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Figure 4
. Battery Installation and Removal.
1.4 Battery Installation and Removal
The battery must be a 9 Volt alkaline type.
(Examples are: NEDA 1604A, IEC 6LF22, or IEC 6LR61)
Replace the battery as follows (see Figure 4):
1.)
Remove the battery cover.
2.)
Lift the non-terminal end of the battery out of the battery compartment.
3.)
Remove the battery.
4.)
Notice the battery orientation drawing on the battery cover. Be sure that the battery is properly oriented with
respect to the battery compartment terminals.
5.)
Angle the non-terminal end of the battery into the battery compartment, and press it down into the holder.
6.)
Install the battery cover.
An internal battery powers the clock and memory. When this battery's voltage gets low, data memory and setup will not be
retained when a 9V battery is not in the dosimeter. The memory only draws current from this battery when a 9V battery is not in
the unit. Contact the factory or a Quest service center for replacement.
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Figure 5
Q-300 Display
2. ABOUT THE METER
2.1 The Display
The LCD display provides the user with the selected measurement and the measurement parameters (A or C weighting,
FAST or SLOW response). Instrument status such as low battery ( LOBAT ), RUN , PAUSE , and Overload ( OL ) is also
displayed.
OL
- Overload indicator lights when the sound level exceeds the measurement range of the instrument. While in RUN, this
indicator stays lit until the dosimeter is RESET.
SLOW
or
FAST
- indicates the time response of the measurement being viewed.
C
, or
A
- indicates the frequency weighting of the measurement being viewed.
RUN
or
PAUSE
- indicates the operating status of the instrument.
LOBAT
- when not lit, indicates at least 8 hours of battery life remaining.