A&T Qulon-12ns Manual Download Page 19

-37-

according to formula:

К = E

n

/E

av

,

where: E

n

 – nominal battery capacity or capacity 

less then nominal, appointed in view of deterioration of 
batteries.

 

8.4. Method of maximum

The  method  of   maximum  is  applied  if   carrying 

out the measured discharge is impossible or inconveni-
ent. It is based on the assumption, that in the group of 
testing batteries (for example, intended for connection 
in the battery system or already connected in the bat-
tery system) the least worn out battery has known capa-
city (in the elementary case - nominal capacity). 

This method  is  recommended for use  with   the 

worn out batteries.

Connect Qulon-12ns (with  K=1) to each battery 

of   the   group   and   write   down   the   estimated   capacity. 
Find   the   maximum   estimated   capacity   for   the   group 
E

max

, then calculate calibration coefficient for your bat-

tery according to formula:

К = E

n

/E

max

,

where: E

n

 – nominal battery capacity or capacity 

less then nominal, appointed in view of deterioration of 

batteries.

 

-38-

8.5. Method of battery history

The   method   of   battery   history   is   used   during 

scheduled service of  individual battery,  if carrying out 
the measured discharge is impossible or  inconvenient. 
The method is based on the assumption, that in the be-
ginning   of   the   battery   service  life   (right   after  the   first 
connection of Qulon-12ns to the battery), the capacity of 
the battery is accepted known (for example, it is con-
sidered that it is equal to nominal capacity). During fur-
ther service battery capacity estimated by Qulon-12ns is 
compared to this value.

Connect   Qulon-12ns   (with   K=1)   to   the   battery 

and write down the estimated capacity E

m1

, then calcu-

late calibration coefficient for your battery according to 
formula: 

К = E

n

/E

1

,

  where: E

n

  – nominal battery capacity or capacity less 

then nominal, appointed in view of deterioration of the 
battery.

Summary of Contents for Qulon-12ns

Page 1: ... safety precautions and warranty information 2 Contents Introduction 4 1 Safety precautions 5 2 General description 6 3 Battery capacity estimation 7 3 1 What is battery capacity 7 3 1 1 Dependence between battery capacity and dis charge current 7 3 1 2 Battery capacity and battery state of charge 8 3 1 3 Temperature dependencies 8 3 1 4 New batteries 9 3 2 Battery capacity estimation with Qulon 1...

Page 2: ...y looses money If a battery is replaced too late the loss could be even larger Qulon 12ns lead acid battery capacity indicator is a device for battery capacity estimation With Qulon one can sort 12 volt batteries by their capacity and re ject batteries that have lost capacity Memory for keeping test results helps user dur ing testing large amount of batteries The battery capacity estimation is bas...

Page 3: ...re are no parts that need service inside The device should be repaired only by certified personal Attention Do not use device with back lid opened 6 Attention When using Qulon without discon nection batteries from the charger rectifier observe safety rules for working with electric facilities 2 General description There is a LCD display in the center of Qulon s front panel It is used to show amper...

Page 4: ...for LCL 12V33AP battery is given in the table below Discharge time hours Relative capacity 0 1 37 0 3 48 8 Discharge time hours Relative capacity 0 7 53 1 9 76 4 2 84 9 2 92 20 100 Qulon 12ns always shows capacity for 20 hour discharge time If you discharge your battery during smaller time the capacity will reduce 3 1 2 Battery capacity and battery state of charge We need to distinguish capacity a...

Page 5: ...ion Correct estimation of battery capacity can be achieved for fully charged batteries only Therefore the battery should be fully charged before test Normally you need do disconnect battery circuit before test If you plan to test battery without discon necting it from the DC bus it is recommended to sustain the battery at a constant charging voltage without any discharges for at least 2 days If ba...

Page 6: ...2 sage Voltage low and battery voltage at the screen In this case disconnect clamps from the battery and charge the battery in full according to the battery manu al If Qulon is connected to a battery with voltage larger then 14 V a High voltage warning and battery voltage would be shown on the screen In this case wait for the transition charger to floating charge mode or adjust the charger rectifi...

Page 7: ...thereafter when it is heavily charging However the influence of these currents on the readings is low and usually does not exceed 5 10 Readings obtained on a battery connected to a charger as a rule slightly are higher then the readings for the same battery with the open circuit 14 3 3 Qulon s screen during battery ca pacity estimation If battery capacity estimation succeeds the ca pacity value is...

Page 8: ...ide current group 16 Memory cells free total number of test results that can be saved in memory not more then 200 Time there is time indication at the most right part of the screen not shown in fig 2 3 3 2 Screen under save by command mode Figure 3 shows screen view for the case when save by command mode is chosen When this mode is used just received test result is not saved There is no battery na...

Page 9: ...arger 18 Message noise appears in two cases 1 If the noise is high enough to affect the result of capacity estimation the estimated capacity is shown in the screen and the noise message arrives in the voltage line In this case we recommend that you try again maybe several times without disconnecting Qulon from the battery by pressing the bottom button If a result is the same or you get result with...

Page 10: ...Saving of test result just received save by command mode B Erasing of test result just saved save by de fault mode C Closing current group next group opens automatically if current group is not Z 20 D Erasing all saved test results from memory The following memory operations are im possible A Saving test result to arbitrary chosen group or arbitrary chosen number in the current group B Erasing of ...

Page 11: ... alarm message shown the user can come into the main menu by pressing the upper button If save by default mode is on user will be ad vised to erase just received test result The user can agree and the result will be erased or disagree and the result will be kept in memory before entering menu Main menu has four items The view of main menu is shown on figure 4 22 Fig 4 Main menu Pressing lower butt...

Page 12: ...creen is for coefficient used for battery capacity estimation By pressing the upper button one can view the first test result of the next nonempty group Long press ing causes fast group scrolling After last nonempty group is reached result A 1 is shown By pressing lower button one can view the next result in the same group Long pressing causes fast result scrolling After last result of the group i...

Page 13: ...d and can be used for lead acid batteries diagnostics right after purchases By manufacture Qulon 12ns is adjus ted as follows Save mode by default Calibrating coefficient k 1 00 Language of messages English 26 Time GMT 3 All sounds are on The user can change factory adjustments It is recommended to study the present manual before any adjustment of Qulon 12ns 6 1 Options menu To change adjustments ...

Page 14: ...ust 28 received result press the lower button You will be asked for confirmation to save the result to a designated group and battery number inside group You will have 3 possibilities a to save the just made estimation to the memory group name and the battery number is shown b to return to the last screen fig 3 c to initiate the test repetition 6 3 Calibrate coefficient adjustment Warning Lead aci...

Page 15: ...z clock with a calendar pre programmed to 2049 for dating the test results Since the accuracy of the clock is limited but user can 30 check and adjust the time This procedure should also be carried out after battery replacement see section 7 To set the date and time you need to connect the device to the battery or optional adapter enter the main menu Figure 4 and follow to settings menu Figure 6 T...

Page 16: ...k as usual To replace the internal battery unplug Qulon 32 from the battery under test open the sliding cover on the rear panel and remove the battery from the holder After this insert the new battery into the holder with plus terminal up and close the rear lid Observe polarity when replacing battery Operation of the device with the open rear cover is not allowed Connect the device to a battery or...

Page 17: ...th Qulon see section 7 5 34 8 1 Coefficient from the producer s site Recommended coefficients for some battery types are placed in the Qulon producers Internet site www at systems ru They are mainly received by com paring the estimated battery capacity and measured discharge results Before use of such data check battery type for which coefficient is recommended If there is no data for your battery...

Page 18: ...evice set with stabilized current Em I T 1 where Em measured capacity A h I sta bilized discharge current amperes T discharge time hours 36 b for device set with current registration Em 0 T I t dt 2 where Em measured capacity A h I t cur rent changing in time amperes t time T full dis charge time hours Calculate calibration coefficient for your battery according to formula К Em E0 Coefficient erro...

Page 19: ...r your bat tery according to formula К En Emax where En nominal battery capacity or capacity less then nominal appointed in view of deterioration of batteries 38 8 5 Method of battery history The method of battery history is used during scheduled service of individual battery if carrying out the measured discharge is impossible or inconvenient The method is based on the assumption that in the be g...

Page 20: ...65 Mohm D Connect tester to the halves of the red positive clamp the tester should show resistance at least 2 MOhm or no contact E Connect the halves of clamps half crocodile clips to each other remove insulators placed before J Connect tester between the black and red clamps tester should show resistance to the order of 0 25 Mohm 40 10 Specifications 1 Working voltage range 9 V to 15 V 2 Recommen...

Page 21: ...proper pack aging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper mainten ance or unauthorized repair or modification The manufacturer is not being liable for any dir ect indirect incidental or consequential damages The manufacturer s total liability is limited to repai...

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