58 Agilent Restricted Agilent 5110/5100 ICP-OES Service Manual
3 General Information
Water Control
Water Control
The Agilent 5110 water management system is required to cool the RF work coil, axial pre optics
cone, RF oscillator module and camera assembly. The control is managed through the water
control module which is located next to the gas control system on the right hand side of the
instrument.
The water control module’s inputs and outputs are controlled directly from the instrument
control board (non SLIP) as such any input output failures that are not transducer failures will
most likely trace back to the control board itself.
The RF water cooling and Camera water cooling circuits are connected in parallel but have
separate flow sensing as added protection in the event that one circuit should become blocked.
Water temperature is monitored on both incoming and outgoing lines. The RF cooling circuit is
switched via a solenoid and only activates when a plasma is on to prevent coil condensation
when there is no plasma. The instrument also monitors water flow direction in the advent of
misconnection.
~1400 Watts of thermal energy is dissipated through the water channels and the water chiller
used must be capable of transferring this heat energy from the instrument. Water flow and
water temperature are monitored using sensors built into the water manifold and in line with the
internal tubing.
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