PerkinElmer Frontier IR, User Manual

Page: 14 / 104

14 . Frontier IR Dual-Range Systems User's Guide
Location and Ventilation
WARNING
Make sure that the switch at the electrical supply inlet on the rear of the
instrument is not obstructed .
To allow for adequate cooling
Do not site the instrument near to room heating equipment, for example, central heating
radiators.
During operation, there should be a minimum gap of:
•
15 cm (6 inches) between any surface and the cooling louvers at the rear of the
instrument.
•
7 cm (3 inches) between the instrument and adjacent equipment.
•
45 cm (18 inches) between any surface and the top surface of the closed sample area
lid (to allow for the lid to be opened fully).
To allow any nitrogen used to disperse
WARNING
Do not site the instrument in a poorly ventilated area if nitrogen will be
used as a purge gas, or if liquid nitrogen will be used to cool a detector.
Oxygen depletion in an enclosed space does not trigger a gasping reflex,
and errors of judgment, confusion, or unconsciousness can occur in
seconds and without warning.
The spectrometer includes a coupling that enables the instrument body, and another
coupling that enables the sample compartment, to be purged using clean, dry, oil-free air or
nitrogen. The recommended flow rate to each connector is 10 l/min, and both the instrument
and the sample compartment vent to their surroundings.
If the instrument is fitted with an MCT detector, this is cooled using liquid nitrogen. A risk
assessment should include personal protection protocols, and proper actions in the event of
accidental spillage. 1 l (2 US pints) of liquid nitrogen evolves to 700 l (approximately
25 cubic feet) of nitrogen gas, and the cold vapor can pool at floor level.