UNIT OPERATIONAL PROCEDURE

BITE2/2P – BITE3 – BGFT

INDEX

SECTION 1:        BITE2 / 2P LAYOUT

BITE2

BITE2P

SECTION 2:        BITE2 / 2POPERATION

1.      Before performing a test with the BITE2 / BITE2Pfully charge the receiver. This is done asfollows.

a.      Turn off the receiver.

b.      Insert the ac powercord into the transmitter ac receptacle at J1. Plug the power cord into an outlet.

c.      Connect the charger 3-pin input connectorto J4 on the transmitter at the charger panel.

d.      Connect the charger 3-pin output connector to the receiver 3-pin mating connector.

e.      Press the Charger On/Offswitch on the transmitter.

f.        Theyellow / red LED on the panel turns on to indicatethat charging is underway. The yellow / red light flashes when chargingis complete.

2.      When enteringthe battery room the first thing to do is inspect batterystring. Look for thefollowing things.

a.      No leaks – These can not only be a safetyhazard but can also lead to ground faults.

b.      No bulgesor deformities in the batteryjars. This indicatesexcessive corrosion of the plates. These batteries should bereplaced as soon as possible. If not the battery jars could rupture.

c.      No corrosionon the straps. If corrosionis seen this should be cleaned off as it canlead to higher strap resistances causing larger voltage drops. This can lead tolower charge currents in sections of the battery string, which lead to battery sulfation.

d.      Check the battery electrolyte levels. If these are low it will sulfate the plates and willcause the batteries to run hot which can lead to a thermal runaway condition.

e.      Verify the temperature. If the room is hot this will reduce the life of a battery.In the case of VRLA batteriesit is important that the room be cool. If not the VRLA batteries will begindrying out and this can lead to a thermal runaway condition, leading to acatastrophic failure.

f.        Verify adequateventilation. If thereis no adequate ventilation a buildup of hydrogen can occur. This could lead toan explosion.

3.       Verify battery string is in float mode.If the batteries are not in float mode then they are stillcharging. DO NOT PROCEED WITH THE OHMIC TEST. If the batteries are not fullycharged then their plates are partially sulfated. This will lead to false testresults.

4.      Power up receiverby pressing the green power on button.

a.      The unit will now initialize. Verifythe following.

i.     The unit has the latest firmware.

ii.     

The date and time in the unit is correct.

1.      If the date and time needs to be updated then from the MAINmenu press the menu button repeatedly until SET TIME is displayed.

2.      Use the UP / DOWN keys to set the time then selectSET.

3.      The screen will displaySAVE NEW TIME SETTING, selectYES.

iii.     Note the number of available memorycells in the unit.

NOTE: If the number ofavailable memory cells is below 1000 it is recommended to transfer any data to be saved to Power DB and clear the memory.See Annex A on clearing the receiver memory.

b.      Afterinitialization, the screen on the receiver prompts you to select the WANDoption. This option allows you connect a scanner to the receiverin order to scan the test location ID, ambienttemperature, and pilot cell temperature using preprinted bar codes provided byMegger.

c.      If you do not wish to use a bar code scanner select NO“N” to bypass this selection.

NOTE: If you do wish to use the Bar Code Scanner see the Bar Code ScannerManual.

d.      

The receiver now prompts you to set baseline, warn and fail values for the test.

i.      The BITE 2/2P now lets you setbaseline, warning and fail impedance values when conducting a test. Then, afterdisplaying the cell or strap measurements, the BITE 2/2P receiverscreen will indicatePASS, FAIL or WARN and will display the measuredvalue as a percentage of the baseline value.

ii.     If you know the baseline valueand limits to use and wish to use them thenselect YES “Y” and perform the following steps otherwise select NO “N” andproceed to step vi.

iii.     Use the       to scrollthrough the digitsuntil the desireddigit is displayed.

iv.     Press

v.     Repeat for each digitand the decimalpoint until the desired baseline,warn and fail values are displayed.

vi.     The receiverwill now displaythe SPLIT STRAPoption. This optionis used if parallel stringsare being tested. If you are testing a series string then select NO “N” tobypass this selection.

vii.     If you are testingbatteries with parallelstraps.

NOTE: Splitting a strap may not split the current equally.Verify that the current is split fairlyevenly between the straps. If the currentsplit is not even,then try to find another location where the current is more evenly split.

viii.      To enable the split strap featureselect YES, “Y” on the receiver.

ix.     The receiverwill then promptyou to enter a multiplier, which is a numericvalue that the receiver uses to determine the measurement of the entire strap.

x.      Forexample, suppose that the strapyou want to measureconsists of four cables, but you can get the standard CT around only two ofthem. You would need to enter a multiplier of 2.

xi.      Thereceiver would then multiply the reading you take by two so that the proper test results are computed forall four cables.

xii.     Press or to specify the correctmultiplier.

xiii.      When the multiplier you want to use is displayed, press to accept themultiplier value.

xiv.  

xv.      The receiverwill now prompt you to save the settings. Select YES, “Y” inorder to save the setting sand start the actual ohmic testing.

5.      Connect CT

i. The receiver will now prompt you to connectthe CT to a strap. Connectthe CT to the 4 pin connector on the bottom of the receiver handle. Thenconnect the jaws of the CT around any strap in the string.

6.       Ripple measurement. After the CT is connected to the unit andthe battery string the Ripple current will be displayed on the screen of                                                                  the unit.

NOTE: If the ripple current exceeds5A per 100Ah of batterycapacity; then stop. The BITE2 / BITE2P has found a problem withthe string. Excessive AC ripple will cause heatingof the battery string which will accelerate plate corrosion as well as dry out. This must becorrected. To troubleshoot the problem, turn off the charger and take the measurementagain. If the ripple is now withinsafe limits then there is a problemwith the charger. If the ripple still exists then the ripple is comingfrom the load and need to beinvestigated.

If the current measuredon the receiver is less than 5A per 100Ah batterycapacity then pull the triggerof the receiver to save the measurement.

7.       The receiver will now prompt you toconnect the transmitter across the battery string. Connect transmitter acrossbatteries to be tested, provided the voltage across the transmitter does not exceed275VDC. If the battery stringvoltage exceeds 275VDC then sectionalize the test into multiplesections.

8.       Onceconnected across the string turn on the transmitter power button and waitfor the ready light toilluminate and the output current to measure 9 to 11A.

Problem: The over-voltage light is illuminated.

A.      Thetransmitter is connected across a voltagethat exceeds 275VDC.Sectionalize the string by connecting the transmitter across only half the string.Test this half

ofthe string then move the transmitter leadsacross the secondhalf of the string and test that half.

B.      If the voltage across the transmitteris less than 275VDC but the over-voltage light is still illuminated thenthere may be excessive noise across the leads of the transmitter. First turn off the transmitters output. Then clip the outputsource leads together. Now turn on the output. If theover-voltage light still comes on thenthere is a problem with the transmitter that needs to be repaired. If the over- voltage light does not comeon then this indicates that there is noise on the battery string that iscausing the over-voltage condition. This will typically be seen whentesting UPS systems. Some UPS chargers will use a pulse rectifier withsnubbers and uses the batteries as filters. This can cause high frequency transientsin the battery string. These transients would not have the energy to heatbatteries but could cause the transmitter over-voltage circuit to trip. Tryconnecting the transmitter across only part of the string. If this does notwork then the transmitter can be modified with a new filter. It wouldhave to be sent back to the factory for this modification.

Problem: The outputcurrent on the transmitter measure0A.

First; turn off thetransmitters output. Then clip the output source leads together. Now turn on the output. If the outputcurrent still reads 0A then there is a problem with the transmitter that needs to be repaired. If the outputcurrent now reads approximatelybetween 9 and 11A then there is an open in the battery string under test. Turn off the transmitter and connectthe source leads across half the string. Nowturn on the output. If the current measures approximately 9 – 11A then move the transmitter across the other side ofthe string it should read 0A. Continue splitting the bad sectionof the string in half until you locate the open batterycell or open strap.

Problem: The output currenton the transmitter is not 0A but it is lower than 9A. First; turn off the transmittersoutput. Then clip the output source leads together. Now turn on the output. If theoutput current still reads low then there is either a problem with thetransmitter that needs to be repaired or the AC power input jumpers arenot set correctly on the AC power input module. If the output current nowreads approximately between 9 and 11A then there is a high impedance in thebattery string under test. Turn off the transmitter and connect the sourceleads across half the string. Now turn on the output.If the current measures approximately 9 – 11A then move thetransmitter across the other side of the string it should read lowcurrent. Continue splitting the bad section of the string in half until youlocate the high impedance battery cell or strap.

Problem: The output currentmeasurement on the receiver does not match the current measurement onthe transmitter.

This is an indication of aparallel path. The transmitter is measuring the total current being deliveredby the transmitter. The receiveris measuring only the currentgoing through the string under test.

Problem:The receiver displaysthe Low Amps message (Lo_A)

A.     Verify the transmitter is displaying approximately a 9 to 11A output on its meter, If it reads0A then see the problem above “The outputcurrent on the transmitter measure 0A.” If the transmitter reads below 9A but not 0A then see theproblem above “The output current onthe transmitter is not 0A but it is lower than 9A.”

B.     Ifthe transmitter output is between approximately 9-11A but the receiver displays the Low Amps message then turn off the transmitter output and clip theoutput source leads of the transmitter together and place the CT around thesource leads. Now turn on the transmitter output. If the current measured onthe receiver still reads Low Amps then there is either a problem withthe CT or the receiver may need repair. If the currentmeasured on the receiver does match the current measured on thetransmitter but reads Low Amps when on the battery string then contactTSG.

9.      BatteryImpedance: Once the transmitter is connected and the transmitter output andreceiver current measuresapproximately between 9-11A you are ready to start measuring impedance. Pull the trigger onthe receiver to begin. This will save the transmitter output current value tothe test data file memory and bring up the first battery cell impedancemeasurement screen.

10.   Place the receiver acrossthe terminals of the first battery jar in the string. Be sure to get on theposts of the batteries if possible. The cell impedance and cell voltage shallnow be displayed on the screen of the receiver. Pull the trigger to save thesevalues to memory. The receiver is now ready to measure the strap resistance.

11.   Strap resistance measurement. Placethe receiver across the first inter-cell connector (Strap) in the string. Besure to get on the posts of the batteriesif possible. The strap resistance shall now be displayed on the screen of the receiver. Pull the trigger to save these values to memory.The receiver is now ready to measure the next battery jar.

Problem: The string has multiplestraps on each battery.

The BITE2 / BITE2P saves the testdata in cell – strap sets. This requires that the measurements be taken in theorder of cell then strap then cell then strap..etc. This means that the BITE2 / 2P only will record themeasurement of 1 strap per batteryjar. If the battery has multiple straps then place the receiver acrosseach strap one at a time but DO NOT PULL THE TRIGGER. Look at theimpedance value of each strap on

thereceiver then placethe receiver across the strap with the highest impedanceand then pull the trigger. This will save the worst case impedance value.

Problem: The receiver is not measuringan impedance value oris displaying “OVER” This would indicate the impedance ofthe battery jar under test is so high that it is out of range of the receiver.Place the receiver across a strap and see if it measures impedance. Ifit does measure an impedance value then the battery under test has a problem.If the receiver does not measure impedance across a strap then the receivermay need repair.

NOTE: VRLA Batteries (sealed batteries) canbe prone to this. Since water cannot be added they will dry out over time. As the separators dry out, they shrink. Eventually they pull away from theplates, causing the impedance to increase significantly.

Problem: The receiver does notmeasure a voltage value, but my DVM does. (The Receiver voltagemeasurement does not match the DVM measurement.)

This would indicate the capacity of the batteryjar under test is near zero. The DVM may read a voltage because the DVM is ahigh impedance device. The BITE2 / BITE2Phas a lower impedance than a DVM. Thismay cause the voltage to get loadeddown on batteries with little to no capacity.

Problem: I need to redo the cell / strap measurement.

In order to repeat a cell orstrap measurement both the initial cell and strap measurements needs to be completed. This is because they aresaved in pairs. To repeat the test press theUP arrow on the receiverto go to the last saved cell / strap dataset. You will see the text OVER next to them. You can now repeat the measurements of both the cell (batteryjar) and the strap.

12.  End Test (Short Leads together)

a.       Continue measuring cell / strap combinations until the last cell is measured. There will always be one more cell thenstraps in a string. Since the BITE2 records the data in cell / strapcombinations the receiver leads need to be shorted together to simulate a strapafter the last cell is measured.

13.  Print Data

a.      Toprint test resultson the built-in printerof the BITE 2P transmitter, connectthe printer cable to the 7-pin connector on the receiver and toJ3 on the BITE 2P transmitter. The receiver will recognize it isconnected to the transmitter printer and display the appropriate menu,

b.      Select TRANSMIT DATA

c.      Select PRINTER

d.      Select SELECT

e.      Usethe UP / DOWN key to selectdesired test.

f.        Select ACCEPT.The test should now print out.

14.  Download to Power DB

a.      See the Section 6.1.0

15.  Create a Report

a.      See the Power DB Manual

SECTION 3:        BITE3 OPERATION

1.      Charge Unit

The battery module containsnickel-metal-hydride cells and has a built-in battery-management system that controlscharging and monitors discharge. It is not possible for the user to over-charge or over discharge the battery. For your own convenience it is best to chargeit regularly to keep it toppedup, but leaving it in a discharged state will do no harm.

On the front of the batterymodule are two buttons and a 10-segment LED display. To find the amount of charge in your batterymodule, whether connected to your BITE 3 or separate, press the Battery Condition button.

J6

J5

Figure-4: BITE 3 battery chargercondition

The Battery State Indicator willlight between 1 and 10 segments signifying between 10% and 100% charge respectively. After a fewseconds this display will automatically go out.

BATTERY CHARGING

Please note - The battery shouldonly be charged within the temperature range 32°F – 115°F (0°C to 45°C). Fast charging will not be allowed if the temperature is below 10°C. Fast charging causes the temperature of thebattery to rise. If the temperature exceeds 115°F (45°C) the charging rate willbe reduced automatically.

To charge the battery, yourbattery module must be removed from the instrument. Remove the module bypressing on the raised circular area of the retaining clips and pull the top ofthe clip away from the instrument body. The module now unplugsfrom the base of the instrument. Plug in the charger (J4) or connect theoptional 12 volt vehicle-type battery using the ‘cigarette lighter’ lead. TheLED "Battery State" indicator will light and show movement when thebattery is charging. The battery may be recharged before it has been fullydischarged. It will normally be recharged to 90% of capacity within 2 ½ hours.Full charge may take up to 4 hours before indicating that the battery is fulldepending on the initial state of the battery. When charging is complete thebattery management circuitry will switch off so that over-charging isprevented.

As the battery ages, it may start to lose its capacity. In this case the batterymodule has a slowcharge facility which isactivated by pressing the Slow Charge (Ë) button (J6) whileswitching on the charger supply until the indicator bars start to move. Thismethod of charging can take up to 48 hours and so is best reserved for aweekend or a period when the instrument is not required to be used.

THE BATTERY STATE INDICATOR

The Battery State Indicator provides information on the amountof charge in the battery,but is also used to signalother conditions as follows:

Standard Charging (Fast):

The batterymodule is chargingat its standard rate. The LED is progressing acrossat a fast pace

Slow Charging (Slow):

The batterymodule is chargingat its slow rate. The LED is progressing at a slow pace

Standard charging but at a slow rate (Flashing and Slow):

Thebattery has been set to charge at its standard rate but, because the batteryhas become hot, it has switched charge rates to a lower rate while the batterycools down. Wait for the temperature to drop and/or move to a cooler location. The stationary LEDs are flashingwhile one LED progresses at a slow pace.

Not charging. There is a temperature problem.

The batteryis too hot or too cold and charging has therefore been interrupted untilthe battery returns to a temperature between 32°F and 115°F (0°C and 45°C). The stationary LEDs are flashing.

Input Voltage Too Low:

The chargersupply is not supplying sufficient voltage to the battery moduleto charge the batteries. TheLED is progressing from right to left.

Battery nearly exhausted:

The battery capacityis very low. Recharge it.The one remainingLED is flashing.

Error: Reset:

An error has occurredwithin the batterymodule. The circuitryis resetting. Wait a few momentsand the fault should clear. The first, fifth, sixthand tenth LEDs are flashing in unison.

Overvoltage problem:

The chargingsupply voltage is too high. Disconnect the charger and rectify the fault.The LEDswill progress from outer LEDs to inner LEDs and vice versa.

2.      Program Unit

a.      Load SITE and STRING information into the BITE3

(NOTE: This can be done eitherby entering the datadirectly from the front panel ofthe unit or using the Advanced / Pro Power DB software to export the SITE andSTRING data to the unit.)

(NOTE: If the SITE and STRINGdata is already loaded then this can be skipped)

b.      Press MENU Key, scrollover to CONFIG then STRINGSand press ENTER.

c.      Press MENU select NEW and pressENTER.

d.      Use number keypad to input Site, String Name and baselinedata.

e.      Use arrows to set Warning, Fail, Change and Deviation valuesif desired.

f.        Press MENU Key and select SAVE and CLOSE.

3.      Inspect battery string.

When enteringthe battery room the first thing to do is inspect batterystring. Look for thefollowing things.

a.      No leaks – These can not only be a safetyhazard but can also lead to ground faults.

b.      No bulgesor deformities in the batteryjars. This indicatesexcessive corrosion of the plates. These batteries should bereplaced as soon as possible. If not the battery jars could rupture.

c.      No corrosionon the straps. If corrosionis seen this should be cleaned off as it canlead to higher strap resistances causing larger voltage drops. This can lead tolower charge currents in sections of the battery string, which lead to battery sulfation.

d.      Check the battery electrolyte levels. If these are low it will sulfate the plates and willcause the batteries to run hot which can lead to a thermal runaway condition.

e.      Verify the temperature. If the room is hot this will reduce the life of a battery.In the case of VRLA batteriesit is important that the room be cool. If not the VRLA batteries will begindrying out and this can lead to a thermal runaway condition, leading to acatastrophic failure.

f.        Verify adequateventilation. If thereis no adequate ventilation a buildup of hydrogen can occur. This could lead toan explosion.

4.      Verify batterystring is in float mode. If the batteries are not in float mode then they are still charging. DO NOT PROCEED WITH THEOHMIC TEST. If the batteries are not fully charged then their plates arepartially sulfated. This will lead to false test results.

5.      Starting the Impedance Test

a.      Verify the probes are connected to the BITE3.

b.      Turn on the BITE3

c.      Press the MENU buttonto open menu.

d.      Scroll to NEW TEST and then press the ENTER button.

e.      Scroll UP / DOWN until you find the correct SITE andSTRING then press the menubutton.

f.        Scroll to SELECT AND CONTINUE then press ENTER.

6.      Ripple and Float Current

The BITE3 will now proceed to the ripple and float current measurement screen.

a.      Enter the Air Temperature using the key pad and press ENTER.

b.      Place the probes acrossthe longest STRAP in the string.The LED on the probe should start flashing Yellowand the Displaywill read WAITING FOR TRIGGER.

c.      Press the triggeron the hand set. The LED should go to solid YELLOW and the display shouldread MEASURING. This measurement can take about 30 seconds. This is because the unit firstmust measure the impedance of the strap then use the strap as a shunt tomeasure both the AC current (Ripple) and DC current (Float).

7.      Warning Message

a.      The unit will beep when the measurement is complete.

b.      If the ripple and/orfloat current is too low then a message shall appear.

This is what is expected. This message indicatesthe ripple currentis low and the batteriesare in float mode. If this is the case then click YES to proceed with theimpedance testing.

NOTE: If the ripplecurrent exceeds 5A per 100Ah batterycapacity then you have found a problem that needs to becorrected.

NOTE: If the float current reads high then stop the testing the batteries are not fully charged and the readings you getwill be misleading.

Problem: Cannot identifystrap or cell

This can be an indication of afundamental current on the battery string. The BITE3 auto detects cells and straps by measuring the floating voltageon the probes. If the voltage goeshigh this indicates the probes are across a cell. If the voltage goes low this indicates the probes are across astrap. If enough noise or fundamental currentis on the string then the unit may not be able to identify the probesare across anything. In this caseplace the unit in the spectrum analyzer mode and place the probes across a strap. (You may need toplace the probes close to one another on verynoisy systems) If the spectrum analyzer indicates fundamental current is present on the string then stop. Turn the chargeroff and see if the problem clearsup. If it does then the chargehas an open rectifier and needs repair. If it does not then there is a short allowing fundamentalcurrent getting on the string. This must be corrected.This will lead to over-heating batteries.

8.      Battery Impedance

a.      The probe LED should be flashingRED and the unit shoulddisplay SEARCHING.

b.      Place the probes on theposts of cell # 1. Be sure the polarityis correct. The unitshould beep and the LED should start flashing YELLOW. The unit should readWAITING FOR TRIGGER.

c.      Press button on gun to start the measurement.

d.      The LED should go solid YELLOWand the unit should displayMEASURING.

e.      When the measurement is done the unit will beep and the LED will turn GREEN.

Problem: Checking for Lead Set.

The unit automatically detects the type of leadset connected. If this message appears first check the lead connection to the unit. If this is good then try a different set of leads. If this does not work then call customer service.

Problem: Confirm Strap

The BITE3 can automatically detect the difference between a cell and a strap. If the unit displays***Confirm Strap*** this means the unit does not recognize a cell or a strap. If you are measuringa strap then just pull the trigger.If you are measuring a cellyou do not have a good connection.

Problem: Reverse PolarityMessage

This message indicates that the probes are backwards. DO NOT PULL THE TRIGGER. Pulling the trigger will blow the fuse in the unit. Reverse theprobes first.

Problem: Out of Range message

This message indicates that the value you are trying to measure is either too high or thefuse in the unit is blown. Check the fuse. If it is blown replace it.

If the fuse is not blown then clipthe leads of the unit together and take a measurement. If the out of range error is displayed then there is a problemwith the unit. If theunit does take a measurement then the impedance of the cell you are measuringis too high.

Problem: No reading

Either the value you are tryingto measure is either too high or the fuse in the unit is blown.Check the fuse. If it is blown replace it. If the fuse is not blown then clipthe leads of the unit together andtake a measurement. If the out of range error is displayed then there is a problem with the unit. If the unit does take a measurement then the impedance of the cell you aremeasuring is too high.

9.      Strap Resistance

a.      Now move one leadso the probes now measure across the first STRAP. The probe LED should start flashing YELLOW and the unit should display WAITING FOR TRIGGER.

b.      Press the trigger on the hand set. The LED should go to solid YELLOW and the display should read MEASURING.

c.      When the measurement is done the unit will beep and the LED will turn GREEN.

d.      Now move one lead so the probes now measure acrossthe next cell.

e.      Repeat this procedure unit all the cells and straps are measured.

10.  Auto Detection / Cell / Strap

a.      The BITE3 will auto detect the cells and straps. If the cell has multiple strapsthis is not as problem. TheBITE3 will automatically assign a sequential number to each cell it measures.Each strap will be tagged with the corresponding cell number and a letter identifying thestrap. For example if each cell has 3 straps then the straps on cell 1 will automatically be labeled strap 1A, 1B and 1C. The strapsfor cell 2 willautomatically be labeled strap 2A, 2B and 2C

11.  Re-test

a.      If a cell or a strap impedance or voltage does not seem correct you can repeatthe measurement as follows.

b.      Press the MENU button.

c.      Then scroll down the DISCARD MEASUREMENT.

d.      Now repeat the measurement.

12.  End Test

a.      When all cells and straps have been measuredthe test can be saved and closed.

b.      Press the MENU button.

c.      Then scroll down the SAVE AND CLOSE.

13.  Review data on screen

a.      The BITE3 allows the user to view the recorded data in the unit, as text and as a chart.

b.      Press the MENU key.

c.      Scroll over to ANALYZEthen select ANALYZEand press the ENTER key.

d.      Now select test and press the MENU key.

e.      Scroll to SELECT AND CONTINUE.

f.        Now scrolldown to view text and graphs.

14.  Re-do measurement

a.      To retest a cell/jar or a strap,simply scroll to that cell/jar or strap and press the right side of the cursorcontrol pad. Retest the cell/jar or strap. To return to the normal test mode, press the left side of the cursor control pad and scrollto the last cell/jar or strap and continue testing.

15.  Download to Power DB

a.      See section 6.2.0

16.  Create Report

a.      See the Power DB Manual

SECTION 4:        BGFT OPERATION

1.      Determine if ground fault is on negative or positive.

2.      If tracinga positive ground fault then connect the BGFT betweenthe positive battery terminal and earth ground. Iftracing a negative ground fault then connectthe BGFT between the negative battery terminal and earth ground, as shown.

3.       Disconnect the ground lead of any battery ground fault monitoror isolate it from the circuitif possible. (Battery ground fault monitors can add a path to ground)

4.      Verify the BGFT is configured as follows.

a.      All Wheatstone bridge dials are set to the “blue” position.

b.      The output voltage knob is set fully counter-clockwise.

c.      The output switch is off.

d.      If this is a model 246100Cthen the 15V / 50V switch is set to 15V.

e.      The power switch is turned ON.

5.      Place the BGFT receiver’s current clamp around the red lead of the BGFT transmitter. This is done to find the total faultcurrent.

6.      Set the BGFT receivers gain to x100.

7.      Turn on the BGFT and slowlyraise the output voltage to 10V.

8.      If the receiver is displaying an over currentthen lower the gain until a stable reading is achieved. This is the total faultcurrent.

9.      If desired, the fault can becharacterized at this point. Characterization will indicate the resistance of the fault as well as the total leakagecapacitance in the system.(Go to step 14 to characterize the system). This is not required butcan be helpful on difficult faults.

10.  If there are multiplepanels go to the input ofeach panel and place the CT aroundthe input to each panel andlocate the fault current. This will be the panel with the fault.

11.   Oncethe proper panel is found open the paneland place the receiver clamp around each circuit individually.

Problem: The readingwill not stabilize

This would indicate the presenceof sub-harmonic noise. The BGFT transmitter outputs a 20Hzsignal. The receiver uses a low passfilter to detect this frequency. Only the presence of low frequency on thesystem will cause instability. The low frequency signal needs to be cancelledout on the system. This is done by placing

thecurrent clamp around both the line to be measuredand the return path. This will cancel out the low frequencysignal on the system while allowing the receiver to measure the 20Hzsignal from the transmitter.

12.  Locate the circuit with the currentflow. This will be the circuit with the groundfault.

Problem: the currentis split betweenmultiple circuits.

This would indicate eithermultiple ground faults or phantom faults due to leakage capacitance in the system. The individual circuitsneed to be characterized in order to determine what portion of the faultcurrent is real and what portion is due to capacitance.GO TO STEP 23.

13.   Oncethe circuit with the fault is locatedproceed to use the BGFT receiver and CT to tracethe fault.

Characterizing the System

14.   Ifmultiple circuits measure high current then use the built in Wheatstone bridge to identify phantom shorts due to capacitanceand real resistive shorts.

15.  Plug the BGFT feedbackloop into the BGFT transmitter.

16.  Place the feedback loop through the current clamp.

17.  Place the BGFT receiver’s current clamp (withthe feedback loop) around the circuits that are drawing fault current, one at atime. (If characterizing the system then place the CT around the red outputlead of the BGFT transmitter.)

18.  Characterize the fault usingthe Wheatstone bridgeusing the flow charton the following page.

19.  The characterization shows how much of the faultcurrent is capacitive and how much is resistive.

NOTE: If the majority of the fault current drops while adjustingthe capacitance valuesthen this indicatesthat there is a high level of leakage current in the system. It will berequired to characterize each individual circuit that is drawing faultcurrent in order to verify the circuit with theresistive fault.

If the majority of the fault currentdrops while adjusting the resistance values then this indicates that there is a lowlevel of leakage current in the system. No further characterizewill be required. Simply locate the circuits that are drawing thefault current and trace them. No further characterization is required.

Characterizingthe circuit.

20.  Plug the BGFT feedbackloop into the BGFT transmitter.

21.  Place the feedback loop through the current clamp.

22.  Place the BGFT receiver’s current clamp (withthe feedback loop)around each of the circuitsreading part of the current. (One at a time)

23.  Characterize the fault usingthe Wheatstone bridgeusing the flow chart on the page 23.

24.   Repeat this on each circuit that reads partialcurrent. This will identify which circuit or circuits have resistive faults.

NOTE: If the majority of the fault current drops while adjustingthe capacitance valuesthen the circuit beingmeasured has primarily leakage current and not a fault.

25.   Oncethe circuit(s) with the resistivefaults are locatedthe feedback loop can be disconnected.Proceed to use the BGFT receiver and CT to trace the fault.

SECTION 5:        DMA-35 HYDROMETER OPERATION

1.      Turning the DMA-35 On and Off

a.      Press the “ON/OFF” icon button. After a self-test, the instrument is in measuringmode.

b.      Press the “ON/OFF” icon button until “Power Off” appears on the display. The DMA-35 has been configured to automatically turn-off after 5minutes of inactivity.

2.      Taking a Reading with the DMA-35

a.       Push down the pump lever.

b.      Submerge the filling tube into the sample fluid.

c.      Slowly release the pump lever.

d.      Wait until the displayed reading has stabilized.

e.      A long push of the “STORE” icon buttonon the back of the DMA-35 immediately storesthe current measuringresult in the memory togetherwith a sample number.

f.        

Push “OK” to accept the reading.

g.      The samplenumber starts at 1 and automatically increments with each storedmeasuring value.

h.      Push pump lever to flush sample fluid out of DMA-35 prior to another reading.

NOTE: The measuring cell must be free of any bubbles.Bubbles critically interfere with the reading. Possible sources of bubbles are:

1.      Leakage at the connection of the fillingtube or screw plug.

2.      Gas bubblescontained in the sample.

3.      The measuring cell has to be completely filled.

NOTE: Carefully cleanthe measuring cell with a neutral solventafter each seriesof measurements to avoid deposit coatings.

3.      Turning the Data LoggerOn and Off

a.      Press the “ON” button,after a self-test, the module LED’s will displaystring contents and string “A” will be selected.

b.      The data logger can be reset by a short push of the “ON” button.

c.      The data logger can be manuallyturned OFF by a long push of the “ON” button.

d.      The data logger will automatically turn OFF after 4 minutesof inactivity.

Data Logger LED Indications

Off, the string is empty and not selected.

On (solid),the string containsstored data but is not selected.Slow blink, the string is empty and selected.

Fast blink,the string containsstored data and is selected.

4.      Transferring Data to Logger

a.      Turn on the data logger and DMA 35.

b.      Select the string on the data logger for which you want the desired data to be transferred.

i.      Press the “SEL/DEL” key once to scroll down to the next string

CAUTION pressing the “SEL/DEL”key during the self-test will erase ALL stored data.

c.      

Line up the IR windowsof the DMA-35 and Data logger.

d.       Usethe “EXPORT ALL” function to initiate the data transferby pushing the followingbuttons on the DMA-35 in sequence:

1.      

Menu - the following screenwill be displayed.

2.      

Select “OK” – The following screen shall be displayed.

3.      

Press “Export” – The followingscreen shall be displayed.

4.      Select “ Export All” - The data will begin to transfer. When complete the following screen shall be displayed.

Export to Data-Logger Complete

5.      Transferring Data to PowerDB

a.      Open Power DB and create a BITE2 / 3 report.

b.      After creating a report,right click on any spot on the report.

c.      

The following selection Window will open.

d.       Verify the hydrometers data logger is connectedto the PC via RS-232 cable and powered up.

e.       Thenselect “LOAD HYDROMETER DATA” the following screen shall be displayedshowing the data transfer progress.

f.        Wait for the transferto complete. (All data-logger cells will transferregardless of if theyhave data recorded)

g.       Whenthe data transferis complete select the desireddata string on the data loggeryou want imported into the report.

6.      Erasing All Stored Data in the Data Logger

a.      Press the ON button.While all the red LED’s (A-H) are lit, press and hold the “SEL/DEL” button for approximately 8seconds while the red LED’s turn off one at a time scrolling backwards from Hto A. Then release the “SEL/DEL” button and wait for the red LED to scrollforward from A to H. Stored data willhave been erased once this sequence is complete.

7.      Erasing All Stored Data in the DMA-35

a.      Press the “Menu” buttonand then selectMeasuring Data by pressing “OK”.

b.      Press the “Trash” icon button and arrow down to “DeleteAll” then select “OK”.

SECTION 6:        POWER DB LITE

SECTION 6.1.0: POWER DB OVERVIEW

Power DB is a PC based Megger instrument interfacing software, thatoperates with multiple Megger units, including Megger’s line of Battery TestingInstrumentation. Power DB will operatewith the BITE2, BITE2P,BITE3, DMA Hydrometer, Torkel and BVM voltage monitors.

There are 3 versions of thePower DB software, Power DB LITE, Power DB Advanced and Power DB Pro. Power DB LITE comes with the BITE2, BITE2P and theBITE3 at no additional charge. The Power DB Advanced and Pro versions areordered separately and have associated charges with them.

The Power DB LITE software allowsoperator to communicate with the BITE2,BITE2P and BITE3 as well as import data, configure the units,import Hydrometer data, create reports and charts, configure the reports andcharts, configure battery data as well as import pre-existing ProActivDatabases. The following table illustrates the differences between thedifferent versions of Power DB.

Thissection will describehow to transfer data from the BITE2 and BITE3 toPower DB. For more information see the Power DB LITE manual.

SECTION 6.1.0: TRANSFERRING DATA FROM A BITE2/2P RECEIVER

Open Power DB LITE. (The followingscreen shall appear)

Click on the pictureof the BITE2. (The following screen shall appear)

Select COM Port that the unit is connectedto then clickOK. (The following screen shall appear)

(NOTE: If you are unsure whatCOM port the unit will be connected to then click on DEVICE MANAGER and scroll down to COM Ports. Expand the COM Port sectionand you will be able to see what the COM portdesignations are.)

Select COM Port for Hydrometer then click OK. (The following screen shall appear)

(NOTE: Ifyou are not using a hydrometer then just click OK to proceed.)

Click YES on the “Do you want to import data from a BITE2” screen.(The following BITE2 data transfer Wizard screen shall appear)

Connect the BITE2 receiverto the COM port you selected.

Power Up the BITE2 receiver by pressing the Power ON key on the receiver.

The message “TRANSMIT DATA (Y/N)?” shouldappear on the BITE2 Receiverdisplay.

Click NEXT in the PowerDB software.

(NOTE: Read all the steps beforeproceeding. The softwarewill time out if too much time lapses between these steps.)

Select “Y” on the BITE2 receiverby pressing the UP arrowkey on the BITE2 receiver. (The following shall be displayed on the BITE2 receiver)

Select “EBITE / PC” on the BITE2 receiverby pressing the UP arrow key on the BITE2 receiver. (The following shall be displayed on theBITE2 receiver)

Select “PC” on the BITE2 receiverby pressing the DOWN arrow key on the BITE2 receiver. (The receivershall now start transferring the data to the PC)

When the data transmission is complete the followingscreen shall be displayed. This screen shall allowyou to select the data path you wish to save the transmitted data to.

If you wish to save the data to adifferent path then the one displayed then click on the BROWSE buttonand select the desired path.

(NOTE: The default data path is displayed. If you are not savingthe data to a different path just click on NEXT to proceed.)

When the desired path is selected, then click on the NEXT button. (The following screenshall be displayed)

(NOTE: All the recordeddata files in the receiver shall be displayed. Uncheck the box next to any files you do NOT want to save;such as old files that have already been saved.)

Select the desired OWNER byclicking on the drop down arrow. (NOTE: You can also select to add a NEW OWNER)

Select the desired REGIONby clicking on the drop down arrow.(NOTE: You can also selectto add a NEW REGION)

Select the desired SITE byclicking on the drop down arrow. (NOTE: You can also select to add a NEWSITE)

Select the desired STRING by clicking on the drop down arrow. (NOTE: You can also select to add a NEW STRING)

When selections have been completed click on the FINISH button.The transferred data shall now besaved to the desired location and the following import completion message shallappear.

Click OK

SECTION 6.2.0: TRANSFERRING DATA FROM A BITE3

Open PowerDB LITE. (The following screenshall appear)

Click on the pictureof the BITE3. (The following screen shall appear)

Select COM Port that the unit is connectedto then clickOK. (The following screen shall appear)

(NOTE: If you are unsure whatCOM port the unit will be connected to then click on DEVICE MANAGER and scroll down to COM Ports. Expand the COM Port sectionand you will be able tosee what the COM port designations are.)

Select COM Port for Hydrometer then click OK. (The followingscreen shall appear)

(NOTE: If you are not using a hydrometer then just click OK to proceed.)

Click YES on the “Do you want to import data from a BITE3” screen.(The following BITE3 data transfer Wizard screen shall appear)

Connect the BITE3 receiverto the COM port you selected, using the Null modem RS-232 cable supplied with the unit .

Power Up the BITE3 receiver by pressing the Power ON / OFF button on the unit.

Verify the unit boots up to its mainmenu.

Click NEXT in the PowerDB software.

Power DB LITE will now displayall the data files recordedin the BITE3 unit.

Select the data files you wish to downloadby checking the box next to them. When completeclick the NEXT button.

The data shall now transfer from the BITE3to the Power DB LITE software.

When the data transmission is complete the followingscreen shall be displayed. This screen shall allowyou to select the data path you wish to save the transmitted data to.

If you wish to save the data to adifferent path then the one displayed then click on the BROWSE buttonand select the desired path.

(NOTE: The default data path is displayed. If you are not savingthe data to a different path just click on NEXT to proceed.)

When the desired path is selected, then click on the NEXT button. (The following screenshall be displayed)

(NOTE: All the recordeddata files in the receiver shall be displayed. Uncheck the box next to any files you do NOT want to save;such as old files that have already been saved.)

Select the desired OWNER byclicking on the drop down arrow. (NOTE: You can also select to add a NEW OWNER)

Select the desired REGIONby clicking on the drop down arrow.(NOTE: You can also selectto add a NEW REGION)

Select the desired SITE byclicking on the drop down arrow. (NOTE: You can also select to add a NEWSITE)

Select the desired STRING by clicking on the drop down arrow. (NOTE: You can also select to add a NEW STRING)

When selections have been completed click on the FINISH button.The transferred data shall now besaved to the desired location and the following import completion message shallappear.

Click OK