DET14C and DET24C
Digital Earth Clamps
DESCRIPTIOn
The DET14C and DET24C represent a new generation of
earth/ground clamp-on resistance testers. These instruments
induce a test current into earth systems and measure ground
resistance in multi ground installations without needing to
disconnect the ground. They offer market leading access,
advanced features, simple operation and CAT IV 600 V safety
protection.
Designed with flat core ends they prevent dirt build up,
ensuring measurement integrity and improved reliability
over products with interlocking teeth. Other enhancements
over current generation products include improved accuracy
and up to 300% increase in battery life. In electrically noisy
environments the built-in filter function offers increased
noise immunity.
DET14C and DET24C also offer a true RMS AC current
measurement facility up to 35 Amps. The instrument’s ability
to measure current flowing in an earth cable is a useful safety
feature, especially if the earth cable has to be disconnected.
A high current flow to earth could draw an arc on dis-
connection with potentially severe consequences.
The elliptical shaped head design offers improved access to
cables and earth straps in space constrained locations. The
clamp head accommodates up to 37 mm diameter cable and
50 mm earth tapes making them suitable for use in power
stations, substations, towers and many more facilities.
Operation in dark and restricted areas is facilitated by a
display with backlight and an audible tone associated with
the hold key. Optimised jaw opening mechanism ensures
proper jaw closure without excessive use of force when
opening the jaws.
The DET14C offers storage of results for later on-screen
recall and the DET24C supports a download of results via
IrDA-to-USB link into PowerDB and Power DB Lite, Megger’s
n Elliptical clamp shape improves access to
n Low maintenance flat jaw interface
n Measures ground resistance from 0.05 Ω
n Measures true RMS ground leakage current
n CAT IV 600 V safety rating
n Backlit LCD display
acceptance and maintenance test data management software.
Stored data is indexed using a sequential serial number
together with a time and date stamp for each record.
FEATURES AnD BEnEFITS
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DET24C ADDITIOnAL FEATURES
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APPLICATIOn
The earth resistance clamp meters are particularly suitable
for measuring earth resistance in various installations such
as buildings, pylons and RF transmitter sites without system
disconnection. In addition, they can be used for the
inspection and verification of lightening protection systems
and virtually any installation where a current loop can be
generated.
Auto-current measurement safety feature
Memory to record and view results
Automatic self calibration
Auto ranging
High and low alarms
Real time clock for date and time stamping of results
IrDA USB interface to PC
Advanced memory functionality with download
Megger PowerDB/PowerDB Lite
earth cables and straps up to 50 mm
to 1500 Ω
from 0.5 mA rms to 35 A rms
TM
compatible
Digital Earth Clamps
