Water Chiller Settings; Check Interlocks - Thermo Scientific iCAP 7000 Series Manual

iCAP 7000 Series ICP-OES Spectrometer
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8.1 Water chiller settings

♦
Insure purge has been on for at least 30 minutes
♦
Switch on chiller and set temperature to 5°C below the ambient temperature, but not
above 25°C.
♦
The water flow rate should be between 5 to 6 l/min when the solenoid valve is open
(plasma on) or open using Manufacturing S/W. (This will typically equate to 30 – 60psi at
the chiller but does vary with make). With the valve shut the flow should be at least 2.5
l/min.
♦
Use a water flow meter to help check this figure – a digital meter is available to engineers
from Cambridge, part no.8423 155 50661. Alternatively the iCAP water flow sensor pulses
can be measured and should be above 55Hz for the open valve and 25Hz for the closed
valve.
Note: If the pressure shows about 20psi at this stage, the water connections may be connected
the wrong way round.

8.2 Check Interlocks

Check the interlocks are all green and take
appropriate action if any are RED (detailed
in the iCAP Diagnostic Manual or at the
end of the Installation Procedure).
Note – to reset the Drain Flow sensor
change the pump and nebulizer flow to
force a hardware response.
Using the Dashboard Page, click on the
"red ringed" Get ready icon.
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All interlocks green
Version 4301 460 00632
Installation Details
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