NBN 9320 User manual

9320
Load Cell Hand Held
Digital Indicator
TEDS Plug & Play Ready
IEEE 1451.4 Compliant
User Manual
13-69 Rev 2.4
Interface, Inc. •7401 E. Butherus Dr. •Scottsdale, AZ 85260 •800-947-5598
www.interfaceforce.com
9320TEDSman2R2_4.doc
nbn Elektronik Handelsgesellschaft m.b.H.
Riesstraße 146, 8010 Graz | Tel. [phone] | Fax [phone]www.nbn.at
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Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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Contents
What is TEDS?................................................................................................ 3
Basic concept ................................................................................................ 3
How it works ................................................................................................. 3
Advantages .................................................................................................... 4
Introduction.................................................................................................. 4
User Operation ............................................................................................... 4
Electrical Connection Information ........................................................................ 5
Sensor Connections .......................................................................................... 5
RS232 Port Connections ..................................................................................... 5
Internal Connections ........................................................................................ 5
Menu Structure ............................................................................................... 7
Configuration Menu .......................................................................................... 8
Calibration Menu ............................................................................................. 10
Operation Features .......................................................................................... 11
Normal Display Operation .................................................................................. 11
Switching the 9320 On/Off ................................................................................. 11
RANGE Button................................................................................................. 11
HOLD Button .................................................................................................. 13
GROSS/NET Button........................................................................................... 13
SHUNT CAL Button ........................................................................................... 13
PEAK Button................................................................................................... 13
VALLEY Button................................................................................................ 13
Configuration Menu Parameters ........................................................................... 14
Calibration Menu Parameters .............................................................................. 16
Calibration Procedures ...................................................................................... 17
Internal Calibration.......................................................................................... 18
Specifications................................................................................................. 20
Mechanical Dimensions...................................................................................... 20
Warranty....................................................................................................... 21

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What is TEDS?
"Plug and play sensor hardware and software make configuring a smart TEDS sensor as easy as plugging a
mouse into a PC. The technology has greatly improved efficiency and productivity by completely eliminating
manual sensor configuration."
Basic concept
TEDS is at the heart of the new universally accepted IEEE 1451.4 standard for delivering Plug and Play capabilities
to analogue measurement and test instruments. In essence, information in a Transducer Electronic Data Sheet
provides interfacing devices with the critical sensor calibration information in order to perform accurate and
precise measurements every time.
TEDS works in a similar way in which USB computer peripherals immediately work as they are connected. TEDS
enabled equipment may be swapped and changed without recalibration, saving time and money.
TEDS holds information such as a sensor manufacturer, model and serial numbers, and more importantly all the
calibration settings determined by the manufacturer.
How it works
Plug and play is a data acquisition technology that can simplify the configuration of automated measuring systems
by making a sensor’s unique identification data available electronically. As implemented according to IEEE 1451.4,
data in the form of a transducer electronic data sheet (TEDS) is burned on an electrically erasable programmable
read-only memory (EEPROM) chip located on the sensor, so when a properly adapted signal conditioner interrogates
the sensor, it can interpret the self identification data. This technology provides a great benefit by eliminating the
need for paper calibration sheets. In addition, it can simplify labeling and cabling problems, as well as inventory
control issues; by letting you burn location data onto the chip when installing a sensor. And because all sensors
produced according to the standard will carry the same basic identically formatted self-identification information,
you will be able to mix and match sensors and applicable signal conditioners across manufacturers.
Smart TEDS Sensor
Analog Signal
Digital TEDS
•SENSORMANUFACTURER
•MODELNUMBER
• SERIAL NUMBER
•MEASUREMENTRANGE
• CALIBRATION INFORMATION
• USER INFORMATION
TRANSDUCER
TRANSDUCER
ELECTRONIC
DATA SHEET (TEDS)
MIXED-MODE
INTERFACE
(ANALOGUE
AND DIGITAL)

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Advantages
Plug and play sensors are revolutionizing measurement and automation. With Transducer Electronic Data Sheets
(TEDS), your data acquisition system can detect and automatically configure sensors. This technology provides:
• Reduced configuration time by eliminating manual data entry
• Better sensor tracking by storing data sheets electronically
• Improved accuracy by providing detailed calibration information
• Simplified asset management by eliminating paper data sheets
• Reliable sensor location by identifying individual sensors electronically
Introduction
The 9320 Portable Strain Display Load Cell/Force transducer readout is a microprocessor based portable instrument
designed to interface with any full bridge sensor with an output sensitivity of up to 50mV/V. Bridge resistances
from 85Ωupwards can be used with the 9320.
Configuration and calibration of the 9320 is achieved using the front panel push buttons to navigate through a very
simple menu structure.
User functions available on the 9320 include:
Range Selection
Display Hold/Freeze
Gross/Net indication selection
Peak Hold selection
Valley Hold selection
Shunt Cal check
The 9320 is powered by two internal non-rechargeable AA alkaline batteries.
There is an option to have rechargeable alkaline batteries, which can be charged without the need for removing
them from the 9320.
User Operation
Operation Annunciators
Unit Labels
Push Buttons used
for normal
operation and for
configuration
Full 7 digit LCD
display

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Electrical Connection Information
Sensor Connections
The standard sensor connection is a 5 pin 723 series Binder connector. The sensor connector is also used as a
charging socket, when the re-chargeable alkaline battery option has been ordered, the wiring for this is detailed
below:
PIN 1 +ve Excitation
PIN 2 -ve Excitation, -ve Charge Input & TEDS Common
PIN 3 +ve Signal
PIN 4 -ve Signal
PIN 5 +ve Charge Input or TEDS
RS232 Port Connections
If the 9320 has been ordered with the optional RS232 output, then this will be available via a 7 pin 723 series Binder
connector. The wiring for this is as detailed below:
PIN 1 Tx
PIN 2 Rx
PIN 3 Gnd
Internal Connections
It may be necessary from time to time to know what the internal connections are. For example, if you disturb some
of the connections while trying to insert the range legends, or if you need to change the internal shunt calibration
resistor. These are shown below for reference only:
Shunt Calibration
Resistor
Sensor Connections
Sensor Connections

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There are six push buttons on the front panel of the 9320, which are available for use in normal operation. Each of
these is described below:
Front Panel Button Function of Button in Normal Operation Mode
To switch the 9320 ON or OFF press and hold the button
The RANGE button allows the user to toggle between two independent
scales. The range that has been selected is highlighted by an annunciator.
The HOLD button allows you to hold/freeze the current display value when
the button is pressed. Pressing the HOLD button again releases the display.
The HOLD annunciator is illuminated when in the HOLD mode, and the
display will flash, to alarm further that the user is not viewing instantaneous
display values.
The GROSS/NET button, when pressed, allows the user to toggle between
displaying the Gross or Net display values. This can be useful in many
applications where it is necessary to display the change in display value from
a certain part of the measurement range. When in NET mode the NET
annunciator is lit. When in GROSS mode, the NET annunciator is not lit.
The SHUNT CAL button allows the user to press this at any point in time.
The standard unit shunts a 100kresistor across the negative excitation and
negative signal connections. If this is performed at the end of the
calibration procedure, then a figure can be noted, so the user can check
calibration accuracy or connection integrity. The button has to be held down
to operate. When held down the SHUNT CAL annunciator is lit and the
display will flash, to alarm further that the user is not viewing instantaneous
display values.
When the PEAK button is pressed the display will show the last Peak
reading. To reset the Peak readings press the PEAK and VALLEY buttons
simultaneously. When in PEAK mode the PEAK annunciator will be lit and
the display will flash, to alarm further that the user is not viewing
instantaneous display values. To turn off Peak mode press the PEAK button.
When the VALLEY button is pressed the display will show the last Valley
reading. To reset the Valley readings press the VALLEY and PEAK buttons
simultaneously. When in VALLEY mode the VALLEY annunciator will be lit
and the display will flash, to alarm further that the user is not viewing
instantaneous display values. To turn off the Valley mode press the VALLEY
button.

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Menu Structure
The 9320 has two menus, details of which are outlined below:
A CONFIGURATION MENU, which enables the user to tailor the operation to meet a specific application requirement.
The values selected in the CONFIGURATION MENU are completely independent for each range.
SEt ZErO 0000000
SEt rAtE
SEt OUEr
SEt OPEr
AutO OFF
rS232
25? 10? 3? 1? 0.5?
0000000
PSAVE?
00
EnAbLEd?
RETURN TO
NORMAL DISPLAY
MODE
A Calibration Menu, which is used to calibrate each of the two ranges with independent scales, as well as setting
the display resolution for each range.

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SEnS 5.0
SEt rES
LiVE?
0000.000
uSE SC?
APPLY LO
dISP LO
0000000
APPLY HI
dISP HI 0000000
donE
APPLY LO
dISP LO
0000000
dISP HI 0000000
donE
CALibrAt
tAbLE? InPut LO 0000000
dISP LO
0000000
InPut HI 0000000 dISP HI 0000000
donE
CAL VAL? SEt 9Ain 0000000
SEt OFFS donE
0000000
RETURN TO
NORMAL DISPLAY
MODE
tedS EnAbLEd?
*
* Note:Only when TEDS is disabled
Configuration Menu
To enter the CONFIGURATION MENU, press and hold
and
buttons for 3 seconds
Parameter Set-up Information
SEt ZEro
Press To skip to next menu item
Press To set a new system zero
This allows the user to introduce a fixed offset to the display value. The GROSS and NET
values are then displayed with this offset taken into account.
Values between -9999999 and +9999999 can be entered, using the and arrows to
select a digit and the and arrows to increment or decrement the digits. Press
to accept the value and move onto the next parameter.
Set Zero may also be set by pressing and at the same time.
SEt rAtE
Press To skip to next menu item
Press To change the update rate
This allows the user to set the display update rate, the options available is the update rate
of the display in Hz. Please note that the 25Hz update is only available in PEAK or VALLEY
mode.
When you choose to change the update rate you will be prompted whether you want to
select 25Hz, if you do not press you will then be prompted to select any of the other
values, which in order, are 10Hz, 3Hz, 1Hz, 0.5Hz. to set the update rate for the value you
want press
SEt
OUEr
Press To skip to next menu item
Press To set overload alarm

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This allows the setting of a visual overload. The value entered is the display value at which
the 9320 displays OUErLOAd.
Values between -9999999 and +9999999 can be entered, using the and arrows to
select a digit and the and arrows to increment or decrement the digits. Press
to accept the value and move onto the next parameter.
Parameter Set-up Information
SEt
OPEr
Press To skip to next menu item
Press To select operation mode
This allows the enabling or disabling of the power save mode, which updates at 1 update per
second and pulses the sensor excitation. This results in a lower accuracy (1 part in 20,000).
To enable press .
To disable press
AUtO
OFF
Press To skip to next menu item
Press To set auto power off
This enables the setting of an auto power off value. The value entered is in minutes. If no
front panel buttons are pressed for the time set here, then the indicator will automatically
power off, to conserve battery life.
Values between 05 and 99 can be entered (00 leaves the 9320 permanently powered), using
the and arrows to select a digit and the and arrows to increment or
decrement the digits. Press to accept the value and move onto the next parameter.
rS232
Press To skip this parameter and exit menu
Press To enable the RS232 output
This feature enables you to enable or disable the RS232 output. Further details of the RS232
format are provided further into this manual. The RS232 output is an option that has to be
ordered with the 9320. To conserve battery life, it is suggested that the RS232 output is
disabled, when it is not required.
To enable press
To disable press

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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Calibration Menu
To enter the Calibration Menu, press and hold
and
buttons for 5 seconds
Parameter Set-up Information
SEnS 5.0
Press To skip to next menu item
Press To change sensor input sensitivity
This allows the calibration engineer to change the sensitivity range of the 9320, when
connecting to sensors with a sensitivity of greater than 5mV/V. The 9320 is factory set for
5mV/V. To ensure the unit is set to 5mV/V press
To select 50mV/V you need to power down the unit and access the internal circuit board.
Move link LK1 and place it onto JP1. Power on the 9320 and return to this point of the
calibration menu. You will notice that the menu parameter has changed to SEnS 50.0, press
to change the sensitivity to 50mV/V and move on to the next parameter.
SEt rES
Press to skip to next menu item
Press to the set the display resolution
This parameter sets the decimal point position for the display and the resolution, i.e. a value
of 000.005 would display the reading to 3 decimal places and the readings will change in
steps of 0.005.
The decimal point position is moved one place to the right each time you press the and
together.
Any value can be entered for the resolution, using the and arrows to select a digit
and the and arrows to increment or decrement the digits. Press to accept the
value and move onto the next parameter.
To save the settings and move on to the next parameter press
CALibrAt
THIS MENU IS DISABLED WHEN TEDS IS ENABLED
Press to skip to next menu item.
Press to the enter the calibration routine
If you have chosen to enter the calibration routine you will be prompted whether you want
to select LiVE, if you do not press ,otherwise press . You will then be prompted to
select either of the other calibration methods, which in order, are tAbLE and CAL VAL to
select any of the calibration methods press . Otherwise press
For more detailed calibration information, please refer to the calibration section of the
manual.

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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tedS
ENABLING TEDS DISABLES CALIBRATE MENU
Press to skip this parameter and exit menu
Press to enable or disable TEDS.
If you have chosen to enter the TEDS calibration, EnAbLEd? appears.
If you have chosen to enter the TEDS you will be prompted whether you want to select
EnAbLEd? if you do not press ,otherwise press . If you have selected enabled, two
flashing indicators will appear.
For more detailed TEDS calibration information, please refer to the TEDS section of the
manual.
Operation Features
Normal Display Operation
The 9320 has a full 7 digit display, which can be scaled using the calibration menu to suit the application it is to be
used in. The display can display the instantaneous, peak or valley values. It is also possible to hold the display value
(this only operates when not in peak or valley mode).
The display update rate, decimal point position and resolution can be set to suit.
The 9320 has two independent ranges. All values set in one range are totally independent from the other.
Switching the 9320 On/Off
The 9320 is switched ON or OFF by pressing and holding down the button for 3 seconds.
It is also possible to set an Auto-off value in the configuration menu, so that the 9320 automatically switches itself
off after a preset time, if there is no keyboard activity.
RANGE Button
The range feature allows for the setting of two totally independent setup ranges to be selected, if required. To
switch between ranges simply press the range button. If TEDS has been enabled then only 1 range is permissible.
When you enter either the calibration menu or configuration menu, the parameters you will be setting are those for
the range you have selected. An annunciator is lit to identify which range has been selected.
The 9320 is supplied with engineering unit legends; these can be slid into a window, located on the inside of the
front panel. These labels then help to further identify the units being displayed for each range. Please refer to the
photo below:
Legend labels are
inserted both sides

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HOLD Button
The hold button allows the user to freeze the display when it is pressed. When pressed again the display returns to
it’s normal operating mode. When in hold mode the display will flash and the hold annunciator will be lit, to ensure
that this feature is not accidentally turned on without the user noticing.
The hold feature cannot be used when the 9320 is in either peak or valley hold mode.
GROSS/NET Button
The gross/net button, when pressed, toggles between the gross and net display values. This enables the user to
zero the display (by putting the 9320 into net mode) and displaying the change in display value from that point.
This is useful for certain weighing applications where a tare weight exists, which can be removed by putting the
9320 into net mode.
SHUNT CAL Button
The shunt calibration button, when pressed, puts an internal 100kresistor across the –ve excitation and –ve signal
of the sensor, generating a simulated output from the sensor, therefore giving a simulated display value. This can
be pressed immediately after the sensor has been calibrated with the 9320 and noted down for later reference. The
value noted can be used to get an idea of the calibration accuracy at a later date, or for checking the integrity of
the sensor and sensor cabling.
The shunt calibration resistor can be changed to suit specific requirements. It is suggested that a 15ppm ±0.1%
tolerance resistor is used.
PEAK Button
When pressed this button puts the 9320 into peak mode. This will display the highest display reading and hold it on
the display until it is reset or a higher value is reached. To reset the peak display, press the peak and valley buttons
simultaneously. In peak mode it is possible to capture peaks at a rate of up to 25Hz. To turn off the peak mode,
press the peak button.
VALLEY Button
When pressed this button puts the 9320 into valley mode. This will display the lowest display reading and hold it on
the display until it is reset or a lower value is reached. To reset the valley display, press the peak and valley
buttons simultaneously. In valley mode it is possible to capture valleys at a rate of up to 25Hz. To turn off the
valley mode, press the valley button.

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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Configuration Menu Parameters
SEt ZEro Parameter
The SEt ZEro parameter is meant to be accessible to the user. It allows the removal of fixed display offset values
from the display, so that the GROSS and NET features can operate from a zero point. This may also be considered as
a manual tare facility. To zero the display, simply enter the value that you wish to subtract from the display in the
SEt Zero parameter. i.e. if the display reads 000.103 and you wish it to read 000.000, then enter 000.103 in the SEt
ZEro parameter.
Set Zero may also be achieve by pressing Gross/Net and Shunt Cal button simultaneously.
Different values can be set for each RANGE.
SEt rAtE Parameter
The SEt rAtE value sets the display update rate. The options available are 25Hz, 10Hz, 3Hz, 1Hz and 0.5Hz.
Different updates rates can be set for each RANGE.
The 25Hz rate only updates at this rate when in the PEAK or VALLEY mode. When in normal display mode it has
been limited to a 3Hz update, as the digit fluctuations are impossible to view with the human eye.
The 10Hz, 3Hz, 1Hz and 0.5Hz rates update the display every 100mS, 300mS, 1000mS and 2000mS respectively. The
9320 when it leaves the factory is set at 3Hz.
SEt OVEr Parameter
The SEt OVEr parameter allows the user to set a visual alarm. The value that is entered is the display value that
you want the alarm to activate at. When the alarm is activated the word OVErLOad appears on the screen. To
remove the alarm, the display value must be reduced to a value that is lower than that set in the SEt OVEr
parameter. This can be very useful as a safety feature, or simply as a quick indication of when a preset level has
been reached.
This value entered can be anywhere over the entire display range, so there are no limitations. Different values and
settings are available for each RANGE.
SEt OPEr Parameter
The 9320 has a special power saving mode, which can be enabled or disabled within this parameter, pressing
when asked whether you wish to select P SAvE? will put the 9320 into power save mode for the RANGE selected.
Pressing will de-activate the power save facility.
When the power save facility is activated, battery life is conserved by pulsing on the excitation voltage to the
sensor. As a result the accuracy is reduced, as is the update rate. When in this mode, the quickest update rate is
3Hz and the accuracy of the display is reduced to 1 digit in 10,000. It is important to note these limitations when
deciding whether to use the power save facility. However, it is also possible to set one RANGE with power save
activated and the other without.
The benefit is that the battery life, based on a 350sensor bridge being connected, increases from 45 hours to 450
hours.
It is also important to remember that when the 9320 is re-calibrated with a sensor, the power save facility will be
automatically turned off. The power save facility will therefore need to be re-activated after calibration has been
completed.

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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AUtO OFF Parameter
The AUtO OFF parameter is another power saving feature. It allows for the setting of a time period in minutes,
between 05 and 99 (00 de-activates AUtO OFF). i.e. if this was set to 25, then if the 9320 detects no keyboard
activity for a continuous 25 minute period, then the 9320 will power down, to conserve power. If keyboard activity
is detected at any time during the 25 minute period, then the time period is restarted.
This can be a useful feature in a site environment, should the 9320 be left unintentionally powered on.
rS232 Parameter
This parameter allows the user to enable the RS232 output from the 9320, by pressing when prompted by
EnAbLEd? On the display, pressing will disable the RS232.
The output format is ASCII. The display value is passed to the RS232 port each time the display updates, with a
carriage return at the end of each data string. The string information is as follows:
Baud Rate = 9600 baud
Stop bits = 1
Parity = None
Data bits = 8

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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Calibration Menu Parameters
SEnS 5.0 Parameter
The 9320 is factory set to enable calibration with sensors generating an input signal of 5mV/V or less. In the
majority of cases it will not be necessary to read higher signal levels. If however, a higher sensitivity sensor is used
with the 9320, it will be necessary to gain access to the internal PCB (you must turn the 9320 off) to move link LK1
to JP1 (see picture below) to allow the 9320 to accept sensitivities of up to 50mV/V. TEDS should only be used with
5mV/V as 50mV/V is not factory calibrated.
Once this link has been moved, you will need to go back into the CALIBRATION MENU. When re entering the menu,
you will notice that the parameter SEnS 5.0 has changed to SEnS 50.0 to change the sensitivity to 50mV/V press
, the 9320 will now check the position of the link and change the sensitivity. It will now be necessary to re-
calibrate any sensors that you may previously have calibrated to this instrument.
SEt rES Parameter
This parameter enables the setting of two features on the 9320. It allows you to set the decimal point position of
the display, by pressing the and together, to move the point position (each press moves the decimal point
position, one place to the right).
It also allows for the setting of the display resolution or the number of display counts the display changes with an
input change. To change the resolution use the and arrows to select a digit you want to change and the
and arrows to increment or decrement the digits. Press to accept the value.
CALibrAt Parameter (disabled when TEDS is enabled)
This parameter is used to calibrate and scale the 9320 with a sensor. There are two basic methods of calibration
available. These are LiVE and tAbLE. There is also a third parameter, which can be used for maintenance and
recording purposes. This parameter is CAL VAL. The CAL VAL value can be viewed after a calibration has been
completed and will show the offset and gain figures from any stored calibration. If these figures are noted, they can
be used to re-enter at a later date, if calibration data is lost for any reason, or if the calibration data from a sensor
needs to be transferred to another 9320.
tedS Parameter
This parameter automatically calibrates the 9320 with the data from the TEDS chip. The two annunciators appear
when active connection with a TEDS peripheral has been made. When there is a loss of connection these
annunciators flash. When changing a sensor the 9320 should be power cycled as this is when the TEDS data is read.
Calibration Procedures are not available when TEDS is enabled.
Sensitivity link should be in
this position for use with
sensors, with sensitivities
<+/- 5mV/V
Sensitivity link should be
in this position for use
with sensors, with
sensitivities >+/-5mV/V

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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Calibration Procedures
The best method of calibration, if it is possible to do so, is the LiVE calibration, as this reads in the sensor signal at
two calibration points and scales the 9320 automatically. If this is not possible, then the sensitivity figure (in mV/V)
from the sensor calibration certificate can be used to scale the 9320, by using the tAbLE calibration. This may be
the only option available if you are unable to apply a known stimulus to the sensor, which quite often is the case.
LiVE Calibration Procedure
When CALibrAt is displayed press
LiVE ? will now be displayed, press
You will be prompted uSE SC ?, this can be selected if you wish to use the shunt calibration figure from a sensor
calibration certificate (care should be taken that the shunt calibration resistor used originally with the sensor is the
same as is fitted in the 9320). If you wish to use this press otherwise press
You will then be prompted APPLY LO. At this point ensure that the low calibration stimulus is applied to the sensor
and allow to settle of approx. 3 seconds, then press
You then be prompted with dISP LO. Press to enter the display value required with the low stimulus applied to
the sensor. The value can be entered by using the and button to select a digit and the and
buttons to change the digit. When the value has been set press
You will then be prompted with APPLY HI (unless you chose to uSE SC ?, in which case jump to the next stage) At
this point ensure that the high calibration stimulus is applied to the sensor and allow to settle of approx. 3 seconds,
then press
You then be prompted with dISP HI. Press to enter the display value required with the high stimulus applied to
the sensor. The value can be entered by using the and button to select a digit and the and
buttons to change the digit. When the value has been set press
You should now see donE displayed. This means the calibration was successful, press to the 9320 to normal
operation mode, with the new calibration data stored. If you see FaiLEd, then you will need to repeat the
calibration, checking that you have completed the procedure in the correct order, and that the sensor is connected
correctly.
tAbLE Calibration Procedure
When CALibrAt is displayed press
LiVE ? will now be displayed, press
tAbLE ? will now be displayed, press
You will be prompted with InPut LO, press
Now enter the zero offset sensitivity of the sensor by using the and button to select a digit and the
and buttons to change the digit. When the value has been set press .If you do not know this, simply enter
all zeros.
You will be prompted with dISP LO. Press to enter the display value required for the low input figure entered.
The value can be entered by using the and button to select a digit and the and buttons to change
the digit. When the value has been set press
You will be prompted with InPut HI, press
Now enter the sensitivity figure supplied for the sensor by using the and button to select a digit and the
and buttons to change the digit. When the value has been set press .
You then be prompted with dISP HI. Press to enter the display value required for the high input figure entered.
The value can be entered by using the and button to select a digit and the and buttons to change
the digit. When the value has been set press
You should now see donE displayed. This means the calibration was successful, press to the 9320 to normal
operation mode, with the new calibration data stored. If you see FaiLEd, then you will need to repeat the
calibration, checking that you have completed the procedure in the correct order, and that the sensor is connected
correctly.

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
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Internal Calibration Menu
Internal calibration of the 9320 is important when the
indicator is used in the TEDS mode or when it is scaled by the
tAbLE method. In either of these scenarios, the indicator
either reads the transducer EEPROM to get the transducer
sensitivity in mV/V or obtains it from manual key entry. The
9320 must therefore have an internal mV/V reference. This
section describes a procedure for periodic calibration of the
internal reference.
If the 9320 is not used in the TEDS mode and is scaled only by
the LiVE method, not the tAbLE method, internal calibration
is unnecessary.
To enter the Internal Calibration Menu,
press and hold
and for 10 seconds
Parameter Set-up Information
5.0 gAIn
Press To skip to next menu item
Press To change the 5mV/V gain.
Here the factory gain calibration can be changed to a measured value.
Once the derived value has been entered Press to confirm.
5.0 OFFS
Press to skip to next menu item
Press to change the 5mV/V offset.
Here the factory offset value can be changed to a measured value.
Once the derived value has been entered Press to confirm.
50 gAIn
THIS CAN ONLY BE SET WHEN USING 50mV/V RANGE
Press To skip to next menu item
Press To change the 50mV/V gain.
Here the factory gain calibration can be changed to a measured value.
Once the derived value has been entered Press to confirm.
50 OFFS
THIS CAN ONLY BE SET WHEN USING 50mV/V RANGE
Press to skip to next menu item
Press to change the 5mV/V offset.
Here the factory offset value can be changed to a measured value.
Once the derived value has been entered Press to confirm.
5.0 gAIn
5.0 OFFS
50.0 gAIn
50.0 OFFS
CuSt
1.00000
1.00000
1.00000
0.00000
RETURN TO
NORMAL DISPLAY
MODE

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
18
Internal Calibration Procedure
1. Read and note the existing settings for gain and offset using the Internal Calibration Menu. If desired, the
settings for gain and offset may be reset to 1 and 0 respectively for convenience.
2. With the 9320 in normal operating mode, connect a mV/V calibration source to the sensor connector. A
precision simulator such as the Interface CX series is recommended. For the 5 mV/V range, a source of 3 or
4 mV/V is ideal. If a simulator is not available, another mV source may be used along with a precision DVM
to measure both the mV signal and excitation voltage in which case the input in units of mV/V is calculated
as the ratio. However, the simulator provides the most reliable and trouble-free method.
3. Take 9320 0 mV/V Reading and the 9320 4 mV/V Reading (using the preferred 4 mV/V as the example).
Find the net reading by subtracting the former from the later.
4. Calculate a new gain value per the formula
5. Set the New Gain value into the 9320 using the Internal Calibration Menu.
6. If desired, the offset may be adjusted. The offset value is not critical to the TEDS or LiVE or tAbLE
methods of calibration. To adjust the offset parameter for a true zero reading at zero input, find the New
Offset value per the formula
7. Set the New Offset value into the 9320 using the Internal Calibration Menu.
Internal Calibration, Gain Example 1
Existing Gain: 1.007920
Simulator: CX-0404, 4 mV/V setting = 3.99992
9320 0 mV/V Reading: 0.0003
9320 4 mV/V Reading: 3.9996
New Gain = 1.007920 (3.99992) / (3.9996-0.0003) = 1.008076
Internal Calibration, Gain Example 2
Existing Gain: 1.008220
mV source DVM reading = 40.008 mV
Excitation DVM reading = 10.055 V
Calculated input = 40.008 / 10.055 = 3.9789 mV/V
9320 0 mV/V Reading: 0.0003
9320 4 mV/V Reading: 3.9861
New Gain = 1.0082200 (3.9789) / (3.9861-0.0003) = 1.006475
Input mV/V
New Gain = Existing Gain
(9320 4 mV/V Reading – 9320 0 mV/V
New Offset = Existing Offset + 9320 0 mV/V Reading

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
19
Specifications
Performance Input Type: Strain Gage Full Bridge Sensors
Input Range:
Up ±5mV/V (±50mV/V can be supplied, with factory set
option)
Nonlinearity: ±0.005% FS
Thermal Drift: <25 ppm/°C
Excitation Voltage: 5Vdc (±4%), 59mA maximum current
Minimum Bridge
Resistance: 85(4 each 350sensors in parallel)
Internal Battery: 2 each AA size alkaline, access via sealed rear compartment
Battery Life:
45 hours (Typical 450 hours in low power mode), with 350
sensor
Update Rate: 0.5 Hz to 25 Hz (can be set in configuration menu)
Indication Display Type: 7½ digit LCD display, 8.8mm high digits
Display Resolution:
1 part in 250,000 at 1Hz update rate
1 part in 65,000 at 10Hz update rate
Annunciators:
Low Battery warning; peak; valley; hold; net; shunt cal;
range
Control Variables Front Panel User Keys:
Tactile Keys with recessed rims for:
ON/OFF Switches 9320 power on/off
RANGE Selects between two ranges
HOLD Hold the current display value, press again to
release
GROSS/NET Zero’s display (±100% range)
SHUNT CAL Generates simulated input for indicator
testing
PEAK Enables peak hold
VALLEY Enables valley hold
Settable Parameters:
Tare/Zero value; display resolution/decimal point position;
display update rate; low power mode; auto power off;
Mechanical Electrical Connection: 5 pin Binder socket (mating plug supplied)
Physical Size: See drawing below (mm)
Weight: 260 grams
Legends: Insert legends for engineering unit identification (supplied)
Environmental Operating Temperature: -10°C to +50°C
Environmental Rating: IP65 (when mating plug fitted)
Enclosure Type: ABS, dark grey (Leather Carry Case Optional)
Safety/Low Voltage
Directive
73/23/EEC amended by 93/68/EEC To IEC 1010-1:1990, EN
61010 – 1 – 1993 89/336/EEC
EMC Directive EN 50 081 – 1 : 1992 (Light Industrial)
Emissions
EN 50 081 – 2 : 1992 (Heavy Industrial)
pr EN 50 093 : 1991
EMC Emissions
EN 50 082 – 1 :1992 (Light Industrial)
EN 50 082 – 2 :1992 (Heavy Industrial)
Mechanical Dimensions
Lbs
kN
kgf
90
152
34

Interface 9320 TEDS Ready Indicator Manual Issue 2.4
20
Warranty
The 9320 is warranted against defective material and workmanship for a period of (1) one year from the date of
dispatch.
If the Interface, Inc. product you purchase appears to have a defect in material or workmanship or fails during
normal use within the period, please contact your Distributor, who will assist you in resolving the problem. If it is
necessary to return the product request an RMA # and include a note stating name, company, address, phone
number and a detailed description of the problem. Also, please indicate if it is a warranty repair.
The sender is responsible for shipping charges, freight insurance and proper packaging to prevent breakage in
transit.
The warranty does not apply to defects resulting from action of the buyer such as mishandling, improper
interfacing, operation outside of design limits, improper repair or unauthorised modification.
No other warranties are expressed or implied. Interface, Inc. specifically disclaims any implied warranties of
merchantability or fitness for a specific purpose. The remedies outlined above are the buyer’s only remedies.
Interface, Inc. will not be liable for direct, indirect, special, incidental or consequential damages whether based on
the contract, tort or other legal theory.
In the interests of continued product development, Interface, Inc. reserves the right to alter product specifications
without prior notice.
Doc No. 517-173 Issue 2.2 Dated 07.09.06
nbn Elektronik Handelsgesellschaft m.b.H.
Riesstraße 146, 8010 Graz | Tel. [phone] | Fax [phone]www.nbn.at
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