................................................. 41
7.1 SME1402 Subsystem Commands ......................................................................................... 41
7.1.1 DISPlay Subsystem Commands .................................................................................. 41
7.1.2 FUNCtion Subsystem Commands .............................................................................. 43
7.1.3 APERture Subsystem Commands ............................................................................... 46
7.1.4 TRIGger Subsystem Commands ................................................................................. 47
7.1. FETCH? Subsystem Commands .................................................................................. 48
7.1.6 TEMPerature Subsystem Commands (SME1402) ...................................................... 49
7.1.7 COMParator Subsystem Commands .......................................................................... 2
7.1.8 BIN Subsystem Commands ........................................................................................ 6
7.1.9 STATistics Subsystem Commands............................................................................... 60
7.1.10 SYSTem Subsystem Commands .................................................................................. 6
8) Handler Interface ........................................................................................................................... 68
9) Warranty ........................................................................................................................................ 70
9.1 Maintenance ........................................................................................................................ 70
9.2 Dispatch Procedure for service ............................................................................................ 70

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1Introduction to Instrument, Unpac ing and Installing
Thank you for your purchase and use of our products! This chapter will introduce the basic instrument
performance, which is followed by notes of unpacking and installing.
1.1 Introduction to Instrument
SME1402 adopts 32 bits CPU and high density SMD technology. 24 bits, 4.3-inch and touch LCD screen
brings ease for your eyes and convenience to your operation. The maximum 0.0 % accuracy and
minimum 1 µΩ resolution shore up its leading role in testing relay contact resistance, interconnecting
resistance, conductor resistance, PCB resistance and welding-hole resistance. Temperature
compensation and conversion functions make your tests be free from the effect of the environment
temperature. The offset voltage compensation has effectively eliminated the electromotive force of
the DUT and its contact potential difference. For the contact influence of the thermoelectricity on
DUT, its elimination is achieved; especially when the resistance changes with the temperature greatly,
better test results will be achieved. With statistical analysis function, the instrument can make statistic
analysis for a large number of test data.
SME1402 series is a powerful test tool for all kinds of resistor design, detection, quality control and
production. Automation on production lines can be greatly improved by the realization of ultra-high
test speed and the signal output of 3 compare results through HANDLER interface. With multiple
output data display, comparison mode and bin comparator, SME1402 series can meet different test
requirements of different resistor manufacturers. The prominent performance makes the test results
come up to IEC and IML standard.
1.2 Unpac ing
Inspect the shipping container for damage after unpacking it. It is not recommended to power on the
instrument in the case of a damage container.
If the contents in the container do not conform to the packing list, notify us or your dealer.
1.3 Power Connection
1) Power supply: 90V-12 V, 190V-2 0V
2) Power supply frequencies: 0Hz and 60Hz
3) Power supply power range: ≤30VA
4) L (line wire), N (neutral wire) and E (earth ground wire) of the power supply input socket should
correspond to the power plug of the instrument.
) The instrument has been specially designed for decreasing noise jamming caused by the input in
AC power terminal, but it is also recommended to use it in the environment of low noise. If noises
cannot be avoided, install a power source filter please.
WARNING: To avoid injury to personnel and damage to the instrument resulting from electric
shoc , do sure that the earth ground wire is safely grounded.
There is selector switch between 110V and 220V voltage besides the power interface on the rear
panel. Please switch correctly.
1.4 Fuse
The fuse is a standard configuration, so use the included custom fuse please.

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1.5 Environment
1) Do not store or use the instrument where it could be exposed to many dusts, great vibration, direct
sunshine and corrosive gas.
2) Working condition:
3) Temperature: 0℃ to 40℃ Relative humidity: ≤ 80% No condensation
4) Storage condition:
) Temperature: -10℃ to 0℃ Relative humidity: ≤ 90% No condensation
6) For high accuracy, do not block the left air vent so as to ensure good ventilation.
7) The instrument has been specially designed for decreasing noise jamming caused by the AC power
input, but it is also recommended to use it in the environment of low noise. If noise cannot be
avoided, install a power filter please.
8) Test leads on the instrument that are connected to DUTs should be kept away from strong
electromagnetic fields to avoid interference.
1.6 Use of Test Fixture
Only use the test fixture or cable made by our company, because the use of other test fixtures or
cables may result in incorrect measurement results. In addition, for good contact of DUT and fixture,
keep the test fixture or cable and pins of DUT clean.
Connect the test fixture or cable to HI and LO terminals on the instrument front panel. Ensure the
color and arrow conformity of the test fixture with that of sockets on panels, thus to avoid abnormal
measurement.
1.7 Warm-up
1) For accurate measurement, the warm-up time should not be less than 30 minutes.
2) Do not turn on or off the instrument frequently. This may cause internal data confusion.
1.8 Other Features
1) Consumption: ≤30VA
2) Dimensions (W*H*D): 23 mm*10 mm*360mm; this dimension is the final packaging size.
3) Weight: Approx. 3.6kg

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2Introduction to Front and Rear Panels
This chapter will describe the basic operation of SME1402. Before using the instrument, please read
this chapter carefully.
2.1 Introduction to Front Panel
Figure 2-1 shows the front panel of SME1402.
Figure 2-1 Front Panel
1) USB interface
HOST interface of USB
2) LCD and touch screen
480*272 dot-matrix, 24-bit, 4.3-inch TFT and touch LCD is used for measurement setup and result
display.
3) [MEAS]
Press [MEAS] to enter into the MEAS DISP page.
4) [FILE]
Press [FILE] to enter into the page of internal and external File Manage.
5) [SYSTEM]
Press [SYSTEM] to enter into the SYSTEM SETUP page.
6) [0 ADJ]
Press [0 ADJ] to execute correction function.
7) Test terminals (INPUT)
4-terminal test terminal is used to measure DUT by a 4-terminal test cable.
The color and arrow of the test cable should correspond to that of socket on panel, thus to avoid
abnormal measurement.

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8) [TRIGGER]
When the trigger mode is set as MANU (manual), pressing this key can trigger the instrument
manually.
9) [ENTER]
Press this key to terminate and store input data.
10) Universal Arrow Keys
There are four arrow keys: up, down, left and right arrow keys.
11) Trademar and Model
Show instrument trademark and model.
12) POWER
It is the power switch.
2.2 Introduction to Rear Panel
Figure 2-2 shows the rear panel of SME1402.
Figure 2-2 Rear Panel
1) RS232C Serial Interface
It realizes serial communication of the instrument with PC.
2) TEMP.INPUT
There are two kinds of temperature signal input: Pt 00 and Analog Input.
3) Fuse soc et and Power Soc et
Fuse will be placed in this socket to protect the instrument; be used to input AC power.
4) Nameplate
It shows the instrument model.
5) Ground Terminal
This terminal connects the instrument chassis thus to protect or shield ground connection.
1 2 3
456
DEVICE HANDLER
RS-232C TEMP.INPUT RATING FUSE
~T2AL110V/60Hz
~220V/50Hz T1AL
RS-232C
S/N:
R6-513-00003
7

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6) HANDLER Interface
Through HANDLER interface, an automatic test system can be conveniently constructed to realize
auto test. SME1402 series will output bin comparator result signals and handshake signals by this
interface, meanwhile, external trigger signal will also be sent to the instrument by it.
7) USB Interface
PC can remotely control SME1402 series through USB DEVICE.
2.3 Display Zone
SME1402 series adopts 24-bit 4.3-inch LCD touch screen with a resolution of 480*272. The display
screen is divided into the following zones, as shown in figure 2-3.
Figure 2-3 Display zone
1) Page name
This zone shows the current page name.
2) FILE
In this zone, file manage can be executed such as File Manage, Screen Copy.
3) TOOLS
This zone can set some short-cut functions.
4) Soft eys
This zone displays the function menu corresponding to the cursor-located zone.
5) Result display
This zone displays the measurement result such as resistance and temperature.
6) Prompt information
This zone displays all prompt information.
7) Function zone
This zone is used to change the measurement mode and measurement parameters.

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2.4 Introduction to Buttons on Front Panel
2.4.1 [MEAS]
Press <MEAS> to enter into display homepage. Selectable functions in this page are shown as
follows:
<MEAS DISP>
<COMP DISP>
<BIN DISP>
<STATIS DISP>
< >
<MORE 1/2>
<MEAS SETUP>
<TC/∆t SETUP> (SME1402)
<BIN SETUP>
<SYSTEM SETUP>
< >
<MORE 2/2>
2.4.2 [SYSTEM]
Press the [SYSTEM] button to enter into the <SYSTEM SETUP> page; the following soft keys
will be displayed:
<MEAS DISP>
<COMP DISP>
<BIN DISP>
<STATIS DISP>
< >
<MORE 1/2 >
<MEAS SETUP>
<TC/∆t SETUP> (SME1402)
<BIN SETUP>
<SYSTEM SETUP>
< >
<MORE 2/2 >

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2.5 Simple Operation
Simple operation steps for SME1402:
Use [MEAS], [SYSTEM] or [FILE] or soft keys to enter into the page required to enter. (Refer to
figure 3-1)
Use arrow buttons ([←] [↑] [→] [↓]) to move the cursor to desired zone.
When the cursor is moved to a soft key zone, press ENTER to confirm the selection. If it is
required to input a number or a file name, use the keyboard to input and press ENTER to finish
entry. You can use arrow buttons to select a number or a letter.
SME1402 touch screen operation is much easier. Just use your finger to touch the corresponding
function on the screen and then the corresponding work will be done.
NOTE: DO NOT use acute units or nails to touch the screen. Doing so will cause damage to the
screen, our company shall not be liable to this case.
2.6 Starting Up
Ensure the power earth (ground) wire is grounded, plug into a 3-wire power socket. Press down
the power switch on the bottom left corner of the front panel, the instrument will be started up
and a boot screen will be displayed.
Figure 2-4 shows the boot screen of SME1402, indicating product information such as instrument
trademark, model and version.
Figure 2-4 SME1402 Boot Screen
If the password protection is enabled, you will be asked to input your password. After inputting
your password, press [ENTER] to enter into the main menu page.
NOTE: This series of products have enabled password protection and the default password is 2516. You
can reset the password by yourself. Refer to the password function on <SYSTEM SETUP> page for more
details.

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3Basic Operation
3.1 <MEAS DISP>
Touch the screen or press down [MEAS], the <MEAS DISP> page will be displayed in the screen shown
as figure 3-1.
Figure 3-1 Measure Display
The following measurement parameters can be set on this page.
Measurement function (FUNC R-T)
Resistance range (RANGE AUTO)
Measurement speed (FAST SLOW1)
Measurement temperature (TC/∆t)
File manage (FILE)
Other tools (TOOLS)
Soft keys (used to enter into operation pages)
The following test conditions are displayed in the measurement result/condition display area on
this page. These conditions can be set on the tool function page of <MEAS SETUP> or <MEAS DISP>
page.
0 ADJ (ON/OFF):
ON: turn on the function of SHORT zero clearing (self-calibration function)
OFF: turn off the function
OVC (ON/OFF): compensation of the offset voltage, i.e. compensation of the measurement error
due to thermoelectromotive force on the DUTs. (SME1402)
3.1.1 Measurement Functions
Measurable parameters on SME1402 are as follows:
R (Resistance)
R-T (Resistance and temperature)
T (Temperature)
LPR (resistance test at low current mode)
LPR-T (Temperature and resistance test at low current mode)

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Note: Settings and modifications of all functions can be taken by the following steps:
1. Touch the corresponding function zone and then select the desired soft keys.
2. Use arrow buttons and [ENTER] button to set and modify the corresponding function.
Setting steps for measurement function:
You use buttons or touch the screen to select FUNC, available soft keys will be displayed in the right
soft key zone.
R
R-T (SME1402)
T (SME1402)
LPR
LPR-T (SME1402)
3.1.2 Measurement Range
There are two resistance modes: resistance measurement mode and resistance measurement at
low voltage mode. Measure and display two types of parameters: resistance parameters and
temperature parameters.
SME1402 has 9 DC resistance ranges: 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω, 2 Ω, 20 Ω, 200 Ω, 2MΩ
SME1402B has 7 DC resistance ranges: 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω, 2 Ω, 20 Ω
SME1402, SME1402B has 4 DC low voltage resistance ranges: 2Ω, 20Ω, 200Ω, 2KΩ
SME1402 The testing range of temperature (PT 00): -10℃
℃℃
℃ to 99.9℃
℃℃
℃.
The testing range of temperature (Analog): 0 to 2V
Operation steps for setting measurement ranges:
1) Touch the range zone, the following soft keys will be displayed.
AUTO Set the range mode as AUTO.
HOLD Switch the range mode from AUTO to HOLD. When the range mode is set as HOLD,
the range will be locked at the current measurement range which is displayed in the
RANG zone.
↑ (+) Increase the range.
↓ (-) Decrease the range.
2) Touch the corresponding soft key to select the required range.
3.1.3 Measurement Speed
SME1402 displays the measurement result as a -digit number in the decimal point floating mode.
The measurement result of the speed is shown as a 4-digit number with one digit after the decimal
point.
1) Touch the speed zone, the following soft keys will be displayed.
FAST
MED
SLOW1
SLOW2
2) Use above soft keys to modify the speed.

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3.1.4 File Manage
1）Touch FILE, the following soft keys will be displayed.
File Manage: Touch this key to enter into the file operation page.
Screen Copy：Touch this key to capture the current screen and save it to a U disk in
image format. Before a U disk is inserted, the save function will be disabled.
Save Data OFF: Touch this key, this key will turn to <Save Data ON> and each
measurement result will be continuously saved to the .CSV file in U disk. Before a U disk
is inserted, the save function will be disabled. Press the key again, this key will turn to
<Save Data OFF> and the measurement result will not be saved. When switching
between ON and OFF once, a new .CSV file will be created in a U disk. The measurement
data can be analyzed by opening the file through the computer.
2）As for File Manage, please refer to 4.2 for details.
3.1.5 Tools
Operation steps for setting tools:
Touch TOOLS, the following soft keys will be displayed in the soft key zone.
Display (ON/OFF): Display the measurement result or not. ON is to display, OFF is not to
display.
0 ADJ (ON/OFF): OFF is to turn off the function of short correction, while ON is to turn on the
function of short correction.
0 ADJ: Execute short correction. In this process, please ensure the test terminals have been
correctly shorted. Only by doing this, unexpected measurement errors could be avoided.
NOTE:
SPEED：
：：
：In SLOW2, SLOW1, MED or FAST mode, the measurement result is a -digit number.
SAVE: Once SAVE DATA OFF is selected, you must press SAVE DATA ON to terminate or the saved
data will be lost.
SHORT: When this key is used to take short correction, the test fixture should be correctly
connected. If not, the deducted data will be wrong, and further it will cause result errors. The
correct connection is shown as the following figure.

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3.2 <COMP DISP>
Touch <MEAS DISP> or press [MEAS] to select the COMP DISP soft key to enter into the <COMP
DISP> page shown as figure 3-2.
Figure 3-2
The following parameters can be set on this page:
FILE
TOOLS
COMP ON/OFF
COMP MODE
NOM (nominal value)
Low limit (%)
3.2.1 File Manage
1) Touch FILE, the following soft keys will be displayed:
File manage: Touch this soft key to enter into the file manage page.
Screen copy: Touch this key to save the current screen page to a U disk. If no U disk is
found, this function will be disabled.
Save Data OFF: Touch this key, this key will turn to <Save Data ON> and each
measurement result will be continuously saved to the .CSV file in U disk. Before a U disk
is inserted, the save function will be disabled. Press the key again, this key will turn to
<Save Data OFF> and the measurement result will not be saved. When switching
between ON and OFF once, a new .CSV file will be created in a U disk. The measurement
data can be analyzed by opening the file through the computer.
2) Refer to 4.2 for more details about FILE MANAGE.
3.2.2 Tools
Touch <TOOLS>, the following soft keys will be displayed.
DISP (ON/OFF): ON is to display the measurement result and OFF is not to.
BEEP (NG/GD/OFF): NG: The beeper will sound when the measurement result is not
consistent with the setting value. GD: The beep will sound when the measurement result
conforms to the setting value. OFF: Turn off the beeper.

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 COUNT (ON/OFF): ON：Start count; OFF: Stop count.
 COUNT CLEAR：
：：
：Clear the count numbers of TOT, IN, HI and LO and start count from zero.
 DISP MODE NORMAL: press the key, DISP Mode DEV will be displayed. The value of
deviation △ will be displayed in the main display interface and the display range is -
99.9~999.9%. Press the key again and DISP MODE NORMAL will be displayed.
NOTE: △={( measured resistance value - nominal resistance)/ nominal resistance} x 100%
3.2.3 COMP (ON/OFF)
COMP (ON/OFF): ON indicates the compare function has been turned on. Only when the compare
function is in ON mode, count and beep function can be enabled.
OFF is to turn off this function.
3.2.4 Compare Mode and SETTINGS of ABS & Percent Error
You can set the compare mode and concerned values by touching the screen or pressing keyboard.
There are two compare modes: ABS and %.
Compare modes:
1) ABS (high and low limits)
In this mode, you can set low and high limits. The instrument will take comparison between
the tested values and the set ones so as to judge the DUT is HI or LO or IN. The set upper limit
value should be equal or larger than the lower limit value.
2) % (percent error)
In this mode, you can set the nominal value and the percent error. If you set the nominal value
as 100 and percent as 10, the set value should be 100±10%. The instrument will take
comparison between the tested values and the set ones so as to judge the DUT is HI or LO or
IN. The nominal value is the base value in bias display mode.
3.3 <BIN DISP>
Touch <MEAS DISP> or press [MEAS]. Then select the soft key BIN DISP to enter into <BIN DISP>
shown as figure 3-3.
Figure 3-3 Bin display

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The following parameters can be set on <BIN DISP>.
FILE
1) File Manage: Touch this key to enter into the file manage page.
2) Screen Copy: Touch this key to save the current screen page to an external U disk. If no
U disk is found, this function will be disabled.
3) Save Data OFF: Touch this key, this key will turn to <Save Data ON> and each
measurement result will be continuously saved to the .CSV file in U disk. Before a U disk
is inserted, the save function will be disabled. Press the key again, this key will turn to
<Save Data OFF> and the measurement result will not be saved. When switching
between ON and OFF once, a new .CSV file will be created in a U disk. The measurement
data can be analyzed by opening the file through the computer.
TOOLS
DISP (ON/OFF): ON is to display the result while OFF is not to.
BIN
BIN ON/OFF: ON is to turn on bin compare display while OFF is to turn off.
BIN BEEP ON/OFF
OFF is to turn off the bin beep function.
NG: Bin beep function is ON. When one of the bin comparator results is not consistent with
the bin setting, the beep will sound.
GD: Bin beep function is ON. When the bin comparator results are consistent with bin setting,
the beep will sound.
NG Color
OFF：When the corresponding bin comparator result is different from the bin setting, there
is no display. GREY: When the corresponding bin comparator result is different from the bin
setting, the corresponding bin will be displayed in grey; RED: When the corresponding bin
comparator result is different from the bin setting, the corresponding bin will be displayed in
red; GREEN: When the corresponding bin comparator result is different from the bin setting,
the corresponding bin will be displayed in green.
GD Color
OFF：When the corresponding bin comparator result conforms to the bin setting, there is no
display. GREY: When the corresponding bin comparator result conforms to the bin setting, the
corresponding bin will be displayed in grey; RED: When the corresponding bin comparator
result conforms to the bin setting, the corresponding bin will be displayed in red; GREEN:
When the corresponding bin comparator result conforms to the bin setting, the corresponding
bin will be displayed in green.
---------------------------------------------------------------------------------------------------------
NOTE: NG is the abbreviation of not good while GD is the abbreviation of good.
---------------------------------------------------------------------------------------------------------

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3.4 STATIS DISP
Touch the main menu or press [MEAS]. And then touch the soft key STATIS DISP to enter into the
<STATIS DISP> page shown as figure 3-4.
Figure 3-4 Statistic display
The function of this page is to count measurement data. It is workable to analyze the average value
of results for multiple measurements, the PASS/FAIL rate and some engineering coefficients.
Details are as below.
3.4.1 Edge Mode and Settings of Its Relevant Values
Touch this key, two modes are available: ABS (high and low limits) and % (percent error mode).
When ABS is selected, the adjacent two items on the same line will be high and low limits. Touch
them to set the values. When % is selected, the two items on the same line will be nominal value
and percent. Touch them to set the values.
3.4.2 Status ON/OFF
Status ON/OFF:
(1) When ON is selected, except the trigger button, no other keys and buttons could be enabled.
The instrument makes a statistic at every trigger.
(2) When OFF is selected, the statistic function will be turned off and other keys and buttons is
available.
3.4.3 Parameters of Statistic Analysis
1) : Average value. Corresponding formula:
2) : Population Standard Deviation. Corresponding formula: （=）
3) : Sample Standard Deviation. Corresponding formula: （=）
X
x
xn =∑
σ
2
2
x nx
n
σ
−
=∑
n
σ
s
2
2
1
x nx
sn
−
=
−
∑
1n
σ
−

Scientific
SME1402 20/70
4) : Process Capability Index (Dispersion). Corresponding formula:
) : Process Capability Index (Deviation). Corresponding formula:
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NOTE: Explanations for variables in formulas from 1) to 5):
: The total measurement times that a sample is used to make statistical analysis, which corresponds
to the value of TIMES.
: Measurement results of each sample measurement. The data are saved in the instrument buffer
memory.
: Upper limit value, used to be compared, corresponds to the value of UPPER limit.
: Lower limit value, used to be compared, corresponds to the value of LOWER limit.
When , > 1.33, the working capacity is ideal.
When 1.33 , > 1.00 , the working capacity is qualified.
When 1.00 , , the working capacity is insufficient.
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6) Hi (num): Be used to add up times that the measurement result exceeds the upper limit value.
7) Lo (num): Be used to add up times that the measurement result is less than the lower limit value.
8) In (num): Be used to add up times that the measurement result passes.
9) Max: Be used to display the maximum measurement result among all measurement results.
10) Max Index: Be used to display the test no. corresponding to the maximum measurement result.
11) Min: Be used to display the minimum measurement result among all measurement results.
12) Min Index: Be used to display the test no. corresponding to the minimum measurement result.
3.4.4 TOOLS
CLEAR: Clear all parameters obtained from last statistic.
TRIGGER: Trigger the instrument to execute a measurement.
3.4.5 FILE
1) File Manage: Touch this key to enter into the file manage page.
2) Screen copy: Touch this key to save the current screen page to an external U disk. If no U disk is
found, this function will be disabled.
3) Save Data OFF: Touch this key, this key will turn to <Save Data ON> and each measurement result
will be continuously saved to the .CSV file in U disk. Before a U disk is inserted, the save function
will be disabled. Press the key again, this key will turn to <Save Data OFF> and the measurement
result will not be saved. When switching between ON and OFF once, a new .CSV file will be
created in a U disk. The measurement data can be analyzed by opening the file through the
computer.
NOTE 1: Data storage format successively is R, T, COMP, DEV, DT, BIN1, BIN2, BIN3, COUNT, VCOUNT,
STAT, and Time.
p
C
| |
6
p
Hi Lo
Cs
−
=
p
C K
| | | 2 |
6
p
H i L o H i L o x
C K s
− − + −
=
n
x
Hi
L o
p
Cp C K
≥p
Cp C K
≥p
Cp C K