Mantracourt PSDS-HSBK Manuel utilisateur

PSDS-HSBK User Manual

mantracourt.com

PSDS-HSBK

Portable Sensor Display –Strain Bridge

Mantracourt Electronics Limited PSDS User Manual 
1 
Introduction / Overview ......................................................................................................................................3
Key Concepts.........................................................................................................................................................3
Calibration Ranges .....................................................................................................................................................................................3 
Advanced Flexible Multi-Point Calibration .......................................................................................................................................4 
Display Modes..............................................................................................................................................................................................4 
Decimal Point Position and Resolution..............................................................................................................................................4 
TEDS (Transducer Electronic Data Sheet)..........................................................................................................................................5 
Basic concept ...........................................................................................................................................................................................5 
How it works.............................................................................................................................................................................................5 
Advantages ...............................................................................................................................................................................................5 
PSD Specifics............................................................................................................................................................................................6 
Supported TEDs Hardware Devices............................................................................................................................................6 
Extended TEDS Calibration Options...........................................................................................................................................6 
Configuration Customisation .................................................................................................................................................................7 
Measurement Block..............................................................................................................................................8
User Operation......................................................................................................................................................9
Keypad ............................................................................................................................................................................................................9 
Display.......................................................................................................................................................................................................... 11 
Default Display Modes...................................................................................................................................................................... 11 
Simple Mode .................................................................................................................................................................................... 11 
Cumulative Zeroing ....................................................................................................................................................................... 12 
Hold...................................................................................................................................................................................................... 12 
Min / Max........................................................................................................................................................................................... 12 
Delta..................................................................................................................................................................................................... 13 
Go / No Go........................................................................................................................................................................................ 13 
Icons ......................................................................................................................................................................................................... 14 
Full Screen Messages......................................................................................................................................................................... 15 
Menu................................................................................................................................................................... 16 
Menu Basics ............................................................................................................................................................................................... 16 
Menu Structure .................................................................................................................................................................................... 16 
Editing Parameter Values................................................................................................................................................................. 21 
Editing Numeric Values................................................................................................................................................................ 21 
Editing Text ....................................................................................................................................................................................... 22 
Connections ....................................................................................................................................................... 23 
Strain Bridge Sensor Field Cable Connector Wiring .................................................................................................................. 23 
Field Cable Preparation (4 Wire Shown) .................................................................................................................................... 24 
Connector Assembly .......................................................................................................................................................................... 24 
Six (6) Wire Measurement Explained ............................................................................................................................................... 25 
Wiring a Six Wire Strain Bridge Sensor....................................................................................................................................... 25 
Wiring a Four Wire Strain Bridge Sensor (Existing four wire cable) ................................................................................ 25 
Wiring a Four Wire Strain Bridge Sensor (On extended six wire cable) ........................................................................ 26 
Shield Connection............................................................................................................................................................................... 26 
Where Strain Bridge Sensor Chassis is Metallic (or surrounding strain bridge sensor structure) .................. 26 
Where There is No Option to Connect to Strain Bridge Sensor Chassis.................................................................. 26 
Toolkit Configuration........................................................................................................................................ 27 
Home ............................................................................................................................................................................................................ 27 
Information................................................................................................................................................................................................. 28 
Settings ........................................................................................................................................................................................................ 29 
Interface Tab ......................................................................................................................................................................................... 29 
Key Actions Tab.................................................................................................................................................................................... 30 
Clock Tab ................................................................................................................................................................................................ 32 
Import / Export ......................................................................................................................................................................................... 33 
Export Tab .............................................................................................................................................................................................. 33 
Export Tab –Clone Export ............................................................................................................................................................... 34 
Import Tab ............................................................................................................................................................................................. 35 
Standard Export File ...................................................................................................................................................................... 35 

Mantracourt Electronics Limited PSDS User Manual 
2 
Clone Export File ............................................................................................................................................................................. 36 
Configuration............................................................................................................................................................................................. 37 
Menus Tab ............................................................................................................................................................................................. 37 
Calibration Tab ..................................................................................................................................................................................... 38 
Display Modes Tab ............................................................................................................................................................................. 39 
Units Tab................................................................................................................................................................................................. 40 
Custom Units Tab................................................................................................................................................................................ 41 
Firmware Upgrade Tab...................................................................................................................................................................... 42 
Displays Tab........................................................................................................................................................................................... 43 
Summary Sub Tab .......................................................................................................................................................................... 43 
Mode 1…6 Sub Tab........................................................................................................................................................................ 44 
Select New......................................................................................................................................................................................... 45 
Management Tab................................................................................................................................................................................ 46 
Logging........................................................................................................................................................................................................ 48 
Measurement ............................................................................................................................................................................................ 51 
Calibration .................................................................................................................................................................................................. 54 
Summary Tab........................................................................................................................................................................................ 54 
Range 1 –6 Tabs ................................................................................................................................................................................. 56 
Calibration Types ............................................................................................................................................................................ 58 
Gain and Offset........................................................................................................................................................................... 58 
Multi-Point.................................................................................................................................................................................... 59 
Polynomial .................................................................................................................................................................................... 60 
Management Tab................................................................................................................................................................................ 61 
Alarm............................................................................................................................................................................................................. 62 
Enclosure ............................................................................................................................................................ 64 
Dimensions................................................................................................................................................................................................. 64 
Battery Compartment............................................................................................................................................................................. 64 
USB Connection........................................................................................................................................................................................ 64 
Accessories ................................................................................................................................................................................................. 65 
Magnetic Pad........................................................................................................................................................................................ 65 
Fixed Mount .......................................................................................................................................................................................... 66 
Carry Case .............................................................................................................................................................................................. 67 
USB Cable............................................................................................................................................................................................... 67 
Connector Conversion Cable.......................................................................................................................................................... 67 
Specification ...................................................................................................................................................... 68 
Strain Gauge Measurement................................................................................................................................................................. 68 
Electrical, Mechanical & Environmental.......................................................................................................................................... 68 
Units of Measure ............................................................................................................................................... 69 
EU Declaration of Conformity .......................................................................................................................... 75 
UK Declaration of Conformity.......................................................................................................................... 76 
Warranty ............................................................................................................................................................ 77 
 

Mantracourt Electronics Limited PSDS User Manual

Introduction / Overview

The PSD (Portable Sensor Display) product group is a range of hand-held instrumentation which will cover

different sensor types in the future.

The PSDS-HSBK (Portable Sensor Display Standard) for strain bridge sensors is a microprocessor based portable

display instrument designed to interface with any full bridge sensor with an output sensitivity of up to 480mV/V.

Bridge resistances from 85 ohms upwards can be used with the PSD.

This module can be either used as a handheld device or, using the optional mounting accessories, or attached to

equipment, dashboards, walls, or desks.

Configuration and calibration of the PSD is achieved using the free PC Toolkit software and also limited

configuration and two-point calibration via the front panel keypad menu system.

User functions available on the PSD include:-

•Range Selection

•Display Hold/Freeze

•Gross/Net indication selection

•Peak Hold selection

•Trough Hold selection

•TEDS support

The PSD is powered by two internal non-rechargeable AA alkaline batteries and can also be USB powered.

Key Concepts

Calibration Ranges

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 ie. 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 so for settings such as

selected units and tare values etc these 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.

Mantracourt Electronics Limited PSDS User Manual

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 xis the m/V input and the coefficients a, b, c, d, e, ...

are supplied by the user;

Calibrated Output = a.x0 + b.x1 + c.x2 + d.x3 + e.x4 + …

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 can be selected from a library of

different scenarios when using the Toolkit to configure the handheld.

These display modes are independent to whatever Calibration Range is currently selected.

Decimal Point Position and Resolution

Because the PSDS 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 PSD.

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 PSD 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 PSD 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 a TEDs device is connected showing that unit. Decimal places can be

set from zero to seven.

Mantracourt Electronics Limited PSDS User Manual

The resolution is disabled by default and is unwieldy to allow changing via the keypad or menu system, 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

Mantracourt Electronics Limited PSDS User Manual

PSD 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 PSD 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 PSD 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 PSD 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 PSD Calibration Range.

Supported TEDs Hardware Devices

DS2431 and compatible devices

DS2433 and compatible devices

DS28EC20 and compatible devices

A 4 Kbit (or larger) device is recommended where additional TEDS calibration templates are

to be included.

Extended TEDS Calibration Options

The PSD 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

behaviour 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 PSD

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)

Mantracourt Electronics Limited PSDS User Manual

Configuration Customisation

Many actions and features of the PSD can be hidden or disabled. If certain features mentioned in this manual are

not visible on your particular PSD 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 offers 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 recalibrated 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.

Mantracourt 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, but this will involve contacting your supplier as Mantracourt 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!

See later Toolkit Configuration –Configuration

Mantracourt Electronics Limited PSDS User Manual

Measurement Block

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.

Key:

Mantracourt Electronics Limited PSDS User Manual

User Operation

Keypad

The keypad has some functionality that is fixed and 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.

Key

Function

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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