Rice Lake EK-I Series Toploader, EW-I Series Toploader, EW-i Series, EK-I Series, EK-I Series, A&D Weighing Toploader Balance Manual
x
WM:PD4000465
© 2002 A&D Company Ltd. 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 Ltd.
The contents of this manual and the specifications of the instrument covered by this
manual are subject to change for improvement without notice.
COMPLIANCE WITH FCC RULES
Please note that this equipment generates, uses and can radiate radio frequency
energy. This equipment has been tested and has been found to comply with the limits
of Class A computing device pursuant to Subpart J of Part 15 of FCC rules. These
rules are designed to provide reasonable protection against interference when the
equipment is operated in a commercial environment. If this unit is operated in a
residential area it may cause some interference and under these circumstances the
user would be required to take, at his own expense, whatever measures are
necessary to eliminate the interference.
(FCC = Federal Communications Commission in the U.S.A.)
Note
Under some ambient electromagnetic conditions, this equipment may be affected by
the electromagnetic interference.
This is a hazard alert mark.
CONTENTS
1. INTRODUCTION ..........................................................................................................................3
2. UNPACKING.................................................................................................................................3
3. PART NAMES AND FUNCTIONS.............................................................................................4
4. SETTING UP.................................................................................................................................5
4-1. Setting up your balance.............................................................................................................. 5
4-2. Power source.............................................................................................................................. 5
5. OPERATION..................................................................................................................................6
5-1. Turn the power ON and OFF....................................................................................................... 6
5-2. LCD backlight ............................................................................................................................. 6
5-3. Units ........................................................................................................................................... 7
5-4. Selecting a weighing unit ............................................................................................................ 8
5-5. Basic operation ........................................................................................................................... 8
5-6. Weighing range for the EW -i series............................................................................................. 9
5-7. Counting mode (pcs)................................................................................................................. 10
5-8. Percent mode (%) ......................................................................................................................11
6. COMPARATOR...........................................................................................................................12
6-1. Setting example........................................................................................................................ 12
7. CALIBRATION............................................................................................................................14
7-1. Calibration using a weight ......................................................................................................... 14
7-2. Gravi ty acceleration correction .................................................................................................. 15
8. FUNCTIONS................................................................................................................................16
8-1. Key operation ............................................................................................................................ 17
8-2. Entering the function setting mode............................................................................................ 17
8-3. Setting example........................................................................................................................ 17
8-4. Storing weighing units............................................................................................................... 18
8-5. Function list .............................................................................................................................. 19
9. RS-232C SERIAL INTERFACE...............................................................................................21
9-1. Interface specifications.............................................................................................................. 22
9-2. Data format ............................................................................................................................... 22
9-3. Data output mode ..................................................................................................................... 23
9-4. Command mode....................................................................................................................... 24
10. ID NUMBER AND GLP...........................................................................................................24
10-1. Setting the ID number............................................................................................................. 25
10-2. Output example...................................................................................................................... 25
1
10-3. Output procedure for the “Calibration report”........................................................................... 27
10-4. Output procedure for the “Calibration test report” .................................................................... 28
10-5. Output procedure for the “Start block” and “End block”............................................................ 30
11. OPTIONS...................................................................................................................................31
11-1. OP-04 Comparator relay output and buzzer ............................................................................ 32
11-2. OP-07 Underhook assembly ................................................................................................... 33
11-3. OP-09 Rechargeable battery pack (Ni-MH) ............................................................................. 33
11-4. OP-12 Carrying case............................................................................................................... 34
12. MAINTENANCE.......................................................................................................................34
12-1. Notes on maintenance ............................................................................................................ 34
12-2 Error codes .............................................................................................................................. 35
13. SPECIFICATIONS....................................................................................................................36
13-1. EK-i series .............................................................................................................................. 36
13-2. EW-i series ............................................................................................................................. 37
13-3. Other weighing units ............................................................................................................... 38
13-4. Dimensions ............................................................................................................................. 39
GRAVITY ACCELERATION MAP................................................................................................39
2
1. INTRODUCTION
This manual describes how this balance works and how to get the most out of
it in terms of performance.
EK-i and EW-i series balances have the following features:
q The EK-i series are high resolution type electronic balances having a resolution of
1/6,000 ~ 1/30,000.
q The EW-i series are triple range balances and each range has a resolution of
1/3,000.
q Both series have similar functions like a counting function, % function and a
comparator function.
q The backlight LCD will help with use in a dimly lighted place.
q The standard RS-232C serial interface can be connected with a printer or
personal computer.
q Using a serial interface, Good Laboratory Practice (GLP) data can be obtained.
q With the optional rechargeable battery pack (OP -09), the balance can be used for
cordless operation.
2. UNPACKING
When unpacking, check whether all of the following items are included:
3
3. PART NAMES AND FUNCTIONS
Held down to enter the function
Changes the weighing range
Enters the sample unit weight
Outputs the weight value to
Turns the power on or off.
setting mode.
Weighing mode (EW-i only):
printer.
Switches the weighing unit
(the weighing mode).
4
(when rng 0 is selected).
pcs mode:
storing mode.
% mode:
Enters the 100% weight
storing mode.
Clears the display to zero.
4. SETTING UP
4-1. Setting up your balance
1. Place the weighing pan on the main unit as shown on the previous page.
2. Adjust the level of the balance using the leveling feet. Use the spirit level to confirm.
The bubble should be in the center of the circle.
3. Calibrate your balance before use. (See “7. CALIBRATION ”)
Balance location
To measure correctly, to keep the balance in good condition, and to prevent hazards,
observe the following:
q Do not install the balance in locations that are subject to excessive dust, breezes,
vibration, large temperature fluctuations, condensation, or that may have
magnetic fields.
q Do not install the balance on a surface that is soft or that may cause the balance
level to shift.
q Do not install the balance in direct sunshine.
q Do not install the balance near heaters or air conditioners.
q Do not use an unstable AC power source.
q Do not install the balance in a place where combustible or corrosive gases may exist.
q Allow the balance to reach equilibrium with the ambient temperature before use.
q Switch the power ON at least half an hour before use so that the balance can
warm up.
q When the balance is installed for the first time, or the balance has been moved,
carry out calibration as described in “7. CALIBRATION.”
4-2. Power source
For the power source, the AC adapter or the rechargeable battery pack (OP-09:
Optional item) is available.
When using the AC adapter
Use a stable power source. To use the AC adapter, insert the AC adapter plug into the
AC adapter jack on the EK/EW-i.
When using the rechargeable battery pack (OP-09)
Insert the rechargeable battery pack into the main unit.
The balance can be used continuously for about 9 hours using the battery pack.
qq If “Lb0” is displayed when using the battery pack, immediately stop
using it, and recharge the battery pack or use the AC adapter.
qq See “11-3 OP-09 Rechargeable battery pack”, for instructions to
install and charge the battery pack.
qq Be sure to charge the battery pack before using it for the first time.
5
5. OPERATION
5-1. Turn the power ON and OFF
1. Press the ON/OFF key to turn the power ON.
All of the symbols are displayed as shown above.
(About units: Only the units available will be displayed.)
The display turns off except for a weighing unit and the decimal point.
The balance waits for the weighing data to become stable, and zero will be
displayed with the ZERO mark (power -on zero).
The range for power-on zero is within ±10% of the weighing capacity around the
calibrated zero point.
If the power is switched ON while there is a load beyond this range, the balance will
be tared to zero and the NET mark and the ZERO mark turn on.
2. Pressing the ON/OFF key again, and the power will be switched OFF.
qq Auto-power off function
It is possible to have the power automatically switched OFF, if zero is
displayed for approximately 5 minutes. See “8-5. Function list” and
set the function “poffpoff ”.
5-2. LCD backlight
The LCD backlight will turn on when the weight value changes more than 4 display
digits or any key operation is done. When the weight data becomes and stays stable
for some moment, the backlight will automatically turn off. There is also a setting that
the backlight is always on or off. For details, see the function setting “ltup” of
“Function list”.
6
5-3. Units
Gram
Counting mode
Percent mode
Ounce (avoir)
Pound
Troy ounce
Metric carat
Momme
Pennyweight
Grain
Tael
The most common unit of weight used around the world is the gram, but there is often
a need to shift to alte rnative units specific to the country where the balance is used or
to select modes such as counting or percent.
The units and the order they appear in the display are as follows:
Among the units, those available for the user have been set at the factory before
shipping.
The unit can be selected in the function setting mode. The order of the units available
is the same as above, while skipping the units that are not available.
Some units are not available for higher or lower capacity models. For details, see “13.
SPECIFICATIONS”
qq Note
It is possible to store only the units that will be actually used from
the units available. It is also possible to specify the display unit that
will be shown first when the power is switched ON. For details, see
“8-4. Storing weighing units”.
Conversion table
Units Name Conversion to gram
oz Ounce (avoir) 28.349523125 g
lb Pound (UK) 453.59237 g
ozt Troy ounce 31.1034768 g
ct Metric carat 0.2 g
mom momme 3.75 g
dwt Pennyweight 1.55517384 g
GN Grain (UK) 0.06479891 g
tl tael (Hong Kong general, Singapore) 37.7994 g
qq Note
The unit “tl (tael)” is for special versions only.
7
5-4. Selecting a weighing unit
Container
Weighing pan
NET
Each pressing switches the
units available in the order
ribed on the previous
NET
Press the MODE key to select a unit.
The following sections are a description of the
three common units: g (gram mode), pcs (counting
mode), and % (percent mode).
5-5. Basic operation
1. Select a weighing unit.
2. When the display doesn’t show zero, press the
RE-ZERO key to set the display to zero.
3. When using a tare (container), place the
container on the weighing pan, and press the
RE-ZERO key to set the display to zero.
4. Place the object to be weighed on the pan or in
the container.
Wait for the stability mark ( ¡ ) to be displayed
and read the value.
5. Remove the object from the pan.
qq Note
desc
page.
ZERO
ZERO
0.0
0.0
Stability mark
The RE-ZERO key will zero the balance if
the weight is within ±2% of the weighing
capacity around the power-on zero point.
The ZERO mark turns on. When the
weight exceeds +2% of the weighing
capacity, it will be subtracted to zero as a
tare weight. In this case the ZERO and NET
marks turn on.
Precautions during operation
qq Make sure that the stability mark is on whenever reading or storing a value.
qq Do not press the keys with a sharp object such as a pencil.
qq Do not apply a shock or a load to the pan that is beyond the weighing
capacity.
qq Keep the balance free from foreign objects such as dust or liquid.
qq Calibrate the balance periodically to keep weighing accuracy. (See ”7.
CALIBRATION”.)
8
150.3
Stability mark
5-6. Weighing range for the EW -i series
q The EW-i series have three weighing ranges, and the display shows which range
the weight value belongs to with the mark R1, R2 or R3.
q There is a function setting to select how the weighing range changes.
q Select from automatic range (rng 1 ), manual range (rng 0) or fixed range (rng 2
to 4).
Operation
Function setting Operation
Automatic range
q When the weight value exceeds the maximum value of
the range, the weighing range changes automatically
from a lower to a higher weighing range.
q When there is nothing on the weighing pan and the
rng 1
display shows zero with the ZERO mark, the weighing
range changes from a higher to the lowest range.
q When the RE-ZERO key is pressed in a higher range,
the balance will be tared and zeroed and the weighing
range becomes the lowest range.
Manual range
q Press the SAMPLE key when the display shows a
weight value (neither counting nor % display). The
weighing range changes to a higher range at any load.
q Press the SAMPLE key to change from a higher to the
lowest range, when there is nothing on the weighing pan
and the display shows zero with the ZERO mark.
rng 0
rng 2 to 4
q When the RE-ZERO key is pressed in a higher range,
the balance will be tared and zeroed and the weighing
range becomes the lowest range. If the weight of the
object is not more than 2% of the weighing capacity, the
1RE-ZERO key doesn’t tare, but zeroes the balance and
the weighing range doesn ’t change.
Press the SAMPLE key to change the weighing range
at zero display.
Fixed range
q The weighing range is fixed. Set the function to the
weighing range according to the purpose.
9
5-7. Counting mode (pcs)
Container
Weighing pan
ACAI
ACAI mark
Samples
Each pressing
Confirm the display
To store
Determines the number of objects in a sample. Calculates the reading, using the basic
sample unit weight, and determines how many pieces are contained.
Selecting the counting mode
Storing the sample unit
Counting the objects
Counting mode using the ACAI function
10
1. Press the MODE key to select .
( :pieces)
2. Press the SAMPLE key to enter the sample
unit weight storing mode.
3. To select the number of samples, press the
SAMPLE key. It may be set to 5, 10, 25, 50, or
100.
4. Place a tare container on the weighing pan, and
press the RE-ZERO key. Confirm that the
right side of the number of samples shows zero.
5. Place the number of samples specified on the
pan. In this example, 25 pieces.
6. Press the PRINT key to calculate and store
the unit weight. Remove the sample. The
balance is set to count objects with this unit
weight.
7. Place the objects to be counted on the pan.
ACAITM (Automatic Counting Accuracy
Improvement) is a function that improves the
accuracy of the unit weight by increasing the
number of samples as the counting process
proceeds.
8. If a few more samples are added, the ACAI
mark is displayed. (To prevent an error, add
three or more. The ACAI mark will not be
displayed if overloaded.)
0
10 -
25 -
ZERO
25 0
25
25
switches the
number of
samples.
(25 pcs)
To store
Object to be
Weighing pan
Sample
9. The balance re-calculates the unit weight while the ACAI mark is blinking. Do not
touch the balance or samples on the pan until the ACAI mark turns off.
10. Counting accuracy is improved when the ACAI mark turns off. Each time the above
operation is performed, a more accurate unit weight will be obtained. There is no
definite upper limit of ACAI range for the number of samples exceeding 100. Try to
add the similar number of samples as displayed.
5-8. Percent mode (%)
Displays the weighing value in percentage compared to the reference (100%) weight.
Selecting the percent mode
1. Press the MODE key to select %. (%:percent)
Storing the reference (100%) weight
2. Press the SAMPLE key to enter the
reference weight storing mode.
3. Press the RE-ZERO key to display 100 0%.
4. Place the sample to be set as the reference
weight on the pan.
5. Press the PRINT key to store the reference
weight. Remove the sample.
Reading the percentage
6. Place the object to be compared to the
reference weight on the pan. The displayed
percentage is based on 100% of the reference
weight.
11
ZERO
0.0
100 -
100 0
corresponding
to the 100%
weight
100.0
compared
75.8
%
%
%
%
%
6. COMPARATOR
Press and hold
Press
Press
To store
The results of the comparison are indicated by HI, OK or LO on the display.
The comparison is as follows:
LO < Lower limit value ≤ OK ≤ Upper limit value < HI
Operating conditions (see the function setting “Cp”):
The upper limit and lower limit numerical values are common to each of the weighing,
counting and percent mode. The example for EK-1200i/2000i/3000i is as follows.
6-1. Setting example
This example will be “Compares plus data greater than
+4d”.
Selecting a comparison mode
1. Press and h old the SAMPLE key to display
2. Press the PRINT key, then the balance displays
3. Press the SAMPLE key several times to display
4. Press the RE-ZERO key several times to display
5. Press the PRINT key to store the settings.
q No comparison (comparator function disabled).
q Compares all data.
q Compares all stable data.
q Compares plus data greater than +4d.
q Compares stable plus data greater than +4d.
q Compares all data greater than +4d or less than -4d.
q Compares stable data greater than +4d or less than -4d.
d = the smallest display division
Upper limit value “001010”: “101.0g” “1010pcs” “101.0%”
Lower limit value “000990”: “99.0g” “990pcs” “99.0%”
func .
(If the comparison mode is already set, press the
SAMPLE key to go to “Entering the upper and
lower limit values”.)
poff X .
Cp X .
Cp 3 .
Cp Hi appears after end .
func
poff 0
several times
Cp 0
several times
Cp 3
12
Set using the
To store
Returns to
Set using the
To store
Entering the upper and lower limit values
6. With Cp Hi displayed, press the PRINT key.
Enter the upper limit value using the following keys.
SAMPLE key To select the digit blinking to
change.
RE-ZERO key To set the value of the digit
selected. Hold down the key to
switch the sign “+” and “-“.
(“N” designates a negative
value.)
PRINT key To store the value and proceed
to the next step.
MODE key To cancel the value and proceed
to the next step.
7. With Cp lo displayed, press the PRINT key.
Enter the lower limit value using the following keys.
SAMPLE key To select the digit blinking to
change.
RE-ZERO key To set the value of the digit
selected. Hold down the key to
switch the sign “+” and “-“ (see
step 6).
PRINT key To store the value and proceed
to the next step.
MODE key To cancel the value and proceed
to the next step.
8. Press the PRINT key. Unit appears after
end .
9. Press the MODE key to return to the weighing
mode.
Cp Hi
HI
000000
relevant keys
HI
001234
Cp lo
LO
000000
relevant keys
LO
001230
end
Unit
the weighing mode
13
7. CALIBRATION
Press and hold
Set the weight using
Release
This function adjusts the balance for accurate weighing.
Perform a calibration in the following cases.
q When the balance is first used.
q When the balance has been moved.
q When the ambient environment has changed.
q For regular calibration.
7-1. Calibration using a weight
1. Warm up the balance for at least half an hour with
nothing on the pan.
2. Press and hold the calibration (CAL) switch until
Cal appears, and release the switch.
3. The balance displays Cal 0 .
To change the calibration weight value, proceed to
step 4.
To use the calibration weight value in the balance
memory, proceed to step 5.
4. Press the SAMPLE key. The display shows the
calibration weight value in “gram” that is stored in the
balance. Use the following keys to change the value.
SAMPLE key To select the digit blinking to
change.
RE-ZERO key To set the value of the digit
selected.
PRINT key To store the value and return to
step 3.
MODE key To cancel the value and return to
step 3.
14
the CAL switch.
Cal
the CAL switch.
Cal 0
01200.0
the relevant keys.
Cal 0
5. At step 3, pressing the PRINT key weighs the zero-
Weighing pan
With nothing
To store
To store
Calibration
point value. Do not touch the pan during weighing.
6. Place the calibration weight with the same value as
displayed on the pan. Press the PRINT key to
weigh it. Do not touch the pan during weighing.
7. end appears.
Remove the weight from the pan, and press the CAL
switch or MODE key to return to the weighing mode.
qq Note
The value set in step 4 is stored in memory even after the power is
switched off.
on the pan
Cal 0
1000.0
weight
1000.0
end
If the balance is to be moved to other places, set the gravity
acceleration value of the area where the calibration using a weight is
to be done, and calibrate the balance according to the procedure
above. See the next section to set the value.
7-2. Gravity acceleration correction
15
When the balance is first used or has been moved to a different place, it should be
Returns to
To store
Release
Set the value using
Press and hold
calibrated using a calibration weight.
But if the calibration weight cannot be prepared, the gravity acceleration correction will
compensate the balance. Change the gravity acceleration value of the balance to the
value of the area where the balance will be used. See the gravity acceleration map
appended to the end of this manual.
qq Note
Gravity acceleration correction is not required when the balance is
calibrated using a calibration weight at the place where the balance
is to be used.
1. Press and hold the calibration (CAL) switch until Cal
appears, and release the switch.
2. The balance displays Cal 0 .
3. Press the RE-ZERO key.
The display shows the gravity acceleration value
stored in the balance.
Use the following keys to change the value.
SAMPLE key To select the digit blinking to
change.
RE-ZERO key To set the value of the digit
selected.
PRINT key To store the value and return to
step 2.
MODE key To cancel the value and return to
step 2.
4. After setting the value, press the PRINT key.
Cal 0 is displayed again.
5. If it is necessary to calibrate the balance using a
calibration weight, go to step 4 of 7-1.
To finish the setting, press MODE key.
6. end appears and the balance returns to the
weighing mode.
the CAL switch.
Cal
the CAL switch.
Cal 0
9.7980
the relevant keys.
Cal 0
the weighing mode
16
8. FUNCTIONS
8-1. Key operation
Cancels the operation and turns off the
In the weighing mode, press and hold the
ores the settings per class and goes to
Cancels the operation, and goes to the next
Press and hold
Each pressing
•
8-2. Entering the function setting mode
In the weighing mode, press and hold the
SAMPLE key to enter the function setting mode and
display func . Each time the SAMPLE
key is pressed, the class appears one after another.
Once the class is selected, the set items are
available for selection. (See “Function list”.)
8-3. Setting example
To set auto power-off function to “Enabled”, and the ACAI function to “Disabled”.
balance.
Item key
Selects a class and an item.
key to enter the function setting mode.
Enter key
Proceeds to the selected class.
St
the next class.
Parameter key
Selects a parameter.
Cancel key
class or returns to the weighing mode.
func
switches the
class
Cp Hi
•
•
Set using the
relevant keys
17
Press and hold
Each pressing
parameter
To confirm
To store
Each pressing
parameter
Returns to
8-4. Storing weighing units
18
1. Press and hold the SAMPLE key to display
func .
2. Press the PRINT key. The balance displays
poff 0 .
3. Press the RE-ZERO key to display poff 1 .
4. Press the SAMPLE key several times to d isplay
aCai 1 .
5. Press the RE-ZERO key to select aCai 0 .
6. Press the PRINT key to store the parameters.
Cp Hi appears after end .
7. Press the MODE key to return to the weighing
mode.
It is possible to store the weighing units that will be actually used from the units
available. For the units available, see “5-3. Units”
func
poff 0
switches the
poff 1
aCai 1
switches the
aCai 0
end
Cp Hi
the weighing mode
Select and store the weighing units as described below:
Automatically
Press and hold
To store
Returns to
Press
several times
Each pressing switches
To confirm
1. Press and hold the SAMPLE key to display
func .
2. Press the SAMPLE key several times to display
Unit .
3. Press the PRINT key.
4. Press the SAMPLE key to select a weighing unit.
5. Press the RE-ZERO key to store the weighing unit.
6. Repeat steps 4. and 5. to store all weighing units to be
used.
7. Press the PRINT key.
id appears after end .
8. Press the MODE key to return to the weighing mode.
qq Note
When the balance is switched on, it starts with
the unit that was stored first at step 5.
8-5. Function list
Class Item
funcfunc poffpoff
Param-
eter
w
00 Auto power-off disabled
func
Unit
Unit
the units available in the
order described on 5-3.
Unit
end
id
the weighing mode
Description
19
Auto power-off
rngrng
Range
11 Auto power-off enabled
00 Manual range change
w
11 Automatic range change
22 Fixed to the lowest range
power off
Range change
setting for EW-i
series
33 Fixed to the middle range
44 Fixed to the highest range
CondCond
Response
00 Fast / sensitive
11
w
22
Software filtering
33
44 Slow / stable
stst --bb
Stability band
width
Zero tracking
pntpnt
Decimal point
CpCp
Comparator mode
00 Stable when with in ± 0.5d/0.5s
w
11 Stable when within ± 1d/0.5s
22 Stable when within ± 2d/0.5s
00 Disabled trctrc
w
11 Enabled
w
00
11
w
00 Comparator disabled
Point (.)
Comma (,)
11 Compares all data
22 Compares all stable data
33 Compares plus data > +4d
Conditions to
turn on the
stability mark
Tracking zero
shift
Decimal separator
Conditions to
compare.
d = the minimum
display division
44 Compare stable plus data > +4d
55 Compares data > +4d or < -4d
Compares stable data > +4d or < -4d
Buzzer sounds
according to
the comparator
results
bepbep
Buzzer output
66
w
00 Buzzer does not sound.
11 Buzzer sounds at LO.
22 Buzzer sounds at OK.
33 Buzzer sounds at OK and LO.
44 Buzzer sounds at HI.
55 Buzzer sounds at HI and LO.
66 Buzzer sounds at HI and OK.
77 Buzzer sounds at HI, OK and LO.
prtprt
Data output
mode
Data output pause
infoinfo
GLP output
00 Command and stream modes
w
11 Command and PRINT key
22
33
w
00 No pause (general equipment) pUsepUse
Command, PRINT key and auto-print A
Command, PRINT key and auto-print B
11 1.6 seconds (for AD-8121)
w
00 No output
11 AD-8121 format
Auto-print A:
+ data
Auto-print B:
+/- data
Interval between
continuous data
GLP
output format
22 General format
bpsbps
Baud rate
w
00 2400 bps
11 4800 bps
22 9600 bps
w Factory setting
Class Item
funcfunc
btprbtpr
Data and parity
Param-
eter
w
00 7 bits, even parity
11 7 bits, odd parity
Description
22 8 bits, non parity
aCaiaCai 00 ACAI disabled
20
If “0” is set,
first when entered
into the unit weight
To control how the
operation will turn
4. Storing
CpHiCpHi
CploCplo
UnitUnit
idid
w Factory setting
(*)
ACAI function
UminUmin
Minimum unit
weight
smplsmpl
Sample number
w
11 ACAI enabled
w
00 1 d
11 1/8 d
22 total sample weight ≥5d(*)
w
00 10 pcs
11 25 pcs
no additional samples
required.
d = the minimum
display division
The number of
samples shown
22 50 pcs
33 100 pcs
storing mode
44 5 pcs
ldinldin Not used (settings are not important)
ltUpltUp
LCD Backlight
control
00 Always off
11 Turns off after 3 seconds
22 Turns off after 10 seconds
w
33 Turns off after 30 seconds
44 Turns off after 60 seconds
LCD backlight
turns off. Weight
change or key
the backlight on.
55 Always on
Comparator upper limit
Comparator lower limit
Weighing units to be displayed
ID number for GLP output
Setting the upper limit value
Setting the lower limit value
Sets to display units
Sets the ID number
See
“6. COMPARATOR”
See “8 weighing units”
See “10. ID
NUMBER AND GLP”
Even if the weight display is “5d”, there may be a range that it is not accepted. This
is because the weight display data is rounded off internally.
9. RS-232C SERIAL INTERFACE
This interface allows the EK/EW-i series to be connected with a multifunction printer or
a personal computer.
21
q The RS -232C interface has the following four modes.
LSB 0 1 2 3 4 5 MSB
Inside of the EK/EW-i
Stream mode Outputs data continuously.
Key mode Outputs data by pressing the PRINT key.
Auto-print mode Outputs data which meets the conditions of auto-print.
Command mode Controls the balance using commands from a computer.
q Set the parameters of the data format (bps and btpr) and data output mode
(prt), as necessary.
q Use a D-sub 9 pin cable (straight type) to connect with a computer.
9-1. Interface specifications
Transmission system EIA RS -232C
Transmission form Asynchronous, bi-directional, half-duplex
Data format Baud rate: 2400, 4800, 9600 bps
Data: 7 bits + parity 1bit (even or odd)
or 8 bits (non-parity)
Start bit: 1 bit
Stop bit: 1 bit
Code: ACII
Terminator: CRLF (CR: 0Dh, LF: 0Ah)
6
Stop bit
Parity bit
Data bit
Start bit
Pin connections
D-sub 9pin male connector
1 N.C.
2 Transmit data
3 Receive data
4 N.C.
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 N.C.
9-2. Data format
1 (-15V~-5V)
0 (5V~15V)
Header Data Unit Terminator
22
S T
+ 0 0 0 0 0
,
Separator
.
0 0
g C
LF
R
(“ ” shows a space. )
q There are four types of headers:
ST : Stable weighing data (including % data)
QT : Stable counting data
US : Unstable weighing data (including count and %)
OL : Out of weighing range (Over)
q The data is normally 9 digits including a decimal point and a sign.
q There are 11 types of units:
g : Weighing data “gram”
P C : Counting data “pcs”
% : Percentage data “%”
o z : Weighing data “decimal ounce”
l b : Weighing data “decimal pound”
o z t : Weighing data “troy ounce”
c t : Weighing data “carat”
m o m : Weighing data “momme”
d w t : Weighing data “penny weight ”
G N : Weighing data “grain”
t l : Weighing data “tael”
q The terminator is always CRLF.
q Example of output data:
Weighing data “gram” S T , + 0 0 1 2 3 4 . 5
Counting data Q T , + 0 0 0 1 2 3 4 5
Percentage data S T , + 0 0 0 1 2 3 . 4
Out of range “gram” (+) O L , + 9 9 9 9 9 9 . 9
Out of range “pcs” (-) O L , - 9 9 9 9 9 9 9 9
P C
P C
g
%
g
C
C
C
C
C
L
R
F
L
R
F
L
R
F
L
R
F
L
R
F
9-3. Data output mode
Stream mode
Set the function “prt 0”.
The balance outputs the current display data. The data -update rate is approximately
10 times per second. This rate is the same as the display-update.
The balance does not output data while it is in the setting mode.
Key mode
Set the function “prt 1, 2 or 3”.
When the PRINT key is pressed while the weighing data is stable (the stability mark
is on), the balance transmits the data. When the data is transmitted, the display will
blink one time.
23
Auto-print mode A
Set the function “prt 2”.
The balance transmits the weighing data when the display is stable (the stability mark
is on) and the data is greater than +4d (of the lowest range for EW-i series).
The next output can be obtained after the display returns below +4d.
Auto-print mode B
Set the function “prt 3”.
The balance transmits the weighing data when the display is stable (the stability mark
is on) and the data is greater than +4d (of the lowest range for EW-i series) or less
than -4d.
The next output can be obtained after the display returns between -4d and +4d.
9-4. Command mode
In the command mode, the balance is controlled by commands that come from the
personal computer and so on.
Command list
q Command to request the current weighing data.
Reply S T , + 0 0 1 2 3 4 . 5
q Command to zero or tare the balance (same as the RE-ZERO key).
Command Q C
Command Z C
Reply Z C
q Command to change the weighing units (same as the MODE key).
Command U C
Reply U C
L
R
F
g C
L
R
F
L
R
F
L
R
F
L
R
F
L
R
F
10. ID NUMBER AND GLP
The ID number is used to identify the balance when Good Laboratory Practice (GLP)
is used. The following GLP data is transmitted to an AD-8121 printer or a computer
using the RS-232C interface.
24
q The result of calibration (“Calibration report ”)
a b C d e f g H i j k l m n o p q r s t U v w x y z
Press
Press and hold
Set using the
Returns to
Press
several times
q The result of calibration test (“Calibration test report ”)
q The “Start block” and “End block” for GLP data
10-1. Setting the ID number
1. Press and hold the SAMPLE key to display
func .
2. Press the SAMPLE key several times to display
id .
3. Press the PRINT key. Enter the ID number using
the following keys.
SAMPLE key To select the digit blinking to
change.
RE-ZERO key To set the character of the digit
selected. See the table below for
the “display character set”.
PRINT key To store the value and proceed to
the next step.
MODE key To cancel the value and proceed
to the next step.
4. When the above operation has completed, func
appears after end .
5. Press the MODE key to return to the weighing
mode.
Display character set
0 1 2 3 4 5 6 7 8 9 - A B C D E F G H I J K L M N O P Q R S T U V WX Y Z
func
several times
id
000000
relevant keys
end
func
the weighing mode
0 1 2 3 4 5 6 7 8 9 -
10-2. Output example
Data format for “calibration report”
25
“ ” : Space
Data format for “calibration test report”
“Start block” and “End block”
26
Release
To output
Returns to
Press and hold
Operation of Calibration
the CAL switch.
Cal
the CAL switch
Cal 0
(See “7.CALIBRATION”)
end
10-3. Output procedure for the
“Calibration report”
The function setting: “info 1” or “info 2”
selected.
1. Press and hold the calibration (CAL) switch.
Release the CAL switch when Cal is
27
glp
calibration report
end
the weighing mode
displayed.
Press and hold
The balance starts calibration.
For details on calibration, see “7. CALIBRATION ”
2. end appears when the calibration has been
completed.
3. glp is displayed and calibration report is
output.
4. end appears again. Remove the weight
and press the MODE key to return to the
weighing mode.
10-4. Output procedure for the “Calibration test report”
The function setting: “info 1” or “info 2” selected.
The calibration test mode is used to confirm accurate weighing.
28
the CAL switch.
Calibration
Weighing
1. Press and hold the calibration (CAL) switch.
CC appears after Cal . Release the
switch when CC is displayed.
2. CC 0 is displayed.
3. Press the SAMPLE key and change the weight
value using the following keys.
SAMPLE key To select the digit blinking to
change.
RE-ZERO key To set the value of the digit
selected.
PRINT key To store the value and return
to step 2.
4. At step 2, press the PRINT key. The zero point is
weighed and the weighed value is displayed for a
few seconds.
5. Place a weight, of the same value as displayed, on
the pan. Press the PRINT key to weigh it. The
weighed value is displayed for a few seconds.
29
02000.0
CC 0
2000.0
weight
pan
6. end appears.
7. glp is displayed and calibration test report is
output.
8. end appears again. Remove the weight and
press the MODE key to return to the weighing
mode.
10-5. Output procedure for the “Start block” and “End block”
The function setting: “info 1” or “info 2” selected.
Start block
1. Press and hold the PRINT key. Release the
30
0.0
PRINT key when start is displayed. The
balance outputs the Start block.
2. The balance can output the weighing data by
pressing the PRINT key or selecting the auto print mode.
End block
3. Press and hold the PRINT key. Release the
PRINT key when recend is displayed. The
balance outputs the End block.
4. end appears. Press the MODE key to return
to the weighing mode.
11. OPTIONS
The following options are available for the EK/EW-i series:
q OP-04 Comparator relay output and buzzer
q OP-07 Underhook assembly for EK-6000i, EK-12Ki and EW-12Ki
q OP-09 Rechargeable battery pack (Ni-MH)
31
q OP-12 Carrying case
1 2 3 4
7 mm
Solid state relay
Inside of the EK/EW-i
11-1. OP-04 Comparator relay output and buzzer
Allows output of the HI, OK or LO signal results to an external device as a solid state
relay output.
It is possible to sound a buzzer according to the comparison result. See the function
“bep” to set which result will make a buzzer sound.
qq The comparator function on/off, the comparison mode and
comparator buzzer output can be selected using the function
settings. See the settings “cpcp” and “bepbep ”.
qq OP-04 cannot be used together with OP-09.
Output circuit
Output connector
MSTB 2.5/4-GF-5.08
Maximum rating
The maximum rating of the relay output is as follows.
q Maximum voltage: 50V DC
q Maximum current: 100mA DC
Mating connector
MSTB 2.5/4-STF-5.08
(Attached to the OP-04)
q Maximum ON resistance: 8Ω
OP-04 Installation
1. Remove the cover of the option slot on the rear of balance by pressing and lowering
it down.
2. Insert the option into the slot and secure it with the screws attached.
32
11-2. OP-07 Underhook assembly
By attaching the underhook assembly to the bottom of the balance, large objects that
are difficult to load on the weighing pan can be weighed in suspension, and the
specific gravity of objects may be measured.
qq OP-07 is available for use with the EK-6000i / 12Ki and EW-12Ki balances only.
qq The calibration with a weight being hung on the hook is required for
an accurate weighing.
OP-07 Installation
Remove the cover on the bottom of the balance, and screw the underhook assembly
into the mounting hole.
11-3. OP-09 Rechargeable battery pack (Ni-MH)
By installing the rechargeable battery pack (Ni-MH) into the balance, cordless
operation can be carried out for approximately 9 hours (used with the LCD backlight
off).
qq OP-09 cannot be used together with OP-04.
qq The battery life will vary depending on how the balance is used,
ambient temperature and so on.
33
Charging the battery pack
Connect the AC adapter to the balance and turn the power off, then charging starts. It
will take approximately 15 hours to reach full charge.
qq If “lb0lb0 ” is displayed when using the battery pack, immediately stop
using it, and recharge the battery pack or use the AC adapter.
qq Charge the battery pack at a temperature between 0°C (32°F) and
40°C (104°F).
qq Do not charge too long. Overcharging will reduce the life of the
batteries.
qq Be sure to charge the battery pack when using for the first time or if
it has not been used for a long time (more than one month).
Recharging two or three times may be needed to reach full charge.
qq Be sure to use only the AC adapter that is provided with the EK/EW-i
balance.
OP-09 Installation
See the OP-04 installation.
11-4. OP-12 Carrying case
OP-12 is available for the convenience of carrying the balance by hand. However, note
that because these balances are precision equipment, they will not be able to
withstand excessive shock, such as being dropped.
12. MAINTENANCE
12-1. Notes on maintenance
q Do not disassemble the balance. Contact your local A&D dealer if your
balance needs service or r epair.
q Please use the original package for transportation.
q Do not use organic solvents to clean the balance. Use a warm lint free cloth
34
dampened with a mild detergent.
12-2. Error codes
Overload error
Warning to indicate that an object beyond the balance
e
Range over notice
-e
Unit weight error
lo
Sample quantity notice
10 25 -
50 100 -
CAL errors
Cal e
-Cal e
Low battery
lb0
Stability error
capacity has been placed on the pan. Remove the object
from the pan.
This will be shown by the EW-i series when a weight
beyond the range capacity is tared and removed from the
pan. Press the SAMPLE key to change the weighing
range or press the RE-ZERO key.
The sample weight is too light to set the unit weight in the
counting mode.
When sample weight is light and the counting error could
become large, the balance will request you to use larger
number of samples. Place the displayed number of
samples on the pan and press the PRINT key to store
the unit weight.
Note: Pressing the PRINT key without adding
samples may reduce counting accuracy.
Starting from the 100 samples, 100100 -- may
be displayed when the sample weight is light.
This is for your notice and press the PRINT
key without adding any samples.
When “aCai 0aCai 0” (ACAI disabled) or “Umin 2Umin 2” is
set, this notice is not shown.
Warning to indicate that calibration has been canceled
because the calibration weight is too heavy.
Warning to indicate that calibration has been canceled
because the calibration weight is too light.
Check the weighing pan and the calibration weight.
To return to the weighing mode, press the MODE key.
Warning to show that the battery pack (OP-09) is
discharged. Immediately stop using it, and recharge or
use the AC adapter.
Warning to indicate that the weight value is not stable
and the balance cannot display it. Prevent vibration and
error1
35
drafts. Press the MODE key to return to the weighing
mode.
If you cannot cancel an error or other errors occurred, request service from the
store where you purchased the balance or from your local A&D dealer.
13. SPECIFICATIONS
13-1. EK-i series
MODEL
Weight capacity 120 g 200 g 300 g 600 g
Min. display “d” 0.01 g 0.01 g 0.01 g 0.1 g
No. of samples 5, 10, 25, 50 or 100 pieces
Max. count *) 12,000 pcs 20,000 pcs 30,000 pcs 6000 pcs
36
EK-120i EK-200i EK-300i EK-600i
Min. unit weight *) 0.01 g 0.01 g 0.01 g 0.1 g
Min. % display 0.1 %
Min. 100 % weight 1 g 1 g 1 g 10 g
Repeatability
(Std. deviation)
0.01 g 0.01 g 0.01 g 0.1 g
Linearity ±0.01 g ±0.01 g ±0.02 g ±0.1 g
Sensitivity drift ±20 ppm / °C (10°C~30°C / 50°F~86°F)
Display 7 segment LCD display with backlight (Character height 16 mm)
Display update 10 time per second
Operating temp. -10°C~40°C / 14°F~104°F, less than 85% R.H. (non-condensing)
Power supply AC adapter or optional Ni-MH battery pack
Battery operation Approximately 9 hours (backlight off)
Weighing pan size 110 mm ø
Weight
(approximately)
Calibration weight
(factory setting)
MODEL
1.1 kg 1.1 kg 1.1 kg 1.3 kg
120 g 200 g 300 g 600 g
EK-1200i EK-2000i EK-3000i EK-6000i EK-12Ki
133mm x 170mm
Weight capacity 1200 g 2000 g 3000 g 6000 g 12 kg
Min. display “d” 0.1 g 0.1 g 0.1 g 1 g 1 g
No. of samples 5, 10, 25, 50 or 100 pieces
Max. count *) 12,000 pcs 20,000 pcs 30,000 pcs 6000 pcs 12,000 pcs
Min. unit weight *) 0.1 g 0.1 g 0.1 g 1 g 1 g
Min. % display 0.1 %
Min. 100 % weight 10 g 10 g 10 g 100 g 100 g
Repeatability
(Std. deviation)
0.1 g 0.1 g 0.1 g 1 g 1 g
Linearity ±0.1 g ±0.1 g ±0.2 g ±1 g ±1 g
Sensitivity drift ±20 ppm / °C (10°C~30°C / 50°F~86°F)
Display 7 segment LCD display with backlight (Character height 16 mm)
Display update 10 time per second
Operating temp. -10°C~40°C / 14°F~104°F, less than 85% R.H. (non-condensing)
Power supply AC adapter or optional Ni-MH battery pack
Battery operation Approximately 9 hours (backlight off)
Weighing pan size 133 mm x 170 mm
Weight
(approximately)
Calibration weight
(factory setting)
1.5 kg 1.5 kg 1.5 kg 1.5 kg 1.5 kg
1200 g 2000 g 3000 g 6000 g 12 kg
*) In case of “Umin 0” (factory setting)
13-2. EW -i series
MODEL
Weight capacity
Min. display ”d”
No. of samples 5, 10, 25, 50 or 100 pieces
Max. count *) 15,000 pcs 15,000 pcs 12,000 pcs
Min. unit weight *) 0.01 g 0.1 g 1 g
Min. % display 0.1 %
Min. 100 % weight 1 g 10 g 100 g
EW-150i EW-1500i EW-12Ki
30g 60g 150g 300g 600g 1500g 3kg 6kg 12kg
0.01g 0.02g 0.05g 0.1g 0.2g 0.5g 1g 2g 5g
37
Repeatability
0.01g 0.02g 0.05g 0.1g 0.2g 0.5g 1g 2g 5g
(Std. deviation)
Linearity
± 0.01g ±0.02g ±0.05g ±0.1g ±0.2g ±0.5g ±1g ±2g ±5g
Sensitivity drift ±20 ppm / °C (10°C~30°C / 50°F~86°F)
Display 7 segment LCD display with backlight (Character height 16 mm)
Display update 10 time per second
Operating temp. -10°C~40°C / 14°F~104°F, less than 85% R.H. (non-condensing)
Power supply AC adapter or optional Ni-MH battery pack
Battery operation Approximately 9 hours (backlight off)
Weighing pan size 110 mm ø 133 mm x 170 mm
Weight
(approximately)
Calibration weight
(factory setting)
1.1 kg 1.5 kg 1.5 kg
150 g 1500 g 12 kg
*) In case of “Umin 0” (factory setting)
13-3. Other weighing units
MODEL
Capacity 4.2330 7.0550 10.5820 21.165 42.330 70.550 105.820 211.65 423.30
oz.
Min. display 0.0005 0.0005 0.0005 0.005 0.005 0.005 0.005 0.05 0.05
Capacity ----- ----- ----- 1.3230 2.6455 4.4090 6.6140 13.230 26.455
lb
Min. display ----- ----- ----- 0.0005 0.0005 0.0005 0.0005 0.005 0.005
Capacity 3.8580 6.4300 9.6450 19.290 38.580 64.300 96.450 192.90 385.80
ozt
Min. display 0.0005 0.0005 0.0005 0.005 0.005 0.005 0.005 0.05 0.05
Capacity 600.00 1000.00 1500.00 3000.0 6000.0 10000.0 15000.0 ----- -----
ct
Min. display 0.05 0.05 0.05 0.5 0.5 0.5 0.5 ----- ----Capacity 32.000 53.335 80.000 160.00 320.00 533.35 800.00 1600.0 3200.0
mom
Min. display 0.005 0.005 0.005 0.05 0.05 0.05 0.05 0.5 0.5
Capacity 77.16 128.60 192.90 385.8 771.6 1286.0 1929.0 3858 7716
dwt
Min. display 0.01 0.01 0.01 0.1 0.1 0.1 0.1 1 1
Capacity 1851.8 3086.4 4629.8 9260 18518 30864 46298 ----- -----
GN
Min. display 0.2 0.2 0.2 2 2 2 2 ----- ----Capacity 3.1745 5.2910 7.9365 15.875 31.745 52.910 79.365 158.75 317.45
tl
Min. display 0.0005 0.0005 0.0005 0.005 0.005 0.005 0.005 0.05 0.05
EK-120i EK-200i EK-300i EK-600i
EK-
1200i
qq Note
The unit “tl (Hong Kong General / Singapore)” is for special versions only.
MODEL
Capacity 1.0580 2.116 5.292 10.580 21.16 52.92 105.80 211.6 423.2
oz.
Min. display 0.0005 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2
Capacity ----- ----- ----- 0.6615 1.323 3.306 6.615 13.23 26.46
lb
Min. display ----- ----- ----- 0.0005 0.001 0.002 0.005 0.01 0.02
Capacity 0.9645 1.929 4.822 9.645 19.29 48.22 96.45 192.9 385.8
ozt
Min. display 0.0005 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2
Capacity 150.00 300.0 750.0 1500.0 3000 7500 ----- ----- -----
ct
Min. display 0.05 0.1 0.2 0.5 1 2 ----- ----- -----
mom Capacity 8.000 16.00 40.00 80.00 160.0 400.0 800.0 1600 3200
EW-150i EW-1500i EW-12Ki
EK-
2000i
EK-
3000i
EK-
6000i
EK-12K i
38
Min. display 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1 2
Capacity 19.29 38.58 96.45 192.9 385.8 964.5 1929 3858 7715
dwt
Min. display 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5
Capacity 463.0 926.0 2315 4630 9260 23150 ----- ----- -----
GN
Min. display 0.2 0.5 1 2 5 10 ----- ----- ----Capacity 0.7935 1.587 3.968 7.935 15.87 39.68 79.35 158.7 317.4
tl
Min. display 0.0005 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2
qq Note
The unit “tl (Hong Kong General / Singapore)” is for special versions only.
13-4. Dimensions
NET
ZERO
EK-120i / EK-200i / EK-300i EK-600i / EK-1200i / EK-2000i
EK-3000i / EK-6000i / EK-12Ki
EW-150i EW-1500i / EW-12Ki
NET
ZERO
d= 0.1gMax 1200g
GRAVITY ACCELERATION MAP
Values of gravity at various locations
Amsterdam 9.813 m/s2 Manila 9.784 m/s2
Athens 9.807 m/s2 Melbourne 9.800 m/s2
Auckland NZ 9.799 m/s2 Mexico City 9.779 m/s2
Bangkok 9.783 m/s2 Milan 9.806 m/s2
Birmingham 9.813 m/s2 New York 9.802 m/s2
Brussels 9.811 m/s2 Oslo 9.819 m/s2
39
Buenos Aires 9.797 m/s2 Ottawa 9.806 m/s2
Calcutta 9.788 m/s2 Paris 9.809 m/s2
Cape Town 9.796 m/s2 Rio de Janeiro 9.788 m/s2
Chicago 9.803 m/s2 Rome 9.803 m/s2
Copenhagen 9.815 m/s2 San Francisco 9.800 m/s2
Cyprus 9.797 m/s2 Singapore 9.781 m/s2
Djakarta 9.781 m/s2 Stockholm 9.818 m/s2
Frankfurt 9.810 m/s2 Sydney 9.797 m/s2
Glasgow 9.816 m/s2 Taichung 9.789 m/s2
Havana 9.788 m/s2 Taiwan 9.788 m/s2
Helsinki 9.819 m/s2 Taipei 9.790 m/s2
Kuwait 9.793 m/s2 Tokyo 9.798 m/s2
Lisbon 9.801 m/s2 Vancouver, BC 9.809 m/s2
London (Greenwich) 9.812 m/s2 Washington DC 9.801 m/s2
Los Angeles 9.796 m/s2 Wellington NZ 9.803 m/s2
Madrid 9.800 m/s2 Zurich 9.807 m/s2
World map
40
MEMO
41
MEMO
42
MEMO
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