Mohr CT100B Series - Getting Started; Handling the CT100 B; Powering the CT100 B

3. Getting Started
If you would like a detailed explanation of TDR measurement theory and applications before using
the CT100B, please read Section 7, TDR Measurement Theory.
3.1. Handling
The CT100B is designed to meet the rigors associated with normal instrument use both in the field
and on the benchtop. Care should be taken to protect it from excessive mechanical shock,
vibration, static electrical charges, and water hazards.
The CT100B front panel is protected from impact by a snap-on front cover. The carrying handle
rotates 360
◦
and can be used to support the instrument for bench-top use.
The CT100B is not watertight and must be protected against water spray. If the unit is subjected
to water spray, first turn off the unit with the battery-disconnect power switch on the rear panel
and then drain all of the excess water from the case and allow it to dry completely.
As noted in the Safety Summary and elsewhere, the CT100B is sensitive to damage introduced by
electrostatic discharge. Always properly ground the conductors of a cable to each other or to earth
ground before attaching it, either directly or indirectly, to the front panel BNC, SMA, or other test
port. Failure to do so could damage the sampling electronics and void the Warranty.
The CT100B can be stored in temperatures between -20
◦
C to +60
◦
C with or without a battery
installed and can be operated from 0
◦
C to +50
◦
C.
3.2. Powering the CT100B
The CT100B can be powered through the included 120/240 VAC RMS to 24 VDC external power
adapter. This adapter has sufficient capacity to charge the internal battery from a dead battery
state while the unit is under operation. The internal battery will allow the unit to operate using
power conservation techniques for periods of at least 6 hours under typical use. Automatic
power-down occurs after a variable amount of time of inactivity, selectable in software by the user.
The screen also can be set to turn off after a set amount of inactivity. A heavily discharged battery
will require 4 hours to reach full charge.
Fusing is internal and based on thermal reset switches and a manual-reset breaker. If one of these
fuses trips, it may indicate that a hardware malfunction has occurred, and the instrument should
be evaluated by qualified personnel.
CT100B TDR Cable Analyzers Operator’s Manual 9