Interface 9325 Bedienungsanleitung
Installation User Manual
9325 Installation & User Manual
9325
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Introduction / Overview
Key Concepts
Calibration Ranges
Advanced Flexible Multi-Point Calibration
Display Modes
Decimal Point Position and Resolution
TEDS (Transducer Electronic Data Sheet)
Basic Concept
How it Works
Advantages
9325 Specifics
Supported TEDS Hardware Devices
Extended TEDS Calibration Options
Configuration Customization
Measurement Block
User Operation
Keypad
Display
Default Display Modes
Simple Mode
Cumulative Zeroing
Hold
Min / Max
Delta
Go / No Go
Icons
Full screen Messages
Menu
Menu Basics
Menu Structure
Editing Parameter Values
Edition Numeric Values
Editing Text
Connections
Strain Bridge Sensor Field Cable Connector Wiring
Field Cable Preparation (4 Wire Shown)
Connector Assembly
Six (6) Wire Measurement Explained
Wiring a Six (6) Wire Strain Bridge Sensor
Wiring a Four (4) Wire Strain Bridge Sensor (Existing four wire cable)
Wiring a Four (4) Wire Strain Bridge Sensor (On Extended Six wire cable)
Shield Connection
Where Strain Bridge Sensor Chassis is Metallic
Where There is No Option to Connect to Strain Bridge Sensor Chassis
Toolkit Configuration
Home
Information
Settings
Interface Tab
Key Actions Tab
Clock Tab
Contents
Import / Export
Export Tab
Export Tab (Clone Export)
Import Tab
Standard Export File
Clone Export File
Configuration
Menus Tab
Calibration Tab
Display Modes Tab
Units Tab
Custom Units Tab
Firmware Upgrade Tab
Displays Tab
Summary Sub Tab
Mode 1 - 6 Sub Tab
Select New
Management Tab
Logging
Measurement
Calibration
Summary Tab
Range 1 - 6 Tabs
Calibration Types
Gain and Offset
Multi-Point
Polynomial
Management Tab
Alarm
Enclosure
Dimensions
Battery Compartment
USB Connection
Accessories
Magnetic Pad
Fixed Mount
Carry Case
USB Cable
Connector Conversion Cable
Specification
Strain Gauge Measurement
Electrical, Mechanical & Enviornmental
Units of Measure
Warranty
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The 9325 (Handheld Display) for strain bridge sensors, is a microprocessor based portable display
instrument. It is designed to interface with any full bridge sensor that has an output sensitivity of up to
480mV/V. Bridge resistances from 85 ohms upwards can be used with the 9325.
This module can either be used as a handheld device or with the addition of optional mounting
accessories, it can be attached to equipment, dashboards, walls, or desks.
Configuration and calibration of the 9325 is achieved using the free PC Toolkit software. limited
configuration and two-point calibration is available via the front panel keypad menu system.
User functions available on the 9325 include:
• Range Selection
• Display Hold/Freeze
• Gross/Net indication selection
• Peak Hold selection
• Trough Hold selection
• TEDS support
The 9325 is powered by two internal non-rechargeable AA alkaline batteries and can also be USB
powered.
Introduction / Overview
There are six calibration ranges available that can be individually calibrated for use with strain bridges
that do not have TEDS capability.
These ranges can be used for connecting to different strain bridges or for different sections of the
same strain bridge (Example: one for compression and one for tension). The ranges are user
selectable and independent of what is physically connected to the handheld.
The number of ranges available and the ability to switch between these ranges can all be controlled
when configuring the handheld.
Each of these ranges will remember settings that contribute to the user experience. Settings such as
selected units and tare values will be remembered and reused as each range is selected again.
In addition, there is also support for TEDS calibration tables in TEDS capable connected devices
where the calibration information is held in the connected sensor. The user experience settings will be
remembered for the last twenty connected TEDS sensors. There is an option to disable TEDS
support on a particular TEDS enabled sensor so the handheld calibration ranges can then be used
instead.
Key Concepts
Calibration Ranges
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Calibrated Output = a.x0 + b.x1 + c.x2 + d.x3 + e.x4 + …
Advanced Flexible Multi-Point Calibration
The advanced calibration system for the six calibration ranges supports a very flexible calibrate-
return-calibrate model where a calibration range can be revisited at any time and individual points can
be added or deleted.
There is also no restriction on the order that calibration points can be added in terms of input value.
Points can be added in ascending, descending or random order of input magnitude.
A simple alternative to multi-point calibration is gain & offset, where the gain and offset values are
supplied by the user:
Calibrated Output = offset + gain X input
More flexible polynomial calibration is also supported where x is the m/V input and the coefficients a,
b, c, d, e, ... are supplied by the user:
Display Modes
Display modes determine what is visible on the LCD display and what actions are available from the
set of three soft keys (Keys whose functions are dynamic and will change depending on what mode is
being viewed and local conditions).
There are up to six available display modes that can be cycled through and selected from a library of
different scenarios when using the Toolkit software to configure the handheld.
These display modes are independent to whatever Calibration Range is currently selected.
Decimal Point Position and Resolution
Because the 9325 can handle so many engineering units out of the box and allow conversion
between suitable units the way it handles decimal point positions and resolution (For displays) needed
a complete overhaul compared to the original 9320.
On the original having only two calibration ranges (And no concept of engineering unit conversion),
each range had its own formatting settings for decimal points and resolution and these ranges were
very often used to deliver results from the same strain bridge sensor in two different engineering units.
The new 9325 has six calibration ranges available where each can automatically convert between the
calibrated units and any other unit the user wants to display the values in. Therefore, because each
calibration range can display a whole range of engineering units (Although this can be limited by the
user it still has that capability) setting the decimal position and resolution per range does not work
anymore. I.e. changing from grams to tonnes would be nonsensical if they both shared the setting for
1 decimal place for example. This is even worse for resolution settings when switching between kg
and lbs as the display would no longer count in increments suitable for both units.
So, the new 9325 now supports settings for both decimal point position on a per unit basis and
resolution on a per calibration range basis.
Out of the box the decimal point position for all units has a sensible default but these can easily be
changed using the keypad (until the user chooses to disable that feature) by long presses on the left
and right keys. When you are viewing a particular unit simply adjust with the keys and this setting will
be remembered any time that unit is selected in any calibration range or if a TEDs device is
connected showing that unit. Decimal places can be set from zero to seven.
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The resolution is disabled by default, but this is fully adjustable using the Toolkit.
Resolution is stored against each Calibration Range (Or in the case of a TEDS device, per device)
and is set in the base calibrated units for that range.
For the chosen display units resolution snaps to the nearest appropriate 1,2 or 5 multiple in that unit.
i.e.( .0001, .001, .01, .1, 1, 10, 100, .0002, .002, .02, .2, 2, 20, 200, .0005, .005, .05, .5, 5, 50, 500.)
This selection works across all display modes
TEDS (Transducer Electronic Data Sheet)
"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 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 maybe 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. 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.
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
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9325 Specifics
All standard TEDS devices contain a basic 2-point calibration. TEDS devices can also optionally hold
more than one extended calibration table; template ID=40 (multi-point calibration) or template ID=41
(polynomial calibration). When you first connect a new TEDS device to the 9325 a message will be
displayed stating that a new TEDS device has been detected and that default settings have been
used.
The first detected, valid calibration table from the TEDS device will be selected.
The user can select an alternative calibration table from the menu or Toolkit and this selection will be
remembered and the table will be re-selected next time the device is plugged in.
The 9325 will remember the last twenty connected TEDS devices so will automatically select the most
recently used calibration table and will re-use the User Experience parameters such as Units and tare
values.
There is also an option to ignore TEDS on specific devices so that the 9325 Calibration Ranges can
be used instead of any Calibration Tables held in the connected TEDS device.
In this case the User Experience parameters will be used from the selected Calibration Range. i.e.
The device will act as if there is no TEDS chip until the user re-enables TEDS for this device. When a
TEDS disabled device is connected again it will automatically switch to the last used 9325 Calibration
Range.
Supported TEDS Hardware Devices
DS2431 and compatible devices
DS2433 and compatible devices
DS28EC20 and compatible devices
Note: A 4 Kbit (or larger) device is recommended where additional TEDS calibration templates are to
be included.
Extended TEDS Calibration Options
The 9325 supports up to five extended TEDS calibration tables in addition to the standard 2-point
calibration. These can be any combination of template ID=40 (multi-point calibration) or template
ID=41 (polynomial calibration). This could be used to provide multiple calibrations for the transducer,
for example high range, low range, tension & compression.
Typically, a TEDS-enabled transducer would be supplied with one additional calibration template.
The default behavior is to select the first calibration template, or the standard 2-point if a calibration
template is not found. The user can cycle between all the available calibrations unless this feature
has been restricted.
The TEDS standard allows very large or complex calibration templates to be defined. For practical
reasons the 9325 imposes restrictions on the size and complexity that is allowed.
Multi-Point Calibration (template ID=40)
• Maximum calibration points = 10
Polynomial Calibration (template ID=41)
• Maximum number of segments = 1
• Maximum number of coefficients = 10 (10th order polynomial)
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Configuration Customization
Many actions and features of the 9325 can be hidden or disabled. If certain features mentioned in this
manual are not visible on your particular 9325 then these features have most likely been locked /
protected by your supplier.
The flexible configuration customization offered by the handheld in conjunction with the toolkit is a
unique and powerful way to tailor the device to individual requirements.
• User calibration can be locked down in its entirety and be inaccessible without the password
or, using Configuration, only specific calibration ranges may be made available for re-calibration using
the toolkit.
• The availability of calibration ranges, display modes, menu items and other features can be
configured to simply limit the available options to a purely handheld user. The Configuration is left
open so that the handheld can be freely configured again using the toolkit whenever required by
anyone.
• The new ‘personality’ designed using the configuration settings can also be protected behind
a password so that the handheld cannot be reconfigured or re-calibrated by anyone with a toolkit,
unless they know the password. This includes restoring saved settings to a handheld. i.e. the
protected configuration is locked permanently and cannot be changed by anyone without the
password.
• These options allow you to define how the handheld acts and then lock it down to enable
redistribution as a specific device for a specific task knowing that this configuration cannot be
tampered with.
Note: Interface takes the security of protected devices very seriously. Nobody will be able to unlock
any of your protected calibration or configuration without your original password. A forgotten password
cannot be recovered, but the protected sections can be unprotected again. This will involve contacting
your supplier as Interface will need to verify that you have the rights to the protected data. There will
be a charge for this service.
MAKE SURE YOU RECORD ANY APPLIED PASSWORDS!
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The following diagram shows how values and flags are generated. This entire block is processed at
the Measurement Rate selected. Some processes (such as the calibration and linearization) are only
shown as a single block due to their complexity.
Measurement Block
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User Operation
Keypad
The keypad has some functionality that is fixed, some that can be configured and some that changes
depending on what is on the LCD display. The handheld can optionally sound a beep when keys are
pressed.
The top right key doubles as the power key. Hold this
for approximately two seconds to turn on or off the
handheld.
The three keys along the top of the keypad are soft
keys and relate to the three descriptions shown directly
above them on the LCD display. The action of these
keys will depend on what is currently being viewed.
The navigation keys are used for various purposes
such as selecting the current calibration range,
selecting the current display, navigating the menu
system or editing string and numeric values.
The OK key is used to open the menu (If that has been
allowed in the configuration) and to select menu items
and complete editing sessions.
Later we will explain how to use the keys to navigate
the menu system.
When not in a menu the Up/Down keys can perform
one of a few user definable functions, but the default is
to cycle through all available calibration ranges.
If a TEDS device is attached, then these keys will cycle
through any valid Calibration Tables held in the device.
If there is no TEDS device (or manual override for that
particular TEDS device has been set), then the keys
will cycle through the internal device Calibration
Ranges.In both the menu and the toolkit, the user may
also select an action for a long press. A long press is
where the key is held down for over a second before
being released.
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