Datasheet

714-921-9095 bkprecision.com 5
3 Using the Probe
1.1 Power Source
The supplied voltage must greater than 4.4 VDC, and less than 12
VDC, otherwise the probe will not operate properly. When the batteries
are low, the power indicator on the panel will icker.
As an option to the supplied batteries, you may use the BK-CT3723
power adapter (not included) or the BK-CT4122 USB power lead (not
included).
1.2 Replacing the Batteries
Before using the differential probe for the rst time, the batteries
supplied with the device must be inserted in the battery compartment
(unless you are using the power adapter or USB power lead).
WARNING
At the time of inserting or replacing the batteries, the input leads must
not be connected to an item to be tested. Never operate the probe with
the case open.
To insert or replace the batteries, remove the yellow protective rubber
boot by pealing it away from the case and then sliding back the battery
cover. If necessary, the old AA batteries can then be removed and the
new ones inserted into the compartment. Always ensure the batteries
are positioned for proper polarity. After inserting the batteries, close the
case and replace the boot.
1.3 Getting Started
1. Connect the hook probes to the leads.
2. Connect the probe to the oscilloscope with the BNC cable.
The input impedance of the oscilloscope must be 1 MΩ. In
view of the high impedance connection, it is not advisable
to extend the cable. When using an oscilloscope with a 50
Ω input, the actual vertical scale on the oscilloscope will be
doubled (see Table 1). It should also be noted that battery