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Task 8.3 – Insulation resistance measurement
OPERATING INSTRUCTION AND TECHNICAL REQUIREMENTS (TR) INSTRUCTIONS / EVIDENCE WHEN DEVIATIONS FROM TR
CAUTION
Read the safety instructions for the High voltage – Insulation
resistance tester.
1. Measure the insulation resistance with a MΩ-meter at 250 V DC
between the + pin of the battery connector and the
battery case.
If the insulation resistance is below 0.5 MΩ subject the
battery to battery cleaning Task 8.6.
2. Record the values in the battery log book.
Task 8.4 – Check of electrolyte density
Number of pages: 1 Page 1
OPERATING INSTRUCTION AND TECHNICAL REQUIREMENTS (TR) INSTRUCTIONS / EVIDENCE WHEN DEVIATIONS FROM TR
CAUTION
Wear appropriate PPE (personal protective equipment).
Attention
Avoid spilling of electrolyte into the battery during the
measurements.
Do not change cells electrolyte.
NOTE
Any measurement of electrolyte density directly after an adjustment
of cells electrolyte level with water may result in values below the
requirement.
Always measure the electrolyte density after the charge following
the electrolyte adjustment on fully charged cells.
1. 15 minutes after the recharge, measure the temperature with
a thermometer and the density of the electrolyte with a
hydrometer or an electronic density meter on 3 random selected
cells out of a 20 cells battery.
Requirement: 1.30 kg/L ≥ Density: ≥ 1.26kg/L.
If density values are below the required value, measure the
density of all cells and replace according to Task 10.7.
If the density are above 1.3 kg/L.
Check whether electrolyte was adjusted correctly before.
Check whether electrolyte temperature is considerably below
20°C.
Check whether battery was charged.
2. Continue in Task 7.3 at step 30.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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