Deleting the Weighing Data, Function Settings

No.

Press and hold

No.

Press and hold

From the front

7. Deleting the Weighing Data

Note: The AD-1688 performs as follows only when connected to a weighing instrument.

Two ways of deleting data are available; deleting the most

9. Function Settings

In the function setting mode, settings of the AD-1688 performance and communication can be changed.

Each function has parameters. By changing the parameter, specify

9.2. Function List

Function	Parameter	Description
Baud rate	Parameter	600, 1200, 2400*, 4800, 9600, 19200 bps

10.Interval Mode

•In the interval mode, the weighing data is stored at a certain interval.

•Available intervals are:

1, 2, 5, 10, 15, 20, 30 seconds / 1, 2, 5, 10, 15, 30 minutes / 1 hour

recent data (or data with the most recent number) or all the data. Use this to delete the incorrect data.

1.Data number display

Connect the AD-1688 to a weighing instrument using the RS-232C cable.

When the data number appears, press and hold the CLEAR key for 2 seconds or more.

2. Selecting a deletion mode.

The “CLR” segment turns on and the most recent data

the performance of the function.

The set parameters are maintained in memory even if the AD-1688 is disconnected from the weighing instrument or personal computer. For easier setting, the AD-1688 Setting Tools is available for downloading from our website.

9.1.Setting Procedure

1.Connect the AD-1688 to a weighing instrument using the RS-232C cable.

2. When the data number appears, press and hold the SET key for 2

Data bit, parity	Parameter	7bit-Even*, 7bit-Odd, 8bit-None
Decimal point (Note1)	Parameter	Dot (.)*, Comma (,)
Number of data on a line	Parameter	1*,2, 3, 4, 5, 6, 7
Buzzer	Parameter Sounds the buzzer*, Does not sound

1.Connect the AD-1688 to a weighing instrument using the RS-232C cable.

2.Select the interval mode (int) for the data storage mode (reC) of the function setting and set the interval time (120 seconds in the example).

Press the CLEAR key to display the data number.

In the interval mode, the mark turns on at the lower right.

SEC

No.

number flashes.

Under the above condition: Release the CLEAR key to

enter the mode to delete the most recent data.

Keep pressing the CLEAR key to display “ALL”. Release the

CLEAR key here to enter the mode to delete all the data.

If the CLEAR key is kept pressed, the display indicates the most recent data number and “ALL” alternately.

Mode to delete the		Mode to delete
most recent data		all the data
No.	Press and hold	No.
	CLR	CLR
Release		Release

3.Deleting the data

Press the SET key to delete the designated data. The display indicates the reduced data number.

If the SET key is not pressed within 5 seconds, the AD-1688 returns to the data number display without deleting the data.

Press		Press
	No.

8.Switching the Displays

8.1.Memory Utilization Rate

When the data number is displayed, press the DISPLAY key to display the memory utilization rate.

Press the DISPLAY key again to display the data number.

Data number display		Memory utilization rate
No.	Press
		%

8.2. Date/Time Display

When the data number is displayed, press the SET key to display the year, date and time.

1. Data number display

No.

Press

2. The display indicates the year and date for 2 seconds each, and then indicates the time.

DATE		DATE

3. Press any key to return to the data number display.

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seconds or more. 3. The function display appears. (Refer to “9.2. Function List”.)

Press the DISPLAY key to select a
function, and press the SET key to
display the parameters.
When the CLEAR key is pressed, or			Press
after 10 seconds of non operation,
the AD-1688 returns to the data
number display.
4. The parameter of the selected
function appears. The current setting			Current setting
has the	mark at the lower right.
The flashing parameter can be
changed.
5. Using the following keys to change the parameter.
DISPLAY (+) key:		Display the parameters one by one.

CLEAR (CANCEL) key: Go to the next function without changes.

SET key:	Confirm the setting and go to the
	next function.

After changes, the parameter and the mark appear for 1 second, and then

the next function appears.

6. Press the CLEAR key to return to the data number display.

No.

Windows Explorer and Excel are registered trademarks of Microsoft Corporation.

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Data storage mode		Parameter	Standard mode (All data)*, Interval mode
		Interval time		When the interval mode is selected
		Interval time
		Parameter	1*,2,5,10,15,20,30,60,120,300,600,900,1200,1800,3600
			SEC		SEC
Date and time data		Parameter	Adds the date and time*, Does not add
DATE			DATE		DATE
SEC			DATE		DATE
SEC			SEC		SEC
Date format	(Note1)	Parameter	YMD*, MDY, DMY
DATE			DATE	DATE	DATE

(Note1) Set these functions according to the settings of the personal computer used.

: Factory setting

About the number of data on a line and the interval mode, refer to the following sections.

9.3. Number of Data on a Line

This function is useful for storing data with different contents or items at the same time, for example, ID and number of samples in a counting scale. When the number is set, <CR>s of up to the setting are converted into commas. Once the number of <CR>s is reached the setting, a new line starts.

For example, the ID, number of samples and weight are sent individually. Using this function, these three data items can be placed on one line as shown in (B).

Example data received to transmit to Excel

ID,000123<CR><LF>

QT,+00000056 PC<CR><LF>

ST,+0003.102 g<CR><LF>

(A)When the number of data on a line is 1, the ID, number of samples and weight are stored on separate lines.

(B)When the number of data on a line is 3, the ID, number of samples and weight are stored on one line.

ID Number of samples Weight

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3.Set the data output mode of the weighing instrument to the stream mode. For details on the setting procedure, refer to the instruction manual of the weighing instrument.

4. Press and hold the DISPLAY key for 2	No.

seconds or more. The AD-1688 starts to store the data at a set interval. The mark flashes while the data is being stored.

5. To stop storing the data, press and hold

No.

the DISPLAY key.

The mark stops flashing and turns on.

6.Remove the AD-1688 from the weighing instrument.

7.Connect the AD-1688 to a personal computer and read the stored data.

11. Error Display

Error	Description	Remedy
	Data full.
	No more storage is	Delete the data.
	available.
	The voltage that is	Use a longer interval
	supplied from the	Use a longer interval
Errors 1 to 3	weighing instrument	time to store the data.
	is low.
	The baud rate and	Set the same values for
	parity of the received	Set the same values for
	parity of the received	both the AD-1688 and
	data is different from	both the AD-1688 and
Error 7	data is different from	the weighing instrument.
Error 7	the set values.	the weighing instrument.
	the set values.
	Internal clock error
	such as low backup	Ask for repair.
Error 9	battery

12. Specifications
Devices	Balances and scales with an RS-232C
to be connected	connector manufactured by A&D
	(Visit our website to determine
	which devices are applicable.)
Number of data	Approximately 5000 data in the
to be stored	standard format (15 characters in 1
	data set).
Clock error	±1 minute / month
Applicable OS	Windows 2000 / XP / Vista
Dedicated power supply	Not required
	Power is supplied from a weighing
	instrument or a personal computer.
Operating temperature	5°C to 40°C
Operating humidity	85%RH or less, no condensation
Dimensions	55x103x16.5 mm
Mass	Approximately 60 g
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AD-1688 specifications

The A&D AD-1688 is a sophisticated analytical balance that has garnered attention for its accuracy, reliability, and user-friendly interface. This high-precision weighing instrument is designed for laboratories, educational institutions, and various industrial applications where precise measurements are critical.

One of the main features of the A&D AD-1688 is its incredible weighing capacity. With the ability to measure up to 200 grams, this balance provides exceptional accuracy with a readability of 0.01 grams. This level of precision is essential for tasks requiring meticulous measurement, ensuring that users can trust the data they obtain.

The AD-1688 incorporates advanced technologies that enhance its performance. One notable aspect is the use of a high-resolution load cell, which improves the overall accuracy and stability of the readings. The balance also features a unique automatic calibration function, allowing users to ensure that the device maintains its precision over time. Calibration can be performed easily using internal weights, minimizing the risk of human error.

In addition to its accuracy, the A&D AD-1688 includes several characteristics that enhance user convenience. The large, backlit LCD display makes it easy to read measurements, even in low-light conditions. Furthermore, the intuitive control panel provides simple navigation through its various functions, including tare, unit conversion, and data logging.

Another significant feature is the balance's communication capabilities. The AD-1688 can be easily connected to a PC or external printer, allowing for seamless data transfer and record-keeping. This connectivity is particularly beneficial for laboratories that require comprehensive documentation of their measurements for compliance and quality assurance purposes.

Durability is also a strong suit of the A&D AD-1688. Constructed with high-quality materials, the balance is designed to withstand the rigors of everyday use in busy environments. Its compact and sleek design ensures that it fits well on laboratory benches while maximizing available workspace.

In summary, the A&D AD-1688 stands out as a reliable and highly accurate analytical balance, equipped with advanced technologies that facilitate precise measurements. With its robust features and user-friendly design, it is an excellent choice for professionals seeking an efficient and dependable weighing solution. Whether for research, education, or industrial purposes, the AD-1688 meets the demanding needs of users with efficiency and accuracy.