HT Instruments HT10 Bedienungsanleitung Seite 25

The following symbols are used on the instrument:
CAUTION - refer to the instruction manual - an improper
use may damage the instrument or its components
Double insulated
DC Voltage
AC Voltage
Instrument suitable for carrying out measurements under
voltage
The instrument complies with the regulation of the TÜV
Association for Electrical, Electronic & Information
Technologies and with the rules of "Geprüfte Sicherheit
CAUTION: this symbol indicates that equipment, the
battery, and its accessories shall be subject to a separate
collection and correct disposal
1.1. DURING USE
Always keep to the instructions contained in this manual:
•
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 operation
•
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 § 7.2
•
Check the state of the internal batteries before use and replace
them if necessary
•
Prior to usage ensure perfect instrument function (e.g. on a known
voltage source)
•
The functionality of the instrument must be quickly checked
before and after use by using the test probes. If the indication of
one or more steps fails or if no functionality is verified, the
instrument is no longer to be used
•
The different signals indicated by the instrument (including the
ELV limit indication) must not be used for measuring purposes
•
Before using the instrument with audible indicator at locations
with a high background noise level please evaluate if the audible
signal is perceptible
•
Position the instrument in order to avoid hiding of visual indication
or covering of sound transmitter
•
Check the state of the voltage source before to use the instrument
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HT10