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:

[33]

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

[32]

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.

[2]

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.

[31]

[30]

[3]

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.

[4]

[29]

[28]

2.2. SPECIFICATIONS Technical

2.2.1. Id Plate :

Model # DI-28SS
Serial #
Power Dissipation .3w
Voltage Battery size D 6x1.5v or 12v AC Adapter

2.2.2. Operating Conditions :
Power source : AC/DC adapter (12V, Digi
Model PS-100 only, or 6x 1.5V size D battery, alkaline
or rechargeable.

Temperature Range : -10° to +40° C.
Humidity : 15% to 85% R.H.
Power Consumption : 0.3 to 1.5 Watts.

2.2.3. Display Specifications Display Device: LCD (Liquid Crystal Display) Character Height, 25mm.

No. of Digits: 6 Digits (including minus sign

digit)

[5]

INSTALLATION

This section provides the information required for installation of
the DI-28SS weight indicator.
The following steps accomplish installation.

1. Unpacking

2. Set-up Procedure

3.1. Unpacking

Each component of the DI-28SS is packed in a specially designed
carton. Remove each component from the
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:

Store the cartons in a secure area so they can be available
whenever shipment of the scale is required.

3.2. Inspection

Immediately after unpacking, a visual inspection of the
instrument should be performed. If any damage has been
incurred during transportation the shipper and DIGI AMERICAS
should be notified immediately. Instructions for assessment of
damage and further procedures will then be determined.

3.3. Repackaging

If, at anytime, the DI-28SS weight indicator 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.

Be sure to repack all materials within the carton set.

[6]

ii) Manual method (SPEC 59 Bit 2 is 1)

No handshaking (SEPC 52 bit 3 is 0)

Press [ ↑ ] key to send data.

PC DI - 28

TEXT

[27]

Options (continued)

7.4.5. Communication Method

There are three methods of sending the data :
i) Stream

- Send the data immediately
ii) Manual

- Send the data when [↑] is pressed using
handshaking or no handshaking protocol.
iii) Command

- Send data when ACK code is received from remote
system using handshaking or no
handshaking protocol.

i) Stream method (SPEC 59 Bit 2 is 0)

This method will sending the data immediately.

PC DI - 28

[26]

TEXT

4.0. ELECTRICAL TEST

4.1. Set-up Procedure

This part of the procedure is used to verify proper operation of the
scale. Connect the AC power source, and press the [ON/OFF] key. At
turn-on, the display will momentarily show the version number then, all
digits from 0 to 9 in a “count-up” mode. Then the display will blank,
show all “8’s”, and enter the regular operating display.

If at any time the scale displays erratic data, it may be caused by a power
transient. Turn the scale “off” and momentarily unplug it from the wall
outlet. Then restart, by plugging the scale back in and pressing the

[ON/OFF] key.

4.2. Keyboard and Display

This part of the procedure is used to verify proper operation of various
switches and displays. The following functions will be tested in this
procedure:
A. Tare Entry
B. Digital Tare Entry

4.2.1. One Touch Tare

a. Press [REZERO] key, to rezero the scale.
b. Place the empty container on the scale and press the [TARE] key
once.

The Weight Display should now read zero with the empty container on
the scale.

4.2.2. Digital Tare Entry

a. Press the [REZERO] key. After resetting, the display will resd
zero.
b. Enter the number 0.2 by using the keyboard, select the digit to
change

using [ ←←←← DIGIT ] key, then press [ ↑↑↑↑ INCR ]key for the desired Tare
value. Then press the [TARE] key.

The Weight Display will show the weight entered with a negative sign
indicating that the weight displayed is a Tare Weight.

[7]

W

4.3. Control Panels

4.3.1. Keys

Key Name Functions

REZERO

O



TARE

T

DIGIT SELECT



INCREASE



ON/OFF

4.3.2. Lamps

Indicators Name Functions

O

NET NET LAMP

g GRAM LAMP

lb/kg LB/KG LAMP

BATTERY

LAMP

ZERO LAMP

[8]

Turn power on or off.

Reset the weight to zero.

Enter or clear tare value.

Select the digits to set tare or setpoint value.

Increase the value of tare or setpoint weight
on selected digit when setting data. Manual
transmit key for RS-232 output.

On when battery becomes too weak and
needs to be replaced/ recharged.

On when weight is stable at zero point.

On when tare is subtracted.

On when grams are used as weighing unit.

On when pounds are used as weighing unit.

(a) Header Send As Text

S

S
T
X

CR N
O
H

- 0 1 . 2 3 0 CR T
E
T

W
E
I
G
H
T
:

0 0 0 . 4 5 0 CR L
A
R
E

E
I
G
H
T
:

F

NOTE:

✍ Net Weight and Tare Weight excluding a sign are
transmitted shifting to the right.

✍ When it is minus data (0x2D) or plus data (0x30), net and tare
weight data are transmitted setting 2DH or 30H into the left most
byte of each 7 byte data block.

✍ In case of over weight, the data will transmitted as follows:
0 OV 00000 CR 4??????? CR LF

✍ Decimal points are transmitted as[ , ] comma 0x2C or [ . ]
Period 0x2E (See Spec 01 bit 3)

[25]

T

N

Options (continued)

7.4.4. RS-232 Communication Protocols

7.4.4.1. Text Format

STX* Stable flag CR *Header Net weight CR *Header Tare

1 1 1 1 7 1 1 7 1 1

* Options set in Spec.

Stable Flag

(Send as code or text depend on SPEC 53 bit 0)

Stable flag Data

Stable SOH (01H) Net weight 0 (30H) NET WEIGHT :
Unstable NUL (00H) Tare 4 (34H) TARE WEIGHT :

Text

* Header

Text Data

0 ~ 9 30H ~ 39H

.
,

-

2EH
2CH
2DH

Header As Code As Text

weight

CR LF

Example: Net Weight = - 1.20 lb. Tare Weight = 0.45lb.

(a) Header Send As Code

S

S

CR 0 - 0 1 . 2 3 0 CR 4 0 0 0 . 4 5 0 CR L

T

O

X

H

F

[24]

5. Operation Procedure

5.1 Power On

PROCEDURE KEY OPERATION DISPLAY REMARKS

Connect DI-28SS to power supply.

1. Make sure nothing is on the
platform, and press [ON/OFF]
key.

888888

0.000 Ready for

Ver0.01 Show

Software
Version

000000 Segment

check starts.

weighing

5.2 Tare Subtraction

5.2a One touch tare

PROCEDURE KEY OPERATION DISPLAY INDICATOR

Stand-by status

Place tare weight on the

1.

platform.
Press [TARE] key.

2.

0

3. Remove the tare weight.

E

0

0.000

e.g. 0.010 kg 0.010

0.000

T

-0.010

♦

♦

♦ ♦

Note 1) To clear the tare weight, remove tare from the load
receptor then, press[TARE] key.

5.2b Digital tare entry

PROCEDURE KEY OPERATION DISPLAY INDICATOR

Stand-by status

Move cursor to the left two

1.

digits.

Set tare value by increasing

2.

the value.

3. Enter the tare value.

Note 1) To clear the tare weight, press [TARE] key.

Note 2) “0” and “2” means that the cursor is blinking.

(When the tare weight is known)

0.000

,

 



,



T

t00.0”0”0

t00.0”2”0

-0.020

0

♦

♦ ♦

[9]

ET

5.3. Battery Life Check

The battery life can be checked

PROCEDURE KEY OPERATION DISPLAY INDICATOR

Stand-by status

1. Press [TARE],
[], [TARE] key
while pressing [RE-
ZERO] key.

2. Press [TARE] key
to beback to weighing
mode.

The number of boxes in the display indicates the battery power. When batteries are fully charged,
6 boxes appear. As the battery is running out of power, the number of boxes will decrease
gradually.

0.000

0

T

+ , ,

0.000



T

T

0

♦

♦

NET

[10]

Options (continued)

7.4.3. Spec Setting

SPEC 52 Bit 2 Send STX before text

0 No 1 Yes

SPEC 52 Bit 3 Handshaking for RS232 output

0 No 1 Yes

SPEC 53 Bit 0 Send Header as text

0 No 1 Yes

SPEC 53 Bit 1 RS232C data sending method

0 Send immediately 1 After data is stable

SPEC 53 Bit 2 RS232 data format

0 Without header 1 With header

SPEC 53 Bit 3 Stable flag in RS232C

0 Without stable flag 1 With stable flag

SPEC 54 Bit 0, 1 and 2 RS232C baud rate

0 0 0 1200 0 1 0 4800 1 0 0 19200
0 0 1 2400 0 1 1 9600

SPEC 54 Bit 3 RS232C output

0 Disable 1 Enable

SPEC 55 Bit 0 RS232C data length

0 7 bit 1 8 bit

SPEC 55 Bit 1 RS232C stop bit

0 1 bit 1 2 bits

SPEC 55 Bit 2 and 3 RS232C parity bit

0 0 No parity 0 1 Odd 1 0 Even

SPEC 59 Bit 0 and 1 RS232C time out error

0 0 1 sec 1 0 5 sec
0 1 3 sec 1 1 10 sec

SPEC 59 Bit 2 Stream / Manual method

0 Stream 1 Manual

SPEC 59 Bit 3 Remote trigger for RS232C

0 Disable 1 Enable

[23]

N

SETPOINT Interface

An external voltage is needed to drive the devices like relays or
LEDs. The external voltage can go up to a max. 30V DC
depending on the device requirements, or a Vcc voltage, 5V
DC, can be used on PIN 8 as an external voltage.

7.2.2. Spec Setting

SPEC 52 Bit 0 Set point control

0 Disable 1 Enable

SPEC 52 Bit 1 Set point output
0 Active high 1 Active low

7.2.3. How Set Points Work

The state where no set point is reached.

When set point 1 is reached, the relay at

set point 1 will be on (eg. 1 kg.)

Set Point 1

Set Point 2

Set Point 3

Set Point 4

Set Point 1

Set Point 2

Set Point 3

Set Point 4

When set point 2 is reached, the relays at set point 1
and set point 2 will be on (eg. 1 kg and 2 kg.)

Set Point 1

Set Point 2

_

_

_

External

+

External

+

External

+

5.4 Setpoint Value Entry

PROCEDURE KEY OPERATION DISPLAY INDICATOR

Stand-by status 0.000

1. Enter the setpoint
entry mode by pressing
[] three times while
pressing [RE-ZERO]
key.

2. Enter Setpoint 1
value by using [] and
[] keys.

3. Store the data.

4. Enter Setpoint 2
value by using [] and
[] keys.

5. Store the data.

6. Enter Setpoint 3
value by using [] and
[] keys.

7. Store the data.

8. Enter Setpoint 4
value by using [] and
[] keys.

9. Store the data.

Note: To exit from setpoint entry mode without storing the data, press [TARE] key instead of
[RE-ZERO] key.

0

+ , ,



,





, ,



, , ,











0



0



0





0

00.000









01.000

00.000

02.000

00.000

03.000

00.000

04.000

0.000 ♦

0

♦

ET g lb

[22]

[11]

Set Point 3

Set Point 4

5.5. Changing Weight Units (kg , g , lb)

PROCEDURE KEY

Stand-by status

1. Allow user to switch

OPERATION

5.000

between KG, g and lb.
(Assuming scale is
calibrated in KG.)

2. To switch to g
Press [REZERO] key

0

+

and hold followed by []
then release [REZERO]

3. To switch to lb
Press [REZERO] key

0

+

and hold followed by []
then release [REZERO]

4. To switch to kg
Press [REZERO] key

+

0



and hold followed by []
then release [REZERO]

DISPLAY INDICATOR

0





0.000

(Ex. 5kg)

5000

(Ex.
5000g)

11.023

(Ex.

11.023lb)

5.000

(Ex. 5kg)

♦

♦

ET g lb

♦

[12]

7.0. OPTIONS

7.1. Battery Options

The DI-28SS may be used with an A/C adapter or with batteries
for portable operation. The indicator requires 6 x 1.5V size D
battery. Alkaline or rechargeable batteries may be used.

Interface



7.2. SETPOINT Interface

4 setpoint signal can be output though Setpoint connector


 4 Setpoint Signal Output



RS-232C serial data output.
The data transaction method can be set for
continuous output, manual (by key entry), or
command(Inquiry from an external device).



Baud Rate: 1200/ 2400/ 4800/ 9600/ 19200
Start Bit: 1 bit
Stop Bit: 1/ 2 bit
Data Bit: 7/ 8 bit
Parity Bit: Even/ Odd/ None



CR (0DH) The end of data
LF (0AH) The end of text
0 - 9 (30H-39H) Numeric data

- (2DH) Minus
. (2EH) Decimal Point
STX (02H) Start of Text
SOH (01H) Weight stable flag
NUL (00H) Weight un-stable flag

P/S-100 RS-232 & Set-point L/C Connector

:::: ::::

ªªªª xxxx

Method: 24V Open Drain CMOS

7.4. RS-232C Interface

Protocol

Tex t Command

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

S

T
x
d

G

R
x
d

p

n

1

d

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

S

S

S

2

p

p
2

p

3

4

G

4

n

V

d

W
h
t

Y

G

R

r

e
l

e

n

d

[21]

S

R
hl
d

R

s

s

+

-

[20]

6.6. Span Enable Switch Check This Mode Is Provided To Check The Status of The Span Switch. The SPAN SWITCH is on the main board near the pre-amp housing and is labeled JP 1. See Figure on Page 19.

Accessing Mode

1. Press and hold down the [REZERO] key.

2. While holding , press the[TARE] key, the

[←←←← DIGIT] key, the [←←←← DIGIT] key.

3. Then release the [REZERO] key.

When Calibration is enabled Display Shows : S- ON

PROGRAM MODE

DI-28SS Key Function Summary

KEY REZERO TARE

INTERNAL COUNT

REZERO (D D T)

OPERATIONAL

SPECS

REZRO (D D D)

W & M SPECS

REZERO (D T D)

SPAN ADJUSTMENT

REZERO (D T T)

SET POINT

PROGRAMMING

REZERO ( I I I )

SPAN SWITCH

STATUS

REZERO (T D D)

BATTERY LIFE

CHECK

REZERO ( T D T)

D = ←←←←DIGIT I = ↑↑↑↑INCR

REZERO EXIT - - - - CHANGE

STORE &

INCREMENT

SPEC

STORE &

INCREMENT

SPEC

STORE / RDY

FOR CAL

STORE &

INCREMENT

SET POINT

- - - - - - - - - - - - - - - -

- - - - EXIT - - - - - - - -

EXIT INPUT 0 INPUT 1

EXIT INPUT 0 INPUT 1

EXIT SELECT

EXIT SELECT

←←←←

DIGIT

DIGIT

DIGIT

T = TARE

↑↑↑↑

INCREASE

MODE

INCREASE

NUMBER

INCREASE

NUMBER

[13]

6.2. Internal Count

This function is provided to check the internal count value from
the A/D (pre-amp)

To Enter Internal AD Count Mode

1. Press and hold down the [REZERO] key.

2. While holding , press the [←←←← DIGIT] key two times, the
[TARE] key once.

3. Then release the [REZERO] key.

In This Mode, Each Key Functions As Follows

[↑↑↑↑ INCREASE] key

Used to switch between internal
count and A/D Raw Data

[REZERO] key

Used to rezero the internal counts

[TARE] key

Used to exit from internal count mode

[14]

6.5.2. Calibration Procedure

PROCEDURE KEY OPERATION DISPLAY Remarks

1. Enter calibration
mode.

| 1

2. Enter the minimum
display.

3. Enter the capacity
weight.

4. Enter weight to be
used for calibration. (If
other than capacity.)

5. Set zero point.

6. Place weight on
platter from step 4.

7. Exit internal count
mode.

8. Rezero scale place
weight on scale to test
calibration.

[REZERO]
[←←←← DIGIT] [TARE]
[TARE]

[↑↑↑↑ INCR]

[REZERO]

[←←←←] [ ↑↑↑↑ ] [ ↑↑↑↑ ]
[ ↑↑↑↑ ] [ ↑↑↑↑ ] [ ↑↑↑↑ ]
[ ↑↑↑↑ ]

[REZERO]

[←←←←] [ ↑↑↑↑ ] [ ↑↑↑↑ ]
[ ↑↑↑↑ ] [ ↑↑↑↑ ] [ ↑↑↑↑ ]
[ ↑↑↑↑ ]

[REZERO]

[REZERO]

[REZERO]

[TARE]

[REZERO]

888888

| 2

[ 00.000
∇

[ 06.000
∇

〈 06.000
∇

〈 02.000
∇

CAL 0

Press and hold
[REZERO] key
while pressing

[DIGIT], [TARE],
[TARE] then release
[REZERO] key.

Press [↑↑↑↑ INCR] key.
(Ex. 0.002)

Press [REZERO] to
advance through
calibration

Press [DIGIT] once
and [↑↑↑↑ INCR] key six
times. (Ex. 6KG)
Press [REZERO] to
advance through
calibration

Press [DIGIT] once
and [↑↑↑↑ INCR] key six
times. (Ex. 2KG)

Press [REZERO] to
advance through
calibration

CAL SP

xxxxxx

xx.xxx

When calibration is
complete scale shows
internal count.

Press [TARE] key to
return to weighing
mode.

[19]

6.5.1. Span Adjustment This Mode Is Provided To Calibrate Scale

Accessing Calibration Mode

1. Press and hold down the [REZERO] key.

2. While holding , press the [←←←← DIGIT] key, the [TARE] key, the
[TARE] key.

3. Then release the [REZERO] key.

In This Mode, Each Key Functions As Follows

[↑↑↑↑ INCREASE] key
[←←←← DIGIT] key
[REZERO] key

Used to increase value of digit
Used to change digits as needed
Used to save changes and advance through

calibration

[TARE] key

Used to exit calibration mode without
saving changes

[18]

6.3. Set Up And Calibration

6.3.1. Specification Change

Function key for spec. change.

Accessing Operational Specs. (50 – 59)

1. Press and hold down the [REZERO] key.

2. While holding , press the [←←←← DIGIT] key three times .

3. Then release the [REZERO] key.

In This Mode, Each Key Functions As Follows

[←←←← DIGIT] key
[↑↑↑↑ INCREASE] key
[REZERO] key

[TARE] key

THE SLEEP TIMER IS LOCATED IN OPERATIONAL SPECS.
Spec.50 = sleep timer ( 0000 = none to 1111 = 15 min. )

6.3.2. Specification Change (Continued)

Function key for spec. change.

Accessing Weights & Measures Specs. (00 – 09 / 20 – 29)

1. Press and hold down the [REZERO] key.

2. While holding , press the [←←←← DIGIT] key, the [TARE] key, the[←←←←
DIGIT] key.

3. Then release the [REZERO] key.

In This Mode, Each Key Functions As Follows

[←←←← DIGIT] key
[↑↑↑↑ INCREASE] key
[REZERO] key

[TARE] key

Used to input 0
Used to input 1
Used to save the specification and increment to

the next specification
Used to exit from specification mode

Used to input 0
Used to input 1
Used to save the specification and increment to

the next specification
Used to exit from specification mode

[15]

6.4. DI- 28 Specification List

6.4.1. DI - 28 W & M Specs.

W & M SPECS. PRESS AND HOLD REZERO THEN PRESS (D - T - D)

Spc. No. BIT 3 BIT 2 BIT 1 BIT 0

Spec. 00 Not Used
Spec. 01

Spec. 2 Not Used
Spec. 3

Spec.
04-09
Spec. 20

Spec. 21

Spec.
22-23
Spec. 24 load cell sensitivity (mv/V)
0000 = 4.00mV/V

Spec. 25 Not Used Not Used

Spec.
26-27
Spec. 28 Not Used

Spec. 29 Not Used

Comma or
Dec. Pt.
0 =comma,
1= dec.pt.

Change

Weight Units

0 = no,

1 = yes

Tare
Accumulate
0 = no,1 = yes
One Touch
Tare Clear
0 = no,1 = yes

0001 = 3.75mV/V
0010 = 3.50mV/V
0011 = 3.25mV/V

Not Used

Scale Type

0 = kg ,

1 = lb

Not Used

Rezero In
Tare
0 = no,
1 = yes

0100 = 3.00mV/V
0101 = 2.75mV/V
0110 = 2.50mV/V
0111 = 2.25mV/V

Minus Weight
0 = 9 ext.
increments,
1 = No Limit

Decimal Point Position

00 = no dec.pos.
01 = one dec.pos.

10 = two dec.pos.
11 = three dec.pos.

Internal Count

When Span SW

off

0 = no, 1 = yes

Not Used

Digital Tare
0 = no, 1 = yes

Not Used Not Used

Not Used

1000 = 2.00mV/V
1001 = 1.75mV/V
1010 = 1.50mV/V
1011 = 1.25mV/V

Tare Limit
0= 50%, 1 = 100%

Ignore Span

Switch

0 = no, 1 = yes

Not Used

Zero Reset Range

0 =± 10% , 1 =±
100%

[16]

Not Used

1100 = 1.00mV/V
1101 = 0.80mV/V
1110 = 0.70mV/V
1111 = 0.60mV/V

Recall Zero

0 = no, 1 = yes

Re-Zero Range
0 = ± 2 % , 1 =
± 100%

6.4. DI - 28 Specification List (Continued)

6.4.2. DI - 28 Operational Specs.

OPERATIONAL SPECS. PRESS AND HOLD REZERO THEN PRESS (D - D - D)

Spc. No. BIT 3 BIT 2 BIT 1 BIT 0

Spec. 50 Sleep Timer
0000 = None

Spec. 51 Not Used

Spec. 52

Spec. 53

Spec. 54

Spec. 55

Spec.
56-58
Spec. 59

0001 = 1 Min.
0010 = 2 Min.
0011 = 3 Min.

Handshaking
for RS-232

0 = no, 1 = yes
RS-232 Stable

Flag

0 = without

flag

1 = with stable

flag

RS - 232

Output

0 = Disable

1 = Enable

Parity

0 0 = no parity 0 1 = odd

Remote
Trigger

0 = Disable

1 = Enable

0100 = 4 Min.
0101 = 5 Min.
0110 = 6 Min.
0111 = 7 Min.

Power Save
0 = no, 1 =
yes

Send STX

Before Text

0 = no,1 = yes

RS-232 Data

Format

0 = without

header

1 = with

header

0 0 0=1200 bps
0 1 1=9600 bps

1 0 = even

Communicatio

n Mode

0 = stream

1 = manual

1000 = 8 Min.
1001 = 9 Min.
1010 = 10 Min.
1011 = 11 Min.

Motion Detection
0 = strong ,
1 = weak

Set Point Output

0 = active low,

1= active high

Non-Stable

Output

0 = no, 1 = yes

Baud Rate
0 0 1 = 2400 bps
1 0 0 = 19200 bps

Stop Bit
0 = 1 bit
1 = 2 bits

Not Used

RS-232 Time Out

0 0 = 1 sec.
0 1 = 3 sec.

1100 = 12 Min.
1101 = 13 Min.
1110 = 14 Min.
1111 = 15 Min.

Animal Mode
0 = no, 1 = yes

Set Point
0 = disable,
1 = enable

Send Header As

Text

0 = no, 1 = yes

0 1 0 = 4800 bps

Data Length
0 = 7 bits
1 = 8 bits

1 0 = 5 sec.

1 1 = 10 sec.

[17]