Applent Instruments AT5220 User manual

User’s Guide
Rev.A
AT5220
Multi-channel Battery Meter
~@
®
Applent Instruments Ltd.
Address: 3 Floor, No. 61, Baolong International,
Changzhou, Jiangsu, China (PRC)
Post Code: 213014
Tel: [phone]
Fax: [phone]
Sales Email: [e-mail]
Tech Email: [email protected]
http://www.applent.com

2 AT5220 User’s Guide
CERTIFICATION, LIMITED WARRANTY, & LIMITATION OF
LIABILITY
Applent Instruments, Ltd. （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, Ltd.
Changzhou,
Jiangsu,
China,
Rev. A3

3
Unpacking and Preparation
Contents
CERTIFICATION, LIMITED WARRANTY, & LIMITATION OF LIABILITY..................................................................................... 2
Contents ...................................................................................................................................................................................................... 3
Figure Contents ........................................................................................................................................................................................ 5
Table Contents .......................................................................................................................................................................................... 5
1. Unpacking and Preparation.................................................................................................................................................................6
1.1 Incoming Inspection .......................................................................................................................................................... 6
1.2 Power requirements and setting up Fuse................................................................................................................... 6
1.3 Environmental Requirements.......................................................................................................................................... 7
1.4 Cleaning.................................................................................................................................................................................. 7
1.5 How to Remove the Handle ............................................................................................................................................ 7
2. Overview.............................................................................................................................................................................................9
2.1 Introduction .......................................................................................................................................................................... 9
2.2 Main Functions..................................................................................................................................................................... 9
2.2.1 Range............................................................................................................................................................................. 9
2.2.2 Measuring Speed....................................................................................................................................................... 9
2.2.3 Trigger Mode ............................................................................................................................................................10
2.2.4 Basic Accuracy ..........................................................................................................................................................10
2.2.5 Correction...................................................................................................................................................................10
2.2.6 Comparator Function（Sorting Function）...................................................................................................10
2.2.7 System Setup ............................................................................................................................................................10
2.2.8 Interface...................................................................................................................................................................... 10
3. Startup...............................................................................................................................................................................................11
3.1 Front Panel...........................................................................................................................................................................11
3.1.1 Front Panel Description.........................................................................................................................................11
3.1.2 Rear Panel...................................................................................................................................................................11
3.2 Power ON/OFF ................................................................................................................................................................... 12
3.2.1 Power ON ...................................................................................................................................................................12
3.3 Connect to Device under Test (DUT)..........................................................................................................................12
4. [Meas] Page.......................................................................................................................................................................................14
4.1 <MEAS DISPLAY> Page ..................................................................................................................................................14
4.1.1 【Trigger】Mode ...................................................................................................................................................14
5. [Setup] Page......................................................................................................................................................................................15
5.1 Measurement Setup.........................................................................................................................................................15
5.1.1 【Trigger】Mode ..................................................................................................................................................... 15
5.1.2 【Range】..................................................................................................................................................................16
5.1.3 Measuring【Speed】.............................................................................................................................................17
5.1.4 【Scan】Mode..........................................................................................................................................................17
5.2 Short-circuit Clear Zero...................................................................................................................................................17
5.3 Comparator Setup ............................................................................................................................................................ 18
5.3.1 【Comp】switch.......................................................................................................................................................19
5.3.2 Compare【Mode】................................................................................................................................................. 19
5.3.3 【Lower limit】and【Upper limit】setup........................................................................................................ 19
6. <SYSTEM CONFIG> Page..............................................................................................................................................................21
6.1 <SYSTEM CONFIG> Page............................................................................................................................................... 21
6.1.1 【LANGUAGE】........................................................................................................................................................21

4 AT5220 User’s Guide
6.1.2 [DATE], [TIME] ...........................................................................................................................................................22
6.1.3 【KEY BEEP】Setting ..............................................................................................................................................22
6.1.4 【BAUD] Rate Setup ...............................................................................................................................................22
6.1.5 RS-232 Shake Hand [SHAKE HAND]................................................................................................................. 23
6.2 <SYSTEM INFORMATION>............................................................................................................................................23
7. PLC (Handler) Interface....................................................................................................................................................................25
7.1 Pin Assignment ..................................................................................................................................................................25
7.2 Connection ..........................................................................................................................................................................26
8. Remote Control.................................................................................................................................................................................28
8.1 RS-232C ................................................................................................................................................................................28
8.1.1 RS232C Connection................................................................................................................................................ 28
8.2 Handshake Protocol.........................................................................................................................................................29
8.3 SCPI Language ................................................................................................................................................................... 29
9. SCPI Command Reference................................................................................................................................................................30
9.1 Terminato r ............................................................................................................................................................................30
9.1.1 Terminator Rules......................................................................................................................................................30
9.1.2 Notation Conventions and Definitions............................................................................................................ 30
9.1.3 Command Structure ...............................................................................................................................................31
9.2 Header and Parameters ..................................................................................................................................................31
9.2.1 Header.........................................................................................................................................................................31
9.2.2 Parameter ...................................................................................................................................................................31
9.2.3 Separator .................................................................................................................................................................... 32
9.3 Command Reference ....................................................................................................................................................... 32
9.4 DISPlay SUBSYSTEM.........................................................................................................................................................33
9.4.1 DISPlay:PAGE.............................................................................................................................................................33
9.4.2 DISP:LINE....................................................................................................................................................................33
9.5 FUNCtion SUBSYSTEM ....................................................................................................................................................33
9.5.1 FUNCtion:RANGe.....................................................................................................................................................33
9.5.2 FUNCtion:RATE ......................................................................................................................................................... 34
9.5.3 FUNCtion:SCAN........................................................................................................................................................ 34
9.6 COMParator SUBSYSTEM ............................................................................................................................................... 34
9.6.1 COMParator[:STATe]................................................................................................................................................ 34
9.6.2 COMParator:MODE.................................................................................................................................................34
9.6.3 COMParator:OUTPut ..............................................................................................................................................35
9.6.4 COMParator:RBIN.................................................................................................................................................... 35
9.6.5 COMParator:VBIN....................................................................................................................................................35
9.7 TRIGger SUBSYSTEM........................................................................................................................................................35
9.7.1 TRIGger[:IMMediate]..............................................................................................................................................35
9.7.2 TRIGger:SOURce ......................................................................................................................................................36
9.7.3 TRG ............................................................................................................................................................................... 36
9.8 FETCh? SUBSYSTEM.......................................................................................................................................................... 36
9.9 SYSTem SUBSYSTEM ........................................................................................................................................................36
9.9.1 SYSTem:LANGuage .................................................................................................................................................36
9.9.2 SYSTem:SENDmode ................................................................................................................................................ 37
9.9.3 SYSTem:DATAmode.................................................................................................................................................37
9.10 CORRect SUBSYSTEM ......................................................................................................................................................37

5
Unpacking and Preparation
9.10.1 CORRect:SHORt........................................................................................................................................................37
9.11 IDN? SUBSYSTEM ..............................................................................................................................................................37
10. Specifications...........................................................................................................................................................................38
10.1 Technical Specifications........................................................................................................................................................ 38
10.2 General Specifications...........................................................................................................................................................38
10.3 Dimensions..........................................................................................................................................................................39
Figure Contents
Figure 3-1 Front panel..........................................................................................................................................................................11
Figure 3-2 Rear panel ........................................................................................................................................................................... 11
Figure 3-3 Test terminal for each channel..................................................................................................................................... 12
Figure 4-1 AT5220 <MEAS DISPLAY> page .................................................................................................................................14
Figure 5-1 <Setup> page ................................................................................................................................................................... 15
Figure 5-2 Correct method of short-circuit clear zero..............................................................................................................17
Figure 5-3 <Comp Setup> Page ......................................................................................................................................................18
Figure 6-1 <SYSTEM CONFIG> page.............................................................................................................................................. 21
Figure 6-2 <SYSTEM INFORMATION>page.................................................................................................................................23
Figure 7-1 Pin assignment.................................................................................................................................................................. 25
Figure 7-2 Input terminal schematic diagram（Trig）.............................................................................................................. 27
Figure 7-3 Output terminal schematic diagram .........................................................................................................................27
Figure 8-1 Connector at rear panel .................................................................................................................................................28
Figure 9-1 Command Tree Example ................................................................................................................................................31
Figure 9-2 DISPlay SUBSYSTEM tree...............................................................................................................................................33
Figure 9-3 FUNCtion SUBSYSTEM tree...........................................................................................................................................33
Figure 9-4 COMParator SUBSYSTEM tree .....................................................................................................................................34
Figure 9-5 TRIGger SUBSYSTEM tree.............................................................................................................................................. 35
Figure 9-6 FETCh? SUBSYSTEM tree................................................................................................................................................36
Figure 9-7 SYSTem SUBSYSTEM tree ..............................................................................................................................................36
Figure 9-8 CORRect SUBSYSTEM tree.............................................................................................................................................37
Figure 9-9 IDN? SUBSYSTEM tree .................................................................................................................................................... 37
Table Contents
Table 3-1 Front panel description ....................................................................................................................................................11
Table 5-1 Range......................................................................................................................................................................................16
Table 7-1 Input terminal pin definition .......................................................................................................................................... 25
Table 7-2 Input terminal pin definition .......................................................................................................................................... 26
Table 7-3 VCC pin definition .............................................................................................................................................................. 26
Table 8-1 RS-232 Standard minimum subset...............................................................................................................................28
Table 9-1 Multiplier Mnemonics....................................................................................................................................................... 32

6 AT5220 User’s Guide
1.Unpacking and Preparation
This chapter describes how to set up and start the AT5220.
•Incoming Inspection
•Power Requirements
•Setting up the Fuse
•How to Remove the Handle
•Environmental Requirements
•Cleaning
1.1 Incoming Inspection
After you receive the instrument, carry it out and check during unpacking according to the
following procedures.
WARNING
If the external face of the instrument (such as the cover, front/rear panel, LCD screen,
power switch, and port connectors) appears to have been damaged during transport, do
not turn on the power switch. Otherwise, you may get an electrical shock.
Make sure that the packing box or shock-absorbing material used to package the instrument
has not been damaged.
Referring to <Packing List> in the packing box, check that all packaged items supplied with
the meter have been provided as per the specified optioned.
NOTE
If an abnormality is detected, contact the company and transport the meter to your
nearest Applent Instruments sales or
service office. For inspection by the transport
company, save the packing box, shock-absorbing material, and packaged items as you
received them.
1.2 Power requirements and setting up Fuse
~Line: 220VAC, 50Hz/60Hz
Fuse: 250V 1A Slow Blow
Please use the following fuse type.
UL/CSA type, Slow-Blow, 5×20-mm miniature fuse, 1A, 250 V
When you need a fuse, contact your nearest Applent Instruments sales or service office.
To verify and replace the fuse, remove the power cable and pull out the fuse holder.

7
Unpacking and Preparation
1.3 Environmental Requirements
Set up the AT5220 where the following environmental requirements are satisfied.
Operating Environments
Ensure that the operating environment meets the following requirements.
Temperature: 0°C to 55°C
Temperature range at calibration: 23°C±5°C (<1°C deviation from the temperature when
performing calibration)
Humidity: 15% to 85% at wet bulb temperature ≤40°C (non-condensation) Altitude: 0 to
2,000m
Vibration: Max. 0.5 G, 5 Hz to 500 Hz
1.4 Cleaning
To prevent electrical shock, disconnect the AT5220 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 the AT5220 internally.
WARNING: Don’t Use Organic Solvents (such as alcohol or
gasoline) to clean the
Instrument.
1.5 How to Remove the Handle
A handle kit is attached to the AT5220:

8 AT5220 User’s Guide
Figure 1-1 How to remove the handle
1 Retracted

3 Carrying Position

2 Extended
Remove Handle（Lift the handle perpendicular to the unit while pulling it in the direction of 1.）

9
Overview
2.Overview
This chapter contains general information about AT5220 .The information is organized as
follows Introduction
Main Functions
2.1 Introduction
Thank you for purchasing AT5220 Multi-channel Battery Meter.
AT5220 adopts high-performance 32dgt ARM micro processor to control, 3.5 inches
true-color LCD Chinese and English display and it is easy to operate. It can quickly complete
10 channels battery voltage and internal resistance sorting. Resistance range: 0.01mΩ~3kΩ,
DC voltage range: 0.0001V~60.000V, resistance MAX display: 33000, voltage MAX display:
60000
AT5220 can mixed measure 10 channels of different batteries, each channel can
independently set up comparator, and comparing results of 10 channels resistance and
voltage can be output by Handler interface.
AT5220 is equipped with RS232 interface and Handler interface to apply to remote control,
data acquisition and analysis.
SCPI （Standard Command for Programmable Instrument）to efficiently realize remote
control and data acquisition function.
Reference：

For complete technical details, please refer to charpter “Specifications”
2.2 Main Functions
2.2.1 Range
Resistance：5 ranges，AC resistance range: 0.01mΩ~3kΩ
Voltage：DC voltage range: 0.0001V~60.000V
Manual Range
2.2.2 Measuring Speed
3 types of measuring speed：Slow、Medium、Fast
All channels are turned on, Manual Range:
Slow：9s/20 channels

10 AT5220 User’s Guide
Medium：6s/20 channels
Fast：4s/20 channels
2.2.3 Trigger Mode
Internal、External、Manual and Remote
2.2.4 Basic Accuracy
Slow、Medium：0.5%
Fast：1%
2.2.5 Correction
Short-circuit Clear Zero correction for all ranges.
2.2.6 Comparator Function（Sorting Function）
Each channel can independently set up comparator.
Resistance GD signal or voltage GD signal output independently.
Configurable outpur signal: ROK/VOK/R+VOK。
2.2.7 System Setup
1. Keypad lock function
2. Administrator Accountant Settings
2.2.8 Interface
RS-232 remote control：
Support MAX baud rate 115200bps，compatible with SCPI prootcal，ASCII transmission.
Handler interface
Full opto-isolator, built-in input and output of pull-up resistor.
Support 5V internal and 24V external power source.
Input：Trigger signal
Output：Signals for all sorting results; measurement synchronizing signal（EOC）.

11
Startup
3.Startup
This chapter describes names and functions of the front panel, rear panel, and screen display and
provides the basic procedures for operating AT5220.
Front panel summary
Rear panel summary
Power On/Off
Connect to Device under Test
3.1 Front Panel
3.1.1 Front Panel Description
Figure 3-1 Front panel
2
3
1
456
8
9
7
10
Ta b le 3-1 Front panel description
No.
Description
1
USB Disk Port (USB-Host)
2
Trigger Key
3
Power Switch
4
System Key (Include File, System and Key Lock)
5
Soft Key
6
Menu key
7
Invalid Terminal (Test terminal for all channels is at rear panel )
8
Entry Key
9
Cursor Key
10
LCD Display
3.1.2 Rear Panel
Figure 3-2 Rear panel

12 AT5220 User’s Guide
1. Test terminal
2. RS-232C interface
3. HANDLER interface
4. AC Power Cord Receptacle
3.2 Power ON/OFF
3.2.1 Power ON
Power ON. Power OFF.
AT5220 is ready to be used as soon as the power-up sequence has completed.
However, to achieve the accuracy rating, warm up the instrument for 30 minutes.
3.3 Connect to Device under Test (DUT)
Instrument’s test terminal is at rear panel, please go with rabbet direction and insert test
socket to test port correctly.
Definition of test terminal pin for each channel is as below:
Figure 3-3 Test terminal for each channel

13
Startup
Warning：NO measuring batteries with more than 60VDC, otherwise, it will cause damage
to the instrument.

14 AT5220 User’s Guide
4.[Meas] Page
4.1 <MEAS DISPLAY> Page
Press [Meas] key to enter <MEAS DISPLAY>Page.
<MEAS DISPLAY> page highlighs displaying measuring results, display current sorting
results in small characters.
This page can set up 6 common used functions, including:
•Trigger –trigger setup
•01-10 –channel setup
Figure 4-1 AT5220 <MEAS DISPLAY> page
4.1.1 【Trigger】Mode
4 trigger modes are available for AT5220：
INT (internal), EXT (external), MAN (manual) and BUS (RS-232)
Trigger Mode Description
INT Continuously repeats the measurement cycle.
MAN Performs one cycle of measurement each time you press the [Trig] key.
EXT Performs one cycle of measurement each time a rising pulse is input to
the handler external trigger input pin on the rear panel.
BUS Performs one cycl
e of measurement each time it receives a trigger
command sent via RS-232.
Procedure to set up trigger:
Step 1
Press [Meas] key to enter <MEAS DISPLAY>Page
Step 2 Use cursor keys to select [TRIGGER] field
Step 3 Use function keys to select trigger mode
Function keys Function
INT Automatic Internal trigger
MAN Manual Trigger by pressing [Trig] key
EXT External Trigger Mode
BUS BUS Trigger by RS232 SCPI command

15
[Setup] Page
5.[Setup] Page
This chapter describes: ：
•Measurement setup
•Short-circuit Clear Zero
•Comparator Setup
Press [Setup] key to enter <SETUP>page.
5.1 Measurement Setup
All setting related to measurement is operated in [Setup] page.
In <Setup> page，he Instrument does not display measurement result or comparator result,
but testing is still in progress.
The <SETUP> page includes following setup：
Trigger –trigger mode
Range –measuring range
speed –measuring speed
Scan –scan method
Figure 5-1 <Setup> page
5.1.1 【Trigger】Mode
SCPI command：TRIGger:SOURce {INT,MAN,EXT,BUS}
4 trigger modes are available for AT5220：
INT (internal), EXT (external), MAN (manual) and BUS (RS-232)
Trigger Mode Description

16 AT5220 User’s Guide
INT Continuously repeats the measurement cycle.
MAN Performs one cycle of measurement each time you press the [Trig] key.
EXT Performs one cycle of measurement each time a rising pulse is input to
the handler external trigger input pin on the rear panel.
BUS Performs one cycle of measurement each time it r
eceives a trigger
command sent via RS-232.
Procedure to set up trigger:
Step 1
Press [Meas] key to enter <MEAS DISPLAY>Page
Step 2 Use cursor keys to select [TRIGGER] field
Step 3 Use function keys to select trigger mode
Function keys Function
INT Automatic Internal trigger
MAN Manual Trigger by pressing [Trig] key
EXT External Trigger Mode
BUS BUS Trigger by RS232 SCPI command
5.1.2 【Range】
SCPI command：
FUNCtion:RANGe {<Range NO.>,min,max}
5 ranges are available for AT5220, changes for each range is as below:
AT5220 only use manual range to make measurement:
Ta b le 5-1 Range
Range
NO. Range Range Ability UP DOWN
1 100mΩ29.000mΩ~300.00mΩ

300mΩ

3Ω

30Ω

300Ω


290mΩ

2.9Ω

29Ω

290Ω

2 1Ω290.00mΩ~3.0000Ω
3 10Ω2.9000Ω~30.000Ω
4 100Ω29.000Ω~300.00Ω
5 1kΩ290.00Ω~3.0000kΩ
Procedure to set up Range：
Step 1 Press【Setup】key to enter Setup page；
Step 2 Use cursor keys to select [Range] field；
Step 3 Use function keys to select range
Function keys
Function
Increase + Increase range，range is changed to LOCK
Decrease- Decrease range，range is changed to LOCK

17
[Setup] Page
5.1.3 Measuring【Speed】
SCPI command：FUNCtion:RATE {SLOW,MED,FAST,ULTRA}
3 measuring speed is available for AT5220,（Slow、Medium、Fast）。 The slower the measuring
speed, the more the accuracy, the more stable.
When all channels are turned on, and the range method is manual, the speed is as below：
Slow：4.5s/10 channels
Medium：3s/10 channels
Fast：2s/10 channels
Procedure to set up Speed：
Step 1 Press【Setup】key to enter Setup page；
Step 2 Use cursor keys to select [Speed] field；
Step 3 Use function keys to select speed
Function keys
Function
Slow 4.5s/10 channels
Medium 3s/10 channels
Fast 2s/10 channels
5.1.4 【Scan】Mode
SCPI command：FUNCtion:SCAN {ON,OFF,<channel NO.>}
Users can set loop scan or fixed channel measurement, this can be completed in <MEAS
DISPLAY> page.
Procedure to set up Scan Mode：
Step 1 Press【Setup】key to enter Setup page；
Step 2 Use cursor keys to select [Scan] field；
Step 3 Use function keys to select
Function keys
Function
Scan Multichannel loop test
Single Current channel test
Increase + Change channel number of single channel test
Decrease- Change channel number of single channel test
5.2 Short-circuit Clear Zero
SCPI command：CORRect:SHORt
In order to get high measuring accuracy, it is necessary to do short-circuit clear zero correction to
efficiently counteract the stay resistance in test cable.
When replace the test fixture or test cables, please do short –circle clear zero.
How to connect the test clips before executing short-circle clear.
Figure 5-2 Correct method of short-circuit clear zero

18 AT5220 User’s Guide
Procedure to perform short-circuit clear zero
Step 1 Press【Setup】to enter Setup page
Step 2 Short clamp test clip
Step 3 Use function key to select 【Clear】
Step 4 Press【OK】，instrument starts to perform clear zero
Step 5 Return to Setup page after the process is completed
5.3 Comparator Setup
Press【Setup】key，then press【Comp Setup】to enter < Comp Setup > page
All channels can be set upper limit and lower limit by comparator.
To take full advantage of comparator, instrument adopts built-in Handler interface.
In <Comp> page，users can set：
【Comp】switch
Compare【Mode】setup
【Output】signal setup
Input data of【upper limit】、【 lower limit】for each bin
Figure 5-3 <Comp Setup> Page
Independent Comp Set
Identical Comp Set:

19
[Setup] Page
5.3.1 【Comp】switch
SCPI command：COMParator[:STATe] {ON,OFF,1,0}
Procedure to turn on/off comparator
Step 1 Press 【Meas】or【Setup】to enter correspond page
Step 2 Press 【Comp Setup】key
Step 3 Use cursor keys to select 【Comp】field
Step 4 Use function keys to select
Function keys Function
OFF Comparator is turned off
ON Comparator is turned on
5.3.2 Compare【Mode】
SCPI command：COMParator:MODE {IDENtical,INDEpendent}
2 methods is available for instrument comparator：
Identical setting
Independent setting
Identical setting: comparator upper limit and lower limit for all channels utilize the setting of
CH1
Independent setting: comparator of each channel has independent setting
Procedure to set up compare mode
Step 1 Enter <Comp Setup> page
Step 2 Use cursor keys to select 【Mode】field
Step 3 Use function keys to select
Function keys
Function
Identical
Independent
5.3.3 【Lower limit】and【Upper limit】setup
Command format ：COMParator:rbin <channel NO.1~10>,<resistance lower limit>,<
resistance upper limit>
Command format：COMParator:vbin < channel NO 1~10>,< voltage lower limit>,< voltage
upper limit>
Input direct reading limit value
Step 1
Enter < Comp> page

20 AT5220 User’s Guide
Step 2 Use cursor keys to select【1】【Lower limit】field；
Step 3 Input data
Comparator utilize direct reading value to compare, users need to use function keys to select
unit.
Step 4 Use cursor keys to select【1】【 Upper limit】field；
Step 5 Input data
Step 6 Repeat step 2~5 to complete data input of other bin.