Filter
Top Products
Pressing the leftmost button on the display will toggle the HI Alarm on and off. Press
ENTR to proceed to the next prompt. If the HI-HI Alarm is set to ON then the next
prompt will show:
HI-HI ALARM LIMIT:0.300 PPM
Edit the HI-HI alarm value and press ENTR to store the value. The next prompt is:
ANA. OUT RANGE: 1.000 PPM
This is the analog output range setting. This is the concentration level that will
correspond to a full scale voltage or current(4-20mA) output at the instrument’s analog
output on the rear panel. Edit this value and press ENTR. The next prompt is:
MONITOR DUR.: 10.00 Minutes
This prompt sets the monitoring duration for a particular stream. The monitoring
duration includes a 30-second purge cycle at the beginning of each measurement. During
the purge cycle, the monitor takes no readings. Therefore, for a monitoring duration of
10 minutes, the instrument will purge for 30 seconds and then take readings for the next 9
minutes, 30 seconds before switching to the next stream in the sequence.
Pressing ENTR takes you back to the main stream configuration menu shown in Figure
3.3. You may now scroll to another stream and repeat the steps shown above or press
EXIT to exit back to the previous menu.
3.3 Setting the Concentration Units (UNIT)
To set the concentration units, press UNIT from the setup menu. The default
concentration units are PPM(Parts per Million). Table 3.1 below lists the units available.
Software Abbreviation Unit
PPB Parts per Billion by Volume
PPHM Parts per Hundred Million by Volume
PPM Parts per Million by Volume
PPMW Parts per Million by Weight
UGM
Micrograms per Cubic Meter(g/m
3
)
MGM Milligrams per Cubic Meter(mg/ m
3
)
TABLE 3.1 CONCENTRATION UNITS
P/N 02395D1 Teledyne API Model 450 O
3
Monitor Instruction Manual - Page 42