Měřící Energetické Aparáty
12
7/ MaintEnanCE rEqUirEMEnts
The repairs of the power supply MEg101.4 during the warranty period may only
be carried out by the manufacturer's skilled and trained personnel or by the manu-
facturer's service organizations. The contact to the manufacturer's service is indica-
ted on the website www.e-mega.cz.
The power supply MEg101.4 unit may not be exposed to chemicals.
The power supply MEg101.4 may be transported in its original container only.
The power supply MEg101.4 has no requirements for forced cooling.
When polluted, the power supply unit is carefully cleaned with a damp cloth wi-
thout using cleaning agents.
When the power supply MEg101.4 with external lead-acid accumulator is stored
for a long time or the input voltage is not connected, it is necessary to charge the
battery, preferably through the MEg101.4 power supply, after 1 year at the latest.
The minimum charging time for the 6 Ah accumulator is 48 hours. When an ex-
ternal lead-acid accumulator with a different capacity is connected, the charging
time will be modified proportionally.
It is recommended to perform preventive inspections after every 4 years of operation.
The preventive inspection includes:
• checking the unit for mechanical integrity,
• checking the level of output DC voltage,
• checking the output DC voltage blocking by connecting the power supply contacts
(
1
) and (
2
) with disconnected supply voltage,
• checking the capacity of the external lead-acid accumulator or preventive replace-
ment of the accumulator.
• When the power supply is used without the external accumulator connected, check
the function of the uninterruptible power supply from internal supercapacitors in
such a way that the power supply is connected for 10 minutes to the supply voltage
and then the time of uninterruptible power supply is checked according to loading
level, see Tab. 2.
