MiniLog Anleitung Titelblatt englisch.cpt
Contents
1. MINILOG 2 Kanal Messdaten teens English Version weilekes elektronik MiniLog 12 04 MiniLog User s Manual Copyright 2004 Weilekes Elektronik GmbH Wanner StraBe 170 45888 Gelsenkirchen Germany Tel 49 0 209 17080 0 Fax 49 0 209 17080 20 Internet www weilekes de Email info weilekes de All Rights reserved This Manual may not be reproduced neither in full nor in part in any way mechanically or electronically without written permission of Weilekes Elektronik GmbH This Manual has been compiled with greatest care however Weilekes Elektronik GmbH can not be held responsible for errors and or omissions contained in this Manual Neither can Weilekes Elektronik GmbH be held responsible for any direct indirect or coincidental direct or subsequent damages arising from errors or omissions contained in this Manual This Manual is subject to alterations and improvements to either Manual or equipment related without prior notice MiniLog 12 04 Contents Contents 1 Introduction Garment 5 2 Rapid 7 3 MiniLog 5 9 31 Signal ain 10 3 2 Sampling Values 10 3 3 Microprocessor 11 3 4 Real Time 11 3 5 Serial Interface 12 3 6 On Off 12. 85 000 Sampling Values Sampling Rate Single Channel 10 days 60 days Recording Capacity Version 512 512 KByte 340 000 Sampling Values Sampling Rate Single Channel 40 days 238 days Dual Channel 20 days 119 days Dimensions approx 11 2 x 7 x 3 3 cm Weight approx 220 g incl Battery MiniLog 12 04 Batterie E Block 6LR61 Typ Alkaline Technical Data MiniLog AC Version 128 and 512 Channel 1 and 2 for AC Measuring Range Channel 1 and 2 AC eff 250 mV 2 5V 25 V Accuracy 95 of value indicated 1 5 1 5 1 5 Basis Devitation 1 0 mV 4 mv 40 mV Operating Temperature 15 C to 60 C Relative Humidity 10 to 18 non condensing Recording Capacity Version 128 128 KByte 85 000 Sampling Values Single Channel 10 days 60 days Recording Capacity Version 512 512 KByte 340 000 Sampling Values Sampling Rate 05s 1s 60s Single Channel 40 days 238 days Dual Channel 20 days 119 days Dimensions approx 11 2 x 7 x 3 3 cm Weight approx 220 g incl Battery Battery E Block 6LR61 Typ Alkaline 36 MiniLog 12 04
3. 10 s 60s Standard recording mode offers optimal parameter for most sampling tasks without necessitating MiniLog operation with a PC During standard recording MiniLog operates with Auto Range selection for optimal adjustment of measuring ranges Both channels are being recorded Starting up Standard Recording Prior to starting up standard recording the sampling rate selector switch has to be brought into appropriate position Inadvertent change of sampling rate during recording has no effect on the originally selected sampling rate To start standard recording MiniLog has to be switched off sampling rate selector switch brought into appropriate position to be followed by depression of recording button with simultaneous switching MiniLog on Slow flashing LED indicates MiniLog s recognition of recording button depressed Releasing recording button starts recording with LED flashing synchronously indicating sampling rate see next page Standard Recording Note Depressing recording button for longer than 5 s after switching MiniLog on LED flashes faster after approx 5s indicates recording taking place as pre programmed recording In order to return to standard recording mode MiniLog has to be switches off and restarted as per above instructions 5 2 LED Flashing Rate After starting up standard recording LED will flash at 0 5 s rate until MiniLog has settled on pre selected sampling rate 0 5 10 s or 60 s U
4. 3 4 MiniLog 12 04 Minilog Structure The Microprocessor The microprocessor is MiniLog s Heart It controls selection of measuring ranges recording as well storage of sampling values recorded Intercommunication between MiniLog and PC via serial interface enables transfer of data from MiniLog to PC and reception of such from PC Recording facility kept dormant by pre programmable alarm mode until pre set date and time occurring Real Time Clock The real time clock provides all sampling values recorded with a date and time stamp and controls the alarm mode The timer recognizes varying month lengths 28 30 and 31 days including leap years The real time clock is operative even during periods of MiniLog being disactivated This ensures correct time date stamping of sampling values recorded Replacement of 9 V power battery requires re adjustment of real time clock of MiniLog by program WinLog The real time clock has an approx accuracy of 1 s day 12 Minilog Structure 3 5 3 6 3 7 3 8 Serial Interface The MiniLog body holds a port for the connection of interface cable supplied together with software WinLog The serial interface allows data transmission to PC and reception from PC of identification codings real time alarm mode settings and controlling special measuring features MiniLog transmits the sampling values recorded continuously during the entire recording process via serial interface
5. Program LogPlot assisted the PC displays those values graphically On Off Switch This switch activates or disactivates MiniLog Switching off during recording terminates the current sequence Switching on without simultaneous depression of recording button starts dialog between MiniLog and PC via serial interface Simultaneous depression of recording button and switching on starts MiniLog recording Recording Button The recording button serves to start recording and can only be used during switching on phase Button depression after switching on or during recording has no effect on the recording LED The LED serves to indicate battery condition during switch on and sampling rate during recording MiniLog 12 04 Allocation of Input Terminals MiniLog 12 04 Allocation of Input Terminals Wiring of MiniLog with the sample to be recorded may take place either before or after recording start up However for simplicity of operations reasons it is recommended to start recording prior to wiring the samples with MiniLog This leaves the operating elements free on off switch recording button from interfering cabling MiniLog DC version has been equipped with 2 input terminals for DC voltages AC DC version holds 1 terminal AC channel 1 and 1 terminal DC channel 2 DC input terminals are marked red while AC input terminals are marked black as is the case with common ground terminal AC DC version only MiniLog cont
6. of faults Guarantee period expires after one year of delivery date 31 32 Guarantee MiniLog 12 04 MiniLog 12 04 10 Technical Data Technical Data 33 Technical Data MiniLog DC Version 128 and 512 Channel 1 and 2 for DC Measuring Range Channel 1 and 2 DC 300 mV 3V 30 V Accuracy 96 of value indicated 0 5 0 5 0 5 Basis Deviation 4 mV 40 mV Operating Temperature 15 C to 60 C Relative Humidity 10 to 18 non condensing Recording Capacity Version 128 128 KByte 85 000 Sampling Values Sampling Rate o1s oss 10s 60s Single Channel 10 days 60 days Recording Capacity Version 512 512 KByte 340 000 Sampling Values Single Channel 40 days 238 days PET Dimensions approx 11 2 x 7 x 3 3 cm Weight approx 220 g incl Battery Battery E Block 6LR61 Typ Alkaline 34 MiniLog 12 04 Technical Data MiniLog AC DC Version 128 and 512 Channel 1 for AC Channel 2 for DC Measuring Range Channel 1 AC eff 250 mV 2 5V 25 Accuracy of value indicated 1 5 1 5 1 5 Basis Deviation 1 0 mV 4 mV 40 mV Mesuring Range Channel 2 DC 300 mV 3V 30V Attenuation at 16 Hz 50 Hz 45 60 dB 45 60 dB 35 45 dB Accuracy 96 of value indicated 0 5 0 5 0 5 Basis Devitation 0 6 mV 4 mV 40 mV Operating Temperature 15 C to 60 C Relative Humidity 10 to 18 non condensing Recording Capacity Version 128 128 KByte
7. 2 3 7 Recording 12 BED 12 4 Allocation of Input 13 5 Standard 19 5 1 Starting up Standard 19 5 27 LED Flashing Rate Livrente 20 6 Pre Programmed 21 6 1 Starting Up Pre Programmed Recording 22 6 2 LED Flashing 23 6 3 Alarm Mode 24 6 4 Single Channel 24 6 5 Fixed Measuring Range 25 6 6 Premature Termination of 25 MiniLog 12 04 Contents 7 Battery 27 7 1 Battery Check during 27 7 2 Battery Current Consumption and Lifespan 28 7 3 28 8 Replacing Power 1 29 8 1 Adjusting RTC after Replacing 29 8 2 Integrated Buffer Battery 30 9 je 31 10 Technical Data iiini 33 MiniLog 12 04 1 MiniLog 12 04 Introduction MiniLog is a stat
8. 5 s rate until reaching alarm time Upon coinciding alarm and real time recording will start automatically with pre set sampling rate Note In case of starting up MiniLog pre programmed recording after reaching pre set alarm time no recording takes place and the LED will keep on flashing at 5s rate until total discharge of battery It is thus important to adjust time and date correctly when programming MiniLog via PC real time Single Channel Recording For doubling MiniLog channel 1 storage capacities channel 2 may be switched off Once MiniLog has been pre programmed via program WinLog in this way the 2 channel will not record after start up Note Wiring channel 2 has no effect on recording procedure on channel 1 MiniLog 12 04 6 5 6 6 MiniLog 12 04 Pre Programmed Recording Fixed Measuring Range With input voltages frequently within or near upper limits of measuring ranges 300 mV 3 V or 30 V at DC input and 0 25 V 2 5 V and 25 V at AC input resp disactivation of Auto Range mode and switching to fixed measuring ranges could hold advantages to prevent frequent switching between measuring ranges and resulting in incorrect sampling recordings For this purpose WinLog allows individual channel disactivation of Auto Range mode and substitution with fixed measuring range Once set MiniLog will keep with this fixed range recording until termination Note Since overrange operation could produce unproc
9. ains one common ground for both input channels reference ground which the user has to take note of when wiring input terminals Following are cases for the wiring of input terminals according to various sampling tasks 14 Allocation of Input Terminals Case Simultaneous recording of pipe and foreign pipe potentials MINILOG DC Foreign Pipe Electrode Channel 1 Sampling Potential Channel 2 Sampling Potential MiniLog 12 04 MiniLog 12 04 Allocation of Input Terminals Case Simultaneous recording of potential and rectifier current MINILOG DC Pipe Electrode Channel 1 Sampling Potential Channel 2 Sampling Current 16 Allocation of Input Terminals Case Simultaneous recording of potential and pipe current MINILOG DC Electrode Channel 1 Sampling Pipe Current Channel 2 Sampling Potential MiniLog 12 04 Allocation of Input Terminals Case Simultaneous recording of AC voltage and potential MINILOG AC DC Electrode Channel 1 Sampling Potential Channel 2 Sampling AC MiniLog 12 04 17 18 Allocation of Input Terminals MiniLog 12 04 5 1 MiniLog 12 04 Standard Recording Standard Recording MiniLog enables instant sampling values recording without requiring pre programming via PC To facilitate this a 3 position switch sampling rate selector switch has been mounted on the front plate selecting sampling rates of standard recordings 0 5 s
10. ched off and re switched on again MiniLog 12 04 8 1 MiniLog 12 04 Replacing Power Battery Replacing Power Battery LED remaining dead upon switching MiniLog on indicates discharged battery necessitating replacement with fresh 9 V Alkaline type block battery Although discharged battery does not allow continuation of recording but serves preserving recorded data For this reason the discharged battery is to be kept in place until replacement handy By doing so the lifespan of integrated Lithium is being extended too It is important to use 9 V Alkaline type block battery only The use of Zink Carbon or 9V Nicad rechargeables should be avoided since all recording capacities of MiniLog are calculated upon discharge characteristics of 9 V Alkaline type batteries Note To prevent leaking damages the discharged battery should be replaced soonest possible Adjusting RTC after Replacing Battery Replacing main battery disrupts power to Real Time Clock thus requiring adjustment by program WinLog via PC This ensures recording taking place even without having adjusted timer via program Winlog and PC after replacing battery 29 Replacing Power Battery 8 2 Integrated Buffer Battery Back up of sampling values recorded even with MiniLog switched off is effected by permanent power supply from 9 V power battery Due to extremely low power consumption of storage module a discharged battery holds sufficient power to sec
11. d via MiniLog serial interface to PC Specially Convenient processing designed software WinLog allows of data by WinLog graphic display of sampling values on screen plotter or printer resp Evaluation software 55 5 recorded data and provides statistical calculations maxima minima mean value Comprehensive and standard deviation thus facilitating Statistics and hitherto time consuming evaluation of Display Features recordings Compatibility with existing software applications by ASCII storage of recording data MiniLog 12 04 Rapid Start Up 2 Rapid Start Up Channel 1 Ground Channel 2 1 Channel Gind MiniLog LED Button 1 MiniLog Off by On Off Switch 2 Sampling Rate Selection 0 5 s Recording max 6 hours 24 hours 128KB 512KB 10 5 Recording max 5 days 20 days 60 s Recording max 4 weeks 16 weeks 3 Keep button depressed and then switch MiniLog on 4 Release button after LED started flashing approx 1 s 5 MiniLog records with LED flashing accordingly Connect input terminals with potential to be sampled MiniLog 12 04 Rapid Start Up MiniLog 12 04 Minilog Structure 3 MiniLog Structure MiniLog miniature sampling values acquisition unit consists of multiple sub units partly operating independently MiniLog 12 04 2 Signal Inputs with 3 measuring ranges plus auto range each Sampling values storage of approx 85 000 340 000 entri
12. e of the art battery powered miniature measured values logging unit for the recording of electrical potentials Two analog recording channels in combination with large storage capacity enable logging of progression of potentials and currents shunt measurement over several weeks without requiring battery replacement Rapid sampling enables high resolution short term logging of fast changing potentials e g waste current interference off potential measurements Slow sampling rates offer ideal conditions for long term recordings over several weeks DC inputs are effectively protected against falsifying 16 and 50Hz AC voltages by active low pass filters The integrated real time clock provides all sampling values recorded with a date and time stamp Pre programmable mode provides starting up of sampling values recording at any time desired e g measurement of stray currents during night hours and over weekends Introduction Miniature Design Dual Channel Recording Auto Range 85 000 340 000 Sampling Values Short Term Recording and Long Term Recording of AC and DC Voltages AC Voltage Filter Real Time Clock Alarm Mode Introduction PC assisted individual MiniLog coding RAM programmed text and figures allows identification of Coding MiniLog sites when processing of Individual MiniLogs sampling values data e g when having operated multiple MiniLogs simultaneously Transfer of sampling values recorde
13. es 128KB 512KB Microprocessor with program and data storage Real Time Clock with date and time Battery Supervision and Buffer Battery for sampling values storage Serial Interface for data transmission Operating Elements On Off Switch Sampling Rate Selector Switch Recording Button LED 10 Minilog Structure 3 1 3 2 Signal Inputs MiniLog has 2 signal inputs DC version allows DC measurements on both channels AC DC version allocates channel 1 to AC voltage measurements only while channel 2 takes DC voltages only Both inputs are protected against surge voltages of up to 300 V while low pass filters on DC inputs only prevent falsification of DC measurements by stray interfering AC voltages MiniLog samples both channels quasi simultaneously 5 ms time shift producing quasi simultaneous channel recordings Automatic change of measuring ranges during recording by Auto Range feature provides adjustment of ranges in case of measurement range over stepping or under stepping resp Auto Range feature operates on both channels independently and may thus be terminated at will by program WinLog Sampling Values Storage Sampling Values Storage hold approx 85 000 340 000 values MiniLog auto disactivates in case of overflowing storage thus terminating recording The integrated buffer battery prevents data loss by providing power to storage during replacement of supply battery MiniLog 12 04 3 3
14. essible sampling results it is recommended to keep Auto Range mode whenever possible Premature Termination of Recording MiniLog will terminate recording standard or programmed once storage capacity has been reached or power battery being discharged In case of wanted premature termination of recording e g for PC processing of sampling values recorded so far MiniLog is to be switches off with on off switch This terminates recording that cannot be continued thereafter Renewed starting up recording will invariably erase previously recorded sampling values thus backing up such data for PC processing is important prior to termination of recording Note No data loss occurs when just switching MiniLog on without depressing recording button 25 26 Pre Programmed Recording MiniLog 12 04 7 1 MiniLog 12 04 Battery Supervision Battery Supervision When switching MiniLog on without depressing recording button red LED will flash automatically indicating current battery condition as per following 100 gt capacity gt 50 continuous light 50 gt capacity gt 25 rapid flashing 25 gt capacity gt 5 slow flashing After 3s LED will lighten continuously irrespective of battery condition but in correspondence with operating functions Dead LED after switching on indicates battery discharged and requiring replacement see Battery Replacement Battery Check during Recording While
15. pon locking on correct pre set rate the LED will indicate as per following LED flashing Sampling rate every 0 5 s 0 55 every 2 5 10s every 3 5 60s 20 MiniLog 12 04 MiniLog 12 04 Pre Programmed Recording Pre Programmed Recording Once linked with PC via serial interface cable MiniLog may be pre programmed intelligently with WinLog in accordance with the technician s requirements 9 different sampling rates 8 with AC DC version only are thus pre programmable 0 1 DC version only 0 5 5 15 2s 55 10 s 30 s 60 s and 120 s Using mode allows individual disactivation of Auto Range mode of both recording channels and substitution with fixed measuring ranges 300 mV 3 V or 30 V Alarm mode allows pre programmed activation of recordings at any given time or date Switching off channel 2 will double the recording capacity of channel 1 Pre programmed recording mode is ideally suiting such sampling tasks when standard recording does not deliver optimal parameters Pre programmed MiniLog operation overrides sampling rate selector switch and recording takes place in accordance with PC pre programmed sampling rate 21 Pre Programmed Recording 6 1 Starting Up Pre Programmed Recording Please note that previous MiniLog user might have left the unit with settings fitting his requirements as to sampling rate measuring range and alarm time and date In order to eliminate risk of inappro
16. priate recording it will be safe to initiate standard recording To start up pre programmed recording it is necessary to switch MiniLog off keep recording button depressed and switch MiniLog on again Slow flashing LED indicates MiniLog recognition of depressed recording button Keep recording button depressed until LED flashes fast approx after 5s Only now pre programmed recording has been started Note In case of premature release of recording button LED has not started fast flashing MiniLog will record as per standard recording settings In order to effect pre programmed recording MiniLog has to be switches off and restarted as per above instructions MiniLog 12 04 Pre Programmed Recording 6 2 LED Flashing Rates After starting up pre programmed recording LED will flash with 0 5s rate until MiniLog has settled on pre selected sampling rate Upon locking on correct sampling rate LED will flash during recording at rates as per following LED flashing Sampling rate 10 times s 0 1 5 2 times s 0 5s every 1 5 1s every 2 5 25 55 105 every 3 5 30 5 60 8 120 5 MiniLog 12 04 23 24 Pre Programmed Recording 6 3 6 4 Alarm Mode This mode allows pre setting MiniLog starting up of pre programmed recordings at any given time or date being assisted by PC and program WinLog Once the alarm mode has been activated by program WinLog and MiniLog pre programmed recording set the LED will flash at
17. recording MiniLog files relevant 9 battery condition per every 340 sampling value recorded e g with sampling rate of 0 5 s every 3 Minute This ensures corresponding battery condition and sampling values data when transferring data from MiniLog to PC for processing purposes and graphic display Additionally MiniLog supervises battery condition permanently during each sampling operation and will terminate recording once it discovers that low battery condition will not ensure reliable data recording any longer In that case MiniLog backs up sampling data recorded so far and auto disactivates Dead LED indicates termination of recording 27 28 Battery Supervision 7 2 Battery Current Consumption and Lifespan By means of utilizing state of the art current saving components and intelligent circuitry design the current consumption by MiniLog is extremely low Mode of Operation Current Consumption Battery Lifespan Off lt 0 1 mA 1 year On 7 mA 3 days 0 1 5 9 mA 2 days 05 15 6 mA 3 days 2s 4mA 5 days 5s 10s 1 mA 3 weeks 60s 120s 0 3mA 10 weeks 7 3 Auto Disactivation During periods of MiniLog neither being programmed nor read by PC via serial interface the microprocessor will switch off MiniLog after approx 5 min and LED extinguishes In order to save battery power it is thus recommendable to switch off MiniLog manually by on off switch For re activation and operation in conjunction with PC MiniLog has to be swit
18. ure data storage even in case of incapability of further recording During replacement the integrated Lithium battery takes over power supply of MiniLog storage module thus no loss of sampling values The Lithium battery holds sufficient power of data back up over one year at least even with no 9 V battery installed To protect the Lithium battery from undue load the 9 V battery should remain in place even if incapable of further recording By doing so the lifespan of Lithium battery will be extended to provide power to data storage over several years However it is to be noted that integrated Lithium battery is incapable of providing power to MiniLog timer when replacing 9 battery so that timer will have to be adjusted via PC after battery replacement also refer to Replacing Battery Caution Due to risk of ground circuits or destruction by lightning MiniLog should not be operated on mains supply unit substituting 9 V battery MiniLog 12 04 MiniLog 12 04 Guarantee Guarantee The unit has been tested and aligned by the Manufacturer Relevant legal regulations apply as to guarantee Excluded from such guarantee are units with normal wear and tear improper handling use and mechanical over stress Likewise excluded are units with alterations or modifications and attempts to repair Attempts to repair should be avoided even in case of emergency and the unit returned to the Manufacturer together with a brief description
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