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First National Battery RAYLITE M-SOLAR, Installation And Maintenance Instructions Manual

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First National Battery RAYLITE M-SOLAR Installation And Maintenance Instructions Manual Download Page 12

 
 

BATTERY WATER

 

Water used for topping up batteries must comply with the following specifications: 
• It shall be clear, colourless and odourless. 
• The pH shall be between 5 and 7. 
• Impurities shall not exceed the limits below. 
• It shall, wherever possible, be stored in a glass or plastic container. 
• Conductivity shall be less than 30 μS/cm 
 

IMPURITY 

MILLIGRAMS 
PER LITRE  

DISSOLVED SOLIDS 

25 

ARSENIC (As) 

1 

CHLORIDE (Cl) 

5 

COPPER (Cu) 

0.1 

IRON (Fe) 

0.2 

MANGANESE (Mn) 

0.1 

NITROGEN (as NH

4

) 

5 

NITROGEN (as NO

3

) 

5 

HEAVY METALS (as Pb) 

5 

KMn0

4  

REDUCING SUBSTANCES

*

 

10 

 
*As determined by F.N.B. test method LTM - 31 -01 
 

TROUBLE SHOOTING 

 

The following notes are provided to assist in identifying symptoms and causes of 
possible system problems. 
 

SYMPTOMS  

 

 

CAUSES 

 

 

SOLUTIONS 

 
Low or irregular voltages   

Undercharge. Faulty           Reset regulator  

and/or specific gravity. 

 

regulator settings.    

settings. 

 

 

 

. 

 

 

 
 

 

 

 

 

Battery requires 

 

Apply equalise charge. 

 

 

 

 

 

equalise charge. 

 
 

 

 

 

 

Undercharge. 

 

Install more panels or 

 

 

 

 

 

Insufficient solar 

 

reduce load. 

 

 

 

 

 

panels to recharge. 

 

Overdischarge. System  

Reduce load or   

undersized for the load. 

increase capacity. 

 

Faulty cell/s.   

 

Replace cell/s unless  
battery is near end of 
life. 

 

Summary of Contents for RAYLITE M-SOLAR

Page 1: ...RAYLITE M SOLAR BATTERIES INSTALLATION AND MAINTENANCE INSTRUCTIONS ...

Page 2: ...etween cells keep the cell tops clean and mop up any spillage ELECTRIC SHOCK The battery remains live at all times even if isolated and discharged The threshold voltage for fatal electric shock is lower with Direct Current than with alternating Current CORROSIVE ACID Battery electrolyte contains dilute sulphuric acid This is highly corrosive and can cause severe skin burns If spilt or splashed ont...

Page 3: ...charge over a few days when the battery is more deeply discharged due to consecutive days of poor weather PREPARING THE BATTERY FOR SERVICE UNPACKING Clean off any packing material from the cells and trays Examine carefully to see if there has been any damage in transit Check that all components have been supplied Cells may be supplied loose or pre assembled in 4 volt 2 cell or 6 volt 3cell trays ...

Page 4: ...ential that cells be strapped together so as to support the internal plates of the cells while in operation This should be done as follows 1 Wooden boards 18mm thick should be used as support when strapping the cells 2 Note In all cases the wooden boards must be fitted against the 158mm width face of the cells or 198mm in case of DIN cells See Figure 3 below 3 It is not necessary to place boards a...

Page 5: ...umber 1 Connect the take off cables one at a time terminating both ends of the first cable before connecting the second When connecting the second take off connect at the battery first before connecting to the charger side This minimises the chance of creating a spark close to the battery Fit the float level indicators Check that the indicators move freely and are at the full level If the levels a...

Page 6: ...y more than 0 10 Volt from the lowest to the highest voltage ii The specific gravities at completion of charge vary by more than 0 030 or do not rise to within 0 030 of the normal recommended top of charge value Equalising implies charging at approximately 3 5 of the 100 hour capacity At this rate of charge voltages of 2 60 to 2 75Vpc should be achieved when new at temperatures of 20 25 degrees C ...

Page 7: ...vity drops in proportion to the depth of discharge From a fully charged condition the specific gravity will drop from 1 280 to approximately 1 100 The life of the battery is very dependent on the depth of discharge DOD that it is subjected to on a daily basis When used in a purely standby application where there are virtually no discharges the expected life is 10 to 12 years When cycling it would ...

Page 8: ... has been released from the plates remains at the bottom of the cell This results in weak acid at the top of the cell and strong acid at the bottom This is called stratification and can cause deterioration of the plates To prevent stratification damage it is recommended that the battery be given an equalisation charge every 20 days This mixes the electrolyte and brings weaker cells into line with ...

Page 9: ... ensure the charging system is operating within specified limits and reset if necessary Check that the level indicators move freely and that the electrolyte levels are between the full and low marks If levels are low top up with distilled or deionised water see Specification for Purity of Topping up Water Inspect the cells for any apparent signs of failure or problems requiring immediate repair Cl...

Page 10: ...r This works on the principle that a float will sink further into a liquid of low specific gravity than of high specific gravity because the latter is denser and provides greater support USING THE HYDROMETER From one of the cells draw acid into the barrel until the hydrometer float moves freely Now read the specific gravity at the point where the scale emerges from the acid Afterwards make sure th...

Page 11: ... 275 at 15oC corrected to 25oC gives 1 275 0 007 1 268 ADJUSTMENT OF ELECTROLYTE SPECIFIC GRAVITY Charge the battery at the equalising rate until specific gravities have been constant over three successive readings taken at hourly intervals Should the specific gravity be high remove a little of the electrolyte and replace with an equal volume of distilled or deionised water Add a small amount at a...

Page 12: ...H4 5 NITROGEN as NO3 5 HEAVY METALS as Pb 5 KMn04 REDUCING SUBSTANCES 10 As determined by F N B test method LTM 31 01 TROUBLE SHOOTING The following notes are provided to assist in identifying symptoms and causes of possible system problems SYMPTOMS CAUSES SOLUTIONS Low or irregular voltages Undercharge Faulty Reset regulator and or specific gravity regulator settings settings Battery requires App...

Page 13: ...rge Faulty Reset regulator regulator settings settings Poor ventilation or Improve ventilation batteries in sun re site to shade Excessive water consumption On one cell suspect Confirm and re lace leaking cell container or faulty cell On complete battery Reset regulator overcharge settings Reduce equalise charge Growth of positive post Early in life overcharge Reset regulator settings Reduce equal...

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