Mohr CT100B Series - General Information; Product Description; Power Requirements

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1. General Information

1.1. Product Description

The MOHR CT100B TDR Metallic Cable Analyzer uses a form of closed-circuit radar known as

time-domain reﬂectometry (TDR) to test cables for defects or “faults”. The instrument applies a

fast rise time broadband step signal to the cable under test and then measures the reﬂected voltage

at very short time intervals. The resultant TDR trace allows the operator to identify changes in

impedance along the length of the cable indicating the presence of faults such as opens, shorts,

kinks, defects in the shield or conductor, foreign substances such as water, and thermal damage,

among others.

The CT100B provides sophisticated signal-processing software that lets users analyze the

frequency-domain characteristics of the TDR trace, replacing a handheld vector network analyzer

(VNA) or frequency-domain reﬂectometer (FDR) for many applications. With the CT100B TDR

Cable Analyzer a user can detect, localize, and characterize almost any cable fault in both the time

and frequency domains.

Please note that with the release of the CT100B, the CT100HF instrument has been updated with

the CT100B hardware, ﬁrmware, and software improvements. Any reference to the CT100B in this

manual also applies to the CT100HF unless speciﬁcally stated.

1.2. Power Requirements

The CT100B may be operated using either the supplied AC adapter or internal NiMH batteries

(for a minimum six hours operating time, typical use). The internal NiMH battery charges under

AC during normal operation.

The external AC power adapter (pn: CT100-AC-PS) operates on 100-240 VAC at 50-60 Hz and

draws a maximum current of 1.5 A. Use of a grounded AC socket (US 3-prong or EU equivalent) is

essential for safe operation of the CT100B with the included AC power adapter. Review the Safety

Summary section before operating the CT100B.

1.3. Options and Accessories

Options and accessories available for the CT100B are described in Appendix C, Options and

Accessories.

CT100B TDR Cable Analyzers Operator’s Manual 1