Cooling Considerations; Connecting To The 5700A Calibrator - Fluke 5725A Getting Started

5725A
Amplifier

Cooling Considerations

Damage caused by overheating may occur if
the area around the air intake is restricted,
the intake air is too warm, or the fan filter
becomes clogged.
Accuracy and dependability of all internal parts of the
5725A are enhanced by maintaining the coolest possible
internal temperature. By observing the following rules you
can lengthen the life of the 5725A:
•
The area around the fan filter must be at least 3
inches from nearby walls or rack enclosures.
•
Exhaust perforations on the sides of the 5725A must
be clear of obstructions. Most of the heat exits from
the side vents near the front.
•
Air entering the instrument must be room
temperature. Make sure that exhaust from another
instrument is not directed into the fan inlet.
•
Clean the fan filter every 30 days, or more frequently
if the 5725A is operated in a dusty environment.
(Instructions for cleaning the fan filter are in
Chapter 6.)
12
Caution

Connecting to the 5700A Calibrator

Proceed as follows to connect the 5725A to the 5700A:
1. Turn the power off for both instruments and
disconnect their line power cords.
2. Connect either end of the interface cable to the
5725A connector labeled 5700A. Dress the cable
only as Figure 3 shows. The figure shows how to
dress the cable in installation arrangements with the
5725A on top or bottom.
3. Connect the other end to the 5700A connector
labeled 5725A.
The 5700A/5725A interface cable provides all the digital
and analog control signals for the amplifier, and it
provides conductors to route amplified voltage to the
5700A OUTPUT binding posts.