Mega MEg 30, Руководство пользователя

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4.10 Reference ambient conditions
Ambient temperature: 20°C ± 2°C
Relative humidity: 40% to 60%
Air pressure: 86 kPa to 105 kPa
Without hoarfrost, bedewing, rain and sunshine
4.11 Ambient conditions
Operating temperature: –20°C to +60°C
Operation: in indoor space
Relative humidity: 20% to 90%
Altitude: up to 2000 m
Operating position: arbitrary
Protection: IP40
Category of measurement: IV (ČSN EN 61010-1)
Degree of contamination: 2
Protection under condition of one failure is ensured by protective impedance
with a combination of component parts.
4.12 Supply
Supply from any measuring input U1, U2, U3
Range of input power:
5 VA
Back-up supply: battery SANYO N-50AAA L 1×5,
in average during up to five
intervals of 1 minute at reference
ambient conditions
Replacement of the battery shall be carried out by the manufacturer basing on
order.
Mean time between battery replacements makes 2 years.
4.13 External connection
Terminals S1, S2 of signal SYNC
U0: 0 V to 5 V DC and AC
U1: 20 V to 200 V DC and AC
The terminals are galvanicly separated by an optoelectronic element with
insulation strength 5 kV
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PQ monitor – MEg30, MEg31, MEg32, MEg33