Introduction
Agilent 700 Series ICP Optical Emission Spectrometers User’s Guide
23
The instrument is equipped with a water flow sensor, which will stop
operation of the plasma and camera Peltier assembly if the cooling
water flow through the instrument drops below 1.1 L/min (0.3 gpm).
CAUTION
Always ensure the water cooling system is on before igniting the plasma.
Provided that the flow rate can be maintained above 1.1 L/min and
maximum supply pressure is below 310 kPa (45 psi), the cooling
water supply may be taken from an in-house domestic water system,
if local regulations permit.
An alternative is to install a recirculating water cooler system. The
system should provide cover for the reservoir to prevent evaporation
and stop contamination by dust or other impurities. Algaecide should
be used.
A recirculating water cooling system has the advantage of reducing
the volume of water that will be required over the life of the
instrument’s operation. Because of the limited size of the water
cooler’s reservoir, in the case of accidental damage, the amount of
water damage that can occur will also be limited.
Drain Vessel
The Agilent ICP-OES system needs a drain vessel for disposal of
excess fluids and vapors from the spraychamber. Suitable tubing is
supplied with the spectrometer for use with inorganic solvents. When
using organic solvents, different drain tubing that is suitable for the
solvent in use will be required.
A chemically inert container, not glass or of a narrow-necked style, to
hold a minimum of 2 liters (4 pints) of waste must be provided by the
user. It should be located underneath the sample compartment (or on
the right side of the instrument), where it is protected by the bench
and in full view of the operator.
