Pro CO Carbon Monoxide Analyzer
11
www.nuvair.com
The Pro CO
TM
can be used to monitor an enclosed space or to analyze a regulated gas
sample flow, the contents of a gas cylinder, or the flow from a regulator:
•
If monitoring an enclosed space, simply remove the Flow Adapter Cap to expose the
Sensor face to the atmosphere and allow the display reading to stabilize.
•
If analyzing a gas flow, the Sample Flow Method is the preferred method. The flow rate
must equal .5 to 3 L/min at atmospheric pressure. To produce this flow, a Flow Restrictor
and Regulator may be required. Contact Nuvair if you need assistance.
4.1. Programming Procedures
Keep the Prog button pressed for more than two seconds and then release the button.
“Pr” should display for two seconds and then the display will change to AL 1 and
alternate with the 3 digit set value.
It is possible to program:
o
AL 1
First alarm point expressed in ppm of Carbon Monoxide concentration
o
AL 2
Second alarm point expressed in ppm of Carbon Monoxide concentration
o
FSC
Value expressed in ppm of Carbon Monoxide concentration corresponding
to the current output full scale value (20mA). 4mA always correspond to zero
ppm CO concentration.
o
nA
Conversion value of Carbon Monoxide sensor
o
Fct
Gain factor
o
CAL
CO concentration in the calibration test gas to be used
At the end of the programming procedure the display will show “End” and the
instrument will display the Carbon Monoxide content in the gas mix or “000” if not
attached to a CO gas mix.
