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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:

Summary of Contents for PSDS-HSBK

Page 1: ...PSDS HSBK User Manual mantracourt com PSDS HSBK Portable Sensor Display Strain Bridge ...

Page 2: ... 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 Se...

Page 3: ...rement 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 Environm...

Page 4: ...l 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 tens...

Page 5: ... 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 differe...

Page 6: ...alibration 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 imple...

Page 7: ...l 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 ...

Page 8: ...he 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 witho...

Page 9: ...rement 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 ...

Page 10: ...n 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 t...

Page 11: ...nu 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 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 The OK key can also be held down for a long press Approx one second then released to cancel any current editi...

Page 12: ...own in the appropriate sections of the manual Default Display Modes The handheld comes with a set of default Display Modes but the user can swap them for up to six available from a library contained in the Toolkit The library of Display Modes will grow with new releases of the Toolkit or may be available for download from our web site Simple Mode Used when you only want a simple single displayed v...

Page 13: ...Gross value or change displayed units Hold This mode allows you to Hold the main display by using a soft key whilst still seeing the Live value underneath The other soft keys allow being able to Zero the main display or go back to displaying Gross As usual there is a soft key to allow Units to be selected Min Max This display shows the min and max values underneath the large normal value display S...

Page 14: ... also available Go No Go This is a very useful display mode for use in conjunction with the Alarm Limits values The display simply shows PASS when the value is between those limits and FAIL if the value is outside those limits The High limit Low limit and actual Value are displayed underneath Soft keys allow for toggling between Zero and Gross and the Units can be selected As there is only one glo...

Page 15: ...ing performed by the Toolkit or other software The Scale Steady functionality is active but the reading is not steady The measurement system is operating in 4 wire mode instead of 6 wire mode This feature is only available in certain versions and is not available to change by the user A TEDs device is detected as being connected The main display is showing the Net value because a Tare has been exe...

Page 16: ...s been disconnected so the handheld is reverting to the last selected calibration range Click OK MULTIPLE TEDS ARE NOT SUPPORTED More than one TEDs device has been detected and this is not allowed NEW TEDS DEVICE USE SESSION DEFAULTS A new TEDs device has been detected so default values will be used for all settings not held in the TEDs device itself KNOWN TEDS DEVICE SESSION RESTORED A TEDs devic...

Page 17: ...y one item can be selected at a time then the current active selection is indicated by a leading dot to the left All items that this can apply to are shown as a below for clarity Some items will lead to a displayed value or text which may be edited See the next section regarding Editing Values where this is described Shown as a following for clarity Menu Structure MENU Menu is activated by holding...

Page 18: ...No Action KEYS LEFT RIGHT Select this item to choose the action when the left and right keys are pressed When not in the menu RANGE SELECTION Select the next Calibration Range Only for non TEDS devices DISPLAY SELECTION Select the next Display Mode DECIMAL PLACES Increase or decrease the number of decimal places displayed for all displayed values using the same units as the main display DISABLED N...

Page 19: ...is disabled OUTSIDE LIMITS Alarm is triggered when the source value is below the Alarm Low level or above the Alarm High Level INSIDE LIMITS Alarm is triggered when the source value is higher than the Alarm Low level and lower than the Alarm High Level ABOVE HIGH Alarm is triggered when the source value is above the Alarm High level BELOW HIGH Alarm is triggered when the source value is below the ...

Page 20: ...e SET MIN LIMIT Display and edit the Minimum user level in base units for this range When the value falls below this a full screen Underrange message will be displayed SET MAX LIMIT Display and edit the Maximum user level in base units for this range When the value falls below this a full screen Overrange message will be displayed CALIBRATION This menu contains settings regarding Calibration CALIB...

Page 21: ...electing these options the detected mV V will be displayed ready to either select OK or to manually edit CAPTURE mV V HIGH APPLY Use all of the information captured above to perform the actual calibration TEDS Only available if a TEDS device is attached RANGE NAME Displays and edits the global name to give each TEDS Calibration Table This applies to all TEDS devices TEDS CAL TABLE 1 Select a Calib...

Page 22: ...election and this digit will flash alternatively displaying its character and an underlined space Key Function These keys are used to change the currently selected Flashing digit or character These keys will increment or decrement the currently selected digit In the case of text the letters of the alphabet will be cycled through The soft keys at the bottom will where appropriate allow you to Toggl...

Page 23: ...Function These keys are used to change the currently selected Flashing digit or character These keys will increment or decrement the currently selected digit In the case of text the letters of the alphabet will be cycled through The soft keys at the bottom will where appropriate allow you to DEL Delete the current character selection INS Insert another character to the left of the flashing cursor ...

Page 24: ...meter mm Binder Order Code MEL Stock code 2 5 to 4 0 99 0771 000 08 Not Stocked 4 0 to 6 0 99 0771 001 08 427 739 6 0 to 8 0 99 0771 002 08 427 741 Recommended cable BELDEN 9504 4 pair cable Max cable size 0 25 mm AWG 24 List of conductor identification and functions Cable pair Suggested Colour Connector Pin Function 1 White 1 Bridge Sensor Reference ve Black 2 Bridge Sensor Reference ve 2 Green 3...

Page 25: ...ngles The diagram below shows the recommended wire lengths to fit inside the plug body This also shows the recommended method to use when one wire is required to connect to two connector pins Connector Assembly If a cable is already connected to the connector remember to unscrew the cable clamp before unscrewing the main body of the connector otherwise you risk twisting the cable and breaking the ...

Page 26: ...ring a Six Wire Strain Bridge Sensor Where possible six core cable should be used to connect the strain bridge sensor directly to the PSD connector If the cable has twisted pairs refer to the wiring table above where it is indicated which connections should share a twisted pair Note that shield connections are described further on in this section Also note that the extra two cores required for TED...

Page 27: ... described further on in this section Also note that the extra two cores required for TEDs connection If used are not shown in the diagram Shield Connection All connection cables should be shielded screened and the recommended shield connection point is as follows Where Strain Bridge Sensor Chassis is Metallic or surrounding strain bridge sensor structure Cable shield should be connected to the st...

Page 28: ...s a virtual COM port on the PC All detected PSD devices are displayed in the drop down list and you need to select the appropriate one If only one handheld is detected you may not see this page as the Toolkit will automatically select and connect to it After selecting the Serial port click the Connect button Pressing F12 will toggle on off the information panel displayed on the right of the window...

Page 29: ...Mantracourt Electronics Limited PSDS User Manual 28 Information This page displays useful information about the connected handheld ...

Page 30: ...will come on when a key is pressed and turn off again if no key is pressed for the duration set below Duration s entry field Set the time to wait without a key press before the backlight turns off Only applies if Mode is set to Auto Brightness slider Change backlight brightness Move the slider to set the desired backlight brightness level A brighter backlight will result in lower battery life Auto...

Page 31: ... keypad Left Right keys are pressed Range Selection Select the next Calibration Range Display Selection Select the next Display Mode Decimal Places Increase or decrease the number of decimal places displayed for all displayed values using the same units as the main display Disabled No action Long Press drop down list Select the action to take place when the keypad Up Down keys are pressed and rele...

Page 32: ...al places displayed for all displayed values using the same units as the main display Disabled No action Long Press drop down list Select the action to take place when the keypad Up Down keys are pressed and released after approximately two seconds Range Selection Select the next Calibration Range Display Selection Select the next Display Mode Decimal Places Increase or decrease the number of deci...

Page 33: ...esetting after the new batteries are fitted Item Description Hour entry field Set the handheld internal clock hour Minute entry field Set the handheld internal clock minute Year entry field Set the handheld internal clock year Month entry field Set the handheld internal clock month Day entry field Set the handheld internal clock day Date Format Drop down list Select the desired date format Use Com...

Page 34: ...ort The entire device is exported and on import will create a clone of the original device Any locked protected sections are still respected so no exports can be made from a locked device nor can a locked device be overwritten without knowledge of the passwords Export Tab This page allows you to perform a simple Export or an advanced Clone Export Export This exports device settings to a file on th...

Page 35: ... forgotten password will require proof of access rights and may require a return to supplier and may incur additional cost If the connected device has a password locked calibration or configuration section then the same passwords must be entered to proceed Summary To successfully create a Clone Export the connected device must be unlocked or the passwords known for those locked sections If a secti...

Page 36: ...ndard Export File You can choose which sections to import The choices available will depend on whether they are present in the data file and whether those sections are protected in the connected device itself Calibration Calibration settings Configuration The configuration which includes what settings are available to change which menu items are visible etc This also includes the Display Modes Set...

Page 37: ...libration intact NOTE If the Clone Export file contains encrypted passwords to protect either the calibration or configuration sections then it must be understood that those sections will become locked in the connected device once the data file is imported There is no way to unlock a protected section if the password is unknown Resetting of a forgotten password will require proof of right to acces...

Page 38: ...ings of a handheld from a previously exported settings file without knowing the password This section may have been locked with a password In this case then the padlock icon will indicate locked and not all tabs will be visible To unlock the section click on the padlock icon and enter the correct password Menus Tab This tab allows you to select which menu items are available from the handheld Refe...

Page 39: ...ges you can choose whether each is selectable and calibratable Selectable Off Calibration range will not be selectable via menu or keypad On Calibration range will be selectable via menu or keypad Can Calibrate Off This calibration range cannot be calibrated by the user On This calibration range can be calibrated by the user The calibration availability is useful for providing preset calibration r...

Page 40: ...from selection using the keypad If that functionality has been configured Note that future display modes may provide the ability to select other modes via the soft keys The selection options here will not stop that action but only the selection from the keypad Off Display Mode is unavailable for selection On Display Mode is available for selection ...

Page 41: ...s simply select one or more items Hold CTRL keyboard key to select multiple items and click the appropriate arrow symbol When the user uses the Units soft key to cycle around selected units the list will be limited to those that are relevant to the calibrated base units Each unit has a definable display format that sets the desired number of decimal places shown The format can be changed here by r...

Page 42: ...om units at the end of the table These are selectable as either calibrated or available display units and the conversion factors used and the description shown will come from the data entered here Item Description Index label Indicates the index of the custom unit Name entry field Enter the text to be displayed for this custom unit i e kg lbs etc Gain entry field Enter a gain value for this custom...

Page 43: ...hed using the Run As Administrator option to enable firmware update to work Item Description Firmware Upgrade button Click the button to open the upgrader window Click Load File button to select the srec firmware file Click Start Programming to initiate the update then follow onscreen instructions Remove all power from the device before attempting to reconnect ...

Page 44: ...oftware and custom modes may be imported if you have been supplied a display mode update file Summary Sub Tab This tab shows which Display Mode has been selected for each of the six available slots The currently selected Display Mode of the handheld is indicated by the display number being shown in triangular brackets The right most column shows a graphical mimic of how the display is formatted ...

Page 45: ...equired Display Modes Item Description Title label Displays the title of the display mode currently selected for this slot Description label Displays the description of the display mode currently selected for this slot Swap With buttons Swap the current display mode with the one in another slot Select New button Select a new display mode for the current slot See the next section for a description ...

Page 46: ...file Custom files may be sent to you by your supplier and once imported will remain in the list of available Display Modes Here you can configure the user interface of the handheld and change settings of the backlight and keypad Item Description Display Mode row Displays the title and description of the display mode currently selected for this slot Import button Opens the file dialog window to all...

Page 47: ...s and may require a return to supplier and incur additional cost DO NOT FORGET YOUR PASSWORD Item Description New Password button Allows a new password to be set to protect the configuration settings of the device This field will be available whether a password exists or not Confirm Password button The new password must be entered in this field as well as the previous field Set Password button Cli...

Page 48: ...Mantracourt Electronics Limited PSDS User Manual 47 Allow Key Action Change switch When set to off the user cannot change the action assigned to the left right up and down keys on the Settings page ...

Page 49: ...0 times per second 100 SPS 20 Log every 20 milliseconds 50 times per second 50 SPS 50 Log every 50 milliseconds 20 times per second 20 SPS 60 Log every 60 milliseconds 16 6 times per second 16 6 SPS 100 Log every 100 milliseconds 10 times per second 10 SPS 200 Log every 200 milliseconds 5 times per second 5 SPS 500 Log every 500 milliseconds 2 times per second 0 5 SPS 1000 Log every 1000 milliseco...

Page 50: ... chart will be populated with missing data when resumed again Click to pause chart Click to resume chart Autoscale switch Select whether to automatically scale the chart Off Chart will not automatically scale to suit data as it is added Click the Reset View button to perform a one off auto scale On Chart will automatically scale to the data as it is added Show Value switch Select whether to show i...

Page 51: ...m and maximum value in the chart data Off Nothing is displayed On Min and max Of the currently viewed data lines are shown in red and green respectively Load Log File button Opens a file dialog to allow you to select a previously logged data file This file data will be loaded into the chart and can be viewed with all the tools available The button caption will change to Back To Realtime Chart afte...

Page 52: ...es are referring to and will also set what the System Zero Zero Masking Resolution and Scale Steady settings refer to i e these settings are independent for each internal Calibration Range Measurement Rate drop down Select the desired internal measurement rate The faster the measurement the better the detection of fast transient min and max values will be Note that this does not change the speed a...

Page 53: ...ue and can compensate for fixed installations where a load is already present before the actual item to be weighed is present For example this could be a metal tray on a weigh scale This value can be directly edited or the following two buttons used to change the value Zero Now button Set the value of System Zero to the current calibrated engineering to give a zero Gross value Remove button Set th...

Page 54: ...et Net Max live label Shows the maximum value the Net has reached since last reset Net Delta live label Shows the difference between the minimum and maximum value the Net has reached since last reset Display Resolution entry field The current setting for the resolution of the display The resolution Zero Mask entry field Enter a value band within which the display will show zero Reset Statistics bu...

Page 55: ...ws the name assigned to this calibration range Units header Shows the engineering units that this calibration range has been calibrated in Type header Shows the type of calibration that has been performed on this range Options are Gain Offset Calibration with a single gain and offset Multi Point Multi point calibration using multiple gain and offset segments Polynomial Multi point calibration usin...

Page 56: ...Sensitivity header Indicates the sensitivity range selected for this range 7 5 mV V 15 mV V 30 mV V 60 mV V 120 mV V 240 mV V 480 mV V Date header The date when the calibration was performed Initials header The initials entered at the time of calibration ...

Page 57: ...Item Description Name edit field Shows the name assigned to this calibration range Click to enter a new name Mode label Indicates the type of calibration used internally By default the calibration modes are calibrated for 6 wire connections to eliminate the effect of cable length on the calibration See connection section of the manual where it explains how to wire up for a 4 wire connection to the...

Page 58: ...alibration type NOTE The advanced re entrant calibration functionality allows you to add calibration points in any order You can even come back to the calibration later to add more points or remove them For example you may perform various points in compression then the next day return to add more points in tension Initials header Enter calibrator initials Live Input label Indicates the live value ...

Page 59: ...nsists of a single gain and offset applies to all input values It consists of one calibration point Click into the field in the table on the right to set the Offset and Gain Item Description No header This simply indicates which calibration point the row refers to In this case there is only ever one point Offset edit field Click and enter the required offset value Gain edit field Click and enter t...

Page 60: ...ontinue applying further calibration points This is useful for example if you calibrated 5 compression points on one day then returned to complete 5 further tension points on another day Points can be added in any order of input level Click into the field in the table on the right to set the Input and Output values Item Description No header This simply indicates which calibration point the row re...

Page 61: ...he Points button to add one point at a time Once the polynomial value has been entered the button will be enabled to allow another point to be added This toolkit does not calculate the polynomial values It is assumed that the user is already in possession of appropriate polynomial values to enter Item Description No header This simply indicates which calibration point the row refers to Value edit ...

Page 62: ...gs of the device This field will be available whether a password exists or not Confirm Password button The new password must be entered in this field as well as the previous field Set Password button Click to set the password Clear Password button If a password exists click this button to remove it and to remove protection of the configuration settings A forgotten password cannot be recovered and ...

Page 63: ...he higher level alarm point Low Level edit field Enter the value for the lower level alarm point Actions Beep switch Select on or off to determine whether the beeper sounds when the alarm is active Flash Display switch Select on or off to determine whether the main display flashes when the alarm is active Latched switch Select whether the alarm is only active while the source value is outside of t...

Page 64: ... value is above the high level Below High The alarm is active when the source value is below the high level Above Low The alarm is active when the source value is above the low level Below Low The alarm is active when the source value is below the low level Alarm Properties Image This indicates at what input level the alarm will become active If the input value Shown falls within a red zone then t...

Page 65: ...mm to the height not including any cable Weight with no mating connector is 350 g Battery Compartment Before re attaching the battery compartment cover check the rubber seals and grooves for any debris that may compromise the enclosure s water resistance The battery compartment cover should remain with the handheld case it was shipped with USB Connection The micro USB socket is waterproof but the ...

Page 66: ...following two accessories offer a choice in mounting Magnetic Pad A 66mm diameter rubber coated magnetic pad that can be screwed onto the back of the enclosure provides for a very strong semi permanent attachment to metallic surfaces and works equally well on a vertical surface This is ideal for placing next to machinery in fixed installations An optional included ball joint connection can be used...

Page 67: ... fixing for dashboards desktops and walls Multiple fixing hole positions secure the base to the surface and a dual ball jointed arm connects to the handheld enclosure threaded socket This allows a wide range of positions to be achieved before tightening the arm to fix in place Order Code ACC MT B ...

Page 68: ...ble Although you can plug any micro USB cable into the PSD for communications and configuration a right angled connector puts less mechanical strain on the connector and socket The correctly orientated right angle USB cables are available as an accessory Order Code ACC CB A Connector Conversion Cable This cable allows the original PSD connector to be plugged in to the new PSDS using a conversion c...

Page 69: ...500 14 3 Counts bit Filters 1 Effective sensitivity from 0 5mV V with reduced resolution 2 Linearity error can be further reduced by device linearization calibration 3 Using Energizer L91 3000mAh cells Electrical Mechanical Environmental Parameter Min Typ Max Units Note Display Resolution 128 x 64 pixels Buzzer Acoustic Output 45 dB Power Supply 2x AA LRx or USB powered Power Consumption 35 mA Mea...

Page 70: ...efined units which allow the defining of units not contained in this table Category Unit Symbol Voltage Ratio mV V mV V V V V V µV V µV V Angle radians rad degrees circumference c grade grade minutes seconds revolutions rev Length meters m angstrom Å astronomical unit AU centimeters cm chains gunters ch ell ell em em fathoms fm feet ft furlongs fur inches in kilometers km league lea leagues league...

Page 71: ...e tons short sh tn newtons N kilonewtons kN Force newtons N kilonewtons kN millinewtons mN meganewtons MN crinals crinal dynes dyne grams force gf joules per cm J cm kilograms force kgf kilograms force kp kp kilograms meter second Kg ms ounces force ozf pounds force lbf poundals pdl tons force long tonfl tons force short tonfs tons force metric tonfm kilo pounds force klbf Pressure bar bar atmosph...

Page 72: ...cm meters of water mH2O millibar mbar Speed meter sec m s centimeters sec cm s feet min ft min feet sec ft s kilometers hr km h kilometers min km m kilometers sec km s knots kn meters hr m h meters min m min miles hr mph miles min mpm miles sec mps nautical miles hr n mph nautical miles min n mpm nautical miles sec n mps Angular Velocity radians sec rad s degrees sec s rpm rpm Torsional Stiffness ...

Page 73: ...olts V millivolts mV microvolts µV nanovolts nV kilovolts kV RMS Current amps rms A rms milliamps rms mA rms microamps rms µA rms nanoamps rms nA rms kiloamps rms kA rms Current amps A milliamps mA microamps µA nanoamps nA kiloamps kA RMS Power watts rms W rms milliwatts rms mW rms microwatts rms µW rms kilowatts rms kW rms Power watts W milliwatts mW microwatts µW kilowatts kW horsepower hp Tempe...

Page 74: ...er litre g L pounds per cubic foot lb ft Flow Volume litres per second L s cubic meters per second m s cubic meters per hour m h gallons per minute g m cubic feet per minute cft m litres per minute L m Flow kg per second kg s lbs per second lbs s Concentration cubic meters per cubic meter m m litres per litre L L cubic foot per cubic foot ftm ftm Concentration Mole mole per cubic meter mol m mole ...

Page 75: ...Mantracourt Electronics Limited PSDS User Manual 74 Custom custom unit 1 custom1 custom unit 2 custom2 custom unit 3 custom3 custom unit 4 custom4 Undefined ...

Page 76: ...oduct Range is in conformity with the following relevant Union harmonisation legislation EMC Directive 2014 30 EU RoHS Directive 2011 65 EU LVD Directive 2014 35 EU Based on the following harmonised standards BS EN IEC 61326 1 2021 BS EN IEC 61326 2 3 2021 BS EN 61010 1 2010 A1 2019 IEC 61010 1 2010 Name and position of person binding the manufacturer or authorised representative Signed Name Rober...

Page 77: ... 3032 The Restriction of the Use of Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 We hereby declare that the product described above to which this declaration of conformity refers to is in conformity with the essential requirements of the following standards BS EN IEC 61326 1 2021 BS EN IEC 61326 2 3 2021 BS EN 61010 1 2010 A1 2019 IEC 61010 1 2010 Additional Informa...

Page 78: ...ate if it is a warranty repair The sender is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit Mantracourt 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 Mant...

Page 79: ...r Manual Applies To PSDS Portable Sensor Display Part Number 517 951 Issue Number 01 00 Dated 13th June 2022 In the interests of continued product development Mantracourt Electronics Limited reserves the right to alter product specifications without prior notice www mantracourt com ...

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