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3.2.2.4 Vacuum Indicator
This green LED bargraph displays
the actual vacuum level during
operation of the LSU.
Each fully lit segment represents
50 mmHg. If a segment has a
weak light, this represents
25 mmHg (e.g 125 mmHg
means 2 fully lit and 1 weakly
lit segments).
3.2.2.5 Battery Status Indicator
This green LED bargraph has 3 functions:
- Indicates remaining battery capacity
during operation from internal battery
- Indicates approx. achieved battery
capacity during charging
- Indicates which test is currently
in progress during device test
During operation from internal battery:
- indicates approx. remaining battery capacity.
During operation from internal battery and dur-
ing charging the displayed values must only be
used as indications.
Several parameters can influence them e.g.
device settings, state of battery, temperature etc.
Note:
Immediately after turning the LSU ON and
immediately after switching from external power to
internal battery operation, all 4 LED's will flash for
5 seconds before the remaining battery capacity
is displayed.
CAPACITY for a
new battery stored in
room temperature
OUTPUT
> 75 %
4 LEDs lit.
50 - 75%
3 LEDs lit.
25 - 50%
2 LEDs lit.
< 25%
1 LED lit.
Battery Low; (min. 2 minutes
of operation left based
on 500+ mmHg/free flow).
1 LED flashes.
During charging: indicates approx. achieved
battery capacity.
CAPACITY OUTPUT*
< 75%
The LED's will be
lit sequentially.
75 - 80%
3 LED's lit and
4th flashing.
> 80%
4 LED's lit.
*Note:
If no battery is installed, the battery status indicator
will be fully lit for approx. 5 sec. until it is turned off.
During the Device Test: indicates which step of
the test is currently in progress or which corre-
sponding test result is being displayed:
LED 1 (lower LED) lit = STEP 1,
LED 2 lit = STEP 2 etc.
3.2.3 TEST-Button
This button allows you to run a 4-step
user initiated Device Test program to identify
whether the LSU is operating satisfactorily or if it
needs service (see section 7).
mmHg 80 120 200 350
500
kPa
11
16
27
47
67
mBar
107
160
267
467
667