LumaSense Technologies INNOVA 1412i - Manual (Page 62)

Chapter 5
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BE6025-15 1412i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 62 of 202
5.3 Starting-up or Restarting the Monitor
5.3.1 Introduction
When the monitor is started up in the normal way, that is, by
switching on the AC Mains power-switch on the back panel, the
monitor responds by performing a partial reset. A partial reset is
also performed if during operation the monitor is switched off and is
re-started in any of the following ways:
· If the Monitor stops operating due to an AC mains power failure
and then re-starts itself (automatically) when power is restored to
it;
· If the user stops operating the Monitor by switching it off using
the AC mains power switch on the back panel, and then re-starts
it by using the same switch:
Users can also “partially reset” the Monitor by using the RESET
push-button on the front panel (see section 5.2.3 ).
5.3.2 A Partial Reset of the Monitor
When the Monitor performs a partial reset a number of self-tests
are automatically performed. The types of tests performed depend
only upon the time, which has elapsed since the Monitor was last
switched on.
· If more than 10 min. have elapsed since the Monitor was
switched on it will perform the software, data-integrity, and
hardware tests when switched on again.
· If less than 10 min. have elapsed since the Monitor was switched
on it will perform only the data-integrity tests when switched on
again.
There are essentially 3 types of self-tests which can be performed
during a “partial reset” – a software test, a data-integrity test and
a hardware test.
It takes the Monitor only a few seconds to perform the data-
integrity tests; and about 3 minutes to perform both the software
and hardware test. The different tests are explained below.
Software test
This test checks the information in the Monitor’s software (ROM –
Read Only Memory.)
Data-integrity test
This test checks the integrity of the data stored in the Monitor’s
Source Memory (i.e. its EEPROM – Electrically Erasable