TECHNICAL INFORMATION
29
87-900-120-01 (A)
The analog output on pins 1 and 6 provides an analog
voltage proportional to the Helium concentration. Its
output is from -1.25 V to +5 V according to the following
values:
−
in HS mode:
-1,25 V = -18 ppm
+5V = 10
5
ppm
−
in LS mode:
-1.25 V = -1800 ppm
+4 V = 10
6
ppm
with a resolution of 0.1 V.
For more details see the following figure.
NOTE
The analog output voltage is always related to the
measured concentration in ppm. The information does
not change if a different measurement unit is selected
from the front panel.
Analog Output Value Diagram
