Chauvin Arnoux TK2000 Notice De Fonctionnement page 15

! symbol
Meaning of the
CAUTION ! Read the instructions before using the device.
In these operating instructions, failure to follow or carry out
instructions preceded by this symbol may result in personal
injury or damage to the device and the installations.
50V CAT I: 50V CAT I device; corresponds to measurements
on circuits not directly connected to the network and under
50V with respect to the earth connection.
Compliant with directive WEEE 2002/96/EC.
Tank you for purchasing this Digital Thermometer.
To obtain the best service from your unit :
■ read the instructions carefully
■ comply with the precautions for use.
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PRECAUTIONS FOR USE
The thermometer casing must be kept within the temperature
range of -20°C to 50°C in line with the scope of use of cold
junction compensation in K-type thermocouples.
The probe connectors can tolerate up to +200°C continuously
(see §2 - Connection).
Do not connect this device to installations or equipment of a
higher category than 50V CAT I.
DEFINITIONS OF INSTALLATION CATEGORIES
(cf. CEI 664-1)
■ CAT I : Circuits in which measures are taken to limited the
transient overvoltages to an appropriate low level.
E.g. protected electronic circuits.
■ CAT II : Power supply circuits for domestic appliances and
the like which may be subject to medium-level transient
overvoltages.
E.g. household appliances and portable tools.
■ CAT III : Power supply circuits for power appliances which
may be subject to high-level transient overvoltages.
E.g. industrial machines or devices.
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