User Manual DK Meter - Broadcast Architech
Contents
1. DK Technologies DK Meter DK Technologies A S Marielundvej 37D DK 2730 Herlev Denmark t 45 44 85 02 55 f 45 44 85 02 50 email info dk technologies com web www dk technologies com ater User Manual DK Technologies Contents 1 Important notes 1 141 Disclaimer 1 2 Purpose 1 3 After sales modifications 1 4 Versions 2 Installing 2 1 Unpacking 2 2 Mounting 2 3 DC power 24 Controls 2 5 Shorthand 3 Essential setup 3 1 Delivery defaults 3 2 Signal connections 4 Default screen 4 1 Phase meter 4 2 Amplitude meter 43 Integrated loudness bar 44 Graphical loudness 4 5 Window text 5 Meter modes 6 Display options 6 1 Delivery presets OL O000 221 3 OODCGC PEPE PL L LELE 6 2 Basic variations 10 6 3 Changing amplitude scales 10 6 4 Changing analogue references 11 6 5 Selected inputs 11 6 6 Preset names 12 6 7 Signal names 12 6 8 Graphical display 12 6 9 Text colour 13 7 Loudness measurements 14 7 1 o Loudness background 14 7 2 Terminology 14 7 3 Loudness presets 15 7 4 Loudness setup 15 7 5 Loudness option 17 8 DK utility program 18 8 1 USB connection to PC 18 8 2 Software updates 19 8 3 Software activation 20 9 Product support 21 When using the electronic PDF version of this manual clicking on a topic in the contents list will take you to that page To return to this contents page click the DK logo in the top right corner of any page 1 Important notes D 1 1 Disclaimer No part of2. It is defined as the difference between the estimates of the 10th and the 95th percentiles of the distribution of the S values across the entire programme Excluding values above the 95 percent level prevents content such as a single gunshot from disturbing the loudness range value and ignoring those below 10 avoids a low music fade from influencing the figure With these three simultaneous modes the system is intended to address issues of balancing the loudness of short duration material such as commercials and upcoming promotions against longer content such as programmes including films etc It is a difficult challenge to have an automated system achieve the artistic balance that twenty years ago might have been done by a human operator It will be interesting to see how adoption of these recommendations eliminates the viewer complaints of poor loudness matching 7 3 Loudness presets Beneath each preset are six commonly used sets of defaults In addition a USER mode allows custom variations to be created To define the loudness measurement parameters go to MENU MENU MENU PRESET namej LOUDNESS PRESET and select the required set of parameters USER must be selected if custom settings are to be created and used 7 4 Loudness setup In addition to the defaults offered in the presets slsecting USER as the loudnjess preset allows custom variations to be created Beneath each preset are six commonly used sets of defaults In a
3. Technologies A S Page 13 DK Meter T Loudness measurements D 7 1 Loudness background Loudness measurements differ from conventional signal amplitude measurements in that they are also influenced by the frequency content of the signal and the duration of transient components The way these various elements are handled to give a value for display has been defined by the International Telecommu nications Union in their standard ITU BS1770 which is the only loudness standard to have achieve any degree of international acceptance The DK Meter allows a number of parameters to be adjusted to suit whatever options your organisation and perhaps regulatory body has decided to mandate Two organisations leading the way in the standardisation of loudness measurements are the Advanced Television Systems Committee ATSC in the USA and the European Broadcasting Union EBU in Europe The background information to the measurement norms is contained in the ATSC document Techniques for establishing and maintaining audio loudness for digital television document A 85 2011 The EBU document R128 is supplemented by EBU Tech 3341 3342 3343 and 3344 between them they define a number of terms and set out the reasons behind many of the objectives of loudness measurements SURROUND SURROUND LEFT RIGHT CENTRE LEFT RIGHT 7 2 Terminology The documents define a number of terms loudness unit LU loudness unit referenced to full scale LUFS program
4. on The Windows PC will Hardware Wizard normally detect the con nection of the DK 3 This wizard helps you install software for meter and provide a dialogue box as DK Technologies generic USB to serial port shown If your hardware came with an installation CD lt gt or floppy disk insert it now 2 Do not have the PC attempt any automatic software location option but click the option that you have a disk and then browse to the location of the file DKT_COM_XP INF for Windows XP systems or DKT COM VISTA INF for Vista and Windows 7 systems Bock Pr re What do you want the wizard to do Install the software automatically Recommended O Install from a list or specific location Advanced Click Next to continue 3 The security system of the Windows install process may query if you are sure you wish to install this driver or to stop Continue with the installation and when it is completed the PC will be able to communicate with the meter Found New Hardware Wizard Please wait while the wizard searches Se SY DK Technologies generic USB to serial port DK Technologies A S Page 18 DK Meter 8 2 Software updates D Software updates will be supplied with the installation utility dkMeterUpdate exe 1 Once the driver is installed as described in the previous section and with the DK Meter connected run the DK program dkMeterUpdate exe 2 If the USB driver for the DK me
5. the right Preset names are limited to being ten characters long To save the revised preset name use the MOVE A button until the first character is reached then press it once more 6 7 Signal names The signals displayed on the meter screen are normally satisfactory when left in the factory default conditions These include commonly needed labels such as L R LFE RS etc If it is necessary names can be edited Go to MENU MENU MENU SETUP AUDIO GLOBAL LABELS SIGNAL Go to the signal to be renamed and use a similar method to that for renaming presets This can be convenient if a different language is preferred 6 8 Graphical display 2 0LU The same information used to drive the loudness bargraph is also used i SLIDING 4 1 LU to draw a graph of loudness versus time The graph period can run LOUDNESS 14 LRA indefinitely but only the first three and half minutes is visible The MENUD km lk iki button can scroll the screen as required i Press START to begin plotting the loudness The graph develops as shown START Oo ME gt DK Technologies A S Page 12 DK Meter 6 9 Text colour The default colour for the text information shown at the top of the main screen is green Where viewing conditions suggest an alternative may be preferable it can be changed by going to MENU MENU MENU SETUP AUDIO GLOBAL COLOUR The choices are BLUE GREEN L IGHT BLUE RED VIOLET YELLOW WHITE SELECT DK
6. this document may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and scanning for any purpose without the prior written consent of DK Technologies A S The company aims to ensure that all details in this document are correct at the time of publication but reserves the right to alter specifications and equipment without notice The latest version will be available upon request This publication is for international usage Despite considerable effort to produce up to date information no literature published by the company nor any other material that may be provided should be regarded as an infallible guide to the specifications available nor does it constitute an offer for sale of any particular product StarFish and JellyFish are registered trademarks of DK Technologies A S Dolby E is a registered trade mark of Dolby Laboratories Inc The ownership of any trademarks referenced is acknowledged 2011 DK Technologies A S E amp OE All Rights Reserved 1 2 Purpose Any fitness for purpose legislation or other determination that may be applied in the area where this equipment is installed must take due cognisance that it is designed for use in professional broadcast audio and video systems by appropriately trained personnel The equipment is not intended for use in a domestic environment and regulations designed for such situations are not applicable 1 3 After sales modifications A
7. EAK MENU MENU MENU SETUP PRESET name BARGRAPH OPTION SCALE The scale currently assigned to that preset is highlighted and the MOVE Y and MOVE A buttons allow a different one to be selected The change is made by clicking SELECT on the required one Oo a Oo Oo Oo oO oO Oo oO Oo Oo Oo Oo 0 o If no other changes are needed to that preset going to EXIT allows the meter to return to the audio level display screen DK Technologies A S Page 10 DK Meter 6 4 Changing analogue references The digital scales such as DMU1630 have absolute value Scales designed first for analogue measurements such as IEC268 SMPTE VU etc can have alternative analogue calibration values The meter sensitivity is set for all meter scales and presets by going to MENU MENU MENU SETUP AUDIO GLOBAL ANALOGUE REFERENCES Once the cursor is on the line showing the current value press SELECT Use the MOVEY and MOVE A button change the setting equivalent to O dBFS in 1dB increments between 12 dBu and 24 dBu Three particular levels 15 dBu 18 dBu and 24 dBu have additional labelling identifying markets where those values are commonly used It should be noted that the 24 dBu level represents 20 dB above the level of 4 dBu sometimes adopted in those markets as the level to make a conventional analogue VU meter display 0 VU In other words it equates to what is often referred to as the 20 dBFS calibration settin
8. SWA it is also installed using the installation utility dkMeterUpdate exe Follow steps 1 to 3 as described above as though installing new software The driver must be installed as described previously but instead of entering a file name to be installed enter the text SW RRKK_KKKK KKK kkk The are replaced by the sixteen digits of the new SWA key No space characters should be entered only hypens between each block of four Click on NEXT to install the new activation key If the meter does not automatically re boot switch it off and back on again to ensure the new SWA is in operation The installed key can be verified by going to MENU MENU MENU SETUP ABOUT SYSTEM SOFTWARE ACTIVATION KEY DK Technologies A S Page 20 DK Meter 9 Product support D If any aspect of your product gives cause for concern or you wish to enquire about options and upgrades the normal point of contact is the dealer who supplied the unit In case of difficulty locating them DK Technologies will be pleased to assist as fully as possible No unit should ever be returned to DK Technolo gies without prior agreement that this is the right procedure and a Return Authorisation Number must be obtained from DK and shown on the package and accompanying paperwork DK Technologies A S Page 21 DK Meter DK Technologies A S DK Technologies A S Marielundvej 37D DK 2730 Herlev Denmark t 45 44 85 02 55 f 45 44 85 02 50 email info dk techn
9. The DK2 version can be changed to a 5 1 surround mode which gives a display such as the one here A detailed overview of loudness parameters follows later and the matter most often needing changing to suit local conditions in the meter scale on the amplitude meters It is important to remember that there is only one loudness bargraph shown here reading 15 1 LUFS The ITU BS 1770 measurement method takes account of the content on the left centre right and surround programme legs Material on the LFE is not used in the ITU BS 1770 loudness measurement algorithm The other bargraphs are conventional amplitude bargraphs and different organisations may require these to be true peak quasi peak or average reading meters to give similar readings to those on other conventional programme meters in the same system Whatever parameters are changed are automatically saved as new power on defaults CLEAR MENU gt 6 3 Changing amplitude scales A variety of different meter scales are offered and the one selected is stored as part of each preset To change the selected scale go to MENU MENU MENU SETUP IEC 268 Use the MOVEY button to get to the presently selected preset SELECT IEC EE the preset opening the folder then use the MOVEVY button to go to the BARGRAPH OPTION folder then go down to the SCALE folder The full process S ULTRA YU RMS LEG RMS LEG DMU 1630 DMU 1630 DORROUGH DORROUGH ATS100 YU WEB P
10. d 15 USB OV 1 Analogue Ground P USB 5V 9 USB Data 2 USB Data 10 USB Screen Shell DK Technologies A S Page 6 DK Meter 4 Default screen D As delivered from the factory the power up default is a stereo meter with digital inputs The screen display is shown here CLEAR gt 4 1 Phase meter The left most part of the display is a phase bargraph with purple graticule lines This displays information on the main left right inputs with the factory supplied default for this being the first AES input Audio meters are rarely used to display pure sine waves and the term in phase is applied here meaning a signal where the mono sum is egual to or greater than the higher of the left and right signals Out of phase is a signal where the mono sum would be less than the higher of the left and right signals Signals which are predominantly in phase have a green marker in the upper half of the range Fully correlated signals such as double mono read on the 1 mark Signals which are out of phase are shown with a red marker in the lower half of the range With no input with only the left or right driven or with correlated mono but with a 90 phase shift the marker position is the halfway point with the upper section of the marker green and the lower part red 4 2 Amplitude meter The parallel bars with white and red graticule lines provide a conventional amplitude meter which can be VU peak PPM or some oth
11. ddition a USER mode allows custom variations to be created To define the loudness measurement parameters go to SELECT MENU MENU MENU PRESET namej LOUDNESS SETUP The variable parameters have options as follows DK Technologies A S Page 15 DK Meter FILTER Can be K FILTER or LEQM SCALE MODE Two different scales have been adopted for displaying the loudness value One of these is defined by the ITU in their document ITU BS1771 and that uses Loudness Units LU These have values ranging from 18 to 9 with the typical aiming point for signals being a specification close to the 0 point The other commonly used scale has only negative values going down from a 0 LUFS mark at the very top of the scale FILTER K FILTER SCALE MODE LU ee SLIDING WINDOW 3 The required scale can be chosen by highlighting the parameter and REFERENCE 23 0 dBFS using the MOVE and MOVEA buttons followed by SELECT B R R GATE LEVEL FLOATING PEAK MODE TRUE PEAK SLIDING WINDOW REFERENCE 1000 Hz CAPTURE AUTO RESUME The currently displayed loudness value is based on the averaged LOUDNESS OPTION loudness values over a defined time window Setting the window to 0 UNDER COLOUR 2 0 gt P BARGRAPH EXT SLIDING provides a display of value that are as instantaneous as the system NINDOW TEXT permits The window can be adjusted to be 0 3 10 or 30 seconds REFERENCE Arange of REFERENCE levels can be chosen for the purpos
12. e are three modes RESTRICTED NORMAL ADMINISTRAT SUPERVISOR Upon initial power up the meter defaults to be in Administrator mode When set to Administrator or Supervisor a full range of options are available to the user More restricted user options are provided under Normal and Restricted but any user has the ability to change the security level at any time to gain access to more advanced options All meter settings including the presets are retained at switch off and become the new power up defaults The descriptions that follow all assume use of the default Administrator mode 6 Display options 6 1 Delivery presets The DK2 Meter comes delivered with the factory switch on defaults as described previously Alternative configurations are stored as 11 separate presets Most common needs can be met by selecting one or other of the factory supplied presets This list provides ri A epi LU D 1 2 0 ANALOG e TE 2 2 0 DIGITAL eae arti 3 20LUD e 4 20FSD e 5 2 0 1LUD 6 2 0 1FSD 7 54 DIGITL 8 51LUD 9 514FSD 10 5 1 1LUD AREE The DK1 meter has only the first six presets DK Technologies A S Page 9 DK Meter To change to a different preset go to D MENU MENU MENU PRESET The cursor will highlight the presently selected preset Use the MOVEY and MOVE A buttons to get to the required mode Then press SELECT The meter reverts immediately to the audio display screen with the new preset enabled 6 2 Basic variations
13. e of loudness measurement as part of the loudness measurement standard which your organisation or client has adopted It can be set between 9 and 24 dBFS 1 dB steps PEAK LEVEL The PEAK level is a user defined reference point and can be set between 1 to 10 dBFS 1 dB steps GATE LEVEL a It is often the high level parts of a programme which are often of most interest for assessing compliance with broadcast criteria To prevent an extended length of low level programme content reducing the averaged loudness value to a degree that affects the measured value the meter has an optional gating function Once the signal drops below the gate threshold the meter will continue to hold display and use for averaging purposes the previous value that was above the threshold The gate threshold can be adjusted from 8 to 20 dB in 1 dB steps Setting it to 20 causes the gate to remain open and the unit displays the actual loudness for the vast majority of the time GATE LEVEL b The gate level can be an absolute value or a floating one Absolute values offer a degree of simplicity but at the risk of a high setting causing gating out quieter sections which might sometime comprise a significant part of material such as a feature film soundtrack Adopting a low absolute value can cause background noise that is at a relatively high level for example a documentary by a waterfall not to be gated out even though it is not a significant contr
14. e of which contain further sub folders Getting to a particular setup option might require steps such as Touching the right most button which on power up is labelled MENU Touching the MENUP button again Touching the MENUP button again Select SETUP on the middle button Scroll to the ABOUT folder using the middle button now labelled MOVE W This particular step requires two presses of the middle button Touching SELECT to open the ABOUT folder Touching the MOVE to go to SYSTEM Opening this folder by pressing SELECT Opening the SOFTWARE folder by going down to it with several touches on the MOVE Y button then pressing select This documentation describes such a sequence by using the shorthand MENU MENU MENU SETUP ABOUT SYSTEM SOFTWARE This example allows the currently installed software version to be verified To return to an audio display mode from this use the MOVE 4 to go to the EXIT function then press SELECT DK Technologies A S Page 5 DK Meter 3 Essential setup D 3 1 Delivery defaults Loudness and amplitude measurements can be made to specifications which include a number of optional parameters As shipped the main meter defaults are Preset 2 0 DIGITL Peak meter scale WEBP FS Input 18dBu Filter K filter enabled Set under SYSTEM MENU PRESET Set under BARGRAPH OPTION SCALE Set under AUDIO GLOBALS Set under LOUDNESS SETUP Sliding window 3 seconds Set under LOUDNESS SETUP Loudn
15. er standard This factory defaults to being a true peak meter with a dBFS scale but a variety of commonly used meter standards can also be selected These include IEC 268 1 IEC 268 11 BBC IEC 268 11 EBU DIN SMPTE VU ABC VU NBC VU CNN VU WEB PEAK The two additional indications on the screen provide a short term peak hold function DK Technologies A S Page 7 DK Meter 4 3 Integrated loudness bar The single bar at the left of the right most graticule lines shows the integrated loudness value This same value is also shown numerically at the top of the display in the factory delivery setting of the window text area 4 4 Graphical loudness To the right of the integrated loudness bar is a graph of integrated loudness values plotted against time Approximately the first minute can be seen from the opening display but the MENUP button allows over three minutes of display to be viewed 4 55 Window text There are four lines of window text with the uppermost having a larger size Each of the four lines can be chosen to display one of the following values OFF LOUDNESS SELECT MOMMTRY SLIDING INTEGRT LOUDNESS LRA RECLAIM FACTOR SLIDING MIN SLIDING MAX GATE HOLD PEAK LEVEL MAX SMPTE TIME START TIME STOP TIME RESUME TIME SLIDING TIME FILTER TYPE PRESET AUDIO DK Technologies A S Page 8 DK Meter 5 Meter modes a gt The following changes to the meter configuration are available with MENU MENU MENU SETUP ABOUT USER MODE Ther
16. ess ref 23 0 dBFS Set under LOUDNESS SETUP Peak level 2 0 dBFS Set under LOUDNESS SETUP Gate level 10 0 dBFS Set under LOUDNESS SETUP Gate level Floating Set under LOUDNESS SETUP Peak mode True peak Set under LOUDNESS SETUP Reference 1 KHZ Set under LOUDNESS SETUP If these settings are correct for your needs there is nothing further to do but to connect the audio inputs and begin using the meter The various option changes are described in later sections of this manual 3 2 Signal connections The supplied cable harness has three BNC connectors These allow three AES 3id digital audio signals to be connected to the 75 ohm inputs Because each AES input is a dual channel path up to six digital mono signals can be brought into the meter These can be either 16 or 24 bits in depth and the intended sample rate is 48K An internal matrix allows the required signals to be routed to the measurement and display system SPDIF signals can also be connected and are accepted The meter also has two balanced analogue inputs and if required a suitable cable connector needs to be wired in accordance with the information below The view below shows the wiring side of the cable mounted male connector Pins 5 and 13 are used for factory diagnostics and must be left unwired Signal Pin Signal Pin AES 1 Signal 3 z 1 AnalogueL Hot 6 AES 2 Signal 4 AnalogueL Cold 14 AES 3 Signal 12 AnalogueR Hot 8 AES Ground 14 LU Analogue R Col
17. g frequently used in the USA and elsewhere When the required value is set press SELECT to confirm it 6 5 Selected inputs The DK Meter has both analogue and AES3 digital inputs With DK1 meters only the analogue inputs and first AES input is available The input which feeds the meter system is stored as part of each preset This selection is done with an internal routing matrix To change input routing go to MENU MENU MENU SETUP PRESET namej MATRIX OUTPUT METER DK METER Enabling meter channels currently set to OFF will cause additional bargraphs to be displayed on the screen up to the maximum of six i e a 5 1 display Once a matrix configuration has been changed the meter should be re started to ensure the new routing is enabled SELECT DK Technologies A S Page 11 DK Meter 6 6 Preset names D When significant changes have been made to a preset it can be helpful to give the preset a name to identify it s function Go to MENU MENU MENU SETUP AUDIO GLOBAL LABELS PRESET Go to the preset to be renamed and press SELECT The highlighted name then gains a flashing cursor beneath the first letter To change the value press SELECT again The displayed character is then incremented using the MOVEY button The character sequence includes upper and lower case letters numbers and a variety of other symbols Press SELECT to store that character The MOVE Y button steps the cursor one character to
18. ibutor to the perceived loudness Making the gate level relative may then offer results that more closely reflect perceived programme loudness DK Technologies A S Page 16 DK Meter PEAK MODE Selecting DIGITAL based the reading on individual sample values TRUE PEAK measurements take the maximum value of the interpolated wave shape REFERENCE This is the frequency chosen for the calibration alignment and is either 400 or 1000 Hz CAPTURE The graph mode can be initiated automatically when the signal starts The options are MANUAL START AUTO RESUME and AUTO START 7 5 Loudness option This allows the threshold of the colour change in the loudness bar to be set It can be varied between 0 dB and 20 dB DK Technologies A S Page 17 DK Meter 8 DK utility program D 8 1 USB connection to PC Conventional use of the DK Meter connects it to the provided mains power supply via the USB cable The USB connection can be used to install software updates such as updating a DK1 meter the DK2 To do this a DK port driver must be installed on your Windows PC DK programs are designed for PCs operating on Windows XP Vista or Windows 7 Software may be supplied as a ZIP file which should be stored somewhere convenient on your computer and unpacked taking note of the path where files are being place 1 Connect the DK Meter to a PC USB port Found New Hardware Wizard and ensure the meter and PC are Welcome to the Found New switched
19. me loudness r r loudness range The LU is the quantity already set out in the ITU BS 1770 and LUFS is a re naming of the LKFS also described there and commonly used in the USA The EBU s R 128 also states that programme loudness should have a target level of 23 LUFS though it notes that for some programmes such as live events it may be necessary to accept deviations from that by 1 LU PROGRAMME LOUDNESS The Tech3341 and 3342 documents clarify some of the measurement parameters that are needed in order to set a meter to operate in EBU mode Such a meter will have a sliding time window length of 0 4 seconds and that is used to obtain an ungated momentary loudness figure referred to as M In addition a meter in EBU mode will also have a window length of 3 seconds updated at least ten times per second and without gating and this loudness figure is the short term loudness named S DK Technologies A S Page 14 DK Meter Finally there is a third mode that produces an integrated value known as the I value and for this measures loudness over the entire duration of that programme and has a gate which operates at a threshold 8 dB below the current momentary loudness value This is designed to create an indication of foreground loudness ignoring extended quiet periods The loudness range uses gated information to prevent it being unduly influenced by extended periods of little but background noise
20. ny modifications to the equipment not specifically authorised and approved by DK Technologies A S may invalidate the equipment warranty This includes changes to cabling and variations to the recommended installation as detailed in the documentation issued by DK Technologies A S Modifications can invalidate EMC and safety features designed into this equipment and the manufacturer can not be liable for any legal proceedings or problems that may arise relating to such modifications No sales agent or other person involved in the supply chain is permitted to authorise variations from the content of this documentation 1 4 Versions The DK Meter is available in two versions The DK1 is a stereo only unit and the DK2 is suitable for use with stereo and also 5 1 surround signals If used with a DK1 ignore all references in this manual to the surround features This manual is intended for use with units running software version 2011 12 06 or later DK Technologies A S Page 3 DK Meter 2 Installing D 2 1 Unpacking The DK Meter is supplied with the following items DK Meter display control unit with a 15 pin D connector female Interface cable with a male 15 pin D connector and three 1 4 m BNC terminated co axial cables and a USB A connection for data and power c AC mains to USB power adapter This has several interchangeable pin sets to suit most styles of international mains connectors d Adjustable mounting adapter to allow fixing to a va
21. ologies com web www dk technologies com Page 22 23 December 2011
22. riety of surface angles and six fixing screws 2 2 Mounting The meter is supplied with an adjustable mounting bracket The meter has the connector in the lower part of the back panel When fixing the mounting plate to the rear of the meter use only the screws supplied and be sure to fit the two hole bracket not the four hole one to the back of the meter Damage can be caused by allowing longer screws to penetrate the rear panel The supplied screws may also cause damage if used to fit a thinner plate to the back of the meter If fixing through a thin surface use shorter screws which are sufficient only to engage in the case material 2 3 DC power The meter is supplied with a DC power supply with a USB outlet If being used in conjunction with a computer any conventional USB A outlet with the standard USB 5 volt supply may be used instead of the DC power unit 2 4 Controls The DK Meter has a high quality colour display screen At the base are three control buttons which use capacitive touch sensitive technology This means that to operate they must be touched with a finger not a stylus or similar object The function of the buttons changes depending on the menu selected and the label above each describes what they do at any given time The meter is shown here with the power up default as delivered from the factory DK Technologies A S Page 4 DK Meter 2 5 Shorthand D Many setup options are arranged in folders som
23. ter has just been installed it may be necessary to click the REFRESH PORTS button If you are unsure which COM port has been assigned for the connection to the DK meter click FIND INSTRUMENT 3 Once the port is confirmed click lllh DK Technologies Information CON N ECT and information about the Please select a serial port and press CONNECT meter will be displayed Select Serial Port 4 To install new software into the meter MA M Refresh Ports Find Instrument click on the browse button with three dots and locate where the installation file has been stored NEXT and on the following screen select the file to be installed 6 You will be invited to make a backup copy of the software currently in the meter and this is always prudent if you do not already have a copy of the currently installed software 7 When you click on NEXT the software installation begins once any backup that alll was requested has been completed gt DK Technologies 8 The update concludes with a meter reboot and computer screen confirma tion is needed to complete the process Progress dkMeter Factory Update 2011 12 06 Creating a backup D Syne DK Software downloads DK Meter Bria 68 E Overall Progress 45 BENENEEEEEEEEEEEEEEEE DK Technologies A S Page 19 DK Meter 8 3 Software activation D Some feature enhancements are sold by way of new software activation keys If you have bought a new
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