L3 NARDA PMM 9010 User Manual page 20

2.5.3 Indication of the
battery status on
the screen and with
PW led
2.6 Environment
2-2 Installation
The charge status of the battery is displayed on the top right-hand corner of
the screen in most of the receiver modes. The symbol of a small battery will
be filled up proportionally to the status of the battery charge.
When the battery is not under charge, the actual voltage value is displayed
under the symbol and the length of the black bar filling the symbol indicates
the available autonomy still remaining.
When the battery charger is connected to the PMM 9010 the indication
"PWR" appears just below to the battery icon and the front panel PW led
becomes yellow if the receiver is switched on and red if the receiver is off.
The battery charging is suspended or ends automatically when one of the
following events occurs:
- the full capacity of the battery has been achieved,
- the internal temperature of the battery is higher then a preset safety
threshold,
- the charging time limit has been exceeded.
Both during recharging and when charge is completed PMM 9010 is ready
for use.
The PW led on the front panel blinks green when the battery voltage
drops below 7,0V to warn the Operator that the instrument is running
out of battery.
To prevent any damage to the battery, the PMM 9010 automatically
switches off when the battery voltage falls below 6,5V.
In order to keep the batteries fully functional, it is crucial to have a
complete recharge before storing them for periods longer than 4
months. Therefore, it is suggested to recharge the batteries at least
every 4 months even when the receiver has not been used.
The operating environment of the receiver is specified to be within the
following limits:
• Temperature
• Humidity
• Altitude
The instrument should be stored and shipped in a clean, dry environment
which is specified to be within the following limitations:
• Temperature
• Humidity
• Altitude
+0° to +40° C
< 90% relative
4000 meters
-40° to + 50° C
< 95% relative
15.000 meters