Ametek Land LANCOM 4 - Page 54

Portable Flue Gas Analyser
User Guide
Lancom 4
11 - 2
Low battery warning
When the battery charge is low, the low battery warning LED will
light. The power supply should be connected as soon as possible.
When the batteries are fully discharged, the instrument will switch
oautomaticallyandwithoutwarningtoprotectthebatteries.
If the batteries are fully discharged the standby power to the sensors
isturnedo,soitisimportanttonotethatthesensorswillachieve
best accuracy two hours after the battery charging is started.
Battery charging
The battery charging is started when the
power supply is connected.
The intelligent battery charger condition is
indicated by the front panel LED. The LED
indicates the following conditions:
• Whenthepowersupplyisrst
connected,theLEDwillash,indicating
that the charger is determining the state
of the battery. This can take up to a few
minutes.
• The LED then lights fully. This indicates
the charger is in boost charge condition.
This condition will last up to 5 hours
depending on the initial state of the
battery.
• When the battery is charged, the LED
goes out. The battery is now maintained
in standby charge, which can be applied
indenitely.
Battery charge troubleshooting
IfthechargeLEDdoesnotinitiallyashwhenthepowersupplyis
connected:
Cause Action
There is a problem with the power sup-
ply
Check the mains lead, fuse etc.
The temperature is outside the charge
range of 0 to 40 Celsius
Move the instrument to a suitable loca-
tion
The battery is disconnected Reconnect battery
The battery fuse has blown Replace fuse (there is one spare fuse
on the PCB). If the second fuse blows,
contact LAND Technical Support
The battery has over-discharged and/or
has failed
Replace batteries
If the batteries fail to charge, the instrument can still be operated on its
power supply.
Power supply connection