B&K Precision 2640 - Manual - Manual (Page 23)

23
Before Power ON
How to insert and charge the AA Type Ni-MH rechargeable batteries?
For the insertion of batteries, please release the screw on the battery
cover on the bottom of the instrument. And put in AA Type Ni-MH
rechargeable batteries (Total 6 PCS).
To charge the batteries after inserting batteries, connect the DC cable
plug of SMPS type adaptor to DC jack of system (DC output: 12V).
Battery charging will begin after DC cable in connected.
At this time, if user turns on the power of system, the battery icon on
the display window is displayed and blinking. And if the charging of
batteries is finished, the blanking of battery icon will stop and only be
displayed.
To measure the input level of RF signal, connect the antenna or
coaxial cable to N-type connector of system (marked ANT)
 Input Connector for RF Signal Level:
User can connect the antenna or coaxial cable to this connector on
the system. The maximum input voltage is 5 Vrms
 Input Connector for Frequency Counter:
User can connect the signal source to be measured to this
connector. The maximum input voltage is 5 Vrms.
Basic operation (section 5)
Connection
for Input
Level