iCAP Customer Familiarisation Manual
Page 7 of 72
This document is part numbered 849940090071
Version 1.02
4 Instrument Hardware
The iCAP 7000 is designed to be constantly powered up and
the optical system continuously purged.
The instrument is powered via an on/off switch at the rear of the
left side.
4.1 LED indicators
On the rear right hand side of instrument there are row of LED’s which
indicate the status of the instrument.
Once the chiller has been turned on and has reached its set temperature
LED’s 2-7 should be on and led 1 and 8 should be flashing.
LED 9 indicates engineer fast purge has been selected and should be
turned off when analysing samples.
4.2 Preparing the System for Use
If the gas supplies have been switched off, the optical components should be purged and
for
at least one hour
before powering on the instrument. This is to stop ice damage to the
camera which is cooled to -45ºC. It will take at least 4-8 hours of normal purge for the iCAP
7400, or iCAP 7600 instruments, to measure aluminium at 167nm with the specified
stability and sensitivity.
Ideally the system should be purged constantly, under trickle purge this is a very small
gas flow.
If the instrument is switched off, allow
at least two hours
after restoring power to thermally
stabilise the instrument before the chiller is turned on.
With the plasma aspirated a blank sample for 15 minutes to allow the instrument to fully stabilise
before analysis. Warm up time can be set up in the get ready page of Qtegra.
