A&D AD-1688 Merkblatt

 

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USB extension cable 

 
 
 

 

RS-232C cable   

with a D-Sub 9-pin connector

 
 

RS-232C cable   

with a D-Sub 25-pin connector

 
 
RS-232C cable   

with a 7-pin DIN connector

 

USB connector

 

RS-232C 

connector

Display 

Cap

Instruction Manual 

 
 
 
 
 
 
 
 

 
 
© 2009 A&D Company, Limited. All rights reserved. 

No part of this publication may be reproduced, 
transmitted, transcribed, or translated into any language 
in any form by any means without the written permission 
of A&D Company, Limited. 

The contents of this manual and the specifications of the 
instrument covered by this manual are subject to change 
for improvement without notice.

 

 

 

 

 

1WMPD4001957B 

 

 

 

 

 

Using the AD-1688 

When operating this instrument, be sure to observe the following: 

 

Caution

 

 

 

•   

Do not open the case to repair the AD-1688. Only qualified 
personnel can do that. Attempting repairs yourself may 
cause damage to the AD-1688. Damage caused by 
attempting to do the repair yourself will void the warranty

. 

 
 

Precautions on Usage 

 

Caution 

 

•   

With the cap attached over the connectors, the 
AD-1688 is protected against water splashing 
(equivalent to IP65). Please note that it will not endure 
immersion in water or high pressure running water. 

 

•   

The AD-1688 is supplied power and is turned on only 
when it is connected to a weighing instrument or the 
USB of a personal computer.

 

 
 

1. Introduction 

This manual describes how the AD-1688 works and how to 
get the most out of it in terms of performance. Please read 
this manual completely before using the AD-1688. 
 

2. Unpacking 

When unpacking, confirm that everything is contained.

 

• 

AD-1688 Weighing Data Logger 

• 

USB extension cable (0.5 m) 

• 

RS-232C cable with a D-Sub 9-pin connector (1 m)  : AX-KO3571-100 

• 

RS-232C cable with a D-Sub 25-pin connector (1 m) : AX-KO3572-100 

• 

RS-232C cable with a 7-pin DIN connector (1 m) 

: AX-KO3573-100 

• 

Instruction manual (this document)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 

When the AD-1688 is in use, the cap 

can be attached on the bottom. 

 
 
 
 

Each side has an opening. Use the 
openings as follows. 

 

A:  Attach a strap to carry. 
B:  Connect the cap and the main unit so 

that the cap will not be lost. 

 
 
 

3. Features 

• When connected to the RS-232C interface of a weighing 

instrument, the AD-1688 can store the data that the weighing 
instrument outputs. Thus, storing weighing data is possible in an 
environment where a personal computer can not be used. 

•  The AD-1688 has an internal clock. This allows the date and 

time to be stored, along with the weighing data. 

•  The maximum data to be stored is approximately 5000, using the 

A&D standard format (15 characters in 1 data set). 

•  The stored data can be read to a personal computer using USB. 

As the AD-1688 is recognized as USB memory, special software 
is not required to read the data.   

•  The data is stored in CSV format and can be used easily by 

software such as EXCEL. 

• As power is supplied to the AD-1688 from the weighing 

instrument or USB, no special power source is required. 

 
 

4. Key Operations 

Key 

When pressed 

(To press and 

release immediately) 

When pressed and held 

(To keep pressing 

for 2 seconds or more) 

SET 

Displays the date and time.

  Displays the function 

setting menus. 

DISPLAY

(+) 

Switches between the 

display of data number and 

memory utilization rate.

 

Starts or stops data storage 

at a set interval.

 

(Only in the interval mode)

 

CLEAR 

(CANCEL)

None

 

Enters the data deletion 

mode.

 

 
 

5. Setting the Date/Time 

 

Change the date and time as follows. 
For easier setting, the AD-1688 Setting Tools is available for 
downloading from our website. 

 
1. Connect the AD-1688 to a weighing instrument using the 

RS-232C cable. 

 
 
2.  Refer to “8.2. Date/Time Display” to display the date and time. 

When the year, date or time is displayed, press and hold the 
SET key for 2 seconds or more. The display flashes and the 
AD-1688 enters the setting mode. 

  Using the following keys to set the date and time. 

DISPLAY (+) key:   

Increase the value by one 

CLEAR (CANCEL) key:  Decrease the value by one 

When the above keys are held pressed, the value is increased 
or decreased continuously. 

SET key:   

Confirm the setting and go to the next item. 

3.  After setting the year, month, day, hour and minute, press the 

SET key to return to the data number display.

 

 
 

6. Storing the Weighing Data 

6.1. Basic Operation 

1.  Connect the AD-1688 to a weighing instrument using the 

RS-232C cable. 

  When the cable is connected, power 

is supplied to the AD-1688 and the 
weighing data number appears. 

2.  Press the PRINT key of the weighing instrument to 

transmit the data to the AD-1688.   

  When the data is stored in the AD-1688, a 

buzzer sounds and the data number increases. 

3.  Repeat step 2 as necessary.   

4.  When the number of data necessary is stored, 

disconnect the AD-1688 from the weighing 
instrument. 
The display of the AD-1688 turns off. 

5. Connect the AD-1688 to the 

USB port of a personal computer.   
Use the USB extension cable as 
necessary. 
When connected for the first time, 
a driver is installed automatically. 

 

The AD-1688 is recognized as a removable disk. 
No special software is required. 

 
 
 
 
 
 
 
 
 
 
 
 
 
6.  Open the removable disk using Windows explorer. 

The data is stored in a file named “AD-1688.csv”. 
Copy this file into the personal computer to use. 

 
 
 
 
 
 
 
 
  An example of the data opened using EXCEL is shown below. 
 
 
 
 
 
 
 
 

 
7.   After copied, delete the “AD-1688.csv” file from the 

AD-1688 if necessary. Deleting unnecessary data 
individually is also possible. 

 

 
 

AD-1688 

A

B

Continued to the reverse side

          

Personal 

computer

          

Weighing 

instrument