176 Agilent Restricted Agilent 5110/5100 ICP-OES Service Manual
6 Customer Diagnostics and Problem Solving
Water Cooling Gauges
N2 Inlet Pressure
N2 Inlet Pressure Measures the (Optional) Purge Gas Input Pressure (If option installed. If not
installed will read same as Argon Inlet Pressure). If this is out of specification it could mean the
input Regulator needs adjusting at the Gas Supply.
Water Cooling Gauges
RF Water Flow
RF Water Flow measures flow of cooling water through RF cooling channels. RF Flow will only
occur if a Plasma is on or the RF Water Flow button is depressed (Prevents condensation build
up on RF electronics with plasma off). Low flow can be symptomatic of incorrect Chiller Set
Pressure, a water blockage, either in the instrument water channels or supply hose, a blocked
water filter (on right hand side of instrument), a faulty Water Solenoid /Electronics in the
instrument or low coolant level in the chiller or a chiller pump issue.
Camera Water Flow
Camera Water Flow measures flow of cooling water through the Camera cooling channels
(Required to extract heat from the camera to allow the camera to operate at -40°C.) Low flow
can be symptomatic of incorrect Chiller Set Pressure, a water blockage, either in the instrument
water channels or supply hose, a blocked water filter (on right hand side of instrument) or low
coolant level in the chiller or a chiller pump issue.
Water Inlet (°C)
Water Inlet Temperature gauge measures temperature of incoming cooling water from Chiller.
Out of specification water temperature can be caused by incorrect temperature set point on
Water Chiller, a blockage of cooling ducts on chiller, or low water flow.
Instrument (°C)
Instrument Temperature Gauge measures the temperature of the instrument (thermocouple
mounted inside instrument control electronics). Temperature outside specification could be as
a result of Laboratory Temperature incorrectly set, Air Cooling Failure of Instrument, or Air
cooling blockage.
Air Flow
Air Flow Gauge measures relative air flow cooling of the instrument from the inlet (on top of
instrument) through to the outlet (Chimney). Low Air Flow could be as a result of a blockage of
inlet duct or outlet or a failure of the Cooling fan or Flow sensor.
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