7.3.3
IMPEDANCE
Press HELP
key to obtain the Menu.
Select IMPEDANCE by pressing the key indicated.
Select 50, 75 or 93
Ω
by pressing the appropriate key.
7.3.4
PULSE SELECTION
A fixed pulse width may be selected by pressing HELP, PULSE WIDTH and then choosing the
required pulse. This pulse width will then apply to all ranges and the pulse width control will not
function until auto is restored, or the unit is switched off.
Auto pulse selection allows the instrument to select a pulse appropriate to the selected range.
This mode is selected by pressing HELP and then selecting PULSE WIDTH and AUTO.
7.4
SETTING DIELECTRIC (PVF)
7.4.1
FROM CABLE TYPE
The unit can be directly programmed from the list of cable types contained in the HELP Menu.
To access the Menu, press HELP, press the key appropriate to CABLE TYPE. From the list of
options select the appropriate category and then the particular cable type. The available cable
types are shown in the following table.
T631 OPERATING MANUAL
23
Radiodetection Ltd. 00901209-6
