Safety Precautions And Procedures; Preliminary; During Use - HT HT7 Bedienungsanleitung

1. SAFETY PRECAUTIONS AND PROCEDURES

This instrument complies with IEC/EN61010-1 relative to electronic measuring
instruments. For your own safety and to avoid damaging the instrument follow the
procedures described in this instruction manual and read carefully all notes preceded by
this symbol
.
 Avoid measuring in humid or wet places.
 Make sure that humidity is within the limits indicated in § 7.2.1
 Avoid measuring in presence of explosive gas, combustible gas, steam or excessive
dust.
 Do not touch exposed metal (conductive) parts such as test lead ends, sockets, fixing
objects, circuits etc.
 Avoid measuring if you note anomalous conditions such as breakages, deformations,
fractures, strange substances, blind display etc.
 Avoid measuring voltages higher than 20V as you may risk electrical shocks.
The following symbols are used:
Caution: refer to the instruction manual; an improper use may damage the
instrument or its components
Double insulated instrument
AC voltage
DC voltage
1.1.

PRELIMINARY

 This instrument has been designed for use in environments with pollution degree 2.
 It can be used for AC and DC VOLTAGE measurements on installations of CAT IV
600V or CAT III 1000V.
 When using the instrument always respect the usual safety regulations aimed at
protecting you against dangerous electric currents as well as the instrument against
incorrect operations.
 Do not test nor connect to any circuit exceeding the specified overload protection.
 Do not take measurements under environmental conditions exceeding the limits
indicated in § 6.2.1.
 Make sure that batteries are properly installed
1.2.

DURING USE

Read the recommendations which follow and the instructions in this manual:
An improper use may damage the instrument and/or its components or
injure the operator.
 When the instrument is connected to circuits never touch an unused terminal.
 When measuring resistors do not add any voltage. Although there is a protection
circuit, excessive voltage would still cause malfunction.
CAUTION
EN - 2
HT7