HT instruments HT7051 - Manual (Page 5)

HT2055
EN - 4
2 GENERAL DESCRIPTION
The instrument HT2055 you purchased grants accurate and reliable measurements as
well as the utmost safety provided it is used in compliance with the indications given in this
manual. Thanks to a new concept development it ensures double insulation and,
consequently, compliance with the requirements of overvoltage category IV.
The instrument is composed of the following two units:
HT2055S
 Station unit which can generate the test current in order to perform the
step/contact voltage and the earth/resistivity measurements
HT2055M
 Meter unit in order to perform the step/contact voltage measurements with
test current generated by the station unit.
2.1 INSTRUMENT FEATURES
 Step/contact voltage measurement with test current of max 55A
 Earth resistance measurement with 4 wire method
 Ground resistivity measurement with Wenner method
 Use of metal plates for step/contact voltage measurement
 Initial synchronizing for autonomous use of the meter unit
 DSP internal filtering for compensation of disturbance effect on the measurement
 Internal memory for saving test
 USB interface for data transfer to PC
 Use of rechargeable batteries on meter unit
A dot matrix LCD offers easy-to-read results and all associated parameters. The operation
is straightforward and clear to enable the user to operate the instrument without the need
for special training (except reading and understanding this user manual).
Test results can be stored on the instrument. The new professional PC SW enables
straightforward transfer of test results and other parameters in both directions between the
test instrument and PC