Crowcon Gasman User Manual page 8

Unpacking
Warning: rechargeable units
Do not attempt to recharge the rechargeable battery with any other
charger other than the Crowcon charger supplied with this unit. Failure
to comply could invalidate safety certification and may result in perma-
nent damage to the unit.
Non-rechargeable units.
Gasman uses a CR2 battery which can be easily field replaced. Ensure
only the correct types of battery are fitted to maintain compliance with
certification.
Gasman IR CO
The Gasman IR CO
with an infrared gas sensor for CO
not designed or certified for use in a hazardous area, and the safety cer-
tification data in Section X is non applicable. Operation and maintenance
of the Gasman IR CO
but with the following points to note.
CO is present in ambient air at a background concentration of just under 400ppm. In any

enclosed environment the ambient CO
if the room is poorly ventilated concentrations well in excess of 000ppm (0.%) can occur. CO
levels in the outdoor air will also be enhanced by any emitted CO
boiler flues venting to atmosphere so it is normal to see fluctuating levels of CO
whether indoors or outside.

Personal Detector
2
personal detector uses a newly developed i-module
2
is essentially the same as for other Gasman units
2
concentration will increase as a result of respiration and

detection. This version of Gasman is
2
e.g. from vehicle exhausts or

Gasman

on the display