11
3 Operation
Fig. 3: Start screen
Display:
– Device type: Multitec 520
– User:
Frank Smith
City Council
Leakage Delivery
– Firmware version: V1.200
– Date and time
– Capacity disposable battery/
rechargeable battery
An overview of the measurable gases and corresponding alarm
thresholds is then briefly displayed.
Warning ExTox
Range
CH4
100 %LEL
CO2
5.00 VOL%
O2
25.0 VOL%
NH3
100 PPM
CO
500 PPM
H2S
100 PPM
AL1
AL2
STEL
LTEL
10
50
-
-
0.50 1.00
1.00
0.50
18.0 23.0
-
-
50
75
50
50
30
60
30
30
10
20
10
10
Display:
– Symbol: Warning ExTox
– Detectable gases
– Measuring range
– Alarm thresholds
– Capacity disposable battery/
rechargeable battery
Fig. 4: Overview of detectable gases and alarm thresholds
The device switches to measuring mode.
%LEL
VOL%
VOL%
PPM
PPM
PPM
0
0.04
20.9
0
0
0
CH4
CO2
O2
NH3
CO
H2S
Display:
– Current readings: zero when
device is switched on with fresh
air
Fig. 5: Measuring mode – display of current readings
The device is ready for use.
