Detecto 750 User manual

8555-M483-O1 Rev C x750 Owner’s 1
750
WEIGHT INDICATOR
With Body Mass Index Features
Owner’s Manual
Technical Support: Ph: 866-254-8261 [e-mail]

8555-M483-O1 Rev C x750 Owner’s
2

8555-M483-O1 Rev C x750 Owner’s 1
PRECAUTIONS
Before using this indicator, read this
manual and pay special attention to all
"NOTIFICATION" symbols:
IMPORTANT ELECTRICAL
WARNING
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
SITE PREPARATION REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Load Cell Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Serial and Bluetooth/Wi-Fi Interface Specifications . . . . . . . . . . . . . . . . . . . . . Page 4
Serial I/O Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Optional AC Power Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Battery Installation/Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
WEIGHING UNITS SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
KEYPAD FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Basic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Body Mass Index Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
ANNUNCIATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Basic Weighing Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Body Mass Index (BMI) Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Weight Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Serial ID Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
SETUP AND CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
SETUP REVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
EVENT COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
WEIGHT ON DEMAND FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
SERIAL PRINT COMMANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
ERROR AND STATUS DISPLAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
BEFORE YOU CALL SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22
CARE AND CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22
PARTS IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 23
APPENDIX A – INDICATOR MOUNTING BRACKETS . . . . . . . . . . . . . . . . . . . . Page 27
Serial Number ______________________
Date of Purchase ___________________
Purchased From ____________________
___________________________________
___________________________________
___________________________________
RETAIN THIS INFORMATION FOR FUTURE USE
I

8555-M483-O1 Rev C x750 Owner’s
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FCC COMPLIANCE STATEMENT
This equipment generates, uses and can radiate radio frequency, and if not installed and used
in accordance with the instruction manual, may cause interference to radio communications. It
has been designed within the limits for a Class A computing device pursuant to Subpart J of
Part 15 of FCC rules to provide reasonable protection against such interference when
operated in a commercial environment. Operation of this equipment in a residential area may
cause interference in which case the user will be responsible to take whatever measures
necessary to correct the interference.
You may find the booklet “How to Identify and Resolve Radio TV Interference Problems”
prepared by the Federal Communications Commission helpful. It is available from the U.S.
Government Printing Office, Washington, D.C. 20402. Request stock No. 001-000-00315-4.
PROPER DISPOSAL
When this device reaches the end of its useful life, it must be properly disposed of. It must not
be disposed of as unsorted municipal waste. Within the European Union, this device should be
returned to the distributor from where it was purchased for proper disposal. This is in
accordance with EU Directive 2002/96/EC. Within North America, the device should be
disposed of in accordance with the local laws regarding the disposal of waste electrical and
electronic equipment.
It is everyone’s responsibility to help maintain the environment and to reduce
the effects of hazardous substances contained in electrical and electronic
equipment on human health. Please do your part by making certain that this
device is properly disposed of. The symbol shown to the right indicates that
this device must not be disposed of in unsorted municipal waste programs.
COPYRIGHT
All rights reserved. Reproduction or use, without expressed written permission, of editorial or
pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the
use of the information contained herein.
DISCLAIMER
While every precaution has been taken in the preparation of this manual, the Seller assumes
no responsibility for errors or omissions. Neither is any liability assumed for damages resulting
from use of the information contained herein. All instructions and diagrams have been checked
for accuracy and ease of application; however, success and safety in working with tools
depend to a great extent upon the individual accuracy, skill and caution. For this reason, the
Seller is not able to guarantee the result of any procedure contained herein. Nor can they
assume responsibility for any damage to property or injury to persons occasioned from the
procedures. Persons engaging the procedures do so entirely at their own risk.
CAUTION
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
ATTENTION: RISQUE D'EXPLOSION SI LA BATTERIES EST REMPLACE'E PAR
UN TYPE INCORRECT. REJETEZ LES BATTERIES UTILISE'ES SELON LES
INSTRUCTIONS.
II

8555-M483-O1 Rev C x750 Owner’s 1
INTRODUCTION
Thank you for purchasing our 750 Weight Indicator. It has been manufactured with quality and
reliability and has been tested before leaving our factory to ensure accuracy and dependability
for years to come.
This manual is provided to guide you through installation, operation and maintenance of your
indicator. Please read it thoroughly before attempting to install or operate your indicator and
keep it available for future reference.
SPECIFICATIONS
Power Requirements . . . . . . . . Six “AA” Alkaline, Ni-Cad or NiMH batteries (not included)
OR an optional 100 to 240 VAC 50/60Hz 12 VDC 1A wall
plug-in UL/CSA listed AC power adapter (Cardinal part
number 6800-1045). Models are available with the AC
adapter included.
Operating Temperature . . . . . . 14 to 104 ºF (-10 to +40 ºC)
Display . . . . . . . . . . . . . . . . . . . Six-digit, seven segments, 0.7-inch-high LCD
Sensitivity . . . . . . . . . . . . . . . . . 0 to 2.4 mV/V
Signal Input Range . . . . . . . . . 0 to 12mV max.
Transducer Excitation . . . . . . . 5.0 VDC
Resolution . . . . . . . . . . . . . . . . 2,500 divisions
Capacities . . . . . . . . . . . . . . . . up to 10,000 divisions noncommercial
Division Value . . . . . . . . . . . . . 1, 2, or 5
Sample Rate . . . . . . . . . . . . . . 1 to 16 samples per second
Auto Zero Range . . . . . . . . . . . 0.5 or 1 through 9 divisions
Weighing Units . . . . . . . . . . . . . Pounds or Kilograms
Keyboard . . . . . . . . . . . . . . . . . Membrane type with 5 keys and 4 directional arrows
Enclosure Size . . . . . . . . . . . . . 6.125" W x 6.75" H x 1.75" D (16 cm x 17 cm x 4 cm)
Construction . . . . . . . . . . . . . . . Painted Steel
Standard Features:
xUnits Locking xSelectable Filtering
xAuto Shut-Off Feature xSerial I/O (Input/Output)
xSelectable Sleep-Mode xWi-Fi and Bluetooth, available in
Model 750C
Optional Features:
xOptional 12VDC AC Power Adapter

8555-M483-O1 Rev C x750 Owner’s
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SITE PREPARATION REQUIREMENTS
The 750 Weight Indicator is a precision weight indicating instrument. As with any precision
instrument, it requires an acceptable environment to operate at peak performance and
reliability. This section is provided to assist you in obtaining such an environment.
Environmental
The 750 Weight Indicator meets or exceeds all certification requirements within a temperature
range of 14 to 104 °F (-10 to +40 °C).
In order to keep cooling requirements to a minimum, the indicator should be placed out of
direct sunlight and to provide adequate air circulation, keep the area around the indicator clear.
Do not place the indicator directly in front of a heating or cooling vent. Such a location will
subject the indicator to sudden temperature changes, which may result in unstable weight
readings.
Make sure that the indicator has good, clean AC power and is properly grounded. In areas
subject to lightning strikes, additional protection to minimize lightning damage, such as surge
suppressors, should be installed.
Electrical Power
The 750 Weight Indicator has been designed to operate from a 100 to 240 VAC 50/60Hz 12
VDC 1A wall plug-in UL/CSA listed AC power adapter (Cardinal part number 6800-1045). Note
that a special order is not required for operation at 230 VAC.
The socket-outlet supplying power to the indicator should be on a separate circuit from the
distribution panel and dedicated to the exclusive use of the indicator.
The socket-outlet shall be installed near the equipment and shall be easily accessible.
The wiring should conform to national and local electrical codes and ordinances and should
be approved by the local inspector to assure compliance.
On installations requiring 230 VAC power, it is the responsibility of the customer to have
a qualified electrician install the proper power adapter plug that conforms to national
electrical codes and local codes and ordinances.

8555-M483-O1 Rev C x750 Owner’s 3
INSTALLATION
Unpacking
Carefully remove the indicator from the shipping carton and inspect it for any damage that may
have taken place during shipment. Keep the carton and packing material for return shipment if
it should become necessary. The purchaser is responsible for filing all claims for any damages
or loss incurred during transit.
Should your indicator come already installed on a scale, the following installation
instructions does not apply to you.
Mounting
To install the indicator on the bracket, place the screw heads on the back of the indicator into
the large end of the slotted holes in the bracket. Pull down to secure the indicator. The spring
plunger will lock the indicator to the bracket. See Figures No. 1, 2 and 3.
Figure No. 1 Figure No. 2
Figure No. 3
Load Cell
Connector
Spring
Plun
g
er
AC Power
Ada
p
ter
Spring
Plunger
Release
NOTE: The mounting
bracket on your scale
may be different than
the one shown in
Figures No. 2 and 3.
Refer to Appendix A for
other bracket types.
Serial I/O
Connector

8555-M483-O1 Rev C x750 Owner’s
4
5 4 3 2 1
9 8 7 6
1 2 3 4 5
6 7 8 9
INSTALLATION, CONT.
Interconnections
All input, output and power connections are made at the bottom rear panel of the indicator.
Refer to Figure No. 1 for the rear panel layout.
Load Cell Connection
The load cell cable connects to the indicator via a 9-pin "D" connector on the rear panel of the
indicator. Figure No. 4 shows the pin identification for the load cell connector. Make certain
that the pins are correctly identified before soldering a wire to them. Use the connector
retaining screws to hold the load cell cable connector securely to the rear panel.
Figure No. 4
NOTE: Pins 3, 4, 8, and 9 are not used.
Serial Interface and Bluetooth/Wi-Fi Specifications
The Serial interface and Bluetooth/Wi-Fi on the 750C Weight Indicator can be configured
during the setup and calibration procedure or during the setup review operation. Using either
method, it is possible to select the operation of the serial interface and Bluetooth/Wi-Fi.
The interfaces may be connected to a computer for transmission of weight and associated data
to a PC-based EMR (electronic medical record) software program. The data can be transmitted
on demand by pressing the PRINT key or on receipt of a command from the computer.
Serial I/O Port
The 750 RS-232 serial I/O port is a 9-pin "D" connector on the rear panel of the indicator.
Figure No. 5 shows the Serial I/0 connector along with the identity of the pins used. Make
certain that the pins are correctly identified before soldering a wire to them. Use the connector
retaining screws to hold the serial cable connector securely to the rear panel.
PIN NO. FUNCTION
2 DATA INPUT (RXD)
3 DATA OUTPUT (TXD)
5 SIGNAL GROUND (GND)
9 VCC or 5VDC
NOTE: Pins 1, 4, 6, 7, and 8 are not used.
Figure No. 5
NOTE: The Model 750C with Bluetooth and Wi-Fi does not have a RS-232
serial I/O port.
The 750 RS-232 serial interface can be configured during the setup and calibration procedure
or during the setup review operation. Using either method, it is possible to select the operation
of the serial interface as well as select the baud rate.
xThe baud rates supported are: 4800, 9600, 19.2K and 38.4K baud.
xThe data format is fixed at 8 bits, No parity, and 1 stop bit.
NOTE: The 750 indicator is shipped from the factory with the baud rate set to 9600 baud.
PIN NO. FUNCTION
1 + EXCITATION
2 - SIGNAL
5 SHIELD
6 - EXCITATION
7 + SIGNAL

8555-M483-O1 Rev C x750 Owner’s 5
INSTALLATION, CONT.
Optional AC Power Adapter
To power the 750 using the optional 12 VDC wall plug-in AC power adapter, connect the plug
from the adapter into the power jack on the back of the indicator, and then plug the power
adapter into the proper electrical outlet. Refer to Figure No. 1. On models requiring 230 VAC, it
is the customer’s responsibility to obtain the correct power adapter plug.
Batteries
The 750 can use 6 "AA" size Alkaline, Ni-Cad or NiMH batteries (not included). You must first
obtain and install the batteries before operations can begin. Batteries are contained in a
battery holder inside the indicator. Access is via a removable panel on the back of the
indicator. See Figure No. 6.
CAUTION! The 750 can be operated from Alkaline, Ni-Cad or NiMH batteries. All
six (6) batteries must be of the same type. They must all be Alkaline, all Ni-Cad or
all NiMH. DO NOT mix Alkaline and Ni-Cad or NiMH batteries.
WARNING! The AC power adapter is also used to recharge the batteries, when the
750 is operated from Ni-Cad or NiMH batteries. DO NOT connect the AC power
adapter to the 750 if using Alkaline batteries. Also, when using Alkaline batteries,
make sure the 0-3 setup option is disabled (set to 0). Refer to Setup and
Calibration or Setup Review.
Battery Status
The 750 will operate for up to 250 hours on new Alkaline batteries or for up to 100 hours on
fully charged Ni-Cad or NiMH batteries depending on the condition of the batteries (from new
to about 500 recharges). The battery bar graph on the display indicates the battery capacity in
4 steps:
4 segments - the full battery capacity is available,
3 segments - the battery is at 75% of capacity,
2 segments - the battery is at 50% of capacity,
1 segment: - the battery is at 25% capacity.
When the battery voltage drops too low for accurate weighing, the indicator will show !6;
and then shut off. You will be unable to turn the indicator back on until the Alkaline batteries
have been replaced or if using Ni-Cad or NiMH batteries, the AC power adapter is connected
to the indicator to power it and recharge the batteries.
Battery Charging
To recharge the Ni-Cad or NiMH batteries, the AC power adapter must be connected to a
power outlet and plugged into the indicator. It will take approximately 8 to 10 hours to fully
recharge the batteries. Charging the batteries for more than 10 hours will not damage them.
NOTE: The indicator may be operated while the batteries are charging.

8555-M483-O1 Rev C x750 Owner’s
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INSTALLATION, CONT.
Battery Installation/Replacement
To install or remove the batteries, the following steps should be followed:
1. Make sure the AC power adapter is
unplugged.
2. Remove the indicator from the scale
mounting bracket. (Referring to Figure
No. 3, pull the spring plunger down and
slide the indicator away from the
mounting bracket).
3. Turn the indicator over so that the display
is facing away from you.
4. Locate the rectangular panel on the back
of the indicator.
5. To install or replace the batteries, remove
the battery holder cover by pushing in on
the tab and lifting it up. Refer to Figure
No. 6.
6. If installing new batteries, referring to
Figure No.7 and the polarity markings
located in the battery holder, install 6 new
“AA” size batteries in the battery holder.
7. If replacing the batteries, remove all 6
batteries from the battery holder, and
then referring to Figure No.7 and the
polarity markings located in the battery
holder, install 6 new “AA” size batteries in
the battery holder.
8. After placing all 6 batteries in the holder,
replace the battery cover.
9. Turn the indicator over (display facing up)
and press the ON/OFF key.
10. If the display turns on, the batteries have
been installed correctly. If not, remove
the battery cover, and check for one or
more improperly positioned batteries.
11. Return the indicator to the scale
mounting bracket.
12. The indicator is now ready for operation.
Push in and
lift here
Figure No. 6
Figure No. 7
- +
+ -
+ -
+ -
- +
- +
Battery
Cover

8555-M483-O1 Rev C x750 Owner’s 7
WEIGHING UNITS SELECTION
When the 750 Weight Indicator is turned on for the first time, it will display a prompt to select
the weighing units to use for your operation, lb (pounds) or kg (kilograms). The weighing units
selection can ONLY be made at this time and cannot be changed afterward. Make sure you
select the correct weighing units before proceeding.
Key Legend
ON/OFF Key ENTER Key
ARROW Ke
y
s
1. Press the ON/OFF key to turn the 750 Weight Indicator on.
2. The display will show the model number, then the software version for a few seconds, and
will finally change to show '"-&>.
3. Press the ENTER key to view the current (factory) setting.
4. The display will change to show a flashingwith the lb (pounds) annunciator turned on next
to it.
5. If weighing in lb (pounds) is required for your operation, press the ENTER key to save it,
and then proceed to step 12.
6. If your operation requires weighing in kg (kilograms), press the a(UP arrow) key to select
kilograms.
7. The display will change to show a flashing with the kg (kilograms) annunciator turned on
next to it.
8. Press the ENTER key to save the kg (kilograms) weighing units setting, and then proceed
to step 12.
9. If your operation requires weighing in lb-oz (pounds and ounces), press the a(UP arrow)
key again to select pounds and ounces.
10.The display will change to show a flashing with the lb-oz (pounds and ounces)
annunciator turned on next to it.
11.Press the ENTER key to save the lb-oz (pounds and ounces) weighing units setting, and
then proceed to step 12.
12.The 750 Weight Indicator is now ready for operation.
IMPORTANT! Make sure you select the
correct weighing units. Once the weighing
units has been set, it cannot be changed.

8555-M483-O1 Rev C x750 Owner’s
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KEYPAD FUNCTIONS
DO NOT operate the keypad with pointed objects (pencils, pens, etc).
Damage to keypad resulting from this practice is NOT covered under warranty.
This is the ON/OFF key. With the indicator off, pressing this key will turn it on.
If the indicator is already on, pressing the key will turn the indicator off.
Basic Functions
This is the ZERO key. It is used to reset the display to zero up to the selected
limit of either 4% or 100% of the scale capacity. The zero limit is set during
setup and calibration of the indicator.
This is the PRINT key. It is used to signal completion of the data entry,
process the data entered, and to send the weight and associated data to the
RS232 serial port and the optional Wi-Fi and Bluetooth (BLE).
NOTE: The 750 will not respond to pressing the PRINT key unless the weight
display is stable. If displaying gross weight, only the gross weight is printed. If
displaying net weight, the gross, tare, and net weights are printed. If the BMI
feature is used, its data is printed along with the weight data.

8555-M483-O1 Rev C x750 Owner’s 9
KEYPAD FUNCTIONS, CONT.
This is the LOCK/RELEASE key. It is used to lock and release (unlock) the
display. If the HOLD feature was enabled during setup and calibration,
pressing this key (after obtaining a stable weight) will cause the indicator to
lock onto the weight. Pressing this key again will release (unlock) the display
and return it to zero.
If AUTO LOCK feature was enabled, weight display will lock after placing a
load on the scale and obtaining a stable weight. Pressing this key will release
(unlock) the display and return it to zero, or if another load is applied, lock onto
new weight after obtaining a stable weight. Note that the lock feature is for
non-commercial (NOT "Legal for Trade") applications.
Body Mass Index (BMI) Functions
This is the HEIGHT/ENTER key. It is used for several functions. First, during
setup and calibration, it is used as the ENTER key. Pressing it will display the
current setting of the parameter. Second, again as the ENTER key, it is used
to signal completion of the data entry and causes the indicator to process the
data entered. Third, during normal operation, it is used as the HEIGHT key to
input the height (feet and inches or centimeters) for the Body Mass Index
(BMI) calculation.
NOTE: Unless the weight display is stable, the indicator will not respond to
pressing the HEIGHT/ENTER key.
Arrow Keys
The arrow keys are used during setup and calibration to select
setup values, and for several purposes during operation.
In setup and calibration, they are used to increase or decrease
the displayed setup values.
When used with the BMI function, they are used to increase or
decrease the BMI height values.
Pressing the Up (a) or Down (b) Arrow keys will increase or
decrease the value of the selected digit. Pressing the Left (_) or
Right (`) Arrow key will move the cursor (blinking character) to
the next character position.
During normal operation, pressing the Up (a) or Down (b) Arrow keys will enter a weight
recall option that allows the last 10 weights recorded to be reviewed. Note that the weight is
recorded each time the weight is locked.

8555-M483-O1 Rev C x750 Owner’s
10
ANNUNCIATORS
The annunciators are turned on to indicate that the display is in the mode corresponding to the
annunciator label or that the status indicated by the label is active.
Figure No. 9
The low battery annunciator is located in the upper left corner of the display. It is used to
indicate the battery status. Refer to Power Connection section of this manual for more details.
[
[\
(STABLE)
This annunciator is turned on when the weight display is stable. When off, it means that the
change in successive weight samples is greater than the motion limits selected during setup.
ZERO
This annunciator is turned on to indicate that the weight displayed is within +/- 1/4 division of
the center of zero.
LOCK
This annunciator is turned on to show that the indicator is locked onto the displayed weight.
In operation, after obtaining a stable weight, pressing the LOCK/RELEASE key will cause
the indicator to lock onto the weight and turn on the annunciator. Pressing the key again (or
dropping below the Auto Lock reset value) will unlock the display and turn off the
annunciator. NOTE: The lock feature must be enabled during setup.
BMI (Body Mass Index)
This annunciator is turned on when displaying the calculated body fat.
kg
This annunciator is turned on to indicate that the displayed weight is in kilograms.
lb
This annunciator is turned on to indicate that the displayed weight is in pounds.
cm
This annunciator is turned on when the displayed height measurement is in centimeters.
FEET / INCHES
These annunciators are turned on when the displayed height measurement is in feet and
inches.

8555-M483-O1 Rev C x750 Owner’s 11
OPERATION
Basic Weighing Operation
To Weigh
1. Press the ON/OFF key to turn on the indicator.
2. If required, press the ZERO key to zero weight display.
3. Assist patient onto the scale.
4. When weight is stable (STABLE [
[\
annunciator will turn on), read the weight display.
5. If a printer is connected to scale, press the PRINT key to print a ticket.
6. Assist patient off the scale.
Zero Weight Display
1. In Gross Weight mode (GROSS annunciator on), press the ZERO key.
2. Weight display will return to zero. ZERO and STABLE
[\
annunciators will turn on
to show a stable, center-of-zero (Æ0Å) gross weight condition.
Zero Weight Display with Item on Scale
1. Place the item (wheelchair, walker, etc.) on the scale.
2. The display will show the weight of the item on the scale.
3. Press the ZERO key.
4. The weight display will return to zero. ZERO, STABLE
[\
and lb or kg annunciators
will turn on. The weight of the item has been "zeroed off".
5. Assist patient onto the scale.
6. When weight is stable (STABLE
[\
annunciator will turn on), read the weight display.
7. If a printer is connected to the scale, press the PRINT key to print a ticket.
8. Assist patient off the scale.
Body Mass Index (BMI) Operation
To Weigh and Calculate BMI
1. Press the ON/OFF key to turn on the indicator.
2. If required, press the ZERO key to zero weight display.
3. Assist patient onto the scale.
4. When weight is stable (STABLE
[\
annunciator will turn on), read the weight display.
5. Press the HEIGHT key.
6. If pounds was selected for the weighing units, the display will change to show
FEET, INCHES with the 6 blinking. (The blinking character is the position to be changed).
a. Press the aor bkeys until the desired height in inches is displayed.
b. Press the
_
or
`
key to move the blinking character to FEET.
c. Press the aor bkeys until the desired height in feet is displayed.
d. Proceed to Step 8.

8555-M483-O1 Rev C x750 Owner’s
12
OPERATION, CONT.
Body Mass Index (BMI) Operation, Cont.
To Weigh and Calculate BMI, Cont.
7. If kilograms was selected for the weighing units, the display will change to show
 cm. with the 0 of 170 blinking. (The blinking character is the position to be changed).
a. Press the aor bkeys until the desired number is displayed.
b. Press the _
_
or
`
key to move to the next character to change.
c. Repeat steps A and B until the desired height in centimeters is displayed.
d. Proceed to Step 8.
8. Press the HEIGHT key.
9. Read the BMI on the display.
10.If a printer is connected to the scale, press the PRINT key to print a ticket.
11.Assist patient off the scale.
12.Press the HEIGHT key to return to the normal weighing operation.
NOTE: The HEIGHT key can be used to toggle between the calculated BMI value and the
weight until the scale goes below 10% of capacity (40 lbs). At that point, a new height input is
required.
Weight Recall
During normal operation, pressing the aor bkeys will enter a weight recall option that allows
the last 10 weights recorded to be reviewed. Note that the weight is recorded each time the
weight is locked.
xUse the aor bkeys to scroll through the 10 records.
xThe ZERO key can be used to clear the recorded values.
xPress any other key to return the indicator to normal operation.
NOTE: While reviewing the recorded weights, the display will alternate between the
transaction number and the weight. In addition, the 10 recorded weights can only be viewed
and cannot be printed.
Serial ID Storage
The 750 has been equipped with Serial ID storage for 200 records. Each ID stores the ID
index, Weight, Height, BMI and Unit of measure. When the ENTER key is pressed, the
indicator will assign the current values to a new ID and store the ID in memory. Next, the
indicator will print the ticket in the mode selected during setup and calibration.
Once the first print is finished, the indicator will allow more tickets to be printed, however it will
not store the values again until the weight goes below 1/10 of the scale capacity. This prevents
ID overlap until the next person steps on the scale.
NOTE: Serial ID storage can only be printed, not viewed through the display.

8555-M483-O1 Rev C x750 Owner’s 13
SETUP AND CALIBRATION
Your 750 Weight Indicator has been thoroughly tested and calibrated before being shipped to
you. If you received the indicator with a scale, calibration is not necessary. If the indicator is
being connected to a scale for the first time or recalibration is necessary for other reasons, the
following describes the steps to perform setup and calibration on the indicator.
Calibration of the indicator is accomplished entirely by the keypad. To enter setup and
calibration, the calibration switch must be pushed in and held while turning on the indicator.
Begin Setup and Calibration:
1. With the power off, remove the two (2) screws from
the left end cap (as viewed from front of the
indicator) and remove the end cap.
2. Locate the calibration switch on the circuit board and
push it in. See Figure No. 10.
3. With the switch held in, press the ON/OFF key.
4. When the display shows *&'$, release the
calibration switch. The indicator is now ready for
setup and calibration.
During setup and calibration, it is necessary to enter values
using the indicator's keypad. When a prompt is displayed
on the indicator, press the ENTER key to view the current
setting. If the value displayed is acceptable, press the
ENTER key to save it, and proceed to the next prompt. To
change a setting, press the Up (a) or Down (b) Arrow
keys to scroll through and select a new value. After a new
value has been selected, press the ENTER key to save it
and proceed to the next prompt.
NOTE: Some setup prompts have values with 2 or more
digits. The blinking character (digit) is the position to be
changed, and can be advanced to the next position by
pressing the Left (_) or Right (`) Arrow key.
DO NOT operate the keypad with pointed objects (pencils, pens, etc).
Damage to keypad resulting from this practice is NOT covered under warranty.
'*>`(DOMESTIC or INTERNATIONAL)`
This is the prompt to select whether the indicator is used in the USA (domestic) or outside
the USA (international).
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys to select a new value, and then press
the ENTER key to save it.
Allowable values are: 0 or 1.
'*> (Domestic) '*> (International)
No Zero Limit +/- 4% Zero Limit
$ +4% to OC $ +9 grads to OC
Figure No. 10
Calibration
Switch

8555-M483-O1 Rev C x750 Owner’s
14
SETUP AND CALIBRATION, CONT.
-0;>`(INTERVAL SETTING)`
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys to select a new value, and then press
the ENTER key to save it.
Allowable values are: 1, 2, or 5.
'0*>`(MOTION (UNSTABLE) RANGE)`
The Motion (Unstable) Range is the number of divisions of change permitted before the
STABLE annunciator turns off.
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys and the _or `keys to select a new
value and then press the ENTER key to save it.
Allowable values are 0 through 99.
3$$>`(DECIMAL POINT POSITION)`
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys to select a new value, and then press
the ENTER key to save it.
Allowable values are: 0, 1, 2, or 3.
0 = XXXXXX 1= XXXXX.X 2 = XXXX.XX 3 = XXX.XXX
$>`(SCALE CAPACITY)
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys and the _or `keys to select a new
value, and then press the ENTER key to save it.
Allowable values are: 1 through 99,999.
!&> (DIGITAL FILTER LEVEL SELECTION)
Your indicator will arrive with factory filter settings of 1 = Minimal. Please check with Tech
Support before changing filter level, break range and sample rate.
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys to select a new value, and then press
the ENTER key to save it and proceed to the next prompt.
Allowable values are: 0, 1, 2, or 3.
0 = Minimal Filter 1 = Moderate Filter 2 = Heav
y
Filter 3 = Custom Filter
NOTE: If 3 = Custom Filter is selected, two additional prompts will be displayed.
> (FILTER LEVEL)
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys and the _or `keys to select a new
value, and then press the ENTER key to save it.
Allowable values are 1 (least amount of filtering) to 99 (greatest amount of filtering).
%> (BREAK RANGE)
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys and the _or `keys to select a new
value, and then press the ENTER key to save it.
Allowable values are 1 to 99, which correspond to the number of division changes to break
out of filtering.

8555-M483-O1 Rev C x750 Owner’s 15
SETUP AND CALIBRATION, CONT.
*%> (SAMPLE RATE)
Press the ENTER key to view the current setting. If the value displayed is acceptable, press
the ENTER key. Otherwise, press the aor bkeys and the _or `keys to select a new
value, and then press the ENTER key to save it.
Allowable values are 1 (the minimum number of samples) to 16 (the maximum number of
samples) in one sample per second intervals.
!>`(CALIBRATION)
With the display showing !>, press the ENTER key. The display will change to show the
current setting (0=NO). If the scale has been previously calibrated and you wish to skip
calibration and proceed to the #!> (Hold Mode) prompt, press the ENTER key and the
previous calibration will be retained.
To begin calibration, press the akey to select 1 (yes), and then press the ENTER key. After
pressing the ENTER key, the display will change to !#3>.
!63>`(LOAD CALIBRATION WEIGHT)
With the display showing !63> perform the following steps:
1. Make certain the scale platform is empty and free of debris.
2. Place the desired amount of calibrated test weights on the scale platform. A minimum of
50% of scale's capacity is required. However, 70% to 100% is recommended.
3. Press the ENTER key.
4. If the value displayed is acceptable, press the ENTER key. Otherwise, determine the
exact amount of test weight placed on the scale platform, and then use the aor bkeys
and the _or `keys to select the test weight amount.
5. Verify that the numbers selected are the same as the amount of the test weight, and
then press the ENTER key.
6. Starting at the left and preceding right, a series of dashes will appear on the display.
The dashes will stay on the display momentarily, then disappear, after which the display
will proceed to the next prompt.
'0!63>`(UNLOAD CALIBRATION WEIGHT)
After a moment, the display will change to '0!613.
1. Remove the test weights from the scale platform, and then press the ENTER key.
2. Starting at the left and preceding right, a series of dashes will appear on the display.
The dashes will stay on the display momentarily, then disappear, after which the
calibration factor will be saved and the display will proceed to the next prompt.
IMPORTANT: During the time the dashes are appearing on the display, make
sure that the loaded (or empty) scale is stable.

8555-M483-O1 Rev C x750 Owner’s
16
SETUP AND CALIBRATION, CONT.
*; (SET GRAVITY CONSTANT)
This indicator is equipped with an acceleration of gravity function which means that it can be
calibrated in one location and then adjusted to match the acceleration of gravity at the location
where it will used.
With the display showing :4;, press the ENTER key to view the current setting. If the
value displayed is acceptable, press the ENTER key. Otherwise, press the aor bkeys to
select a new value, and then press the ENTER key to save it.
Allowable values are: 0 or 1.
*;>` *;>`
Gravity Constant is NOT used Set Gravity Constant
NOTE: If you select 1 (Set Gravity Constant) the following additional prompts will be
displayed:
!> (CALIBRATED GRAVITY CONSTANT)
This is the acceleration of gravity value of the location where the scale was calibrated.
With the display showing !>, press the ENTER key to show the current setting. If the
value displayed is acceptable, press the ENTER key. Otherwise, press the aor bkeys and
the _or `keys to select a new value, and then press the ENTER key to save it.
Consult the factory Tech Support for the Acceleration of Gravity value for your location.
#$> (OPERATING GRAVITY CONSTANT)
This is the acceleration of gravity value for the location where the scale will be operated.
With the display showing 6$>, press the ENTER key to show the current setting. If the
value displayed is acceptable, press the ENTER key. Otherwise, press the aor bkeys and
the _or `keys to select a new value, and then press the ENTER key to save it.
Consult the factory Tech Support for the Acceleration of Gravity value for your location.
NOTE: Once the Gravity Constant has been set, both !> and 6$>
must be set to the same value to disable it.