PerkinElmer AVIO 200, Hardware Manual

Page: 65 / 309

Preparing Your Laboratory
63
air intakes and exhausts that need to be unobstructed. The power is 2850 watts. It
requires a minimum of 45.7 cm (18 in.) on all sides for adequate ventilation. The
coolant hoses restrict the distance that the chiller can be placed away from the
instrument (hose length = 3.6 meters or approximately 12 feet).
Cooling Water Requirements
A water supply is required to dissipate heat from the oscillator.
Recirculating System
A recirculating system (chiller) must be used. The requirements for the chiller are:
• Cooling Capacity at 20 °C is 2000 watts
Temperature Stability ±1
o
C
Pump Rate 1 US gal/min. at 55 psi max (45 psi min).
Coolant: coolant fluid with corrosion inhibitor
A PolyScience Recirculating Chiller meets these requirements and is recommended
for the instrument. The PolyScience
®
WhisperCool TM chiller is available through
PerkinElmer in the following two configurations:
•
230V, 60 Hz (Part No. N0772046)
• 240V, 50 Hz (Part No. N0772045)
For detailed information on PolyScience
®
WhisperCool TM chiller electrical
requirements see the following section, Electrical Requirements .
Caution
Attention
If a longer hose distance is required for the chiller location, it may be necessary
to increase the hose inner diameter to accommodate the specification of
no
greater than 15 psig at the instrument water outlet. The hose inner diameter
should also be sized large enough to accommodate the specification of 45 to
80 psig at the water inlet. The hose also needs to be insulated sufficiently to
maintain a temperature at the instrument water inlet between 15 °C and 25 °C.
Si une distance de tuyau plus long est nécessaire pour la localisation de
refroidissement, il peut être nécessaire d'augmenter le diamètre intérieur du
tuyau pour recevoir le cahier des charges
ne dépassant pas 15 psig à la sortie
d'eau de l'appareil. Le diamètre intérieur du tuyau doit également être
dimensionnée assez grande pour recevoir la spécification de 45 à 80 psig à
l'entrée d'eau. Le tuyau doit également être suffisamment isolé pour maintenir
une température à l'entrée d'eau de l'instrument entre 15 ° C et 25 ° C.