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DS-671
When Accuracy Counts
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74162
DS-671 SERIES OPERATING MANUAL
INDEX
SECTION PAGE
NUMBER
1.0 GENERAL 2-3
1.1. Features 2
1.2. Warranty 2
1.3. Keyboard & Display Layout 3
1.4. Key Switch Information 3
1.5. Indicator Lamp Information 3
2.0 SPECIFICATIONS 4
2.1. Technical Specifications 4
Appearance
2.2.
3.0 INSTALLATION 6
3.1. Un-packing 6
3.2. Inspection 6
3.3. Re-packing 6
5
4.0 DS-671 OPERATIONAL PROCEDURES 7-8
4.1. Power On/Off 7
4.2. Automatic Shut Off 7
4.3. Re-zero 8
4.4. Tare Reduction 8
5.0 MAINTENANCE MODE 9-12
5.1. Spec Entry 9
5.2. Spec Entry and Span Adjustment 10
5.3. Internal Count and A/D Count Display 10
5.4. Spec List 11
5.5. Error Messages 12
5.6. Maintenance, Calibration, Test Procedures & Service 12
Warranty 13
1
1.0. GENERAL
1.1. Features
• Wipe down digital weighing scale
• Quick response to weight changes
• Capacity: 100 oz, 200 oz, 600 oz., 1.5 lb, 3 lb, 6 lb, 15 lb, 30 lb, 60 lb
• Resolution:
A. Display resolution1/1000 (multi range) internal res. 1/6000
B. Display resolution1/3000 (single range) internal res. 1/24000
• Low power consumption: 6 x C cell batteries for more than 200 hours of
continuous use
• Fast self test procedure when power on
• Selectable automatic shut off time that prolongs battery life
• Two point low battery detect:
A. When battery is weak, the battery indicator will light
B. When the power from the battery becomes too low to weigh accurately, all displays
will shut off except the battery indicator. The power is shut off after 1 minute.
• Calibration by software
• High contrast LCD display
• 3 keys REZERO key, TARE key, ON/OFF key
• Stainless steel platform and indicator housing
2
1.3. Keyboard & Display Panel Layout
1.4. Key Functions
• REZERO Key Reset weight display to zero
• TARE Key Set or clear a tare
• ON/OFF Key Turn the power ON or OFF
1.5. Indicators Lamps
• Zero On when zero point is adjusted and when weight is stable
• Net On when tare reduction is performed
• Battery On when battery is weak
3
2.0. SPECIFICATIONS
2.1.1. Technical Specifications
This section includes a detailed listing of all pertinent specifications and parameters for the DS671 weighing scales. The system weighing accuracy is 0.03 %. All models meet or exceed the
requirements of OIML, Class III, and NIST Handbook, Number 44.
2.1.2. Operating conditions
• Power source 12VDC w/DC adapter or 9VDC w/6 “C” cell battery
• Operating temperature -10° C ≈ +40° C (OIML)
• Operating humidity 15 – 85% RH
• Power consumption 0.07w when 6V, 0.1w when 9V
2.1.3. Analog specification
• Input sensitivity 0.67mV/V- 10kg & 20kg, all other capacities 1mV/V
• Zero adjust range 40% Full Scale
• Zero balance range 10% Full Scale
• L/C applied voltage DC 5V
• Speed of A/D conversion 4 times /sec.
• Internal resolution 16000 or 24000
2.1.4. Display Specification
• Weight display 6 digits with ZERO, TARE, LOW BATTERY indication
• Spec Display 6 digits
• Decimal Point Spec Selectable
2.1.5. Dimensions
• Platter size 8 _ "L x 8 _ "W
• Overall size 11"L x 9 _ "W x 6 _"H
2.1.6. External connectors
• DC receptacle
4
2.2. Appearance
Bench model
Hanging scale with hook Hanging scale with pan
5
3.0. INSTALLATION
This section provides the information required for installing this weighing system for operation.
The following steps accomplish installation.
1. Unpacking
2. Set-up Procedure
3.1. Unpacking
Each component of the DS-671 system is packed in a specially designed carton.
Remove each component from its carton, separate the component from its polystyrene shell
assembly and set aside. Inspect the carton interior to be sure that all accessories have been
removed from the carton. Inspect the carton inner panels for accessories.
NOTE:Be sure to repack all materials within the carton set. Store the cartons in a secure area so they can
be available whenever future shipment of the scale is required.
3.2. Inspection
Immediately after unpacking, a visual inspection of the scale should be performed. If any damage
has been incurred during transportation notify the shipper and Rice Lake Weighing Systems
immediately. Instructions for assessment of damage and further procedures will then be
determined.
3.3. Repackaging
If, at anytime, the DS-671 weighing scale must be returned for modification, calibration, or
repair, be sure that it is properly packed with sufficient cushioning materials. Whenever possible,
the original carton assembly should be retained for this purpose. Any damage caused by improper
packaging will not be covered by warranty.
3.4. Unlocking Procedure
The unlocking procedure is included on the next page. The DS-671 should be properly locked
whenever it is being transported. See next page for un-locking procedure.
6
4.0. DS-671 OPERATIONAL PROCEDURES
4.1. Power On/Off
1. Press [ON/OFF] key to turn on the scale.
The display will briefly show all segments, then blank for a second, then goes into weighing mode.
2. Press [ON/OFF] key to turn off the scale.
4.2. Automatic Shut Off Timer Setting
1. Begin with the scale turned off.
2. Press and hold the [ON/OFF] key for 3 seconds. This sets the Timer for 3 minutes.
3. Release the [ON/OFF] key when the display shows the number 3. The display will then briefly
show all segments, then blank for a second, then go into weighing mode.
1. Begin with the scale turned off.
2. Press and hold the [ON/OFF] key for 6 seconds. This sets the Timer for 10 minutes.
3. Release the [ON/OFF] key when the display shows the number 6. The display will then briefly
show all segments, then blank for a second, then go into weighing mode.
1. Begin with the scale turned off.
2. Press and hold the [ON/OFF] key for 9 seconds. This sets the Timer for no auto shut off.
3. Release the [ON/OFF] key when the display shows the number 999. The display will then briefly
show all segments, then blank for a second, then go into weighing mode.
7
4.3. Re-zero
Example 1: Begin in the weighing mode with the scale showing 0.00 Example based on 60 lb. scale.
1. Place 20 lb. on the scale.
2. Press the [REZERO] key. The display will show all segments briefly, then go to 0.00
Example 2: Begin in the weighing mode with the scale showing 0.00 Example based on 60 lb. scale.
1. Place 25 lb. on the scale.
2. Press the [REZERO] key. The display will show all segments briefly, then go to 25.00. 25lb.
exceeds the 40% limit of the re-zero range.
4.4. Tare
Example: Begin in the weighing mode with the scale showing 0.00 Example based on 60 lb. scale.
1. Place 20 lb. on the scale.
2. Press the [TARE] key. The display will go to 0.00
3. Remove weight from scale. The display will go to -20.00
4. Press the [TARE] key. To clear the tare.
8
5.0. MAINTENANCE MODE
5.1. Specification Entry
Example: Begin in the weighing mode with the scale showing 0.00.
1. Press and hold [REZERO] key, while holding the [REZERO] key, press [TARE] [TARE] [ON/OFF]
then release the [REZERO] key. The display will show all 8’s while holding the [REZERO] key, when
the [REZERO] key is released the scale will be in the Maintenance Mode.
2. Press the [TARE] key. The display will show the software version.
3. Press the [TARE] key. The display will show S0 0 0 0 (spec 0 = 0 0 0.)
4. Press the [ON/OFF] key. To change spec data (0 0 0 – 1 11.)
Ex: Press [ON/OFF] S0 0 0 1, Press [ON/OFF] S0 0 1 0, Press [ON/OFF] S0 0 1 1.
5. Press the [TARE] key. To store spec data and advance to the next spec. S1 0 0 0.
6. Press the [REZERO] key. To save specs to memory and return to the weighing mode.
9
5.2. Specification Entry and Span Adjustment
Example: Begin in the weighing mode with the scale showing 0.00
1. Press and hold [REZERO] key, while holding the [REZERO] key, press [TARE] [TARE] [ON/OFF]
then release the [REZERO] key. The display will show all 8’s while holding the [REZERO] key, when
the [REZERO] key is released the scale will be in the Maintenance Mode. The display will show StE 00
2. Press the [TARE] key. The display will show the software version.
3. Press the [TARE] key. The display will show S0 0 0 0 (spec 0 = 0 0 0)
4. Press the [ON/OFF] key. To change spec data (0 0 0 – 1 1 1)
Ex: Press [ON/OFF] S0 0 0 1, Press [ON/OFF] S0 0 1 0, Press [ON/OFF] S0 0 1 1,
5. Press the [TARE] key. To store spec data and advance to the next spec. S1 0 0 0
6. Press the [TARE] key. To store spec data and advance to the next spec. S2 0 0 0
7. Press the [TARE] key. To store spec data and advance to the next spec. S3 0 0 0
8. Press the [TARE] key. The display will show CAL 00
9. No Weight Should Be On Platter. Press the [TARE] key. The display will show - - - - - - - while the
scale calibrates the zero point. When zero is calibrated the display will show
CAL SP
10. Place Capacity Weight On Platter. Press the [TARE] key. The display will show - - - - - - while the
scale calibrates the span. When span is calibrated the scale will return to the weighing mode. 60.00
Note: To exit maintenance mode, press the [REZERO] key at any step except when - - - - - - are
displayed.
5.3. Internal Count Display :
Example: Begin in the weighing mode with the scale showing 0.00.
1. Press and hold [REZERO] key, while holding the [REZERO] key, press [TARE] [TARE] [ON/OFF]
then release the [REZERO] key. The display will show all 8’s while holding the [REZERO] key, when
the [REZERO] key is released the scale will be in the Maintenance Mode. The display will show StE 00
2. Press the [ON/OFF] key. To display the Internal (Span) Count
3. Press the [ON/OFF] key. To display the Internal (Zero) Count
4. Press the [ON/OFF] key. To display the Internal(Span) Count
5. Press the [TARE] key. To store spec data and advance to the next spec. S1 0 0 0
10
5.4. Specification List
Spec no.
Bit 2
Bit 1 Bit 0
S0 Decimal Point Position
0 0 0 = no decimal point 1 0 0 = 5
th
digit (00.0000)
0 0 1 = 2nd digit (00000.0) 1 0 1 = 6th digit (0.00000)
0 1 0 = 3
0 1 1 = 4
S1 Decimal Point Type
0 = period
1 = comma
rd
digit (0000.00) 1 1 0 – 1 1 1 = not used
th
digit (000.000)
ZERO Lamp “ON”
0 = gross 0
1 = net 0
Zero Tracking when
Tare
0 = no , 1 = yes
S2 Minimum Display
0 0 0 = 1 0 1 0 = 5 1 0 0 = 20
0 0 1 = 2 0 1 1 = 10 101-111 not used
S3 Display Resolution
0 0 = 1/1000 (multi-Interval)
0 1 = 1/2000 (single-interval)
Multi-interval Setting
0 = net multi- interval
1 = gross multi-interval
1 0 = 1/3000 (single-interval)
1 1 = not used
S4
Swing Filter *V1.02
000 - Level 0 (No swing filter, for standard version)
001 - Level 1
010 - Level 2
011 - Level 3
100 - Level 4 (for hanging version)
101 - Level 5
110 - Level 6
111 - Level 7
S5 Not Used
S6 Auto Tare Clear V1.21
0=yes, 1=no
11
5.5. Error Message List
The following message will appear when an invalid operation is performed.
Message Remark Appropriate Operation
OF When displayed weight on scale exceeds capacity by
+9d, or weight is on platter when power up
UF When displayed minus weight >= 9d Re-zero scale, turn off
888888 A/D checking error or scale not stable on power up. Place scale on firm flat
ERROR Calibration is not correct, or A/D checking error on
power up
0.00
Low battery indication when input voltage is low Change batteries or
∇∇
∇∇
∇∇
∇∇
Weight display blanks when voltage is below minimum
level. Lowe battery indication will go off as the battery is
drained
Remove weight from
scale
and on
surface and level it.
Repeat calibration
procedure
check power supply
Change batteries or
check power supply
5.6. Maintenance, Calibration, Test Procedure & Service
This section contains information and instructions concerning maintenance of the DS-671
Weighing Scale.
Preventive maintenance consists of periodically cleaning the external surfaces of the instrument
and should be performed as often as operating conditions warrant.
The calibration procedure is designed to be an aid in maintaining the scale accuracy within
specifications. The calibration procedure may also serve as a performance test procedure.
CAUTION: DO NOT ATTEMPT ANY SERVICE WHILE THE INSTRUMENT
IS CONNECTED TO THE POWER SOURCE.
5.6.1. Maintenance Procedures
5.6.1.1. EXTERIOR MAINTENANCE
The exterior surfaces of the counting scale can be easily cleaned using soap and water.
12
For grease or other difficult spots, a chlorothane or naptha based cleaner may be used.
5.6.1.2. Internal Maintenance
Internal maintenance is not normally required and if it is, should not be attempted except
by a qualified, authorized service technician.
5.6.2. Calibration
The following procedure should be followed periodically (every six to twelve months is
suggested) to determine that the scale is functioning in all modes.
a. Electrical
Follow section 4.0 through all its steps.
b. Accuracy
Weighing: The scale weighing accuracy can be determined by applying various known
weights to the platform. Because of the scale's very high accuracy, only weights that are
certifiably more accurate than the scale's specifications should be used in testing for
accuracy. (NIST class "F" or higher)
Since the scale owner does not normally have such certifiable weights available to him, it is suggested
that the customer call their authorized DIGI dealer.
5.6.3. Service & Repair
No service or repair should be attempted except by qualified personnel, and not until it has been
positively determined that the weighing scale requires such service. All service should be done in a clean,
dry, dust-proof area.
13
DS-671 Limited Warranty
Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a
Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed
by the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects
in materials and workmanship for two (2) years.
RLWS warrants that the equipment sold hereunder will conform to the current written specifications
authorized by RLWS. RLWS warrants the equipment against faulty workmanship and defective materials. If
any equipment fails to conform to these warranties, RLWS will, at its option, repair or replace such goods
returned within the warranty period subject to the following conditions:
• Upon discovery by Buyer of such nonconformity, RLWS will be given prompt written notice with a detailed explanation
of the alleged deficiencies.
• Individual electronic components returned to RLWS for warranty purposes must be packaged to prevent electrostatic
discharge (ESD) damage in shipment. Packaging requirements are listed in a publication, “Protecting Your Components
From Static Damage in Shipment,” available from RLWS Equipment Return Department.
• Examination of such equipment by RLWS confirms that the nonconformity actually exists, and was not caused by
accident, misuse, neglect, alteration, improper installation, improper repair or improper testing; RLWS shall be the sole
judge of all alleged non-conformities.
• Such equipment has not been modified, altered, or changed by any person other than RLWS or its duly authorized repair
agents.
• RLWS will have a reasonable time to repair or replace the defective equipment. Buyer is responsible for shipping charges
both ways.
• In no event will RLWS be responsible for travel time or on-location repairs, including assembly or disassembly of
equipment, nor will RLWS be liable for the cost of any repairs made by others.
THESE WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. NEITHER RLWS NOR DISTRIBUTOR WILL, IN ANY EVENT,
BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
RLWS AND BUYER AGREE THAT RLWS’S SOLE AND EXCLUSIVE LIABILITY HEREUNDER
IS LIMITED TO REPAIR OR REPLACEMENT OF SUCH GOODS. IN ACCEPTING THIS
WARRANTY, THE BUYER WAIVES ANY AND ALL OTHER CLAIMS TO WARRANTY.
SHOULD THE SELLER BE OTHER THAN RLWS, THE BUYER AGREES TO LOOK ONLY TO
THE SELLER FOR WARRANTY CLAIMS.
No terms, conditions, understanding, or agreements purporting to modify the terms of this warranty shall have any legal effect unless
made in writing and signed by a corporate officer of RLWS and the Buyer.
© 2002 Rice Lake Weighing Systems, Inc. Rice Lake, WI USA. All Rights Reserved.
RICE LAKE WEIGHING SYSTEMS
• 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 • USA
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