Page 1
Model S750 Series
Operation & Set-up Manual
Revision 1.0
July, 2003
Contents subject to change without notice.
Salter Brecknell Weighing Products
1000 Armstrong Drive
Fairmont, MN 56031
Tel (800) 637-0529
Tel (507) 238-8702
Fax (507) 238-8271
E-mail: sales@salterbrecknell.com
Web: www.salterbrecknell.com.
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NOTE
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his/her own expense.
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TABLE OF CONTENTS
Page
Chapter 1: Introduction To The S750 Series Indicators.................................................................. 1-1
Chapter 2: Installation ..................................................................................................................... 2-1
2.1 ABS Enclosure (S750/S750-8)...................................................................................... 2-1
2.1.1 Connecting the weigh platform......................................................................... 2-1
2.1.2 Connecting the serial printer, remote display or computer .............................. 2-2
2.1.3 Connecting the power supply........................................................................... 2-2
2.2 Stainless Steel Enclosure (TI-S750S/S750S-8)............................................................ 2-3
2.2.1 Connecting the weigh platform......................................................................... 2-3
2.2.2 Connecting the serial printer, remote display or computer .............................. 2-4
2.2.3 Connecting the power supply........................................................................... 2-4
Chapter 3: Configuration ................................................................................................................. 3-1
3.1 Configuration Overview................................................................................................. 3-1
3.2 Setup (“F”) Menu........................................................................................................... 3-1
3.2.1 Entering the Setup Menu – ABS Enclosure ..................................................... 3-1
3.2.2 Entering the Setup Menu – Stainless Steel Enclosure .................................... 3-1
3.2.3 Navigating in the Setup Menu .......................................................................... 3-2
3.2.4 Notes on the Setup Menu ................................................................................ 3-3
3.2.5 Exiting the Setup Menu – ABS Enclosure........................................................ 3-3
3.2.6 Exiting the Setup Menu – Stainless Steel Enclosure....................................... 3-4
3.3 User (“A”) Menu............................................................................................................. 3-4
3.3.1 Entering the User Menu ................................................................................... 3-4
3.3.2 Navigating in the User Menu............................................................................ 3-4
3.3.3 Notes on the User Menu .................................................................................. 3-5
3.3.4 Exiting the User Menu...................................................................................... 3-6
Chapter 4: Setup Menu Descriptions and Procedures ................................................................... 4-1
4.1 Setup Menu Descriptions .............................................................................................. 4-1
4.2 Setup Menu Procedures ............................................................................................... 4-3
4.2.1 Custom Unit Multiplier (F11) ............................................................................ 4-3
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Chapter 5: User Menu Descriptions and Procedures ..................................................................... 5-1
5.1 User Menu Descriptions................................................................................................ 5-1
5.2 User Menu Procedures ................................................................................................. 5-2
5.2.1 ID Number Entry (A5)....................................................................................... 5-2
5.2.2 Line Feeds Entry (A6) ...................................................................................... 5-3
5.2.3 Time Entry (A10) .............................................................................................. 5-3
5.2.4 Date Entry (A13)............................................................................................... 5-4
Chapter 6: Calibration ..................................................................................................................... 6-1
6.1 Calibration Overview ..................................................................................................... 6-1
6.2 Zero Calibration (F16) ................................................................................................... 6-1
6.3 Span Calibration (F17) .................................................................................................. 6-1
6.4 View Calibration Values (F18)....................................................................................... 6-2
6.5 Key-in Zero Calibration Value (F19) ............................................................................. 6-2
6.6 Key-in Span Calibration Value (F20) ............................................................................ 6-3
Chapter 7: Operation....................................................................................................................... 7-1
7.1 Display........................................................................................................................... 7-1
7.1.1 Liquid Crystal Display (LCD) ............................................................................ 7-1
7.1.2 Light Emitting Diode (LED) Display.................................................................. 7-1
7.2 Keyboard ....................................................................................................................... 7-2
7.2.1 Function Keys................................................................................................... 7-2
7.3 General Scale Operation............................................................................................... 7-3
7.3.1 Weighing an item.............................................................................................. 7-3
7.3.2 Taring an item .................................................................................................. 7-3
7.3.3 Piece Counting ................................................................................................. 7-4
Chapter 8: Legal for Trade Sealing................................................................................................. 8-1
8.1 ABS Enclosure .............................................................................................................. 8-1
8.2 Stainless Steel Enclosure ............................................................................................. 8-1
Appendix A: Specifications ................................................................................................................ A-1
Appendix B: Serial Port Information................................................................................................... B-1
B.1 COM1 Modes ................................................................................................................ B-1
B.1.1 Full Duplex Mode ............................................................................................. B-1
B.1.1.1 Recognized Host Commands.......................................................... B-2
B.1.2 Print Ticket Mode ............................................................................................. B-2
B.2 COM2 Mode .................................................................................................................. B-3
B.2.1 Simplex Mode................................................................................................... B-3
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Appendix C: Determining Proper Span Gain (F2) ............................................................................. C-1
C.1 Span Gain Overview ..................................................................................................... C-1
C.2 Setting the initial value for span gain ............................................................................ C-1
C.3 Viewing the internal counts ........................................................................................... C-1
Appendix D: Displayed Error Codes.................................................................................................. D-1
LIST OF FIGURES
1-1 S750 Front Panel .................................................................................................................... 1-1
2-1 S750/ S750S-8 Rear Panel.....................................................................................................2-1
2-2 Color Codes for Shielded Load Cell Cable............................................................................. 2-1
2-3 Pin Assignments for the Load Cell Port .................................................................................. 2-1
2-4 Pin Assignments for the DSUB9 serial port connector ........................................................... 2-2
2-5 TI-S750S/S750S-8 Main Circuit Board Overview................................................................... 2-3
2-6 Connection Assignments for the Load Cell Terminal (J9) ...................................................... 2-3
2-7 Connection Assignments for all serial communication Terminals .......................................... 2-4
3-1 Setup Menu Key Assignments................................................................................................ 3-2
3-2 Setup Menu Chart................................................................................................................... 3-3
3-3 User Menu Key Assignments.................................................................................................. 3-5
3-4 User Menu Chart..................................................................................................................... 3-5
4-1 Setup Menu Key Assignments................................................................................................ 4-4
5-1 User Menu Key Assignments.................................................................................................. 5-2
6-1 Setup Menu Key Assignments................................................................................................ 6-1
7-1 S750-8/S750S-8 LCD Detail................................................................................................... 7-1
7-2 S750/S750S LED Display Detail............................................................................................. 7-1
7-3 Function Keys Layout ............................................................................................................. 7-2
8-1 S750/S750-8 ABS Rear Panel................................................................................................ 8-1
B-1 Cable Diagram for Indicator to IBM PC .................................................................................. B-1
B-2 Consolidated Controls Demand Mode.................................................................................... B-1
B-3 Print Ticket .............................................................................................................................. B-3
B-4 Cable Diagram for Indicator to Printer .................................................................................... B-3
B-5 Consolidated Controls Continuous Mode ............................................................................... B-3
LIST OF TABLES
1-1 S750 Series Product Matrix .................................................................................................... 1-1
4-1 Invalid Setup Selections for commercial applications............................................................. 4-3
6-1 Calibration Value Table........................................................................................................... 6-2
7-1 S750 Series Annunciator Definitions ...................................................................................... 7-2
C-1 Minimum Recommended Span Gain Table............................................................................ C-2
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CHAPTER 1: INTRODUCTION TO THE S750 SERIES DIGITAL INDICATORS
The S750 Series Digital Indicator is a general purpose, industrial grade weight indicator featuring piece
counting operation and a custom unit. Four models are currently available, distinguishable by display type
and enclosure type. Table 1-1 shows the S750 series product matrix.
All models operate identically, can readout up to 50,000 display divisions and can supply enough current
for up to 8-350Ω load cells. All setup parameters may be entered via the front panel keys, including
calibration.
If your Model S750 Series Digital Indicator is part of a complete floor scale or has been installed for you,
you may skip to Chapter 7 for operating instructions. Prior to using the indicator, please read this chapter
carefully and completely. Store the manual in a safe and convenient place so it will be available if you
have questions concerning the operation of the scale.
If you are an installer, the indicator's installation and wiring instructions are found in Chapter 2. The
indicator contains two main setup menus: The Setup (“F”) menu, which configures the indicator to your
weigh platform and the User (“A”) menu, which configures the serial communication port and enables
some user options. Chapter 3 gives an overview and explains how to use the five front panel keys to
maneuver and save settings in both menus. Chapters 4 and 5 explain the Setup and User Menu options,
respectively. Chapter 6 covers system calibration. Prior to installing the indicator, please read this manual
carefully and completely. Store the manual in a safe and convenient place so it will be available if you
have questions concerning the setup and operation of the scale.
MODEL DISPLAY TYPE ENCLOSURE TYPE
S750 LED (light emitting diode), 1.0" tall ABS, NEMA 12 rated
S750-8 LCD (liquid crystal display), 0.8" tall ABS, NEMA 12 rated
TI-S750S LED (light emitting diode), 1.0" tall Stainless Steel, NEMA 4X rated
TI-S750S-8 LCD (liquid crystal display), 0.8" tall Stainless Steel, NEMA 4X rated
TABLE 1-1: S750 Series Product Matrix
IMPORTANT NOTE: Piece counting is not available in the United States.
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FIGURE 1-1: S750 Front Panel
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CHAPTER 2: INSTALLATION
2.1 ABS ENCLOSURE (S750/S750-8)
For indicators contained in the standard ABS enclosure, the rear panel contains all connectors
necessary to make the appropriate connections to the weigh platform, printer, remote display and
power supply.
LOAD CELL
Port
Setup/Calibration Switch
Figure 2-1: S750/S750-8 ABS Enclosure Rear Panel
2.1.1 CONNECTING THE WEIGH PLATFORM
The indicators mounted in an ABS enclosure ship with a 15 ft shielded load cell cable for
connection to weigh platform’s load cell(s) or junction box.
1. Plug the cable’s 14-pin Centronics-type connector into the load cell port on the rear
panel of the indicator.
2. Wire the bare wires and shield to the weigh platform’s load cell(s) or junction box using
the color codes shown in Figure 2-2.
Color Wire Name
RED
BLK
GRN
WHT
+Excitation
- Excitation
+Signal
- Signal
DC Jack
Serial
Port
Figure 2-2: Color Codes for Shielded Load Cell Cable
3. If you do not wish to use the shielded load cell cable, you may use own, following the
pin assignments shown in Figure 2-3. (A 14-pin Male Centronics-type connector is
required).
Pin Nos. Pin Name
1/8
3/10
5/12
7/14
+Excitation
- Excitation
+Signal
- Signal
7
14
3
12 10 8
15
Figure 2-3: Pin assignments for the Load Cell Port
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2.1.2 CONNECTING THE SERIAL PRINTER, REMOTE DISPLAY OR COMPUTER
The S750 series indicator comes standard with two serial ports, designated COM1 and COM2.
COM1 is a full duplex, RS-232 port designed for connection to either a PC or a
serial printer. COM2 is a simplex, RS-232 / Passive 20 mA Current Loop port
designed for connection to a remote display.
For indicators housed in an ABS enclosure, both COM ports are wired to one physical connector,
a DSUB9 female. As a result, you must use a “Y” interface cable (not included) to
gain access to COM2. Figure 2-4 shows the serial port pinout. Refer to Appendix B
for some suggested cable diagrams. (A 9-pin pin Male D-type connector is
required).
1. Plug the serial printer or computer communication cable (not included) directly into the
DSUB9 serial port connector or into the port labeled COM1 on the “Y” interface cable.
2. Plug the remote display cable (not included) directly into the port labeled COM2 on the
“Y” interface cable.
Pin No. Pin Name
2
Receive Data
3
Transmit Data
4
Transmit Data
5
Signal Ground RS-232Both
7
CL + 20 mACOM2
8
CL – 20 mACOM2
Port
COM1
COM1 RS-232
Signal Level
RS-232
RS-232COM2
Figure 2-4: Pin assignments for the DSUB9 serial port connector
2.1.3 CONNECTING THE POWER SUPPLY
1. The indicator ships standard with an internal AC to DC adapter. Simply plug the AC line
cord into a standard wall outlet.
2. If the indicator was shipped with the optional external AC adapter, simply plug the AC
adapter into the indicator’s DC Power Jack first, and then plug into a standard wall
outlet. Make sure that the AC voltage appearing at the wall outlet matches the
input voltage marked on the AC adapter.
5 4
3
87
Front View
2
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2.2 STAINLESS STEEL ENCLOSURE (TI-S750S/S750S-8)
For indicators contained in a stainless steel enclosure, the rear cover must first be removed to
make the appropriate connections to the weigh platform, printer, remote display and power supply.
To remove the rear cover, simply remove the screws that secure it to the enclosure and set aside.
NOTE: The rear cover must remain off to access the Setup Menu and calibration procedures.
PIGGYBACK ADC BOARD ASSY
J9
S- E+S+E-
J5
P+ P-
J6
TXD RXD GND
J10
TX2 GNDJ7CL+ CL–
Figure 2-5: TI-S750S/S750S-8 Main Circuit Board Overview
2.2.1 CONNECTING THE WEIGH PLATFORM
1. Connect your shielded load cell cable (not included) to terminal J9 on the main board.
Connection assignments for the Load Cell Terminal (J9) are shown in Figure 2-6.
J9
S+
S– E–
Figure 2-6: Connection assignments for the Load Cell Terminal (J9)
E+
JP2
EPROM
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2.2.2 CONNECTING THE SERIAL PRINTER, REMOTE DISPLAY OR COMPUTER
The S750 series indicator comes standard with two serial ports, designated COM1 and COM2.
COM1 is a full duplex, RS-232 port designed for connection to either a PC or a
serial printer. COM2 is a simplex, RS-232 / Passive 20 mA Current Loop port
designed for connection to a remote display.
For indicators housed in a Stainless Steel enclosure, COM1 is realized in J6 while COM2 is
realized in both J10 (RS-232) and J7 (CL). Connection assignments for all serial
communication terminals are shown in Figure 2-7.
1. Connect your serial printer or computer communication cable (not included) to terminal
J6 on the main board.
2. Connect your remote display communication cable (not included) to terminal J10 or J7
on the main board
J6
TXD RXD GND
J10
TXD GND
J7
CL+ CL–
Figure 2-7: Connection assignments for all serial communication terminals
2.2.3 CONNECTING THE POWER SUPPLY
1. The indicator ships standard with an internal AC to DC adapter. Simply plug the AC line
cord into a standard wall outlet.
2. If the indicator was shipped with the optional external AC adapter, simply plug the AC
adapter into the indicator’s DC Power Jack first, and then plug into a standard wall
outlet. Make sure that the AC voltage appearing at the wall outlet matches the
input voltage marked on the AC adapter.
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CHAPTER 3: CONFIGURATION
3.1 CONFIGURATION OVERVIEW
The indicator contains two main setup menus: The Setup (“F”) menu which configures the indicator
to your weigh platform and the User (“A”) menu which configures the serial communication port and
enables some user options. The Setup and User menus consist of several menu selections, each with its
own sub-menu of choices.
To set up the indicator, you must first enter the appropriate menu mode. Once there, four of the front panel keys
become directional navigators to move around in the menus, and one key is used to save or SET the
selections.
3.2 SETUP (“F”) MENU
3.2.1 ENTERING THE SETUP MENU – ABS ENCLOSURE
4. Power off the indicator by unplugging the power source.
5. On the back cover, move the Setup/Calibration Switch to the opposite position.
6. Power on the indicator by plugging in the power source. The indicator shows ” F 1” to
indicate that you are in Setup Menu mode.
Note: Access to the Setup/Calibration Switch is inhibited if the indicator has been sealed for
commercial use. For more information, please refer to Chapter 8.
3.2.2 ENTERING THE SETUP MENU – STAINLESS STEEL ENCLOSURE
1. Power off the indicator.
2. Locate the slide switch on the rear cover and move it to the right.
NOTE: A metal plate held on by two drilled-head screws may conceal the slide switch.
3. Power on the indicator. The indicator shows ” F 1” to indicate that you are in Setup
Menu mode.
Note 1: Access to the back cover is inhibited if the indicator has been sealed for commercial
use. For more information, please refer to Chapter 8.
Note 2: If your indicator is an older model and does not have the slide switch on the rear
cover, follow these instructions instead:
TI-S750S
1. Remove the rear cover and locate jumper JP2.
2. Position the shunt block as shown at right.
Note: On certain units, the shunt block position will be exactly the opposite.
3. Power on the indicator. The indicator shows ” F 1” to indicate that you are in Setup
Menu mode.
JP2
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3.2.3 NAVIGATING IN THE SETUP MENU
Use the directional keys shown in Figure 3-1 to move around in the Setup Menu Chart
shown in Figure 3-2 on the following page.
1. To move to a new “F” heading, use the TARE (left) or PRINT (right) key to move right
or left in the Setup Menu Chart.
2. To move to the selection level, press the ZERO (down) key once. The current saved
selection is shown.
3. To view the available selections for the current “F” heading, use the TARE (left) or
PRINT (right) key to move through the selection field.
4. To save a new selection, press the NET/GROSS (Set) key .To exit without saving,
press the UNITS (up) key to return to the current “F” heading.
5. Repeat Steps 1 through 4 until the Setup Menu is programmed.
SET
Figure 3-1: Setup Menu Key Assignments
Continued =>
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F1
Grads
F2
Span Gn.
F3
Zero Band
F4
Zero RangeF5Mot. Band
F6
Dig. Filter
F7
Ovld. Limit
F8
Calib. Unit
0.5d 1d 3d0d 5d
25 50 75 100 150 200
500 1000 1500 2000 2500 3000 4000 5000 6000 8000 10000 12000 20000 30000
F9
Dsp. Div.
125
0 0.0 0.00 0.000 0.0000 00
F16
Zero Calib.
Press ZERO
key to begin
F10
Dec. Pt.
F17
Span Calib.
Press ZERO
key to begin
100% 1.9%
F11
CU Mult.
Press ZERO
key to begin
F18
Cal. View
Press ZERO
key to begin
1d 3d 5d 10d
F12
CU Enable
01
F19
Key-in Zero
Press ZERO
key to begin
Auto
1248
F13
PC Enable
01
F20
Key-in Span
Press ZERO
key to begin
Figure 3-2: Setup Menu Chart
0d 2% 1d 9d
32 64
12
16
40000 50000
F14
lb/kg Enable
01
lb kg
3.2.4 NOTES ON THE SETUP MENU
1. There is an F21 sub-menu present that is for FACTORY USE ONLY!
2. Detailed descriptions of the setup menu parameters can be found in Chapter 4 of this
manual.
3. The User (“A”) menu sub-menus appear when scrolling left or right from the “F” menu.
3.2.5 EXITING THE SETUP MENU – ABS ENCLOSURE
1. Power off the indicator by unplugging the power source.
2. On the back cover, move the Setup/Calibration Switch back to its original position.
3. Power on the indicator by plugging in the power source. The display will go through a digit check, then
settle into Normal Operating mode. All front panel keys will now return to their normal mode of operation.
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3.2.6 EXITING THE SETUP MENU – STAINLESS STEEL ENCLOSURE
1. Power off the indicator.
2. Move the slide switch on the rear cover back to the left.
3. Power on the indicator. The display will go through a digit check, then settle into Normal
Operating mode. All front panel keys will now return to their normal mode of operation.
Note: If your indicator is an older model and does not have the slide switch on the rear
cover, follow these instructions instead:
TI-S750S
1. Remove the rear cover and locate jumper JP2.
2. Position the shunt block as shown at right.
Note: On certain units, the shunt block position will be exactly the opposite.
3. Power on the indicator. The display will go through a digit check, then settle into Normal Operating
mode. All front panel keys will now return to their normal mode of operation.
3.3 USER (“A”) MENU
3.3.1 ENTERING THE USER MENU
1. Enter the Setup (“F”) menu by following the directions in Section 3.2.1 or 3.2.2.
2. Use the right or left directional keys shown in Figure 3-3 to move right or left in the
Setup (“F”) menu until the indicator shows ” A 1”.
3.3.2 NAVIGATING IN THE USER MENU
Use the directional keys shown in Figure 3-3 to move around in the User Menu Chart shown
in Figure 3-4 on the following page.
1. To move to a new “A” heading, use the TARE (left) or PRINT (right) key to move right or left in the
User Menu Chart.
2. To move to the selection level, press the ZERO (down) key once. The current saved selection is
shown.
JP2
3. To view the available selections for the current “A” heading, use the TARE (left) or PRINT (right) key
to move through the selection field.
4. To save a new selection, press the NET/GROSS (Set) key .To exit without saving, press the UNITS
(up) key to return to the current “A” heading.
5. Repeat Steps 2 through 5 until the User Menu is programmed.
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SET
Figure 3-3: User Menu Key Assignments
A1
Baud Rate
1200 2400 4800 9600
A6
Line Feeds Entry
Press ZERO
key to begin
A10
Time Entry
Press ZERO
key to begin
A14
Display Check
A2
Data Bits, Parity
8n 7O 7E
7n
A7
Handshaking
01
A11
Date Enable
01
A3
COM 1 Mode
01
A8
Time Enable
01
A12
Date Format
01
A4
ID No. Enable
01
A9
Time Format
A5
ID No. Entry
Press ZERO
key to begin
01
A13
Date Entry
Press ZERO
key to begin
Press ZERO
key to begin
Figure 3-4: User Menu Chart
3.3.3 NOTES ON THE USER MENU
1. Sub-menus A8 through A13 will not appear unless you have the Time and Date option.
2. Detailed descriptions of the user menu parameters can be found in Chapter 5 of this manual.
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3.3.4 EXITING THE USER MENU
1. Exit the User (“A”) menu by following the directions in Section 3.2.5 or 3.2.6. The display
will go through a digit check, then settle into Normal Operating mode. All front panel keys will
now return to their normal mode of operation.
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CHAPTER 4: SETUP MENU DESCRIPTIONS AND PROCEDURES
4.1 SETUP MENU DESCRIPTIONS
This section provides more detailed descriptions of the selections found in the Setup Menu Chart.
Factory-set defaults are shown in bold with a checkmark (√).
Table 4-1 shows the selections that are not allowed for “Legal-for-Trade” applications:
NAME/CODE DESCRIPTION CODE/VALUE
F1
Graduations
F2
Span Gain
F3
Zero Track
Band
F4
Zero Range
F5
Motion Band
Specifies number of full-scale graduations. Value should be
consistent with legal requirements and environmental limits on the
useful system resolution.
Span Gain is related to A/D integration time. The larger the span
gain, the higher the internal resolution, but the slower the update
speed. Note that the scale must be re-calibrated whenever this
parameter is altered. See Appendix C for more information.
Selects the range within which the scale will automatically zero. Note
that the scale must be in standstill to automatically zero. Selections
are in Display Divisions.
Selects the range within which the scale may be zeroed. Note that the
indicator must be in standstill to zero the scale.
Sets the level at which motion is detected by comparing the present
display update with the previous one. If motion is not detected for two
seconds or more, scale is in standstill and can process a Print or Zero
command. Maximum value varies depending on local regulations.
500 1,000
1,500 2,000
2,500 3,000
4,000 5,000
6,000 8,000
√ 12,000
10,000
20,000 30,000
40,000 50,000
25 50
75
100√
150 200
0d
0.5d√
1d
3d
5d
100%√
1.9%
1d√
3d
5d
10d
F6
Digital Filter
F7
Overload Limit
F8
Calib. Unit
Averages weight readings to produce higher stability. The higher the
filter number, the greater the stability but the slower the response
time. Choose 8 or 12 unless a very fast response is needed. Use the
“Auto” setting to automatically determine the filter length as you are
weighing.
Selects the desired formula which determines the point at which the
indicator shows overload. All selections are based on the primary unit
selected in F8.
"FS" = Full scale in primary units.
Selects the primary base unit to be used in the calibration process.
Also the default unit for normal operation.
"1" = primary unit is lb. "2" = primary unit is in kg.
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1 2
4 8
12 16
32
FS
FS + 2%√
FS + 1d
FS + 9d
√
1
2
Aut
o√
Page 20
NAME/CODE DESCRIPTION CODE/VALUE
F9
Display
Divisions
F10
Decimal Pt.
F11
Custom Unit
Multiplier
F12
Custom Unit
Enable
F13
Piece Count
Enable
F14
lb/kg
Conversion
Enable
F16
Zero
Calibration
Determines the desired weight increments. Value should be
consistent with legal requirements.
Determines location of the decimal point.
Actuates the function that allows you to enter a multiplier for the
custom unit. Scrolling down with the
procedure.
Used to enable or disable the custom unit whenever the UNITS key is
pressed. This feature must be disabled for commercial applications.
"0" = Disable custom unit "1" = Enable custom unit
Used to enable or disable the piece count feature. This feature must
be disabled for commercial applications.
"0" = Disable piece count "1" = Enable piece count
Used to enable or disable the lb to kg conversion whenever the
UNITS key is pressed.
"0" = Disable conversion "1" = Enable conversion
Places indicator into the zero calibration routine. Scrolling down with
the
key one level begins the procedure.
ZERO
key one level begins the
ZERO
√
1
2
5
0√ 0.0
0.00 0.000
0.0000 00
Press
to begin sequence
1√
0
1√
0
1√
0
1√
Press
to begin sequence
ZERO
ZERO
key
key
F17
Span
Calibration
F18
View Calibration
F19
Key-in Zero
F20
Key-in Span
F21
Factory Reset
Places indicator into the span calibration routine. Scrolling down with
the
Actuates the function that allows you to view both the zero and span
calibration value. The values displayed in this function are valid only
after Calibration (F16 & F17) has been successfully completed.
Scrolling down with the
Allows you to key-in known zero calibration value in case of memory
loss in the field. Scrolling down with the
the procedure.
Allows you to key-in a known span calibration value in case of memory loss in the field. Scrolling down with the
begins the procedure.
This sub-menu will reset all parameters in the “F” and “A” menu to the
default settings. USE WITH CAUTION!
key one level begins the procedure.
ZERO
key one level begins the procedure.
ZERO
key one level begins
ZERO
key one level
ZERO
Press
to begin sequence
Press
to begin sequence
Press
to begin sequence
Press
to begin sequence
Press the
key twice to
execute.
ZERO
ZERO
ZERO
ZERO
ZERO
key
key
key
key
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SUB-MENU TITLE SELECTIONS
F1
F3
F4
F5
F6
F12
F13
Table 4-1: Invalid Setup Menu selections for commercial applications
Graduations 12,000
20,000
30,000
40,000
50,000
Zero Tracking
Band (SAZSM)
Zero Reset
Range
Motion Band 3d
Digital Filter 1
Custom Unit 1
Piece Count 1
0d
5d
100% (Canada
Only)
5d
10d
2
4
4.2 SETUP MENU PROCEDURES
This section provides instructions for all of the Setup Menu procedures with the exception of the
Calibration procedures (F16 through F20) which can be found in Chapter 6.
4.2.1 CUSTOM UNIT MULTIPLIER (F11)
The custom unit multiplier is the conversion factor that you would multiply the calibration
unit by in order to obtain the custom unit of weight. For example, if your scale is
calibrated in pounds and you wish to display weight in ounces, you would enter in a
multiplier value of 16.0. The indicator automatically determines the proper display
increment for your custom unit.
1. While in the Setup mode, scroll to "F 11", then scroll down once using the ZERO
key to enter the custom unit multiplier menu.
2. The display will momentarily show "C U" for the custom unit, followed by the current
value for the custom unit multiplier with the decimal point.
3. Use the left or right directional keys (shown in Figure 4-1 below) to move the
decimal point position to the correct position. Pressing the PRINT key or the TARE
key will change the position of the decimal point.
4. After setting the correct decimal point position, press the NET/GROSS key to save
it.
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5. The display will momentarily show "SET", followed by a value with one flashing digit.
This value will be the current multiplier value with the decimal point position
programmed above.
6. Use the four directional keys (shown in Figure 4-1 below) to adjust the displayed
value to the actual custom unit multiplier value. Increase the flashing digit by
pressing the UNITS key. Decrease the flashing digit by pressing the ZERO key.
Pressing the PRINT key or the TARE key will change the position of the flashing
digit.
SETUP MODE KEY FUNCTIONS
UNITS
ZERO
NET
GROSS
SET
TARE PRINT
Figure 4-1: Setup Menu Key Assignments
7. After setting the exact value, press the NET/GROSS key to save the custom unit
multiplier value. The display will show "EndCU" momentarily, then revert back up to
F11.
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CHAPTER 5: USER MENU DESCRIPTIONS AND PROCEDURES
5.1 USER MENU DESCRIPTIONS
This section provides more detailed descriptions of the selections found in the User Menu Chart.
Factory-set defaults are shown in bold with a checkmark (√).
NAME/CODE DESCRIPTION CODE/VALUE
A1
Baud Rate
A2
Data Bits and
Parity
A3
COM1 Mode
A4
ID No. Enable
A5
ID No. Entry
A6
No. of Line
Feeds
Selects the baud rate for data transmission through both serial ports
(COM1 and COM2).
Selects the number of data bits and parity of serial transmission.
"8n" = 8 data bits with no parity bit and one stop bit
"7O" = 7 data bits with odd parity bit and one stop bit
"7E" = 7 data bits with even parity bit and one stop bit
"7n" = 7 data bits with no parity bit and two stop bits
Selects the mode of the COM1 serial port: Refer to Appendix B for
more information.
"0" = Full Duplex Mode
"1" = Print Ticket Mode
Allows the ID number to be disabled in the Print Ticket mode. Valid
only when A3 is set to “1”.
"0" = Disable the ID No. "1" = Enable the ID No.
Actuates the function that allows entry of a new ID No. Valid only
when A3 is set to “1”. Pressing the
begins the sequence.
Actuates the function that allows entry of the desired number of line
feeds to be printed in Print Ticket Mode. Valid only when A3 is set to
“1”. Pressing the
sequence.
key to scroll down one level begins the
ZERO
key to scroll down one level
ZERO
1200
4800 9600
√
8n
7O
7E
7n
0√
1
√
0
1
0 - 199999 (S750-
8)
0 - 999999 (S750)
123456√
0 - 99
5√
2400
√
A7
Handshaking
Enable
A8
Time Enable
A9
Time Format
A10
Time Entry
A11
Date Enable
Enables hardware handshaking for Print Ticket Mode. Valid only
when A3 is set to “1”.
"0" = Disable Handshaking "1" = Enable Handshaking
Allows the time to be disabled in the Print Ticket mode. Valid only
when A3 is set to “1”.
"0" = Disable the time printout "1" = Enable the time printout
Selects the printed format for current time. Valid only when A3 is set
to “1” and indicator contains Time and Date option.
"0" = AM/PM "1" = 24 Hr
Actuates the function that allows entry of the current time. Valid only
for indicators containing the Time and Date option. Pressing the
key to scroll down one level begins the test sequence.
ZERO
Allows the date to be disabled in the Print Ticket mode. Valid only
when A3 is set to “1”.
"0" = Disable the date printout "1" = Enable the date printout
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0√
1
√
0
1
√
0
1
Press
to begin sequence
√
0
1
ZERO
key
Page 24
NAME/CODE DESCRIPTION CODE/VALUE
A12
Date Format
Selects the printed format for current date. Valid only when A3 is set
to “1” and indicator contains Time and Date option.
"0" = mm/dd/yy "1" = dd/mm/yy
A13
Date Entry
A14
Display Check
Actuates the function that allows entry of the current date. Valid only
for indicators containing the Time and Date option. Pressing the
key to scroll down one level begins the test sequence.
ZERO
Actuates the function that illuminates all digit segments, decimal
points, and LCD annunciators in a test sequence. Pressing the
key to scroll down one level begins the test sequence.
5.2 USER MENU PROCEDURES
This section provides instructions for all of the User Menu procedures.
5.2.1 ID Number Entry (A5)
1. While in the User Menu mode, scroll to "A 5", then scroll down once using the
ZERO key to enter the ID Number menu.
8. The display will momentarily show "ID NO", followed by a value with one flashing
digit. This value will be the current ID number value.
9. Use the four directional keys (shown in Figure 5-1 below) to adjust the displayed
value to the actual ID Number value. Increase the flashing digit by pressing the
UNITS key. Decrease the flashing digit by pressing the ZERO key. Pressing the
PRINT key or the TARE key will change the position of the flashing digit.
ZERO
√
0
1
Press
ZERO
key
to begin sequence
Press
ZERO
key
to begin sequence
USER MODE KEY FUNCTIONS
UNITS
ZERO
NET
GROSS
SET
TARE PRINT
Figure 5-1: User Menu Key Assignments
10. After setting the exact value, press the NET/GROSS key to save the ID Number
value. The display will show "SET" momentarily, then revert back up to A5.
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5.2.2 LF (Line Feeds) Number Entry (A6)
1. While in the User Menu mode, scroll to "A 6", then scroll down once using the
ZERO key to enter the Line Feeds menu.
2. The display will momentarily show "LF", followed by the current line feeds value.
3. Use the four directional keys (shown in Figure 5-1 above) to adjust the displayed
value to the actual line feeds value. Increase the flashing digit by pressing the
UNITS key. Decrease the flashing digit by pressing the ZERO key. Pressing the
PRINT key or the TARE key will change the position of the flashing digit.
4. After setting the exact value, press the NET/GROSS key to save the line feeds
value. The display will show "SET" momentarily, then revert back up to A6.
5.2.3 Time Entry (A10)
If your indicator was ordered with the Time and Date option, it will keep track of the
current time for you, which can then be printed on the print ticket. Use this procedure to
set the current time, which must be set in military (24-hr) format. For example, for 9:00
AM, you would enter 900. For 5:00 PM, you would enter 1700.
1. While in the User Menu mode, scroll to "A 10", then scroll down once using the
ZERO key to enter the time entry menu.
2. The display will momentarily show "ENT TI", followed by a value with one flashing
digit. This value will be the current time in military (24-hr) format.
3. Use the four directional keys (shown in Figure 5-1 above) to adjust the displayed
value to the actual time value. Increase the flashing digit by pressing the UNITS key.
Decrease the flashing digit by pressing the ZERO key. Pressing the PRINT key or
the TARE key will change the position of the flashing digit.
4. After setting the exact value, press the NET/GROSS key to save the time value. The
display will show "End TI" momentarily, then revert back up to A10.
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5.2.4 Date Entry (A13)
If your indicator was ordered with the Time and Date option, it will keep track of the
current date for you, which can then be printed on the print ticket. Use this procedure to
set the current date, which must be set in mm/dd/yy format. For example, for January 7,
1998, you would enter 010798. For November 30, 1998 you would enter 113098.
1. While in the User Menu mode, scroll to "A 13", then scroll down once using the
ZERO key to enter the date entry menu.
2. The display will momentarily show "ENT DT", followed by a value with one flashing
digit. This value will be the current date in mm/dd/yy format.
3. Use the four directional keys (shown in Figure 5-1 above) to adjust the displayed
value to the actual date value. Increase the flashing digit by pressing the UNITS
key. Decrease the flashing digit by pressing the ZERO key. Pressing the PRINT key
or the TARE key will change the position of the flashing digit.
4. After setting the exact value, press the NET/GROSS key to save the date value.
The display will show "End DT" momentarily, then revert back up to A13.
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CHAPTER 6: CALIBRATION
6.1 CALIBRATION OVERVIEW
The indicator is calibrated by following the procedures embedded in F16 (Zero) and F17
(Span) of the Setup Menu. Each procedure enters a value into the indicator's non-volatile
memory - F16 the zero value (deadweight) and F17 the span value (test weight). The
minimum test weight that can be used is 1% of full-scale capacity. After the two
calibration procedures are executed successfully, you should record both calibration
values in Table 6-1 using the F18 View procedure.
In the unlikely event that either value is lost while in the field, the setup menu makes provisions for
re-entering these values via F19 and F20, thus eliminating the need for re-calibration with test
weights.
NOTE: This chapter assumes that the indicator is in Setup (“F”) Menu mode. If the indicator is not
in Setup Menu mode, refer to Chapter 3 for instructions.
6.2 ZERO CALIBRATION (F16)
1. While in the Setup mode, scroll to "F 16", then scroll down once using the ZERO key to enter zero
calibration menu. The display will momentarily show "C 0" followed by a value. This value is the
internal A/D count and can prove useful when trying to troubleshoot setup problems.
2. After making sure that there are no test weights on the platform, press the ZERO key again to zero
out the displayed value.
3. Press the NET/GROSS key to save the zero point value. The display will show "EndC0" momentarily,
then revert back up to F16. At this time, proceed to the F17 span calibration to complete indicator
calibration.
6.3 SPAN CALIBRATION (F17)
1. While in the Setup mode, scroll to "F 17", then scroll down once using the ZERO key to enter
span calibration menu.
11. The display will momentarily show "C 1" for the span calibration, followed by a value with one
flashing digit. This value will be zero with the Decimal Point parameter selected in F10. Place
the test weight on the weighing mechanism.
12. Use the four directional keys (shown in Figure 6-1 below) to adjust the displayed value to the
actual test weight value. Increase the flashing digit by pressing the UNITS key. Decrease the
flashing digit by pressing the ZERO key. Pressing the PRINT key or the TARE key will change
the position of the flashing digit.
SETUP MODE KEY FUNCTIONS
UNITS
ZERO
NET
GROSS
SET
TARE PRINT
Figure 6-1: Setup Menu Key Assignments
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4. After setting the exact value, press the NET/GROSS key to save the value.
5. If the calibration was successful, the display will show "EndC1" momentarily, then revert back
up to F17. At this time it is suggested that the calibration values be recorded for future use (see
Section 6.4).
6. If the calibration was not successful, one of the error messages below will appear. Take the
indicated action to correct the problem, then perform a new calibration.
"Err0" - The calibration test weight or the adjusted keyed-in weight is larger than the full
capacity of the scale. Change the calibration test weight or check the input data.
"Err1" - The calibration test weight or the adjusted keyed-in weight is smaller than 1% of the full
capacity of the scale. Change the calibration test weight or check the input data.
"Err2" - The internal resolution of the scale is not high enough to accept the calibration value.
Select a larger parameter for the Span Gain (F2). SEE APPENDIX C FOR MORE
INFORMATION.
6.4 VIEW CALIBRATION VALUES (F18)
Note: The values displayed in this procedure are valid only after a successful calibration has been
performed using F16 and F17.
1. While in the Setup mode, scroll to "F 18", then scroll down once using the ZERO key to enter View
calibration menu.
2. The display will momentarily show "CAL 0" followed by a value. This value is the zero calibration
value and should be recorded in the table below. Press any key to continue.
3. The display will momentarily show "CAL 1" followed by another value. This value is the span
calibration value and should also be recorded in the table below. Press any key to return to upper
level (F18).
INDICATOR ZERO CALIBRATION VALUE SPAN CALIBRATION VALUE
S/N:
Table 6-1: Calibration Value Table
6.5 KEY-IN ZERO CALIBRATION VALUE (F19)
Note: This procedure is intended for emergency use only in the case of non-volatile memory loss.
A valid zero calibration value, obtained from a successful F16 calibration procedure, must
be used.
1. While in the Setup mode, scroll to "F 19", then scroll down once using the ZERO key.
2. The display will momentarily show "CAL 0", followed by a flashing zero. Use the four
directional keys (shown in Figure 6-1) to adjust the displayed value to the zero calibration
value.
3. After setting the exact value, press the NET/GROSS key to save the value.
4. The display will show "E CAL 0" momentarily, then revert back up to F19.
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6.6 KEY-IN SPAN CALIBRATION VALUE (F20)
Note: This procedure is intended for emergency use only in the case of non-volatile memory loss.
A valid span calibration value, obtained from a successful F17 calibration procedure, must
be used.
1. While in the Setup mode, scroll to "F 20", then scroll down once using the ZERO key.
2. The display will momentarily show "CAL 1", followed by a flashing zero. Use the four directional
keys (shown in Figure 6-1) to adjust the displayed value to the span calibration value.
3. After setting the exact value, press the NET/GROSS key to save the value.
4. If the entered value is greater than zero, the display will show "E CAL 1" momentarily, then
revert back up to F20. If a value of zero is entered, the indicator will briefly show "Err 5", then
revert back to the screen described above in Step # 2.
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CHAPTER 7: OPERATION
7.1 DISPLAY
The Model S750-8/S750S-8 indicator utilizes a 6 digit LCD (Liquid Crystal Display) to display the
weight and system information while the Model S750/S750S indicator utilizes a 6digit LED (Light Emitting Diode) display. Typically, LCD’s are used for outdoor
applications while LED’s are used indoors where brightness is needed. Table 7-1
summarizes both types of display annunciators.
7.1.1 LIQUID CRYSTAL DISPLAY (LCD)
Figure 7-1 shows the display detail of the S750-8/S750S-8 LCD.
pcs
O
P T
GN
FIGURE 7-1: S750-8/S750S-8 LCD Detail
7.1.2 LIGHT EMITTING DIODE (LED) DISPLAY
Figure 7-2 shows the display detail of the S750/S750S LED display.
GROSS
NET
TARE
ZERO
FIGURE 7-2: S750/S750S LED Display Detail
lb
kg
lb
kg
PCS
STABLE
oz
%
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LCD
Annunciator
LED
Annunciator
MEANING
Î0Í
ZERO
N NET
G GROSS
T TARE
lb, kg, pcs lb, kg, pcs
STABLE
Better known as the “Center of Zero” annunciator, this light is active
whenever the displayed weight is within ± 0.25 divisions of true zero.
Indicates that the indicator is displaying net weight.
Indicates that the indicator is displaying gross weight.
Indicates that a tare weight has been established in the system.
Indicates the unit of the displayed weight. No unit means that the indicator is
displaying weight in the custom unit.
This light is on whenever the scale is stable.
TABLE 7-1: S750 Series Annunciator Definitions
7.2 KEYBOARD
The keyboard is composed of five function keys. Refer to Figure 7-3 for the overall layout and key
locations.
UNITS
ZERO
NET
GROSS
TARE
PRINT
7.2.1 FUNCTION KEYS
Units – This key toggles the indicator among the available weight units if enabled in the
Setup (“F”) menu. Available weight units include lb, kg, pieces and custom unit .See Chapter
4 for more information.
Zero - This key sets the indicator to display zero provided the following conditions are met:
1. The indicator is displaying Gross weight.
2. The displayed weight is within the zero reset range that is programmed in F4 of the Setup
(“F”) Menu.
3. The scale is not in motion.
4. The scale is not in overload (see Appendix D for error codes).
Net/Gross - This key toggles the indicator between Gross weight and Net weight only if a
Tare has been established.
Tare - This key is used to establish a Tare provided the following conditions are met:
1. The indicator is not at or below Gross zero.
2. The scale is not in motion.
3. The scale is not in overload (see Appendix D for error codes).
Print - This key is used to send weight information out to the COM1 serial port provided the
following conditions are met:
1. The scale is not in motion.
2. The scale is not in overload (see Appendix D for error codes).
FIGURE 7-3: Function Keys Layout
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7.3 GENERAL SCALE OPERATION
7.3.1 WEIGHING AN ITEM
1. Select the desired weighing unit by pressing the UNITS key until that unit is indicated on
the display.
2. If necessary, press the ZERO key to obtain a weight reading of zero.
3. Place the object to be weighed on the scale’s platter and allow the weight indication to
stabilize. If the item weight exceeds the scale’s weight capacity, it displays “SSSSSS”.
4. Read the weight shown on the display.
7.3.2 TARING AN ITEM
To weigh an item in a container, the weight of that container must first be subtracted from
the overall weight to obtain an accurate weight reading. This is known as taring.
1. Select the desired weighing unit by pressing the UNITS key until that unit is indicated on
the display.
2. If necessary, press the ZERO key to obtain a weight reading of zero.
3. Place the empty container on the scale’s platter and allow the weight indication to
stabilize.
4. Press the TARE key. The display shows zero weight and turns the NET annunciator on.
5. Place the material to be weighed in the container and allow the weight indication to
stabilize.
6. Read the weight shown on the display.
7. You may toggle between the gross weight and the net weight by pressing the
NET/GROSS key.
7.3.3 PIECE COUNTING
This mode is used to indicate the number of pieces of an item you have placed on the
scale’s platform and is accessed by pressing the UNITS key. To ensure accuracy, the parts
you are counting must be consistent in weight.
The indicator uses the sampling method to determine the average piece weight (APW) of
the items you wish to count. When sampling items, always count the parts in your hand and
place them on the platform all at once. If the APW of the items is too light or the total weight
of the sample is too light, accuracy cannot be guaranteed. You will get an error message,
but piece counting will still be allowed.
1. Press the UNITS key until “PCS” is indicated on the display. If a previous sample has
not been taken, the indicator will display “10 0”. If a previous sample has been taken,
the indicator will display the current number of pieces on the platform.
2. If the items you will be counting require a container, you must first tare the container
off by pressing the TARE key.
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3. If the screen does not show “10 0”, press the TARE key once. The indicator is
prompting you to place ten identical items on the platform.
NOTE: If you wish to change the sample number, simply press the NET/GROSS key
repeatedly until the desired sample number appears. Available choices are 5, 10, 25,
50 and 100.
4. Place the sample items on the platform all at once and allow the weight indication to
stabilize. Once this is done, the zero indicated after the sample number will change to
a “–“. For example, “10 –“.
5. Press the NET/GROSS key to take the sample. If the sample size is large enough, the
indicator now displays the number of pieces on the platform. If it does not, the
indicator briefly displays “Add” and automatically increments the sample size. Repeat
Step #4 with the new sample size.
NOTE: If the indicator continues to display “Add” even after sampling 100 pieces, the
unit weight of the items you wish to count is too light for your scale to process
accurately.
6. To exit the piece count mode, press the UNITS key. The APW will remain in scale
memory until you repeat Steps # 2 or #3.
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CHAPTER 8: LEGAL FOR TRADE SEALING
8.1 ABS ENCLOSURE
The S750/S750-8 indicator in the ABS enclosure can be sealed for commercial (Legal for Trade)
applications as follows.
1. Power off the indicator by unplugging the power source.
2. On the back of the indicator, locate the Setup/Calibration Slide Switch Cover Plate (see
illustration below).
3. Thread a wire security seal through both drilled head screws securing the calibration
switch cover.
LOAD CELL
Connector
DC Jack
Setup/Calibration Switch
Serial Port
Figure 8-1: S750/S750-8 ABS Rear Panel
8.2 STAINLESS STEEL ENCLOSURE
Indicators in the stainless steel enclosure can be sealed for commercial (Legal for Trade)
applications as follows.
1. Power off the indicator.
2. On the rear cover of the indicator, locate the calibration switch cover.
3. Thread a wire security seal through both drilled head screws securing the calibration switch cover
as well as the two drilled head screws holding on the rear panel.
Older units
1. Power off the indicator.
2. Locate the two adjacent drilled head screws securing the rear cover.
3. Thread a wire security seal through two drilled head screws securing the rear cover.
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APPENDIX A: SPECIFICATIONS
ANALOG SPECIFICATIONS
Full Scale Input Signal 30mV, including dead load
Minimum Sensitivity - Non H-44
Minimum Sensitivity - H-44
Input Impedance
Internal Resolution Approximately 260,000 counts
Display Resolution 50,000 display divisions max
Measurement Rate 10 Meas/sec, nominal
System Linearity Within 0.02% of FS
Calibration Method Software Calibration, with long term storage in EEPROM
Excitation Voltage
0.4 µV / grad
1.0 µV / grad
30MΩ, typical
+10VDC, 8 x 350Ω load cells
DIGITAL SPECIFICATIONS
Microcomputer Intel 80C32
Program Memory:
EEPROM:
Digital Filtering Software selectable
64K x 8, external to µC
64 x 16, external to µC
SERIAL COMMUNICATIONS
Serial Port Full Duplex, 1200, 2400, 4800, 9600 Baud
8 data bits, no parity, 1 stop bit
7 data bits, odd parity, 1 stop bit
7 data bits, even parity, 1 stop bit
7 data bits, no parity, 2 stop bits
OPERATOR INTERFACE
Display - S750/20 1" (25 mm) 7-segment, Led, 6 Digit
Display - S750-8/30 0.8" (19 mm) 7-segment, Liquid Crystal, 6 Digit
Additional Symbols Net, Gross, Stable, Tare, lb, kg, Pieces, Zero
Keyboard 5-key flat membrane panel
POWER
Standard AC Input 110/220 VAC , 50/60 Hz
Optional AC Adapter 12 VDC, 800mA Female
DC Power Consumption - S750/20
DC Power Consumption - S750-8/30
200mA + 30mA/350Ω Load Cell
80mA + 30mA/350Ω Load Cell
ENVIRONMENTAL
Operating Temperature
Storage Temperature
–10° to +40° C
-25° to +70° C
MECHANICAL
Overall Dimensions (L x W x H) –
S750/S750-8
Overall Dimensions (L x W x H) –
TI-S750S/TI-S750S-8
12.2” x 3.9" x 8.1" (310mm x 100mm x 205mm)
11.8” x 3.9" x 7.7" (300mm x 100mm x 195mm)
APPROVALS
NTEP Class III/IIIL COC 99-017
Canadian Legal Branch of
Metrology
European CE Mark Meets test requirements for:
Class III Approval No. AM-5305
EN55011for Class B ISM
EN50082-1 for Residential, Commercial and Light Industrial
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APPENDIX B: SERIAL PORT INFORMATION
B.1 COM1 MODES
B.1.1 FULL DUPLEX MODE
The Full Duplex Mode for COM1 provides a Demand serial transmission mode. The Demand mode
allows control from a host device, usually a PC, and can be activated by pressing
the PRINT key on the indicator’s front panel. Figure B-1 shows a suggested cable
diagram for interface to a PC. Figure B-2 shows the serial data format for the
Demand Mode.
INDICATOR PC
2 RXDRXD 2
TXD 3
S. GND 5
3 TXD
5 S. GND
4 DTR
6 DSR
8 CTS
DSUB9 DSUB9
FIGURE B-1. Cable Diagram for Indicator to IBM PC
<STX> <POL> xxxxx.xx <LB/KG> <GR/NT> <CR> <LF>
Start
Transmission
Polarity:
<SP> = Positive
"–" = Negative
Weight Data
<SP> <SP>
SpaceSpace
Units:
lb = pound
kg = kilogram
pc = pieces
cu = cusotm unit
Carriage
Return
Gross/Net:
GR = Gross
NT = Net
FIGURE B-2. Consolidated Controls Demand Mode
Line
Feed
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B.1.1.1 RECOGNIZED HOST COMMANDS
“P” - This command is sent to the indicator to print the indicated display. The
indicator will not respond if the scale is in motion, positive overload or
negative overload.
“Z” - This command is sent to the indicator to zero the scale. The indicator will not
respond if the scale is in motion, positive overload or negative overload. The
indicator will also not respond if it is not in gross mode or within the zero
range specified in F4 of the Setup Menu.
“T” - This command is sent to the indicator to tare the scale. The indicator will not
respond if the scale is in motion, positive overload or negative overload. The
indicator will also not respond if it displaying a negative gross value.
“G” - This command is sent to the indicator to revert to gross mode. The indicator
will not respond if the scale is in motion, positive overload or negative
overload. The indicator will also not respond if it is not in net mode.
“N” - This command is sent to the indicator to revert to net. The indicator will not
respond if the scale is in motion, positive overload or negative overload. The
indicator will also not respond if it is not in gross mode or a tare has yet to be
established.
“C” - This command is sent to the indicator to toggle among the configured units.
B.1.2 PRINT TICKET MODE
The Print Ticket Mode is designed specifically for a serial printer. Figure B-3 shows the fixed
format of the print ticket.
For printers with limited buffers, this mode supports DTR pin handshaking by enabling A7 in the
User Menu. The DTR pin from the serial printer is wired to the indicator’s RXD pin
which then functions as a CTS pin. Figure B-4 shows a suggested cable diagram
for interfacing to a serial printer. Refer to the printer’s user manual to confirm
whether or not it supports the DTR pin. The cable depicted in Figure B-4 can be
used even if the printer does not support the DTR pin.
NOTES:
1. The TARE and NET fields are not printed unless a tare has been established in the
system.
2. The ID number field is not printed if it is disabled in A4 of the User Menu.
3. The Time field is not printed if it is disabled in A8 of the User Menu.
4. The Date number field is not printed if it is disabled in A11 of the User Menu.
5. The PCS and APW fields are not printed unless the indicator is in piece count
mode.
Page C-1
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DATE 06/05/98
TIME 12:34 PM
ID 123456
GROSS 25.00 lb
TARE 1.48 lb
NET 23.52 lb
PCS 1234
APW 0.019060 lb
FIGURE B-3. Print Ticket
INDICATOR PRINTER
TXD 3
S. GND 5
DSUB9 DSUB25
3 RXDCTS 2
20 DTR
7 S. GND
FIGURE B-4. Cable Diagram for Indicator to Printer
B.2 COM2 MODE
B.2.1 SIMPLEX MODE
The Simplex Mode provides a Continuous serial transmission mode. The Continuous mode is
used to interface to computers, scoreboards, and other remote devices requiring
constant data updating. The transmission occurs at the end of each display
update. Figure B-5 shows the serial data format for Continuous Mode.
<STX> <POL> xxxxx.xx <L/K> <G/N> <STAT> <CR> <LF>
Start
Transmission
Polarity:
<SP> = Positive
"–" = Negative
Weight Data
Units:
L = pound
K = kilogram
P = pieces
C = custom units
Gross/Net:
G = Gross
N = Net
Carriage
Return
Line
Feed
Status:
<SP> = Valid
M = Motion
O = Over/under range
FIGURE B-5. Consolidated Controls Continuous Mode
Page C-1
Page 39
APPENDIX C: DETERMINING PROPER SPAN GAIN (F2)
C.1 SPAN GAIN OVERVIEW
The Span Gain parameter found in F2 of the Setup Menu is directly related to the ADC (Analog to
Digital Converter) integration time. This means that the lower the setting, the higher the number of
measurements per second. A span gain setting of 25 produces about 25 to 30 measurements per
second, while a span gain of 200 produces only about 3 or 4 measurements per second.
There is really no wrong setting for span gain – except in two cases. Using a low setting for a high
resolution, low output system could yield instability. Using a high setting in a high output system
could yield non-linearity.
C.2 SETTING THE INITIAL VALUE FOR SPAN GAIN
1. Determine the number of desired external graduations and choose the corresponding
value listed in Table C-1 under the number closest to your full-scale input range in
millivolts.
2. Enter the Setup Menu and save this number for the Span Gain parameter in F2.
3. Perform a system calibration. If the calibration proves unsuccessful, or you wish to view the
internal counts, proceed to the next set of instructions.
C.3 VIEWING THE INTERNAL COUNTS
1. Enter the zero calibration menu (F16) and follow steps 1 to 3, but do not save the zero point.
2. After pressing ZERO to zero the offset, place the test weight(s) on the platform. The displayed
count is the internal count. If the count remains on zero, check your load cell connections.
3. At full scale, the displayed count should be a minimum of 2 times the desired external
graduations. However, for maximum stability, a ratio of 6:1 or higher is recommended.
4. If the displayed count is large enough, remove the test weight(s), re-zero the indicator if
necessary, and proceed with the calibration. If the displayed number is not large enough,
increase the Span Gain to the next highest choice in the Setup Menu and re-calibrate.
Page C-1
Page 40
# of External Full Scale Input Range (mV/V)
Grads 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
500 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25
1,000 50 25 25 25 25 25 25 25 25 25 25 25 25 25 25
1,500 75 50 25 25 25 25 25 25 25 25 25 25 25 25 25
2,000 100 50 50 25 25 25 25 25 25 25 25 25 25 25 25
2,500 150 75 50 50 25 25 25 25 25 25 25 25 25 25 25
3,000 150 75 50 50 50 25 25 25 25 25 25 25 25 25 25
4,000 200 100 75 50 50 50 50 25 25 25 25 25 25 25 25
5,000 – 150 100 75 50 50 50 50 50 25 25 25 25 25 25
6,000 – 150 100 75 75 50 50 50 50 50 25 25 25 25 25
8,000 – 200 150 100 75 75 75 50 50 50 50 50 50 50 25
10,000 – – 200 150 100 100 75 75 75 50 50 50 50 50 50
12,000 – – 200 150 150 100 100 75 75 75 50 50 50 50 50
15,000 – – – 200 150 150 100 100 100 75 75 75 75 50 50
20,000 – – – – 200 200 150 150 150 100 100 100 75 75 75
30,000 – – – – – – 200 200 200 150 150 150 150 100 100
40,000 – – – – – – – – – 200 – – 150 150 –
Table C-1: Minimum Recommended (6:1) Span Gain Table
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APPENDIX D: DISPLAYED ERROR CODES
CODE MODE MEANING / POSSIBLE SOLUTION
Err 0
Err 1
Err 2
Err 3
Err 4
Err 5
Err 7
Normal Operating
Mode
Span Calibration
Mode (F17)
Span Calibration
Mode (F17)
Span Calibration
Mode (F17)
All Modes Non-volatile memory read error. One or more setup parameters have
All Modes Non-volatile memory write error. Indicator needs service.
Key-in Span
Calibration Mode
(F20)
Initialization No reading from the ADC. Make sure there is a load cell(s) connected to
Gross Overload. A weight greater than the rated capacity has been
applied to the scale. Remove the weight from the platter or try recalibrating the scale. Otherwise, check for a bad load cell connection or
possible load cell damage due to overloading.
Keyed-in weight value is less than 1% of full-scale capacity. Use a larger
test weight or check keyed-in value.
Keyed-in weight value is larger than full-scale capacity. Use a smaller test
weight or check keyed-in value.
There is not enough load cell signal to produce the internal counts
necessary to properly calibrate the scale. First check all load connections.
Use F16 mode to view internal counts. See Appendix C for more
information.
been lost.
You have attempted to enter a zero value for C1. Enter a known
calibration value greater than zero.
the indicator at start-up.
Err 9
Err 10
Err 11
Err 12
Err 13
Normal Operating
Mode
Initialization or Setting
Code Entry
Initialization Serial number mismatch. Re-enter setting code from product ID tag.
Initialization or Setting
Code Entry
Setting Code Entry Non-volatile memory is in write-protect mode. Toggle position of
Span calibration value has been lost. Re-calibrate the scale.
Indicator cannot read serial number. Indicator must be returned for
service.
Invalid setting code. Re-enter proper setting code from product ID tag.
Setup/Calibration Switch or JP2 jumper (See Chapter 3).
Note: Contact Service Department at Salter Brecknell for instructions on how to re-enter setting code.
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