Applent Instruments AT811 User manual

!$Instruments Inc.
Address: Lanlin Dangnan Industrial Park,
Changzhou, Jiangsu, China (PRC)
Post Code: 213014
Telephone (Sales):
0086-0519-88805550 / 89966117/89966227
Fax：[phone]
Sales Email: sale[email protected]
Tech Email: [email protected]
http://www.applent.com
©2005-2011 Applent Instruments Inc.
English
Revision B3
FIRMWARE REVISIONS
This manual applies directly to instruments that
have the firmware Rev. B2.x
[
AT811 LCR Meter
]
User’s Manual

Safety Summary
Warning Dangerous：
When you notice any of the unusual conditions listed below, immediately terminate operation and disconnect the
power cable.
Please Contact Applent Instruments Incorporation sales representative for repair of the instrument. If you continue to
operate without repairing the instrument, there is a potential fire or shock hazard for operators.
Instrument operates abnormally.
Instrument emits abnormal noise, smell, smoke, or a spark-like light during the operation.
Instrument generates high temperature or electrical shock during operation.
Power cable, plug, or receptacle on instrument is damaged.
Foreign substance or liquid has fallen into the instrument.
The following general safety precautions must be observed during all phases of operation, service, and repair of this
instrument. Failure to comply with these precautions or with specific WARNINGS elsewhere in this manual may
impair the protection provided by the equipment. In addition it violates safety standards of design, manufacture, and
intended use of the instrument.
Disclaimer
Applent Instruments assumes no liability for the customer's failure to
comply with these requirements.
Ground
The Instrument
To avoid electric shock hazard, the instrument chassis and cabinet must be
connected to a safet
y earth ground by the supplied power cable with earth
blade.
DO NOT
Operate In An Explosive
Atmosphere
Do not operate the instrument in the presence of inflammable gasses or
fumes. Operation of any electrical instrument in such an environment
constitutes a definite safety hazard.
Keep Away
From Live
Circuits
Operating personnel must not remove instrument covers. Component
replacement and internal adjustments must be made by qualified
maintenance personnel. Do not replace components with the power cable
connected. Under certain conditions, dangerous voltages may exist even
with the power cable removed. To avoid injuries, always disconnect power
and discharge circuits before touching them.
DO NOT
Service Or Adjust Alone Do not attempt internal service o
r adjustment unless another person,
capable of rendering first aid and resuscitation, is present.
DO NOT
Substitute Parts Or
Modify Instrument
Because of the danger of introducing additional hazards, do not install
substitute parts or perform unauthori
zed modifications to the instrument.
Return the instrument to an Applent Instruments Sales and Service Office
for service and repair to ensure that safety features are maintained.

3
CERTIFIACTION, LIMITED & LIMITATION OF UABILITY
Applent Instruments, Inc. （shortened form Applent）certifies that this product met its published specifications at
the time of shipment from the factory. Applent further certifies that its calibration measurements are traceable to the
People’s Republic of China National Institute of Standards and Technology, to the extent allowed by the Institution’s
calibration facility or by the calibration facilities of other International Standards Organization members.
This Applent instrument product is warranted against defects in material and workmanship for a period
corresponding to the individual warranty periods of its component products. The warranty period is 1 year and
begins on the date of shipment. During the warranty period, Applent will, at its option, either repair or replace
products that prove to be defective. This warranty extends only to the original buyer or end-user customer of a
Applent authorized reseller, and does not apply to fuses, disposable batteries or to any product which, in Applent’s
opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or
handling.
For warranty service or repair, this product must be returned to a service facility designated by Applent. The buyer
shall prepay shipping charges to Applent and Applent shall pay shipping charges to return the product to the Buyer.
However, the Buyer shall pay all shipping charges, duties, and taxes for products returned to Applent from another
country.
Applent warrants that its software and firmware designated by Applent for use with an instrument will execute its
programming instruction when properly installed on that instrument. Applent does not warrant that the operation of
the instrument, or software, or firmware, will be uninterrupted or error free.
The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer,
Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside the environmental
specifications for the product, or improper site preparation or maintenance.
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. APPLENT SHALL NOT BE LIABLE
FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING
LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT,
RELIANCE OR ANY OTHER THEORY.
Applent Instruments, Inc.
Changzhou,
Jiangsu,
The People’s Republic of China.
Rev.A2 January, 2005

4
AT811 User’s Manual
Contents
Safety Summary ........................................................................................................................................................ 2
CERTIFIACTION, LIMITED & LIMITATION OF UABILITY ..................................................................... 3
Contents............................................................................................................................................................. 4
1Unpacking and Inspection ................................................................................................................................. 5
1.1 Packing List........................................................................................................................................... 5
1.2 Power Supply......................................................................................................................................... 5
1.3 Setup Fuse.............................................................................................................................................. 5
1.4 Operating Environment ......................................................................................................................... 6
1.5 Cleaning................................................................................................................................................. 6
1.6 How to Remove the Handler ................................................................................................................. 7
2General............................................................................................................................................................... 8
2.1 Introduction ........................................................................................................................................... 8
2.2 Main Specifications ............................................................................................................................... 8
2.3 Main Function........................................................................................................................................ 8
3Start-up ............................................................................................................................................................ 10
3.1 A tour of front panel ............................................................................................................................ 10
3.1.1 Front Panel Overview.............................................................................................................. 10
3.1.2 Main Menu Key........................................................................................................................11
3.1.3 Range Control key....................................................................................................................11
3.1.4 Function Key ........................................................................................................................... 12
3.1.5 LCD ......................................................................................................................................... 12
3.1.6 Real Panel................................................................................................................................ 13
3.2 Power Up............................................................................................................................................. 13
3.2.1 Power-up Defaults ................................................................................................................... 13
3.2.2 Warm-up Time......................................................................................................................... 13
3.2.3 Connect to the Unknown Terminals......................................................................................... 13
4Configuration................................................................................................................................................... 15
4.1 Meas Key............................................................................................................................................. 15
4.1.1 Testing Parameters【FUNC】................................................................................................ 16
4.1.2 Equivalent Mode【EQU】...................................................................................................... 16
4.1.3 Display Mode【DISP】.......................................................................................................... 17
4.1.4 Frequency Select【FREQ】.................................................................................................... 17
4.1.5 Signal Level【LEVEL】........................................................................................................ 17
4.1.6 Test Speed【RATE】.............................................................................................................. 17
4.1.7 Source Resistance【SRES】................................................................................................... 17
4.2 SYST Menu......................................................................................................................................... 18
4.2.1 Beep Setting............................................................................................................................. 18
4.2.2 Turn ON/OFF the comparator【COMP】.............................................................................. 18
4.2.3 Turn on theAUX sorting【AUX】......................................................................................... 19
4.2.4 Volume Control【TONE】..................................................................................................... 19
4.2.5 Turn off the function key-indicator light【LED】.................................................................. 19
4.2.6 Administrator Menu【ADMIN】........................................................................................... 19
4.3 COMP Menu ....................................................................................................................................... 19
4.3.1 Input Value............................................................................................................................... 20
4.3.2 Sorting Mechanism.................................................................................................................. 20
4.4 [FILE] Menu........................................................................................................................................ 21
4.5 CAL Menu........................................................................................................................................... 22
4.6 DISP Key............................................................................................................................................. 23
4.7 Range Selection................................................................................................................................... 24
5Specification.................................................................................................................................................... 25
5.1 Technique Data.................................................................................................................................... 25
5.1.1 General Specifications:............................................................................................................ 26
5.1.2 Dimension................................................................................................................................ 27
6Model............................................................................................................................................................... 28
6.1.1 Model Comparation................................................................................................................. 28

5
Unpacking and Inspection
1Unpacking and Inspection
This chapter provides the following information:
Packing List
Power Supply
Setup Fuse
Operating Environment
Cleaning

How to Remove the Handler
1.1 Packing List
After you receive the instrument, carry out checks during unpacking according to the following
procedure.
1．Check that the packing box or shock-absorbing material used to package the instrument has
not been damaged
2．Check all the packaged items supplied with the meter have been provided as pert the specified
optioned.
If it is damaged or less accessories, pls contact Applent Sales or Distributors.
1.2 Power Supply
Confirm that the power supplied to the AT811 meets the following requirements
Voltage: 90V-260VAC
Frequency: 47-440Hz
Power: Max10VA
WARNING：
The ground wire should be earthed to avoid being electric shock.
If you change the power cord, make sure the ground wire earthed.
1.3 Setup Fuse
Figure 1-1 Fuse
Fuse

6
AT811 User’s Manual
Please use the following fuse type 250V,0.5A Slow-Blow
1.4 Operating Environment
Ensure that the operating environment meets the following requirements.
Temperature: 0°C～55°C，
Humidity: @40°C ≤95%RH
Technique Temperature: 23°C ±5°C
Technique Humidity: <70%RH
1.5 Cleaning
To prevent electrical shock, disconnect the AT811 power cable from the receptacle before cleaning.
Use a dry cloth or a cloth slightly dipped in water to clean the casing.
Do not attempt to clean theAT811 internally.
WARNING:
Don’t Use Organic Solvents (such as alcohol or gasoline) to clean the Instrument

7
Unpacking and Inspection
1.6 How to Remove the Handler
A handle kit is attached to AT811
Figure 1-2 Instrument Handle
1 Retracted

Carrying Position

2. Extended
Remove Handler (Lift the handle perpendicular to the unit while pulling it in the diredtion of 1)

8
AT811 User’s Manual
2General
This chapter provides the following information:
Index
Models Introduction
Main Specification
Feature Overview
2.1 Introduction
Thank you for purchasingAT811 LCR Meter.
The AT811 is a general-purpose LCR meter for incoming inspection of components, quality control,
and laboratory use. The AT811 is used for evaluating LCR components, materials, and
semiconductor devices.
The AT811 can output comparison/decision results for sorting components into 5 bins.
2.2 Main Specifications
AT811 specifications include all the basic technique data & range of testing. All these can be reached
before put in market.

Complete technique parameters please reference addendumA
Parameters: L, C, R, |Z| , D, Q
Testing Frequency: 100Hz，120Hz，1kHz，10kHz Accuracy: ±0.02%
Signal Level: 0.3V, 1.0V Accuracy: ±10%
Testing Speed: Fast & Slow 5 times/second, 2 times/second
Source Resistance: 30Ω&100Ω
Range: 6 ranges, manual or automatic
Equivalent: Serial & parallel
Terminals: Five-terminal
Accuracy: 0.25%
2.3 Main Function
Display:
LCD display, two parameters are displayed simutineously, mian parameters: 5 dgts;
sub-parameters: 6 dgts
Display A：L, C, R, Z
Display B：Q, D
Calibration Function:
Short & Open sweep frequency for all ranges
Short & Open zero-setting for each range

9
General
Comparator (sorting) Function:
5-bins sorting result: 3-bins GD、1-bin AUX & 1-bin UG
Automatic Parameters Selection
Selecting the Parameters automatically according to the DUT

10
AT811 User’s Manual
3Star t-up
This chapter provides the following information:
A tour of front panel——including key, VFD & Test terminal introduce
A tour of rear panel—— power & interface introduce
Power up—— Self-checking & preheated time introduce
Information display——Concerning the tips appear during the start up & using
Testing——Including how to connect to the test terminal, signal source, testing
function, range setting, way of display & sorting system
3.1 A tour of front panel
3.1.1 Front Panel Overview
Figure 3-1 Front Panel Overview
Auto
Meas Disp
Syst Comp
File
Cal
0 . +/-
123
456
7 8 9Esc
←
Enter
1
3
4
5
6
7
1
Main Menu - To apply to switch 6 groups menu
2
Numeric Key - To apply to input numbers, ESC is used to return to the main menu
3
Unknown Terminal - To connect four-terminal test clip or Kelvin Clip
4
Range -Automatic /manual, manual range selection
5
Function Keys - Used to select menu item
6
Power Switch
7
Display Screen - Details please reference chapter “LCD”
Please do not put DC voltage or current to the test terminal
Insure capacitor have been discharged totally before testing it.
Reference: Details please reference chapter ”connection of test terminal”
Note:
The instruments can not be closed during the self-checking

11
Start-up
3.1.2 Main Menu Key
Figure 3-2 Main Menu Key
Meas Disp
Syst Comp
File Cal
Key
Function
Meas
Test function menu. Including the following items:
1. FUNC Parameters Selection
2. EQU Equivalent Selection
3. DISP ∆% Display
4. FREQ Frequency Selection
5. LEVEL Level Seclection
6. RATE Testing Speed Selection
7. SRES Source Resistance Selection
Disp
To display the selected item on the bottom menu
Note: Only useful to [Meas] Menu
Syst
System Setting. Include the following items:
1. BEEP Beep setting
2. COMP Comparator Switch
3. KEY-LED Function light switch
4. TONE Volume setting
5. ADMIN Menu Management（Password protection）
Comp
Comparator Setting
File
File management, include SAVE & ERASE Selection
Cal
Cal menu, including OPEN & SHORT sweep frequency zero-setting
3.1.3 Range Control key
Figure 3-3 Range Control Key
Auto
Menu
Function
Auto
Switch in both automatic & manual

12
AT811 User’s Manual
Up and Down key are used to select range
3.1.4 Function Key
Figure 3-4 Function Key
Function Key: Used to select menu items, and performed operation order.
：Used to turn page
3.1.5 LCD
Figure 3-5 LCD
ID/No.
Function

Remote Control

Waiting, System busy
F S
Speed: Fast & Slow
COMP
Comparator ON
Beep ON
AUTO
Automatic Range
1
First Display Line
2
Second display line
3
Menu bar
4
Range Number

13
Start-up
5
Comparator Resulte
3.1.6 Real Panel
Figure 3-6 Real Panel
Fuse
1
2
3
No.
Function
1
Outlet
90VAC～260VAC
2
Fuse Box
3
Not Connected
3.2 Power Up
3.2.1 Power-up Defaults
The power-on default will be the last configuration you saved.
Parameters
Frequency
Test Speed
Equivalent Way；
Source Resistance
Test Level
Comparator Setting
Beep Setting
3.2.2 Warm-up Time
AT811 is ready to use as soon as the power-up sequence has completed. However, to achieve the
accuracy rating, warm up the instrument for 30 minutes.
3.2.3 Connect to the Unknown Terminals
If you use the Kelvin Test Clip which together with the instruments to test, please according to the
following steps to connect.
Figure 3-7 Unknown Terminals

14
AT811 User’s Manual
Warning:
Do not apply DC voltage or current to the UNKNOWN terminal. Applying DC voltage or current
may lead to device failure.
The capacitors should be discharged before connected to the terminals.

15
Configuration
4Configuration
This chapter provides the following information:
How to configure the instruments.
4.1 Meas Key
Press
Meas
key, a measurement menu bar will be displayed, and Meas key is lighted.
The following settings are included:
【MEAS MENU】
FUNC
Test Parameters
L-Q
L-Q
C-D
C-D
R-Q,
R-Q
Z-D
Z-D
Z-Q
Z-Q
AutO
Auto Parameter Select
EQU
Equivalent Mode
SER
Serial
PAL
Parallel
Disp
Display Mode
Dir
Direct Display
abs
Absolute deviation (∆)
Per
Relative Deviation (∆%)
Freq
Frequency Select
100
100Hz
120
120Hz
1kHz
1kHz
10kHz
10kHz
LEVEL
Signal Level Select
0.3V
0.3Vrms
1.0V
1.0Vrms
Rate
Test Speed
SLOW
Slow
Fast
Fast
Sres
Source Resistance
30o
30Ω
100o
100Ω

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AT811 User’s Manual
4.1.1 Testing Parameters【FUNC】
Testing parameters【FUNC】have the following:
L-Q, C-D, R-Q, Z-d, Z-Q, AUTO
AUTO item is automatic parameters selection
UNIT:
L
µH
mH
H
C
pF
nF
µF
R/Z
Ω
kΩ
MΩ
4.1.2 Equivalent M o de 【EQU】
Equivalent way【EQU】includes two choices:
SER：Series Equivalent (Series abbr. SER)
PAL：Parallel Equivalent (Parallel abbr. PRL)
Actual capacitance, inductance and resistance are not the ideal purely reactive and purely resistive
components, they are usually resistance and reactance components exist.
A real impedance component may be represented by ideal resistors and ideal reactors (inductors or
capacitors) used to simulate the form of series or parallel.
AT811 can be used in the mathematical formula to convert, but the two forms are
different. The inconsistency depends on the quality factor Q (or loss D)
Ta b le 4-1 Transformational relation between series & parallel
Circuit Type Loss Factor
Series & Paraller
Transformation
C
Cp
Rp
QRfC
D
Pp
1
21==
p
)1(
)1(
22
2
DDRR
CDC
PS
PS
+=
+=
Cs Rs
Q
CfRD
SS
1
2==
p
22
2
)1(
)1(1
DDRR
CDC
SP
SP
+=
+=
L
Lp
Rp
QR
fL
D
P
P1
2==
p
)1(
)1(1
22
2
DDRR
LDL
PS
PS
+=
+=
Lp Rp
QfL
R
D
S
S1
2== p
22
2
)1(
)
1(
DDRR
LDL
SP
SP
+=
+=
Here: Subscript “s” is series form
Subscript “p” is parallel form
The above formula, should pay particular attention are: the conversion between serial and parallel
relations with D² or Q²（Q=1/D）related. D² value directly affects the size of the size of its value, the
following cases of capacitors description:
A capacitor, the series equivalent capacitance are Cs=0.1μF, and the loss were D1=0.0100,
D2=0.1000, D3=1.0000, the formula under the table, parallel equivalent capacitance should be:
Cp1 = 0.09999 µF

17
Configuration
Cp2 = 0.09901 µF
Cp3 = 0.05000 µF
Thus, when Ｄ< 0.01, Cs and Cp is basically the same, but >0.01, the difference will be obvious,
such as D=0.1 hours, a difference of 1% D=1 when the difference between a times.
4.1.3 Di s p lay M ode 【DISP】
Press 【DISP】to choose the main parameters display way:
DIR：Show, main parameters will display the actual value of DUT
ABS: ∆，absolute deviation of DUT will be displayed in the first line
stdxXX −=∆
Xx：measured value
Xstd：nominal value
PER：∆%，relative deviation of DUT will be displayed in the first line
%100% ⋅
−
=∆
std
stdxXXX
4.1.4 Frequency Sele c t【FREQ】
Accuracy: ±0.02%
AT811provides 4-bin s test frequency:
100Hz，120Hz，1kHz，10kHz
In general, the higher frequency, the smaller capacitor value and inductor can be measured.
4.1.5 Signal Level【LEVEL】
Accuracy: ±10%
AT811 provides 2-bins test level:
0.3V &1.0V
If DUT does not have requirements about the test level, please setting1.0V
4.1.6 Test Speed【RATE】
AT811provides two speeds:
SLOW & FAST
4.1.7 Source Resistance【SRES】
AT811 provides two kinds source resistance:
30Ω& 100Ω
In general, 30Ωsource resistance will be a better choice.

18
AT811 User’s Manual
4.2 SYST Menu
Press
Syst
，SYST menu will be displayed in menu bar, SYST Key light is lit. Following
settings are included in the system menu.
Ta b le 4-2 [SYST] Menu list
【SYST MENU】
BEEP
Beep Setting
OFF
OFF
P1
BIN1 GD
P2
BIN2 GD
P3
BIN3 GD
Aux
AUX NG
NG
NG
COMP
Comparator
OFF
OFF
ON
ON
AUX
AUX-BIN
OFF
OFF
ON
ON
TONE
BEEP TONE
LOW
Low volume
M1
Mid-1 volume
M2
Mid-2 volume
High
High volume
Led
Key LED
OFF
OFF
ON
ON
Rate
Test Speed
SLOW
Slow
Fast
Fast
ADMIN
Administrator Menu (Password Protected)
4.2.1 Beep Setting
There have six choices for your reference:
OFF Beep OFF
P1 GD Bin-1 beep
P2 GD Bin-2 beep
P3 GD Bin-3 beep
AUX AUX (sub parameters NG) beep
OUT NG beep
4.2.2 Turn ON/OFF the comparator【COMP】
The build-in comparator can be turned off via COMP setting.
OFF Comparator OFF
ON Comparator ON
The mark of COMP displayed on the above of LCD screen means the comparator is turned on.

19
Configuration
4.2.3 Turn on the AUX sorting【AUX】
AUX:AUX (sub-parameters) unqualified
OFF Turn Off, displayed OUT while the sub parameters are unqualified.
ON Turn On, displayed AUX while the sub parameters are unqualified.
4.2.4 Volume Control【TONE】
The volume of AT811 can be adjusted, there are four choices:
LOW Low volume
M1 Middle volume 1
M2 Middle volume 2
HIGH High volume
4.2.5 Turn off the function key-indicator light【LED】
Key light in the function key dynamically notes the position of every choice; you can set the light via
these choices while it affects your vision.
OFF Turn off the light
ON Turn on the light
Note:

Key light of the main function keys CANNOT be closed.
4.2.6 Administrator Menu【ADMIN】
The most important settings of the instruments are included in the administrator menu, and can only
be used while the unusual, debugging, and calibration of the instruments.
Note:
Password has been set for menu items to prevent error operation of the user, the password will not
show in the User’s Menu.
Please contact technology department if you have calibration aptitude.
4.3 COMP Menu
Press
Comp
key, comparator menu items will be diaplayed in menu bar, Comp light key is lit.
Comparator menu includes the following settings:
Ta b le 4-3 [COMP] Menu list
【COMP MENU】
L:0.0000Uh
Nominal Value of L
C:0.0000pf
Nominal Value of C
R:0.0000 o
Nominal Value of R
Z:0.0000 o
Nominal Value of |Z|
D~:0.0000
D: upper limit value
D_:0.0000
D: Low limit value
Q~:0.0000
Q: upper limit value

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AT811 User’s Manual
Q_:0.0000
Q: low limit value
P1~:0.0000
P1 upper limit value
P1_:0.0000
P1 low limit value
P2~:0.0000
P2 upper limit value
P2_:0.0000
P2 low limit value
P3~:0.0000
P3 upper limit value
P3_:0.0000
P3 low limit value
4.3.1 Input Value
Press the corresponding function key (the first or the fourth key of each page), enter input box.
Figure 4-1 Sorting value input box
D,Q, P1, P2, P3 with no units, press Enter to complete the input.
4.3.2 Sorting Mechanism
Concerning the sorting mechanism of AT811, please reference the following pictures:
Figure 4-2 Sorting Flow Chart