Instruction Manual Dräger MSI EM2 EM200plus-i
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17.3 Operation references
17.3.1 Operation references - symbols
On the display symbols may indicate following activated functions:
Symbol 1
charge of battery
Symbol 2
battery is charging
Symbol 3
error
Symbol 4
internal pump is working
Symbol 5
USB connection
Symbol 6
Bluetooth connection
Symbol 7
measuring range extension
17.3.2 Electric power supply
The instrument possesses a rechargeable nickel metal hydride battery. In principle only the
provided charger may be used for charging the instrument. The sensors of the instrument
need continuous power supply (as well if the instrument is switched off). Please charge the
instrument timely. Charge the measuring device after every use.
The charge condition of the battery is checked by the instrument and displayed. Becomes
the voltage and the capacity of the battery too low, this is indicated by red flashing of a LED.
The battery should be charged immediately.
The charging lasts 1 to 4 hours, depending on the charge condition. During charging the
LED on top of the instrument is lighted red. At the beginning of the charging a green flashing
of the LED indicates that battery and charging system are checked. After finishing of the
charging the red light of the LED changes to green. That means the battery gets only con-
servation charge.
If the charging circuit has an error detected, the LED will flash green and red together.
Please note, that the measuring instrument may be charged only at ambient temperatures
b 5 °C and + 35 °C. Do not charge or store the instrument in the sun.
Change battery only with an original MSI spare part.
If the charging has been forgotten, the instrument will be shut off automatically. If it is im-
possible to switch on the instrument, because of low voltage, plug in the charger and switch
on the instrument again!!
