5 – Installation and set-up
MultiExact Gas Analyser
☞
For 0-10ppm CO2 or 0-500ppm CO2, on initial start-up you must switch on the
electrical supply and leave the analyser to purge on low calibration gas for at
least 24 hours until the reading has stabilised before calibrating the analyser.
5.4
Switch on/set-up
☞
When the electrical supply to the analyser is switched on, the Alarm LED and
the Fault LED will both go on for 1 second to demonstrate that they are
functioning correctly, and will then go off again.
When you switch on the electrical supply to the analyser, a 'start-up screen' is first
displayed (see Section 4.2), then the measurement screen (Figure 3) is displayed.
When the measurement screen is displayed, you can set up the analyser as described
below.
5.4.1 Selecting the security level and password(s)
You can configure the analyser to provide any of three levels of security:
Security level
Function
Low
None of the options/screens are password protected *
Standard
Some of the options/screens are protected by a supervisor
password
High
Some of the options/screens are protected by a supervisor
password and some of the options/screens are protected by an
operator password
†
* Except for the 'change the password(s)' and 'select the security level' options/screens: see
notes below.
†
The supervisor password can also be used to access options/screens protected by the
operator password: see notes below.
☞
The 'change the password(s)' and 'select the security level' screens/options
are always protected by the supervisor password, regardless of the security
level selected. This is to ensure that unauthorised personnel cannot change
the security level and password(s) and so lock out the analyser from other
users.
☞
The supervisor password provides access to all password protected
options/screens. That is, if you have selected the 'high' security level and are
prompted to enter the operator password, you can also access the option/
screen by entering the supervisor password.
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