EXCELL PRECISION CO., LTD
© Excell Precision Limited 2005. All rights reserved Worldwide.
The information contained herein is the property of Excell Precision Limited
and is supplied without liability for errors or omissions. No part may be
reproduced or used except as authorised by contract or other written
permission. The copyright and the foregoing restriction on reproduction
and use extend to all media in which the information may be embodied.
Dolphin 9903 V 1.1 SME300000041
TABLE OF CONTENTS
INSTRUCTION FOR USE............................................................................................................2
PREPARING TO USE THE SCALE.............................................................................................2
CHAPTER 1 FEATURES AND SPACIFICATIONS......................................................................3
1. Features............................................................................................................................3
2. Options..............................................................................................................................3
3. Specifications....................................................................................................................3
4. Power Supply....................................................................................................................4
CHAPTER 2 DISPLAY .................................................................................................................5
CHAPTER 3 KEYBOARD FUNCTION ........................................................................................6
CHAPTER 4 BASIC FUNCTION OPERATION ...........................................................................7
1. Switch On..........................................................................................................................7
2. Re-Zero.............................................................................................................................7
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3. Unit Selection....................................................................................................................7
4. Tare Function.....................................................................................................................8
5. Net/Gross Weight Conversion...........................................................................................8
6. Simple Counting................................................................................................................9
CHAPTER 5 ADVANCED FUNCTIONS SETTING....................................................................10
1. Function Setting ...............................................................................11
1-1 Auto Backlight Setting .............................................................12
1-2 Auto-off Timer Setting .............................................................13
1-3 Check-Weighing Setting .........................................................14
1-4 Restore to Factory Setting ......................................................15
1-5 Environment Parameter Setting ..............................................16
1-6 Hold Function Setting ..............................................................17
2. External Weight Calibration ...................................................................18
APPENDIX SEVEN-SEGMENT DISPLAY CHARACTERS .......................................................19
Dolphin 9903 V 1.1 SME300000041
1
INSTRUCTION FOR USE
Thank you for purchasing the 9903 Dolphin II weighing scale of Excell. To enable you to use this
scale correctly, we suggest that you read the following instructions carefully.
1. Don’t bump the scale against other items nor load it with heavy weight exceeding its full
capacity.
2. Keep it away from high temperature.
3. If the scale is not going to be used for a certain period of time, clean it and store it in a
polythene bag. A desiccant may be included.
4. If the scale is not used for a long period of time, recharge it every 3 months so as to ensure a
long life of the battery. Fully recharge it before using again. Take care not to keep the scale
being charged for too long.
5. Commodities should be placed at the center of the platter when being weighed, and can’t
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exceed the dimension of the platter.
PREPARING TO USE THE SCALE
1. Please locate the scale on a stable, level surface to ensure accurate weight readings.
2. Adjust the four leveling feet to make the balance horizontal. Make sure that the level bubble is
in the center of the circle.
3. Keep the scale away from places with strong drafts or excessive temperature fluctuations (e.g.
direct sunlight or the air louver of an air conditioner).
4. There should be no weight on the scale when the scale is switched on.
5. Once the scale is switched on, it will go through a LCD display test and then re-zero to be
ready for use.
6. Please warm up the scale for 15~20 minutes before operation.
7. Please note when the symbol flashes on the screen, the battery needs to be
recharged.
Dolphin 9903 V 1.1 SME300000041
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CHAPTER 1 FEATURES AND SPACIFICATIONS
1. Features
2 IP65 Wash down design
2 Auto calibration
2 Large LCD display with LED backlight included
2 Kilogram (kg) and pound (lb) weighing modes
2 Full range tare; Auto zero tracking
2 Adjustable gravity value
2 Simple counting; Gross/Net indication; Hold function; Check mode Lo/Hi/OK
2 Low power indication and auto power off
2 Easily adjusted leveling feet for stability of the scale
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2. Options
2 Second display (customer side)
2 DC 6V/1.2 AH Rechargeable battery
2 Stainless steel platter (220 x 190 mm)
3. Specifications
Model Capacity Division
9903-3 3 kg (6 lb ) 1 g (0.002 lb)
9903-6 6 kg (12 lb) 2 g (0.005 lb)
9903-15 15 kg (30 lb) 5 g (0.01 lb)
9903-30 30 kg (60 lb) 10 g (0.02 lb)
Operating Temperature: 0°C ~ 40°C (32°F ~ 104°F)
Power Source: AC 110V/230V (±10%) or 4 x UM-1 1.5V dry batteries (not included)
Dimensions: 242 x 130 x 285 mm ( W x H x D )
Platter Size: 218 x 188 mm (Plastic platter); 220 x 190 mm (Steel platter)
Display: LCD, 6 Digits. 25 mm (Height), LED backlight
Dolphin 9903 V 1.1 SME300000041
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4. Power Supply
Power Source: AC 110V/230V (±10%) adaptor;
4 x UM-1 1.5V dry batteries; or
6V / 1.2Ah rechargeable battery
Power Consumption:
With backlight: about DC 14 mA; battery life about 85 hours
Without backlight: about DC 24 mA; battery life about 50 hours
Low Battery Indication: When the symbol flashes, the battery needs to be
recharged or the dry battery needs to be replaced.
4 The scale will power off automatically after 1 to 2 hours if the battery is not charged.
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Please fully recharge the battery before using the scale again.
Dolphin 9903 V 1.1 SME300000041
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2 3 4 5 6 7
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CHAPTER 2 DISPLAY
1
HI : When this indicator is on, the weight value is larger than the preset high limit.
OK : When this indicator is on, the weight value is between the low and high limits.
LO : When this indicator is on, the weight value is less than the preset low limit.
kg : Indicating that the current weighing unit is “kg”.
lb : Indicating that the current weighing unit is “lb”.
Pcs : Indicating that the scale is in the simple counting mode.
à0ß : “ZERO” indicator and platform stable confirmation.
Net: When this indicator is on, the scale is in the tare mode, and the net weight is displayed.
: “Low Battery” indicator
61 : (STABLE) “stable” indicator
62 : (GROSS) When this indicator is on, the scale is in the tare mode, and the gross weight
is displayed.
63 : ( ) In the counting mode, when this indicator is on, the unit weight of the sample
is too small.
64 : ( ) In the counting mode, when this indicator is on, the total weight of the sample
is too small.
65 : (Hold) “Hold weight” indicator
66 : “GN”、“dwt”、“ct” unit indicator
67 : “oz” unit indicator
Dolphin 9903 V 1.1 SME300000041
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CHAPTER 3 KEYBOARD FUNCTION
OFF
1. : Pressed to switch the scale off
ON
ZERO
2. : When the scale is off, pressed to switch it on.
When the scale is on, if the weight is within the zero range, this key is pressed
to re-zero the display or cancel the tare mode.
4 Zero range:
OIML & NTEP: ±2% of full scale;
Sri Lanka: ±4% of full scale
TARE
3. : Pressed to deduct the container weight.
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UNITS
4. : Pressed to choose the unit weight “kg” or “lb”.
NET
GROSS
5. : Net /Gross weight conversion under tare mode.
Dolphin 9903 V 1.1 SME300000041
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CHAPTER 4 BASIC FUNCTION OPERATION
1. Switch On
ON
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When the scale is off, press the key to switch on the scale
2. Re-Zero
When there is no load on the platter, if the displayed weight is not zero and is within the
ON
zero range, press the key to re-zero the scale, and the indicator “à0ß” is on.
ZERO
ZERO
4 Zero range:
OIML & NTEP: ±2% of full scale;
Sri Lanka: ±4% of full scale
3. Unit Selection
Press the key to choose the weight unit “kg”, “lb” or the counting unit “Pcs”. The
unit indicator “kg”, “lb” or “Pcs” will be on.
4 When the scale is switched off, it will memorize the active unit in use, and when it is
switched on again, the previous active unit will be shown on the display.
UNITS
Dolphin 9903 V 1.1 SME300000041
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4. Tare Function
(1) Put the container on the platter. When the weight displayed is stable, press the
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TARE
key. The weight of the container is thus deducted, and the “Net” indicator is
on.
(2) Put the object to be weighed into the container, and the display shows the net weight of
the object.
(3) Remove the container and the object together from the platter. The display will show the
negative value of the container weight.
TARE
(4) Press the key again, the negative value is cleared and the display returns to
zero. The “Net” indicator is off.
4 Tare continuously: When the container weight increases or decreases continuously, it
TARE
can all be deducted by pressing the key.
4 Tare value can be up to the full capacity of the scale.
5. Net/Gross Weight Conversion
NET
In the Tare mode, when the “Net” indicator is on, press the key once.
The display will show the gross weight, the “Net” indicator is off, and the Gross indicator “6”
is on.
NET
Press the key again, the display will show the net weight, the “Net” indicator is
GROSS
on, and the Gross indicator “6” is off.
Thus by pressing the key, the net weight and the gross weight can be displayed alternately.
NET
4 The key is functional only under Tare mode.
GROSS
4 When the gross weight is displayed, no key but the key is functional.
Dolphin 9903 V 1.1 SME300000041
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GROSS
NET
GROSS
6. Simple Counting
6-1 Counting mode access
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Press the key to select the “Pcs” unit, and the scale enters the simple
counting mode.
UNITS
6-2 Sampling
This important procedure is to let the scale calculate the unit weight:
NET
(1) Press the key to select a sample size 10, 20, 50, 100 or 200.
(2) Put enough samples onto the platter according to the selected number, and then
press the key. The display shows “- - - - - -” first. When the scale
becomes stable, the display shows the number of samples on the platter.
(3) Remove the samples from the platter, and the scale is ready to count.
GROSS
UNITS
6-3 Counting
Place the objects to be counted onto the platter, and the quantity shows on the display.
4 When any of the following indicator is on, the scale can still count, but inaccuracy may
occur:
Sample too small ( ): total sample weight is less than 20 divisions
Unit weight too small ( ): unit weight is less than 1/5 division.
4 The scale will memorize the last sample size when switched off, and the same can be
used when the scale enters the counting mode next time.
4 If the number of samples changes by 5 pieces from the last sample used, the scale will
calculate the new unit weight automatically.
Dolphin 9903 V 1.1 SME300000041
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CHAPTER 5 ADVANCED FUNCTIONS SETTING
4 To access the advanced functions setting, press the NET/GROSS key and the
ON/ZERO key at the same time when the scale is in the weighing mode. The
display shows .
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Press the
ON/ZERO
key
Press the
Press the
ON/ZERO
key
Press the
Press the
ON/ZERO
key
⇒ Functions Setting
⇒ External Weight Calibration
⇒ Exit Advanced Functions Setting
Press the
UNITS
key
UNITS
key
UNITS
key
Dolphin 9903 V 1.1 SME300000041
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1. Function Setting
4 Six functions
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Press the
Input “00 ~ 06”
If input “00”, press the
key to return to the upper level
category.
TARE
key
TARE
⇒ Return to the upper level category
⇒ Auto backlight setting
⇒ Auto-off timer setting
⇒ Check-weighing setting
⇒ Restore to the factory setting
⇒ Environment parameter setting
⇒ Hold function setting
~ can be set here.
ON/ZERO ⇒ Upward digit selecting (0-9)
UNITS ⇒ Downward digit selecting (9-0)
TARE ⇒ Move the cursor rightward
NET/GROSS ⇒ Move the cursor leftward
Dolphin 9903 V 1.1 SME300000041
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Auto backlight setting
1-1 Auto Backlight Setting
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Press the
TARE
key
Press the
key to select “on” or “off”.
ON/ZERO
Press the
TARE
key
Auto backlight mode
1. When there is weight on the platter (the value is larger than 10 divisions), or
when any key is pressed, the backlight is on.
2. After the weight on the platter keeps under 10 divisions while no key is
pressed, the backlight will be off in about 10 seconds.
or
UNITS
The display shows the current
backlight setting.
on ⇒ Turn on the auto backlight
off ⇒ Turn off the auto backlight
Dolphin 9903 V 1.1 SME300000041
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to input
Auto
-
off
timer
setting
If the scale is not operated for 1 minute,
1-2 Auto-off Timer Setting
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Press the
Press the
or
UNITS
a parameter
Press the
Auto-off timer
If the weight on the platter keeps under 10 divisions while no key is pressed,
TARE
ON/ZERO
key
TARE
the scale will automatically switch off after waiting for the set time.
key
key
The display shows the current setting
0 ⇒ Auto-off not functional
1 ⇒
it will automatically switch off.
2 ⇒ If the scale is not operated for 2
minutes, it will automatically switch off.
9 ⇒ If the scale is not operated for 9
minutes, it will automatically switch off.
ON/ZERO ⇒ Upward digit selecting (0-9)
UNITS ⇒ Downward digit selecting (9-0)
TARE ⇒ Move the cursor rightward
NET/GROSS ⇒ Move the cursor leftward
Dolphin 9903 V 1.1 SME300000041
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display shows the current
kg
1-3 Check-Weighing Setting
4 If both the preset high limit and the low limit values are set as 0, the check-weighing
function is invalid.
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Press the
TARE
key
Input the desired high limit value
Press the
TARE
key
Input the desired low limit value
Press the
TARE
key
Input the buzzer parameters
Press the
TARE
key
.
.
.
.
kg
kg
kg
The
setting of high limit value
The display shows the current
setting of low limit value
The display shows the current
setting of buzzer parameters
Buzzer parameter setting
(a) (b) (c)
(a) 1 ⇒ the buzzer beeps to alarm
0 ⇒ the buzzer does not beep
(b) 1 ⇒ beep stable
0 ⇒ beep unstable
(c) 1 ⇒ beeps when the weight is
between high and low limit.
0 ⇒ beeps when the weight is out
of high and low limit.
(Weight over 10d)
ON/ZERO ⇒ Upward digit selecting (0-9)
UNITS ⇒ Downward digit selecting (9-0)
TARE ⇒ Move the cursor rightward
NET/GROSS ⇒ Move the cursor leftward
Dolphin 9903 V 1.1 SME300000041
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1-4 Restore to the Factory Setting
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Press the
TARE
key
Return to upper level category
(abort restoring)
Press the
key to select “return” or “format”.
ON/ZERO
or
UNITS
Restore to the factory setting
Press the
TARE
key
4 The restored factory settings include the following:
(1) External weight calibration
(2) Check-weighing setting
(3) Environment parameter setting
(4) Sampling value in counting mode
4 is not accessible for approval models.
Dolphin 9903 V 1.1 SME300000041
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Return
-to-
zero
-
point setting
Noise filter parameter setting
The display shows the current setting
. Therefore, larger parameter is
1-5 Environment Parameter Setting
4 The parameters in remain the same after the ones has been modified
in
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Press the
TARE
key
Use the
key to input a parameter
ON/ZERO
Press the
TARE
key
Use the
key to input a parameter
ON/ZERO
Press the
TARE
key
Use the
key to input a parameter
ON/ZERO
Press the
TARE
key
or
or
or
UNITS
UNITS
UNITS
Return-to-zero-point setting
Default setting = 0
0 ⇒ No skip 5 ⇒ skip 5d
1 ⇒ skip 1d 6 ⇒ skip 6d
2 ⇒ skip 2d 7 ⇒ skip 7d
3 ⇒ skip 3d 8 ⇒ skip 8d
4 ⇒ skip 4d 9 ⇒ skip 9d
4 The function is active when the
weight is over 1/3 of full scale
Digital switch & stabilization range setting
The display shows the current setting
Digital switch & stabilization range setting
Parameters 0 ~ 9 selectable;
Default setting = 0
The larger the number, the easier for the
scale to get stable.
The display shows the current setting
Noise filter parameter setting
Parameters 0 ~ 9 selectable;
Default setting = 5
The larger the number, the speeder the
filter reacts
suitable for unstable environment.
ON/ZERO ⇒ Upward digit selecting (0-9)
UNITS ⇒ Downward digit selecting (9-0)
TARE ⇒ Move the cursor rightward
NET/GROSS ⇒ Move the cursor leftward
4 is not accessible for approval models.
Dolphin 9903 V 1.1 SME300000041
16
Hold function setting
display shows the current hold
1-6 Hold Function Setting
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Press the
TARE
key
The
function mode
Use the
key to input a parameter
Press the
ON/ZERO
TARE
key
or
UNITS
Default setting = 0
0 ⇒ No hold function
1 ⇒ “peak” hold function mode
2 ⇒ “stable” hold function mode 1
3 ⇒ “stable” hold function mode 2
Input “00”
Press the
complete the function setting
TARE
key to
ON/ZERO ⇒ Upward digit selecting (0-9)
UNITS ⇒ Downward digit selecting (9-0)
TARE ⇒ Move the cursor rightward
NET/GROSS ⇒ Move the cursor leftward
⇒ No Hold function
⇒ “Peak” hold function mode
⇒ “Stable” hold function mode 1
When the scale becomes stable, the display shows and holds the
⇒ “Stable” hold function 2
When the scale becomes stable, the display shows and holds the
When the weight keeps changing, the scale will automatically hold
and display the largest value.
Press any key to clear the held value.
weight value, which can not be changed.
Press any key to clear the held value.
weight value, which can not be changed.
When the scale is re-zeroed (weight less than 10d), the held value is
automatically cleared.
Dolphin 9903 V 1.1 SME300000041
17
weight (
weight
2. External Weight Calibration
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Press the
TARE
key
Put the platter on and make sure
there is no weight on the platter.
Then press the TARE key.
The scale becomes stable
Place enough weight to the platter
according to the display.
When the scale becomes stable, the
buzzer beeps for 3 times.
Remove all the weights, and the
calibration procedure is completed.
4 is not accessible for approval models.
kg
.
kg
kg
.
The display shows the calibration
equals to the full capacity) and
the weight unit. The last digit flashes.
4 The calibration weight can be
modified if necessary.
The scale is calculating the internal
value of the zero point.
The display shows the calibration
.
ON/ZERO ⇒ Upward digit selecting (0-9)
UNITS ⇒ Downward digit selecting (9-0)
TARE ⇒ Move the cursor rightward
NET/GROSS ⇒ Move the cursor leftward
4 It is recommended that the external weight calibration should be carried out by a
qualified technician from your supplier to ensure the accuracy of the scale.
Dolphin 9903 V 1.1 SME300000041
18
APPENDIX SEVEN-SEGMENT DISPLAY CHARACTERS
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Digit
0
1
2
3
4
5
7 segment
letter
Alphabet
A
B
C
D
E
F
7 segment
letter
Alphabet
N
O
P
Q
R
S
7 segment
letter
6
7
8
9
K
L
M
G
H
I
J
T
U
V
W
X
Y
Z
Dolphin 9903 V 1.1 SME300000041
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