Anritsu MS8608A, Operation Manual, Page: 49 / 338

Section 2 Preparations Before Use
2-3
Installation Site and Environmental Conditions
Locations to be avoided
The MS8608A/MS8609A Digital Mobile Radio Transmitter Tester operates normally
at temperatures from 0 to 50
°
C and below RH 85%. (When Option 05: Rubidium
Reference Oscillator is mounted, its ambient temperature range becomes 0 to 45˚C.)
However, for the best performance, the following locations should be avoided.
• Where there is severe vibration
• Where the humidity is high
• Where the equipment will be exposed direct sunlight
• Where the equipment will be exposed active gases
In addition to meeting the above conditions, to insure long-term trouble-free operation,
the equipment should be used at room temperature and in a location where the power
supply voltage does not fluctuate greatly.
CAUTION
If the MS8608A/MS8609A is used at normal temperatures
after it has been used or stored for a long time at low tem-
peratures, there is a risk of short-circuiting caused by con-
densation. To prevent this risk, do not turn the spectrum
analyzer on until it has been allowed to dry out sufficiently.
Fan clearance
To suppress any internal temperature increase, the spectrum analyzer has a fan on the
rear panel as shown in the diagram below. Leave a gap of at least 10 cm between the
rear panel and the wall, nearby equipment or obstructions so that fan ventilation is not
blocked.
Internal fan
10 cm min