Metrix OX 832 - 1 General Instructions; Safety Precautions; Before Use; During Use

30 MHz-differential oscilloscope
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1. GENERAL INSTRUCTIONS
You have just purchased a 30 MHz-differential oscilloscope; we congratulate you on your
choice of this high quality product.
This apparatus complies with IEC safety standard 61010-1 +A1 +A2 (1995) single
insulation, dealing with electronic measurement instruments. Please read these instructions
carefully and respect the usage precautions, in order to obtain the best use from it.
Failure to respect warnings and / or usage instructions may damage the apparatus and / or
its components and may be dangerous to the user.
1.1. Safety precautions
1.1.1. Before use
- This instrument was designed for use indoors in an environment with a degree of
pollution 2 at an elevation of less than 2000 m, a temperature between 0°C and
40°C, and a relative humidity of 80 % up to 31°C.
- It can be used for measurements on 300 V category III and 600 V CAT II (inputs)
installations and can be supplied by a 253 V CAT III network.
- Definition of installation categories (see publication IEC 664-1):
CAT I : CAT I circuits are protected by devices limiting transient overvoltages to a
low level.
Example: protected electronic circuits
CAT II : CAT II circuits are power supply circuits for domestic or digital devices that
may include transient overvoltages with an average value.
Example: power supply for household appliances and portable tools.
CAT III : CAT III circuits are power supply circuits for power equipment that may
include large transient overvoltages.
Example: power supply for industrial machines or equipment
CAT IV : CAT IV circuits may include very high transient overvoltages.
Example: energy arrivals
- Depending on the position of the fuse on the basic board, this instrument may be
powered by a 110 V AC or 230 V AC ± 10 % network. Before connecting up the
instrument, check that the fuse position matches the rated voltage of your
distribution network. To do this, remove the top cover from the oscilloscope.
- Earth all metallic parts that are accessible to touch (including the working table).
- You are advised to use the accessories delivered with the instrument or proposed
as options. Check that they are in perfect working condition before use.
- Plug the cable into a socket fitted with an earth connection.
1.1.2. During use
- Select vertical sensitivity and timebase ranges adapted to the measurement.
 When carrying out a measurement, never touch an unused terminal of the instrument.
The replacement fuse must be identical to the original fuse.
It is located inside
the apparatus in a housing on the cathode ray tube support part.