Rice Lake DI-28SS User Manual

DI-28SS Limited Warranty

When Accuracy Counts

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 non-conformity, RLWS will be given prompt

written notice with a detailed explanation of the alleged deficiencies.

• Individual electronic components returned to RLWS for warranty purposesmust

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 non-conformity

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 INCIDEN-

TAL 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.

DI-28SS

Bench ScaleBench Scale

Bench Scale

Bench ScaleBench Scale

Operation ManualOperation Manual

Operation Manual

Operation ManualOperation Manual

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

74263

NOTES:

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8.1.3 Continued

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. (NBS 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.

8.2. 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.

L/C Connector

:::: :::: :::: :::: :::: :::: ::::

Wht Yel Grn Red Shld Rs + Rs -

- Ex - Sig +Sig +Ex Shld +Sen - Sen

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DI-28SS SERIES OPERATING MANUAL

SECTION

1.0. GENERAL 2

1.1. Description 2

1.2. Warranty 3

2.0. SPECIFICATIONS 4

2.1. Platforms & Capacities 4

2.2. Technical 5

3.0. INSTALLATION 6

3.1. Unpacking 6

3.2. Inspection 6

3.3. Repackaging 6

4.0. ELECTRICAL TEST 7

4.1. Set-Up Procedure 7

4.2. Keyboard & Display Test 7

4.3. Control Panel 8

4.3.1. Lamps 8

4.3.2. Keys 8

5.0. OPERATION PROCEDURE 9

5.1. Power On 9

5.2. Tare Subtraction 9

5.2.1. One Touch Tare 9

5.2.2. Digital Tare 9

5.3. Battery Life Check 10

5.4. Set Point Value Entry 11

5.5. Changing Weight Units 12

6.0. PROGRAMMING 13

6.1. DI-28SS Key Function Summery 13

6.2. Internal Count 14

6.3. Set Up And Calibration 15

6.4. Specification List 16-17

6.5. Span Adjustment 18-19

6.6. Span Enable Switch 20

7.0. DI-20 OPTIONS 21

7.1. Battery Option 21

7.2. Set Point Output, & Setpoint Wiring 21-22

7.3. RS-232, RS-232 Wiring 21
RS-232 Communication protocols 22-30

8.0. MAINTENANCE, CALIBRATION, TEST

8.1. Maintenance Procedures 31

8.3. Load Cell Wiring 33

INDEX PAGE NUMBER

PROCEDURE, SERVICE

8.2. Service & Repair

31

32

[1]

DI-28SS OPERATING MANUAL

1.0. GENERAL

1.1. Features

The DI-28SS Indicator offers a practical solution to a wide range
of weighing applications. There are a variety of weight capacities
and increments available. The display resolutions selectable from
1/2000 to 1/10000. It features RS-232 & 4 Setpoint outputs
(factory options) and keyboard calibration with auto-span. It
operates on 6 “D” cell batteries or with its AC/DC adapter. The
DI-28SS is able to support single load cells that have an output
range of 0.4mV/V to 4.0mV/V and is able to support up to 4 load
cells when used with the AC/DC adapter. This indicator features
ON/OFF, REZERO, TARE, for both one touch and digital key
operation. For a list of platforms sizes and available capacities
see page 3.

This instruction manual will provide the user with all the
information necessary to understand, set-up and operate the DI­28SS scale. Included in this manual are descriptions,
specifications, drawings, and operating instructions.

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8.0. MAINTENANCE, CALIBRATION, TEST PROCEDURE & SERVICE

This section contains information and instructions concerning
maintenance of the DI-28SS weighing indicator.

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
LINES.

8.1. Maintenance Procedures

8.1.1. Exterior Maintenance

The exterior surfaces of the weighing scale can be easily cleaned
using soap and water. However, extreme caution should be used
so that there is no possibility of water penetration into the scale
electrical or mechanical sections. A damp cloth or sponge is
suggested. NEVER USE ACETONE, MEK, OR SIMILAR
SOLVENTS ON THE PLASTIC HOUSING AS THEY WILL
ETCH THESE SURFACES.

For grease or other difficult spots, a chlorothane or naphtha based
cleaner may be used. Never use any solvents on the front or rear
panels.

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2.0. SPECIFICATIONS

This section includes a detailed listing of all pertinent specifications and parameters
for each of the DI-28SS weighing scales. The system weighing accuracy is 0.02 %
for all models and they meet or exceed the requirements of OIML Class III and NIST
Handbook, Number 44.

2.1 Platforms

The following is a list of platforms :

Model Platform

Size/Platter

S-XL bench 12” x 14” x3” 1 LB. 5 LB. 10 LB. 25 LB. 50 LB.

S-SL bench

/ floor
S-TL floor 17” x 21” 150 LB. 300 LB. 500 LB. 1000 LB.
S-UL floor 24” x 28” 150 LB. 300 LB. 500 LB. 1000 LB.

S-PL floor 30” x 30”

S-PL floor 48” x 48”

13” x 17” 60 LB. 150 LB. 300 LB.

36” x 36”

48” x 72”
60” x 60”
60” x 84”

Ramps , Other Capacities And Stainless Steel Platforms Also Available

Choosing A Capacity
Display Resolution (=) Capacity

Decimal

Location

0.0000 1 1 / 2000 1lb,2.5lb,3lb.,5lb.,6lb,.

0.000 2 1 / 2500 10lb.,25lb.,30lb.,50lb.,

:Decimal Location (*) Minimum Weight (*)

Minimum

Weight

0.00 5 1 / 3000 60lb.,75lb.,100lb.,125lb

0.0 1 / 5000 150lb.,200lb.,250lb.,
0 1 / 6000 300lb.,375lb.,500lb.,

1 / 7500 600lb.,750lb.,1000lb.,
1/10000 1500lb.,2000lb.,2500lb.
3000lb.,3750lb.,5000lb.
6000lb.,7500lb.,10000lb

Display

Resolution

Example: dec. loc. (*) min. wt. (*) disp. res. = avail cap.

0.00 (*) 5 (*) 1 / 7500 = 375. 00 lb.
* Units can be programmed to primarily weigh in lb., oz., kg., g.,

Capacities

1000 lb. to 3000 lb.

2500 lb.

to

25000 lb.

Available

Capacities

or dwt.

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