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Table of Contents
Summary of Contents for BRS BIM1
- Page 1 BIM1 / BIM2 / BTC1 / BIM300 Battery Impedance Meters Instruction manual...
- Page 2 Battery Impedance Meters © 2015 BRS Messtechnik GmbH Strohberg 23 D-70180 Stuttgart Germany Email: info@brs-messtechnik.de Tel: +49 711 6558344 File: Manual BIM-BTC-SW17.docx BRS Messtechnik GmbH Page 2 of 36 Version 1.7 / April2015...
- Page 3 Please dispose of the device separately from household waste at your lo- cal collection station or recycling centre. This applies to all European Union countries and other European countries with separate collection systems. BRS Messtechnik GmbH Page 3 of 36 Version 1.7 / April2015...
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Page 4: Table Of Contents
Data export via text file (log file) ..................... 28 Data export via csv files ......................29 Remote control ....................29 Maintenance ....................... 30 Cleaning ..........................30 Firmware updates ........................30 Recalibration .......................... 30 Help ............................30 BRS Messtechnik GmbH Page 4 of 36 Version 1.7 / April2015... - Page 5 Battery Impedance Meters RS232 Communication ..................31 Technical data ....................32 Appendix ...................... 34 11.1 Recommendations for cable running ..................34 11.2 Recommendations for selecting frequencies ................. 34 BRS Messtechnik GmbH Page 5 of 36 Version 1.7 / April2015...
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Page 6: Overview
1 Overview 1.1 Short description The BIM1/BIM2/BTC1/BIM300 are economical, easy to operate and compact battery impedance measuring in- struments. They offer functions of a battery tester, of a battery ana- lyser and a capacity tester and enable the quick test of batteries and accumulators. -
Page 7: Operating Preparations
If that does not work, please use the device manager. Look for “unkown device”. With right mouse click you will come to “update driver software”. If the device is not found, remove and attach the USB cable again. BRS Messtechnik GmbH Page 7 of 36 Version 1.7 / April2015... -
Page 8: Connecting The Measurement Cable For Impedance And Voltage
For very low ohmic cells with threaded bolts or female threads. The two lugs per pole are isolated against each other with an insulating bushing. Available for threads M6, M8, M10. BRS Messtechnik GmbH Page 8 of 36 Version 1.7 / April2015... -
Page 9: Connecting The Measurement Cable For Temperature Or Current (Bim2/3)
– push the orange clamping lugs downwards with a sharp object and guide the wire into the hole above it. The two LEDs indicate the status: green means logically one. BRS Messtechnik GmbH Page 9 of 36 Version 1.7 / April2015... -
Page 10: Connecting The Test Item
The lower the impedance to be measured, the higher the requirements for the meas- urement connection. For very low impedances (<1mΩ), special connection might be advisable - please inquire. Recommendations for proper wiring can be found in section 10.1. BRS Messtechnik GmbH Page 10 of 36 Version 1.7 / April2015... -
Page 11: Applications
For determining the operational behavior measure the DC impedance at 0,5Hz and compare it with a reference value from a new battery. For deeper analysis measure the Nyquist plot and compare it with the plot of a new battery. BRS Messtechnik GmbH Page 11 of 36 Version 1.7 / April2015... -
Page 12: Measurement Functions
If the expected impedance is known, then the closest range can be set. If not, it is best to start at the highest level (1Ω) and reduce it as necessary. The 300Ω range can be used up to 500Ω. BRS Messtechnik GmbH Page 12 of 36 Version 1.7 / April2015... -
Page 13: Battery Discharge During Extended Use
1mΩ 1000mA b) Measurement frequency The measurement frequency can be set between 0,1Hz (1Hz with BIM1) and 1kHz in quasi-logarithmic step with 6 values per decade. The lower the frequency, the longer the measurement time. It is therefore sensible to work with as high a frequency as possible. -
Page 14: Operation
The frequency plot is called Nyquist chart. An alternative representation is in polar form as magnitude an phase. The frequency plot of these 2 variables is a Bode plot. BRS Messtechnik GmbH Page 14 of 36 Version 1.7 / April2015... - Page 15 Example: a good reference resistor shows an inductance of <10nH according to the specification. For a frequency of 1kHz, the inductive impedance (measured as an imaginary part) is 0.063 mΩ. BRS Messtechnik GmbH Page 15 of 36 Version 1.7 / April2015...
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Page 16: Measurement Function For Spectral Measurement
You can move the graphic horizontally by clicking into the graphic with the left mouse button and holding the button down. This type of measurement is also known as EIS (Electric Impedance Spectroscopy). BRS Messtechnik GmbH Page 16 of 36 Version 1.7 / April2015... - Page 17 3/D and 1Hz 1000 71,4 45,5 33,3 21,7 15,2 10,0 0,68 0,47 0,33 0,22 0,15 0,10 Meas. time ca. 3 min ca. 22 sec ca. 2 min ca. 13 sec BRS Messtechnik GmbH Page 17 of 36 Version 1.7 / April2015...
- Page 18 This represents the cross-over be- tween the two approximation curves. The approximation is done using the ZARC model (tilted arch impedance) BRS Messtechnik GmbH Page 18 of 36 Version 1.7 / April2015...
- Page 19 Permanent reference curves can be selected again later if you mark them as “in use” in the field. The values can be shown numerically in a notepad file by clicking on the “plot data” button. They are stored in the file „ RefPlot.txt” BRS Messtechnik GmbH Page 19 of 36 Version 1.7 / April2015...
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Page 20: Measurement Function Capacity Test (Btc1 Only)
During the discharging process no changes of parameters are possible. This is only possible by interrupting the process by pressing the button “break”. The discharge is halted and continued by the respective button. BRS Messtechnik GmbH Page 20 of 36 Version 1.7 / April2015... - Page 21 condensed data with a resolution of ca. 1 measurement per 100 seconds (3. col- umn) Please note the maximum permissible power dissipation: Discharge current Max. voltage ≤200mA 500mA 1000mA 2000mA BRS Messtechnik GmbH Page 21 of 36 Version 1.7 / April2015...
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Page 22: Evaluation Function Tolerance Test
The result is either OK or NOK, the detailed results are stored in the log file and as csv data. An individual curve can be defined in the format of the file „RefPlot.txt”. BRS Messtechnik GmbH Page 22 of 36 Version 1.7 / April2015... -
Page 23: Evaluation Function Diagnosis
The color of the bar indicates a rating: green: good yellow: usable red: unusable For more accurate results, individual tables can be stored in the instrument. BRS Messtechnik GmbH Page 23 of 36 Version 1.7 / April2015... - Page 24 resting times of more than 1 hour, with lead acid batteries more than 4 hours (better: 12 hours) For higher accuracies battery-specific values are necessary. You might find them in datasheets, or you can ask us to determine these individually for you. BRS Messtechnik GmbH Page 24 of 36 Version 1.7 / April2015...
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Page 25: Measuring And Monitoring Voltage
(ca. 50kΩ). The two voltage limits are not permanently stored. When the current is interrupted, the default values (0V, 60V) are reset. BRS Messtechnik GmbH Page 25 of 36 Version 1.7 / April2015... -
Page 26: Temperature And Current Measurements (Bim2, Btc1)
≥ 100ms. The input is electrically isolated and designed for SPC control. The status of the input is shown by the LED adjacent to the connection (green is, logically, one). BRS Messtechnik GmbH Page 26 of 36 Version 1.7 / April2015... -
Page 27: Instrument Configuration
All set-ups are displayed and can be activated or defined as start vector. All settings can be activated and deleted, except the actual setting. BRS Messtechnik GmbH Page 27 of 36 Version 1.7 / April2015... -
Page 28: Data Export
Windows tool Note- Pad as a text file. These results can now be copied into other pro- grams. This is around 100,000 rows of measurements (at 100 bytes/row). BRS Messtechnik GmbH Page 28 of 36 Version 1.7 / April2015... -
Page 29: Data Export Via Csv Files
The software for the Battery Impedance Meter is constantly being updated. For this reason, there is a separate document for the remote control, where the remote con- trol commands are described. A current PDF document can be provided on request. BRS Messtechnik GmbH Page 29 of 36 Version 1.7 / April2015... -
Page 30: Maintenance
If you have any problems or need help or support for any other reason, please con- tact: BRS Messtechnik GmbH, Strohberg 23, 70180 Stuttgart, Germany. Tel: +49-711-6558344, Email: info@brs-messtechnik.de. Please have the relevant information about your device ready. You can find this in- formation in the “info”... -
Page 31: Rs232 Communication
The communication parameters are: Baudrate: 57600 Bd Databits: 8 bit Parity: Stopbit: With RS232 the distances are limited to 3m…5m. For longer distances RS422 should be used. BRS Messtechnik GmbH Page 31 of 36 Version 1.7 / April2015... -
Page 32: Technical Data
15 sec 3/decade and 1Hz stop frequency spectrum measurements ca. 3 min 6/decade and 0.1Hz stop frequency BIM1: 5, 10, 20, 50, 100, 200 mA Amplitude of measure- 5mA….2000mA BIM2&BTC1: 5, 10, 20, 50, 100, 200, 500, ment current... - Page 33 EN 61000-4-3 2008-06 cy electromagnetic field Emitted interference against the discharge EMV resilience EN 61000-4-2 2009-12 of static electricity Radio interference EN 55011 2011-4 Radio interference from ISM devices BRS Messtechnik GmbH Page 33 of 36 Version 1.7 / April2015...
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Page 34: Appendix
Therefore, if possible, avoid these frequencies. In accordance with the law of induction, a magnetic alternating field which cuts across the conductor loop generates a voltage which is superimposed as an interference voltage. BRS Messtechnik GmbH Page 34 of 36 Version 1.7 / April2015...