Detecto | DS-12 | Instruction manual | Detecto DS-12 Instruction manual

Detecto DS-12 Instruction manual
Price Computing Scale
DS Series
Operation Manual
8529-M635-01 Rev B
04/09
Cardinal Scale Manufacturing Co.
PO BOX 151 WEBB CITY, MO 64870
PH (417) 673-4631 - FAX (417) 673-5001
www.detectoscale.com
Technical
Support: Ph: 866-254-8261  techsupport@cardet.com
8529-M635-O1
 DS-Series
Printed in USA
Page 1
8529-M635-O1  DS-Series
Page 2
INTRODUCTION
Thank you for purchasing our Detecto DS Series Price Computing Scale. Your scale has been
designed to operate from 115 VAC 50/60 Hz (optional 230 VAC 50/60 Hz) or with the included
rechargeable battery pack. The battery pack is able to provide 100 hours continuous operation
(with backlight on) or 200 hours continuous operation (with backlight off).
This manual will guide you through setup and operation of your scale. Please read it
thoroughly before attempting to operate this scale and keep it handy for future reference.
FCC COMPLIANCE STATEMENT
WARNING! This equipment generates uses and can radiate radio frequency and if not
installed and used in accordance with the instruction manual, may cause interference to radio
communications. It has been tested and found to comply with the limits for a Class A
computing device pursuant to Subpart J of Part 15 of FCC rules, which are designed to provide
reasonable protection against such interference when operated in a commercial environment.
Operation of this equipment in a residential area may cause interference in which case the
user will be responsible to take whatever measures necessary to correct the interference.
You may find the booklet "How to Identify and Resolve Radio TV Interference Problems"
prepared by the Federal Communications Commission helpful. It is available from the U.S.
Government Printing Office, Washington, D.C. 20402. Stock No. 001-000-00315-4.
All rights reserved. Reproduction or use, without expressed written permission, of editorial or
pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to
the use of the information contained herein. While every precaution has been taken in the
preparation of this manual, the Seller assumes no responsibility for errors or omissions.
Neither is any liability assumed for damages resulting from use of the information contained
herein. All instructions and diagrams have been checked for accuracy and ease of application;
however, success and safety in working with tools depend to a great extent upon the individual
accuracy, skill and caution. For this reason the Seller is not able to guarantee the result of any
procedure contained herein. Nor can they assume responsibility for any damage to property or
injury to persons occasioned from the procedures. Persons engaging the procedures do so
entirely at their own risk.
Serial Number_______________________
Date of Purchase ____________________
Purchased From_____________________
PRECAUTIONS
Before using this instrument, read this
manual and pay special attention to all
"WARNING" symbols:
___________________________________
___________________________________
RETAIN THIS INFORMATION FOR FUTURE USE
8529-M635-O1  DS-Series
IMPORTANT
ELECTRICAL
WARNING
Page 3
TABLE OF CONTENTS
INSTALLATION                                1
Unpacking                              1
Placement                              1
Level Adjustment                         1
Power Connection                        1
AC Operation                            1
KEY FUNCTIONS                              2
ANNUNCIATORS                              3
OPERATION                                  4
Power Switch                            4
Display Backlight                         4
Weight Display                           4
Tare Operation                           5
Normal Unit Price                         5
PrePack Operation                        5
Tare Operation To Obtain Net Weight        5
Metric Conversion                        5
CALIBRATION                                6
CALIBRATION SEAL INSTALLATION              9
ERROR AND STATUS DISPLAYS                10
BEFORE YOU CALL SERVICE                   10
CARE AND CLEANING                         10
SPECIFICATIONS
Displays:
(.75” High LCD, with backlight)
Weight = 5 Digits
Unit Price = 5 Digits
Total Price = 6 Digits
Dimensions:
11.75" W x 12.63" D x 4.25" H
(298mm x 321mm x 108mm)
Platform Size
11.38" W x 8.25" D
(289mm x 210mm)
Model
DS-6
DS-12
DS-30
DS-60
Capacity and Division Value
6 lb x .002 lb (3 kg x .001 kg)
12 lb x .005 lb (6 kg .002 kg)
30 lb x .01 lb (15 kg .005 kg)
60 lb x .02 lb (30 kg .01 kg)
Zero
Established on power up routine and maintained by
auto-zero circuitry
Power
Built-in rechargeable battery pack or 115 VAC 50/60Hz or
230 VAC 50/60Hz
Tare
100% of full scale capacity
Operating Temperature
32 ~ 104°F (0° ~ 40°C)
Humidity
25% ~ 95% RH
8529-M635-O1  DS-Series
Page 4
INSTALLATION
Unpacking
Before beginning installation of your DS Series Price Computing Scale, make certain the
instrument has been received in good condition. Carefully remove the instrument from the
shipping carton and inspect it for any evidence of damage (such as exterior dents or
scratches) that may have taken place during shipment. Keep the carton and packing material
for return shipment if it should become necessary. It is the responsibility of the purchaser to
file all claims for any damages or loss incurred during transit.
Placement
Place the scale in an environment free of excessive dust and moisture and on a stable,
vibration-free level surface away from direct sunlight and any rapidly moving air source
(heating/cooling vents, fans, etc.). This will prevent sudden temperature changes and air
currents that may result in unstable weight readings. Keep the area around the scale clear to
provide adequate air circulation and make certain the power cord is routed out of the way of
normal traffic.
CAUTION! DO NOT place the scale on any unstable cart, stand or table. The
scale may fall causing injury to the operator, and seriously damage the unit,
or proper operation of the scale may be inhibited.
Level Adjustment
Check to make certain the scale is level. The level indicator
is located at the front of the scale. If the scale is not level
(the bubble will not be centered), loosen the locking ring on
all four (4) mounting feet and adjust them as required to
center the bubble and attain a level scale. Once the scale is
level, lock the mounting feet in place by tightening the
adjustment locking rings against the bottom of the scale.
Not Leveled
Leveled
Power Connection
The scale contains a power supply that converts the 110/120/220/240 VAC 50/60Hz wall
supply to the power required by the scale circuitry. The power supply also contains the
circuitry necessary to monitor and recharge the battery and is capable of operating the scale
and recharging the battery simultaneously.
AC Operation
Plug the power cord into a grounded, polarized wall receptacle that supplies 110/120 VAC
50/60Hz power. If it is necessary to use an extension cord, make certain it is a 3-wire, fully
grounded type using a minimum of 18-gauge wire. Be certain the power cord is routed out of
the way of normal traffic. If only an ungrounded wall receptacle is available, it is the
customer's responsibility to contact a qualified electrician to replace the ungrounded
receptacle with a grounded wall receptacle or have a grounding adapter properly installed.
CAUTION! To avoid electrical hazard, DO NOT under any circumstances, cut,
remove, alter, or in any way bypass the power cord-grounding prong.
NOTE! In areas subject to lightning strikes, additional protection (surge
suppressors) should be installed.
It is the responsibility of the customer to contact a qualified electrician to install the proper
power cord connector. Plug the power cord into a grounded, polarized wall receptacle that
supplies 220/240 VAC 50/60Hz power. Be certain the power cord is routed out of the way of
normal traffic.
8529-M635-O1  DS-Series
Page 1
KEY FUNCTIONS
This section describes the use of each of the keys on the DS Series Price Computing Scale. It
will be helpful to refer to the scale keyboard or the figure below when reading this section.
The membrane keyboard is not to be
operated with pointed objects (pencils,
pens, fingernails, etc). Damage to
keyboard resulting from this practice
will NOT be covered under warranty.
ZERO
The ZERO key is used to perform a variety of functions depending on the
current mode of operation:
Weight Display Mode (lb or kg annunciator on): Pressing the ZERO key will set
the weight display to zero and turn on the ZERO annunciator if the displayed
weight is within ± 2% of scale capacity.
Operational Setup Mode: Pressing the ZERO key and then pressing the setup
parameter number on the numeric keypad while CENTR is displayed will enter
that setup mode.
TARE
Pressing the TARE key will store the current gross weight as the new tare
weight and change to the net weight mode.
UNITS
Pressing this key will display the current weighing units. To change to a different
weighing unit, press the UNITS key, then the corresponding key on the numeric
keypad for the weighing unit desired.
1 = kilogram mode (kg)
2 = 100g mode
3 = pounds mode
The currently selected weighing unit is indicated by illuminating and blinking the
kg, 100g or lb annunciator.
PRE
PACK

CLEAR
ENTRY
0~9
00
Pressing the PREPACK key after unit price is entered retains the unit price for
repetitive price computing. Tare entries are retained in PREPACK mode.
This is the Backspace key. It is used to clear the last digit entered when
entering the unit price.
The CLEAR ENTRY key is used to perform different functions depending on the
current mode of operation:

Data Entry: The CLEAR ENTRY key is used to clear an incorrect entry
from the display without processing the data. If an incorrect entry is
made, press the CLEAR ENTRY key and re-enter the correct data.

Price Computing Mode: Pressing the CLEAR ENTRY key while in the
price-computing mode will clear the unit price.
These keys are used to enter numeric data during normal operations as well as
during calibration and operational setup.
8529-M635-O1  DS-Series
Page 2
ANNUNCIATORS
The annunciators are turned on to indicate that the scale is in the mode corresponding to the
annunciator label or that the status indicated by the label is active. The following describes the
functions of each annunciator on both the operator and customer displays.
Operator Display
Customer Display
Z
(Center-of-Zero)
The Center-of-Zero annunciator is located in the upper left of the WEIGHT display and is
selected to indicate that the weight is within +/- 1/4 division of the center of zero.
NET
The NET annunciator is located in the lower left of the WEIGHT display and is selected to
show that the weight displayed is the net weight. Net weight is determined by subtracting the
stored tare weight from the gross or scale weight. The tare weight, usually the weight of the
container, is entered using the tare key. Note that the NET annunciator is only active when a
zero tare weight or tare weight value is stored and the display is in the weight mode as shown
by the illumination of the kg, 100g or lb annunciator.
kg
The kg annunciator is located in the upper left of the UNIT PRICE display and is turned on to
show that the weight displayed is in kilograms and the Unit Price is per kilogram.
100g
The 100g annunciator is located in the middle left of the UNIT PRICE display and is turned on
to show that the Unit Price is per 100 grams. The weight displayed is still in kilograms, only
the Unit Price is per 100g.
NOTE! The 100g mode is commonly used for weighing lighter weight or expensive
products like flower seeds or caviar.
8529-M635-O1  DS-Series
Page 3
ANNUNCIATORS, CONT.
lb
The lb annunciator is located in the lower left of the UNIT PRICE display and is turned on to
show that the weight displayed is in pounds and the Unit Price is per pound.
PRE
PACK
The PRE PACK annunciator is located in the upper left of the TOTAL PRICE display and is
selected to show that the scale is in the PREPACK mode. The PREPACK mode is used for
repetitive price computing.
(Low Battery)
The Low Battery annunciator is located in the lower right of the operator WEIGHT display and
is used with the battery operation to indicate that the internal battery requires charging. No
change in operation will occur until just before the battery voltage drops to a level where
operation is affected. At this level, the scale will automatically turn itself off.
NOTE! When the battery needs to be recharged, the CHARGING LED will turn Red.
After the battery has been recharged, the CHARGING LED will turn Green.
OPERATION
Power Switch
The Power Switch is located on the bottom left side panel towards the front of the scale. Place
the power switch in the on position. The scale will perform a brief lamp test. This test consists
of illuminating all display segments and annunciator LED's to allow the operator to make a
visual verification that the display is operational. After completion of the lamp test, the weight
display will show zero weight, indicating the scale is ready for use.
Display Backlight
Auto Backlight
Press the ZERO key. The WEIGHT display will show [ CENTR ]. With [ CENTR ] displayed,
press the 4 key on the numeric keypad. When the weight is over 10 divisions or any key is
pressed, the display backlight will be turned on. When the weight returns to zero or the
weight on platform is less than 10 divisions, the display backlight will turn off after 5 seconds.
Backlight Off
Press the ZERO key. The WEIGHT display will show [ CENTR ]. With [ CENTR ] displayed,
press the 5 key on the numeric keypad. The backlight will be OFF.
NOTE! The backlight mode is stored in memory and will restored when the scale is switched
off and back on again.
Before using the scale, it should be “warmed up” (turned on and unloaded for
approximately 15 to 20 minutes).
Weight Display
Displaying Weight
1. With the scale in the Weight mode ( [ )00 ] will be displayed on the UNIT PRICE and
TOTAL PRICE displays), place the item to be weighed on the scale platform.
2. The display will show the weight on the scale platform. The lb or kg annunciators will turn
on to indicate which unit of weight has been selected and that the scale is in the Weight
mode. NOTE! The UNIT PRICE and TOTAL PRICE displays will remain at 0 (zero).
8529-M635-O1  DS-Series
Page 4
OPERATION, CONT.
Zero the Weight Display
1. With the scale in the Weight mode ( [ )00 ] will be displayed on the Unit Price and Total
Price displays), press the ZERO key.
2. The Weight display will show [ CENTR ].
3. The weight display will return to zero. The ZERO annunciator will illuminate, indicating a
center-of-zero gross weight condition.
Tare Operation
1. With the scale in the Weight mode ( [ )00 ] is displayed on all displays), place the empty
container on the scale platform.
2. Press the TARE key. The weight display will change to zero and the NET and ZERO
annunciators will illuminate, indicating center-of-zero net weight is being displayed. The
empty container's weight has been entered as "tare weight".
To Clear the Tare
To return to a zero tare, simply remove all material from the scale platform and press the
TARE key, which will reset the tare weight to zero and return the scale to a center-of-zero
gross weight condition.
Normal Unit Price
1.
2.
3.
4.
Place commodity on scale.
Key in unit price (max. 99.99) per pound or kilogram.
Read total weight and total price.
Remove commodity. Scale will return to zero, ready for next operation.
PrePack Operation
For repetitive price-computing of commodities with the same unit price:
1. Enter tare if so desired as outlined in Tare Operation. Tare entry will be retained in
PREPACK mode.
2. Enter unit price (max. 99.99) and press the PREPACK key. The PREPACK annunciator
will illuminate.
3. Place commodities on scale and proceed with operation.
4. When the prepacking operation is ended, press the PREPACK key to clear unit price and
turn off PREPACK mode. Tare will then clear automatically.
Tare Operation to Obtain Net Weight
1.
2.
3.
4.
5.
6.
7.
8.
9.
Place empty container on scale.
Press the TARE key.
The WEIGHT display will change to zero and the Net weight annunciator will illuminate.
Key in unit price (max. 99.99).
Place commodity in container. Net weight of commodity will be displayed.
Read net weight and total price.
Remove container and commodity from scale.
Scale will return to zero and clear tare and unit price information.
Scale is ready for next operation.
Metric Conversion
To change weighing units, press the UNITS key, then press the corresponding key on the
numeric keypad for the desired weighing unit.
1 = kilogram mode (kg) - Unit Price is per kg
2 = 100g mode (Weight displayed is in kilograms, only the Unit Price is per 100 grams).
3 = pounds mode (lb) - Unit Price is per lb
The currently selected weighing unit is indicated by illuminating and blinking the kg, 100g or lb
annunciator.
8529-M635-O1  DS-Series
Page 5
CALIBRATION
Your DS Series Price Computing Scale was calibrated at the factory and should not require
adjustment. In the event that the scale should need recalibration, the following describes the
Calibration of the DS Series Price Computing Scale. A qualified technician should perform this
function to maintain the instrument's high degree of accuracy.
Before beginning calibration, the following equipment is required:
Calibration test weights:
DS6 = 6 lb
DS12 = 12 lb
DS30 = 30 lb
DS60 = 60 lb
No. 1 Phillips screwdriver to remove housing screws
1/8 or 3/16 slotted screwdriver (to change calibration switch position)
If sealing wires require breaking for purposes of calibration, proper
procedures covered under the National Institute of Standards and Technology
Handbook 44 must be adhered to.
Change Calibration Switch to Calibrate Position
Referring to the pictures on the next page, perform the following steps:
1. With the scale power OFF, remove the commodity tray and set it aside. NOTE! If you are
operating the scale using AC power, remove the AC power cord also.
2. Referring to pictures “A” and “B”, remove the 4 blue dust shields from the weighbridge
posts and turn the scale upside down
3. Using picture “C” as a guide, locate the 4 screws securing the top housing to the bottom
housing and remove the screws.
4. Grasping the scale so that you can hold the 2 housings together, turn the scale right side
up and with the rear display towards you.
5. Referring to picture “D”, lift the top housing off the bottom and tip the rear of it forward
(away from you). To avoid damaging the keypad cable, only lift the housing up enough to
clear the internal components.
6. While holding the top housing up with one hand, locate the calibration switch on the front
PC board. To locate the calibration switch, look for the black plastic portion of the
calibration switch as shown in picture “E”.
7. Referring to picture “F”, use the 1/8 or 3/16 slotted screwdriver to slide the calibration
switch to the Calibrate position. NOTE! A slight clicking noise can be heard when the
switch position is changed.
8. Lower the top housing onto the lower housing then rotate the scale to the normal position
(keypad facing you).
9. If using AC power, grasp the scale so that you can hold the 2 housings together and insert
the power cord.
10. Place the commodity tray on the scale.
11. The scale is now ready for setup and calibration.
8529-M635-O1  DS-Series
Page 6
CALIBRATION, CONT.
Dust
Shields
A
B
Housing
Screws
C
D
Calibrate
Normal
Calibration
Switch
Calibration
Switch
E
F
8529-M635-O1  DS-Series
Page 7
CALIBRATION, CONT.
To Begin Calibration
1. While holding down the Hidden key, turn
the power to the scale ON. The scale will
perform a brief lamp test.
2. When the WEIGHT display shows [ f 0 ],
release the Hidden key.
3. Press the TARE key until the WEIGHT
display shows [ f 3.]. The UNIT PRICE
display will show [ GJEit ] and the TOTAL
PRICE will show [ CAL ].
Hidden
Key
4. Press the 0 key on the numeric keypad.
The WEIGHT display will start to flash
[ )000 ].
5. Make certain the commodity tray is empty, and press the Hidden key.
6. The Weight display will start to flash the amount of weight to use. For example, a DS12
requires 12 lb, therefore the Weight display will flash [ 1@000 ].
7. Place the weight on the commodity tray.
8. When the scale is stable, press the Hidden key.
9. After a few seconds, the WEIGHT display will show [ CAl ] and the UNIT PRICE display
will show [ done ].
10. The scale will then begin a lamp test. While the scale is counting back to zero, remove
the weights from the scale.
11. The Calibration procedure is finished.
Change Calibration Switch to Normal Position
Referring to the pictures on the previous page, perform the following steps:
1. Turn the scale power OFF, remove the commodity tray and set it aside. NOTE! If you
are operating the scale using AC power, grasp the scale so that you can hold the 2
housings together and remove the AC power cord also.
2. Turn the scale so that the rear display is towards you. Referring to picture “D”, lift the top
housing off the bottom and tip the rear of it forward (away from you). To avoid damaging
the keypad cable, only lift the housing up enough to clear the internal components.
3. While holding the top housing up with one hand, locate the calibration switch on the front
PC board. To locate the calibration switch, look for the black plastic portion of the
calibration switch as shown in picture “E”.
4. Referring to picture “F”, use the 1/8 or 3/16 slotted screwdriver to slide the calibration
switch to the Normal position. NOTE! A slight clicking noise can be heard when the
switch position is changed.
5. Lower the top housing onto the lower housing.
6. Grasping the scale so that you can hold the 2 housings together, turn the scale up side
down and with the rear display towards you.
7. Referring to picture “C” for the hole locations, reinstall the 4 screws securing the top
housing to the bottom housing.
8. Turn the scale right side up, and then rotate it to the normal position (keypad facing you).
9. Install the 4 blue dust shields around the weighbridge posts, and then place the
commodity tray on the scale. See picture “A”.
10. The scale is now ready for normal operation.
8529-M635-O1  DS-Series
Page 8
CALIBRATION SEAL INSTALLATION
If your DS Series scale is used in a commercial application it must be tested and sealed by
your local weights and measures official. The DS Series is designed to accept a lead and wire
security seal to prevent unauthorized access to the calibration adjustments. Refer to the figure
below for details on the installation of the seal.
 Thread the sealing wire through the hole in the post in the center of the scale as shown.
 Pull the wire tight and install the lead seal.
 The scale housings cannot be separated without damaging the seal.
Lead and Wire Seal
(Bottom View of Scale)
8529-M635-O1  DS-Series
Page 9
ERROR AND STATUS DISPLAYS
The DS Series Price Computing Scale is equipped with a diagnostic software program that
tests various portions of the instrument's circuitry and verifies proper operation. Should a
problem be detected, an error or status message will be displayed alerting the operator to that
condition. The following lists these errors and status displays and their meaning:
Display
Meaning
Left Arrow - This symbol is used by the scale to indicate which annunciator is
active. Note that this applies to the annunciator labels on the display overlay.
--OL-
CENTR
Over Load - Indicates the scale weight capacity has been exceeded. The
error beeper will also sound on and off until the Over Load condition is
corrected.
Centr - Indicates the scale is resetting the weight on the scale to zero.
Low Battery - Indicates the internal battery requires charging.
BEFORE YOU CALL FOR SERVICE
Your DS Series Price Computing Scale has been designed to provide you with years of
trouble-free operation. In spite of this, troubles sometimes happen. Before calling for service
assistance you should make some initial checks to verify that a problem does exist. The
following describes several types of symptoms along with suggested remedies.
PROBLEM
Display does not turn on
POSSIBLE SOLUTIONS
AC Operation:
 Is the AC power cord fully inserted into the wall receptacle?
 Check wall receptacle for proper AC power. Try another
electrical appliance in the same receptacle. Does it work?
 Check the circuit breaker.
 Has there been power failure
Battery operation:
 Check if battery is installed and installed correctly.
 Is battery discharged? Recharge or replace battery.
Incorrect weight
displayed


Insure that the scale platform isn't touching an adjacent
object.
Have proper operation procedures been followed?
CARE AND CLEANING
 DO NOT submerge the scale in water, pour or spray water directly on it.
 DO NOT use acetone, thinner or other volatile solvents for cleaning.
 DO clean the indicator with a damp soft cloth and mild non-abrasive detergent.
 DO remove power before cleaning with a damp cloth.
 DO clean and store the scale in a plastic bag (in a dry environment) if the scale is not
going to be used for some time. A desiccant packet may be included to prevent
moisture build up.
 DO recharge the internal battery every three months while in storage.
8529-M635-O1  DS-Series
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8529-M635-O1  DS-Series
Page 11
8529-M635-O1  DS-Series
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