If the measured gas goes outside the range of the alarm settings
then an audible alarm and a red flashing visual alarm will be
generated. In addition, the relevant indicator on the liquid crystal
display will flash. The graph is then replaced by a printout of each
individual measurement together with a time stamp and an alarm
indicator as shown below:
12/04/95
NO calibration due : 01/01/96
NO2 calibration due : 07/01/96
NO upper alarm
NO lower alarm
NO2 upper alarm
Patient
Hospital
Technician
5
1715
1730
1741
Alarm NO = 22.3
1741
Alarm NO = 22.4
1741
Alarm NO = 23.1
1742
Alarm NO = 23.0
If the NO measurement exceeds 100ppm or NO
the external alarm, accessible at the rear of the instrument, is
16:14
: 15
: 5
: 4
:...............................
:...............................
:...............................
NO
15
0
NO2
NO2 = 1.85
NO2 = 1.95
NO2 = 2.10
NO2 = 1.90
2
14
4
exceeds 9ppm then