LCM SYSTEMS TR150 Manuel utilisateur
LCM SYSTEMS
Solutions in Load Cell TechnologySolutions in Load Cell Technology
TR150 Portable Battery
Powered Indicator
Instruction Manual
Software version V2.XX
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CONTENTS
What is TEDS?
Basic concept
How it works
Advantages
Introduction
User operation
Electrical connection information
Sensor connections
RS232 port connections
Internal connections
Menu structure
Configuration menu
Calibration menu
Operation features
Normal display operation
Switching the TR150 on and off
RANGE button
HOLD button
GROSS/NET button
SHUNT CAL button
PEAK button
TROUGH button
Configuration menu parameters
Calibration menu parameters
Calibration procedures
Specifications
Mechanical dimensions
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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 chip (EEPROM) 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.
{ Ļ ¯ ųΆ Ç95{ { őļ ŷŎų
Analog Signal
Digital TEDS
• SENSOR MANUFACTURER
• MODEL NUMBER
• SERIAL NUMBER
• MEASUREMENT RANGE
• 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 revolutionising measurement and automation. With Transducer Electronic Data Sheets (TEDS),
your data acquisition system can detect and automatically configure sensors. This technology provides:
ŸReduced configuration time by eliminating manual data entry
ŸBetter sensor tracking by storing data sheets electronically
ŸImproved accuracy by providing detailed calibration information
ŸSimple asset management by eliminating paper data sheets
ŸReliable sensor location by identifying sensors electronically
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Introduction
The TR150 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 85Ω
upwards can be used with the TR150.
Configuration and calibration of the TR150 is achieved using the front panel push buttons to navigate through a very
simple menu structure.
User functions available on the TR150 include:-
ŸRange Selection
ŸDisplay Hold/Freeze
ŸGross/Net indication selection
ŸPeak Hold selection
ŸTrough Hold selection
ŸShunt Cal check
The TR150 is powered by two internal non-rechargeable AA alkaline batteries.
TR150 Quick Guide
Important Note
The TR150 is supplied calibrated to a particular load cell. All user functions are available via the front keypad. Do NOT
attempt to re-calibrate the TR150, unless you are authorised and have the equipment available to do so.
User Operation
Operation
annunciators
Unit labels
Full 7 digit LCD
display
Push buttons
used for normal
operation and
configuration
lb kg
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Electrical Connection Information
Sensor Connections
The standard sensor connection is a 5 pin 723 series Binder connector. The wiring for this is detailed below:-
PIN 1 +ve Excitation
PIN 2 -ve Excitation & TEDS Common
PIN 3 +ve Signal
PIN 4 -ve Signal
PIN 5 TEDS
RS232 Port Connections
If the TR150 has been ordered with the optional RS232 output, then this will be available via a 8 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 whilst trying to insert the range legends, or if you need to change the internal shunt calibration resistor.
These are shown below for reference only:-
Sensor connections
Shunt calibration resistor
Sensor connections
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To switch the TR150 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 100kΩ 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 TROUGH 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 TROUGH button is pressed the display will show the last Trough reading. To
reset the Trough readings press the TROUGH and PEAK buttons simultaneously. When in
TROUGH mode the TROUGH 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 Trough
mode press the TROUGH button
Front Panel Button Function of Button in Normal Operation Mode
There are six push buttons on the front panel of the TR150, which are available for use in normal
operation. Each of these is described below:
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{ 9Ċ ù9 ʼnh 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
The TR150 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.
Menu Struture
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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.
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
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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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.
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 TROUGH
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
Press to skip to next menu item
Press to set overload alarm
This allows the setting of a visual overload. The value entered is the display value at which
the TR150 displays OVErLOAd.
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
Configuration Menu
To enter the CONFIGURATION MENU, press and hold and button for 3 seconds
SEt ZEro
x
x
x
x
SEt rAtE
SEt OUEr
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