correctly on your computer before uploading
logged data.
SetPortable
and
Logmanager
software is
supplied with its own manual, Crowcon stock
number M07-119.
12.1 Hardware Interface
Connection to the PC is via the charger unit
which has a computer ‘D’ socket at the rear.
•
Use the Crowcon supplied cable to connect
between the charger and the PC serial port.
Check the labelling of this lead as it only
works one way round.
•
Ensure power is connected to the charger
unit.
•
The instrument should be switched on if it is
to be zeroed or calibrated.
13. Sensor Limitations
Gasman II uses a catalytic flammable gas sensor
which operates in the presence of oxygen. Prior to
entering a confined space, it is advisable to check
oxygen concentration in addition to combustible
gas concentration. Oxygen levels below 10% will
reduce a flammable gas reading.
The performance of catalytic sensors may be
permanently degraded if exposed to silicones,
sulphur containing gases (such as H
2
S), lead or
chlorine compounds (including chlorinated
hydrocarbons).
The unit is not suitable for use in ambient
temperatures above 50°C (122°F) and electro-
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