INSTALLATION
2-6
Connecting to a DC supply and fitting batteries
If the Service Monitor is to be used from a DC voltage source it should be connected using the
supplied DC connecting lead, part no. 43138/755 The polarity of the connections must be correct,
RED to POSITIVE, BLACK to NEGATIVE, and the DC input voltage selector set to the
appropriate range for the supply.
The negative connection of the DC supply is directly connected to the chassis of the Service
Monitor and therefore to all screen connections of input and output connectors. Note however,
that the AF ports are isolated under some operating conditions.
The Service Monitor will function from any supply with a voltage within the range given under
Power requirements above, but must be capable of delivering a current in the order of 9 amps at
the lowest voltage.
Ensure that the supply lead connections are sound and cannot short together.
If the Test Set has been supplied with a battery pack, this will have been fitted before shipping.
The battery pack should not require any attention over its expected life. If you do suspect a
problem with the battery pack contact the nearest Aeroflex regional office.
A fully charged battery pack will power the Service Monitor for approximately 60 minutes
between charges. The Service Monitor will recharge the battery in approximately 4 hours if
connected to a mains supply and the mains power switch put to the ‘CHARGE’ position.
Use only the battery pack specified by Aeroflex.
RF and AF connections
All RF and AF connections should made using good quality connectors correctly fitted to
appropriate cable. All connectors should be locked to the Service Monitor using the bayonet or
threaded locking rings. Do not use leads that have damaged connectors or cable as this can cause
poor performance and might damage the Service Monitor.
RF leakage levels in a test set-up can be aggravated by the use of poor quality connector leads. A
double screened lead, 1 meter in length and terminated with male BNC connectors,
part no. 43137/052 and a 1 meter, 'N type' male to 'N type' male, connector lead 54311/095 are
both available from Aeroflex sales offices.
WARNING
Hot Surfaces
Take care when touching the RF Input Type N connector after the application of high levels of
continuous power. If 50 W is exceeded for a prolonged period, the temperature of the connector
can become excessive.
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