User Manual
Contents
1. Low true Band RMS Filter detector Medium true Band RMS Filter detector High true Band RMS _ Filter detector Figure 2 1 CCM Block Diagram MPB 2 PRINCIPLE OF OPERATION 2 2 Measures The CCM has a digital nature but it can measure the true RMS Root Mean Square value for all analog signals from 40Hz The RMS value of a waveform signal is equal to a DC current witch provides the same power to the load The signal is measured by the TIP and pass through the most suitable filter Low Medium and High then arrives at the true RMS detector who gets the value The equation is the following En vera Erms T A The actual regulations defines the minimum requirements for the safety of workers and general public in areas of risk and the limit values for exposure to current contact 2 3 Contact Current The current contact happens when a electrical conductor touches another metallic object immersed in an electromagnetic field and is expressed in Amperes The moment after the contact can cause a discharge of currents associated First attachment of 2013 35 EU In the workplace as indeed in the world we live in the electric and magnetic fields are always present and may have natural or artificial origin The natural electric fields are for example those produced by the accumulation of electric charges during lightning while the natural magnetic fields are those that are found in nature such a2. 5 Search MPB CCM E P Organize Share with Burn New folder Eas e Name Computer amp Local Disk C gt MPB CCM Ex HP TOOLS F 5 DATLCSV Figure 4 2 Access Data 4 2 Data Format From time to time you make the measures the device appends into DATA csv file generated with all information about a measure Going into more detail the data recorded are so ordered Date amp Time Measure Total value expressed in Value in mA from Low Filter Value in mA from High Filter Circuit modality HAND or GP To correctly display the date and time format to enter is hh mm ss To correctly display of the acquired values the decimal separator is the point and the digit grouping symbol is a comma 22 User Manual CCM MPB A DATA DOWNLOAD In case of visualization problem change the Region and Interna tional settings in the control panel This file opened with MS Excel will appear as in Figure 4 3 MPB CCM FW 1 03 date time GG MM AAAA hh mm ss 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 Workers 0 1 0 3 3 1 0 4 9 1 0 4 4 0 9 5 0 1 0 G Public LF mA 0 5 0 010 1 6 0 033 0 5 0 010 2 4 0 049 0 5 0 010 2 2 0 044 0 4 0 009 2 5 0 050 0 5 0 010 Figure 4 3 Data dump HF mA 0 07 0 07 0 07 0 07 0 07 0 07 0
3. Figure 3 12 Contrast Figure 3 13 Clear Data 20 User Manual CCM Chapter 4 Data Download 4 1 Connect to PC The downloading operation of the data has been designed aiming to the speed and simplicity of use The data generated by the CCM are saved in csv comma separated value or a text file with separators value This allows you to read edit and process the data downloaded via various software including MS Excel When you connect your device it must be turned on At the first connection via the USB MicroUSB cable supplied with the instrument the CCM will be seen by the PC as a mass storage device Figure 4 1 For this reason there is no need for special drivers because drivers will be self installed by Windows OS and data will be ready for use Installing device driver software gt Click here for status E 10 54 EF do 25 03 2015 Your device is ready to use Device driver software installed successfully ado 10 55 25 03 2015 Figure 4 1 Installing If your PC has autoplay enabled the next window that appears will be the one to go to the new device Figure 4 2 otherwise it can be accessed by opening My Computer and selecting the device marked MPB CCM 21 MPB 4 DATA DOWNLOAD MPB CCM E General options LN E j J D Open folder to view files Y Use this drive for backup using Windows Backup Wew more AutoPlay options in Control Panel gt MPB CC
4. 1 1 Introduction CCM was designed to measure the contact current that may be generated when you touch electrical electronic equipment which stays inside an radio frequency field in a quickly and accurately way 1 2 Descrizione CCM Figure 1 1 is a portable measuring device with more than one measure mode Depending on yours need it can measure by means of the GROUND PLANE which is a standard impedance level or it can works without cable exploiting the users impedance level through the conductive area on the handle In the next chapters we will see more deeply this subject 1 3 Composition The device come with its special suitcase containing the GP Ground Plane a ground wire and a standard resistance 1 4 Optional Kit CCM Kit of calibration made of e CCM JIG e standard resistance R45 e RG316 cable 1 mt length N M sma M 2 User Manual CCM MPB 1 GENERAL INFORMATION 1 5 Front In Figure 1 2 is showed the CCM front panel On Of switch Micro USB connector SC Le Keyboard Figure 1 2 CCM front User Manual CCM 3 MPB 1 GENERAL INFORMATION 1 6 Rear In Figure 1 3 is showed the UCM rear panel Measure Tip Measure trigger Ground connector Figure 1 3 CCM rear 4 User Manual CCM MPB 1 GENERAL INFORMATION 1 7 Technical Specifications Frequency Range Low band 40 Hz to 2 5 kHz Medium band 2 5 kHz to 100 kHz High band 100 kHz to 110 MHz
5. User Manual CCM MPB 3 USAGE OF CCM act Current Meter O RA VO u E gt i r E EN re N GATE wr LV UIIG Ti WIGLE HF 5 67 mA HEHU EUXT Figure 3 5 BW T mode which points that the device is preparing itself to make measures If the test on the actual switching of the relay has been successful the message READY is shown otherwise it will shows ERROR xx where xx is the error code The operator before pressing again the trigger will have to await the appearance of READY on the screen Figure 3 6 From this moment the device is ready to perform the test in real time ee eS titane ESS n um EN rre ex rreg 21 act Current Mete ct Current Met MENU BT Figure 3 6 Ready for measuring User Manual CCM 15 4 y MPB 3 USAGE OF CCM Before carrying out the measurement follow the instructions below e Bring the status of the instrument from STANDBY to READY pressing the trigger Only after viewing the status of READY without pressing the trigger again touch the equipment under test with the tip and only after establishing contact press the trigger to start the measurement You can perform single or consequential measurements e With each new measurement the operator will be warned by an acoustic signal if enabled and simultaneously by a greater display illumination All measures are automatically stored automatically by the CCM e In both modes the measuring tip of the CCM must never
6. 10 User Manual CCM Chapter 3 Usage of CCM 3 1 Switch On Release n Figure 3 1 turned on CCM When the CCM is turned on it shows the company logo and the firmware version Figure 3 1 After a few seconds a warning message will appear as in Figure 3 2 and users declare to have read this manual and be aware of the risks involved during the current measurement In case of negative answer by pressing DENY the device will automatically turn off 11 4 y MPB 3 USAGE OF CCM Figure 3 2 menu of CCM Once you accept the terms of use the device will remain in the state of STANDBY until the operator presses the Trigger to make a measurement 3 2 Standby Screen In Figure 3 3 is showed the standby screen Focusing the high part of display e Battery indicator e The Measure Modality points witch kind of circuit is selected and we ll see deeply in next chapter there are two different Modality HAND for measures that use the body resistance of the operator as a reference GP or GROUND PLANE for measures relating to the metal plate sup plied with an standardized impedance reference e The State indicates to the user if the device is ready to make a measurement or not 3 3 Hand or GP In the main screen the right key marked with GP or HAND allows to choose which circuit used for the measurement that follows Figure 3 4 It s a good 12 User Manual CCM 4t MPB 3 USAGE OF CCM
7. 07 0 07 0 07 Input from hand hand hand hand hand hand hand hand hand User Manual CCM 23 MPB A DATA DOWNLOAD 24 User Manual CCM List of Figures Li Colas eR SEERA DEERE EEE BOE ES 1 l2 CCM DOTE lt lt ias he aa he wwe he wwe he we ka 3 do COUNT nt ke eee HEE HERE KREG 4 2 1 CCM Block Diagram Eee be Sew ee Se rs a 7 3 1 turned on CCM 4 4 4 11 3 2 menu of CCM 44 2 12 A AAA A AA A A 13 Oe HOOP en AAA 14 So BYE EEE EEE RER 15 3 6 Ready for measuring e an a ne eee a ee 15 Oot JIG a ee ne eh 16 3 8 Beep on press 17 39 Alarm eeso nennir randt eu eu ae 18 O E 18 311 Dale amp Time cs ducado sa Bun na hu go hu ee 19 nl COMTAS so e soare bee ew bbe wee bee ew be eS Bes 20 Dol Cea Dalas es esera ew ER RE Wwe eS 20 dl AMM eR PR ee a A 21 4 2 Access Data 0 4 4e 22 M gs ce we a ee eG AAA 23 29
8. European Standards Safety CEI EN 61010 1 2001 EMC EN 61326 1 2007 This product complies with the requirements of the Low Voltage Directive 2006 95 CE and with the EMC Directive 2004 108 CE User Manual CCM III MPB IV User Manual CCM Contents 1 General Information 1 LA nirodu uction lt sa i oe Bab bw se as se 2 1 2 Descrizione ociosos 4 we wwe au 2 Lo COMP ol a a Ge eG ER REE RRR EER REG RG 2 LE IIA iis ok Rew oe eRe eRe Re oR oe ES 2 o AE 3 LORS aeaenaa 4 1 7 Technical Specifications bk ewe eK ERR RK RR 5 2 Principle of operation 7 oe DOC ONA ee hee ee He HEH sos 7 2 2 Measures 8 23 Contact CIT E s s e a ae sae ee Bae ee Be ee Bae oe 8 3 Usage of CCM 11 al wich Un se amp 4 ce Ho o oo BS do Bo oe we wo ew ad 11 oe PIANO OOOO sama hGH BRE RR A BG 12 de BE cacas we ee A A Dee he 12 3 4 BANDVWIDIT TOTAL so SA rra 14 Pie 3 1 u er a u A 14 3 6 Menu of COM en 16 A o lo AIRE 16 3 6 2 Beep on press 17 30 3 AE en de da ee 17 wA IO dw ne A a AAA AAA 17 o esorare dedito HE Haan 19 SOO LONI a GE Pa EEE Sa VERF Va 19 30 7 ler Deals oo zer ua wer u eh En ehe 19 4 Data Download 21 4 1 Connect to PC 21 4 2 Data Format es ss ee nee ae Hee ED AE 22 t MPB CONTENTS Figures List 25 VI User Manual CCM Chapter 1 General Information Figure 1 1 CCM 1 MPB 1 GENERAL INFORMATION
9. State Measure Modality Battery level Figure 3 3 First Run practice measure with the Ground Plane before doing the HAND measures in extreme cases a high current may drain simply on the ground In the Hand measurement the CCM will take account of the real value of the impedance of the human body User Manual CCM 13 4 y MPB 3 USAGE OF CCM Figure 3 4 Hand or GP 3 4 BANDWIDTH TOTAL Central key marked with BW T allows to choose the visualization mode BANDWIDTH Display of measurement divided by bands or selective with the end result in mA TOTAL Overall view of the value measured in percentage compared to the ICNIRP limit This appear as in Figure 3 5 The Low band Filter starts at 40 Hz to 2 5 kHz IC bound 1 mA and the High band Filter start at 0 1 MHz to 110 MHz IC bound 40 mA The value of the contact current in the range of frequencies ranging from 2 5 kHz to 100 kHz is determined for the difference between the total value and the respective values of the LF and HF bands for this reason it is suggested to perform the measurement while displaying Total and then check in BW at what frequency range there was any limit to be exceeded 3 5 First Run At power on or if it s been more than a minute since the last measurement the CCM is in STANBY mode By pressing the trigger the device performs a test to verify the effectiveness of the selected relay switching and active the WAIT 14
10. be detached from the equipment under test 3 6 Menu of CCM The next part of the manual shows sequentially the possible configurations of the device 3 6 1 Regulation limit From the standby screen by pressing the MENU key you will reach the screen showed in Figure 3 7 Figure 3 7 Limit 16 User Manual CCM MPB 3 USAGE OF CCM This screen is intended as a reminder for the user since it expresses the limit values for which the CCM is designed 3 6 2 Beep on press The second page of the menu allows you to enable or disable the beep every time you press a key To change this setting to access the page with the key SET as in Figure 3 8 Figure 3 8 Beep on press 3 6 3 Alarm Continuing in the menu always using the NEXT key the third page is displayed on the alarm In this case when pressing the SET key as showed in Figure 3 9 By default the alarm is disabled when pressing the UP key value is incremented by 5 until it reaches the maximum warning threshold of 300 that the percentage value is parametric with respect to the frequency of the input signal based on the graph shown on the first page of the menu Chap ter 3 6 1 3 6 4 Auto OFF This settings determines how long the device must idle before shutdown This is the fourth page of the menu and in Figure 3 10 you can see how on this page the left and center change their behavior User Manual CCM 17 MPB 3 USA
11. Frequency Response Low band lt 1 dB Medium band lt 1 5 dB High band lt 1 2 dB Low Band Level range Damage level 100 mA Resolution 1 nA Dynamic range 500Hz 50 dB Linearity error 500Hz 0 3 3 mA lt 1 dB Medium band Level range 0 to 300 ICNIRP limit 1 to 40 mA Damage level 500 Resolution 1nA Dynamic range 10kHz 50 dB Linearity error 10Hz 10 200 lt 1 dB High band Level range Measurement range 0 4 to 120 mA ICNIRP limit 40 mA Damage level 300 mA Resolution 10 nA Dynamic range 10MHz 50 dB Linearity error 10Mz 12 120 mA lt 1 dB Measurement mode Hand and Ground Alarm sound Programmable level Display Graphic LCD with led backlight Detectors true RMS Contact tip Interchangeable USB Interface Micro USB connector Standards Directive 2004 40 EC Operating Temperature 10 C to 40 C Battery Power supply 2pcs AA Alkaline Operation Time 24 hours Dimension 205 x 90 x 45 mm Weight 200 g Recommended calibration interval 24 months Input signal attenuation over 110 MHz 200 MHz gt 7 dB 300 MHz gt 18 dB 400 MHz gt 31 dB 0 01 to 3 mA ICNIRP limit 1 mA 500 MHz 3 GHz gt gt 45 dB User Manual CCM 5 MPB 1 GENERAL INFORMATION 6 User Manual CCM Chapter 2 Principle of operation 2 1 Logic Schema The schema showed in Figure 2 1 describe CCM work flow
12. GE OF CCM u _ ze Current Me j A s s fa rre Y n 0 kur ent Witt UP DOWN SET Figure 3 9 Alarm a nu mn 7 Current Me Figure 3 10 Auto Off The possible values for this setting range starts with 10 minutes and come to a maximum of 60 minutes with a 10 minutes span You cannot disable this option for energy savings 18 User Manual CCM MPB 3 USAGE OF CCM 3 6 5 Date amp Time The fifth menu item allows you to change the date and time of the device Fig ure 3 11 It is important that this information is correct because as the results of measurement in the downloaded data csv file generated by the device are associated with the day and time of measures Figure 3 11 Date amp Time The changes of the fields are carried out using the buttons UP and DOWN and will follow the sequential order of the day month year hours minutes and seconds 3 6 6 Contrast The sixth page of the menu Figure 3 12 allows you to change the contrast of the LUD using the same keys UP and DOWN By default this is set to an intermediate value 3 6 7 Clear Data In this menu the operator has the ability to delete all the data stored in the internal memory In the event that have remained of the measures from the last work session is possible to free the memory without the aid of a PC The Figure 3 13 shows how to achieve this functionality User Manual CCM 19 Ny MPB 3 USAGE OF CCM
13. MPB S r l Tel 39 0641200744 M P B Via Giacomo Peroni 400 402 Fax 39 0641200653 00131 ROMA RM info gruppompb com www gruppompb com User Manual CCM Contact Current Meter Updated to Firmware Version CCM V1 03 MPB SAFETY NOTES Read carefully before using the product MPB works to provide to its customers the best safety conditions available com plying with the current safety standards The instrumentation described in this manual has been produced tested and left the factory in conditions that fully comply the European standards To maintain it in safe conditions and ensure the correct use these general instructions must be fully understood and applied before using the product This product is designed for industrial environment and laboratories and should be used by skilled staff only MPB disclaims responsibility for a different use of the device Use the device only after checking the presence and validity of the safety devices as breakers differential switches and the validity of grounding For safety reason the HAND measure modality has to be done only after the GROUND PLANE modality which marks a value below regulations limits defined by the 2013 35 EU regulation II User Manual CCM MPB Declaration of Conformity in accordance with the Directives EMC 89 336 EEC and Low Voltage 73 23 EEC This is to certify that the product CCM Contact Current Meter complies with the following
14. s the terrestrial that orients the compass needle North South The electric and magnetic fields are produced by artificial devices and systems such as electrical equipment or systems for the distribution of electricity The electromagnetic field is defined as a physical phenomenon given by the simultaneous existence of an electric field and a magnetic field Moving away from the source of the electromagnetic field waves decrease in intensity it is therefore clear that the intensity is maximum if it comes in contact with the object or with the system which is generating the electromagnetic field A device with metallic shell if immersed in an electromagnetic field can become a carrier of RF voltage and electrical charge If you come into contact with the said device without adequate protection you risk that the RF voltage discharge to ground flowing through the limbs and body In this case the electrical charges present on the device immersed in the electric field through the operator s body have generated a contact current An electrical equipment not properly shielded can emit electromagnetic waves If it comes into contact with the above machinery without adequate protection even in this case there is a risk that electromagnetic 8 User Manual CCM MPB 2 PRINCIPLE OF OPERATION waves flowing through the limbs and the operator s body to generate a contact current User Manual CCM 9 MPB 2 PRINCIPLE OF OPERATION
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