Protection Mechanisms; Safety Mechanisms; Warranty - Metrix MX 21 Manual De Instrucciones

∗
When the instrument is opened up, remember that some internal
capacitors can retain a dangerous potential even after the
instrument is switched off.
∗
If any faults or abnormalities are observed, take the instrument
out of service and ensure that it cannot be used until it has been
checked out.
∗
It is recommended to remove the battery from the instrument if
not used.
1.2

Protection mechanisms

This instrument is fitted with various protection mechanisms :
∗
Varistor protection for limiting transients of over 600 V at the VΩ
terminal, particularly 6 kV pulse streams as defined by the French
standard IEEE 587.
∗
A PTC (positive temperature coefficient) resistor protects against
permanent overvoltages of up to 600 V during resistance,
continuity and diode test measurements. This protection is reset
automatically after overload.
∗
An IP protection rating of 40.
1.3

Safety mechanisms

∗
The battery unit cannot be accessed without first disconnecting
the measuring leads.
∗
If the maximum range is repeatedly exceeded, an intermittent
audible signal warns the user in V
functions.

1.4 Warranty

This equipment is warranted against any defects of manufacture or
materials according to the general conditions of sale.
During the warranty period (1 year), defective parts will be replaced,
the manufacturer reserving the right to repair or replace the product.
In the event of the equipment being returned to the after sale
department or to a local agency, carriage to the centre shall be
payable by the customer. The warranty does not cover the following :
1. Repairs necessitated by misuse of the equipment or use in
association with incompatible equipment.
2. Modification of the equipment or any related software without the
explicit authorization of the manufacturer.
3. Repairs necessitated by attempts to repair or maintain the product
made by a person not approved by the manufacturer.
4. Adaptation to a specific application not provided for in the
specifications of the equipment or the user manual.
5. Damage after a drop, a shock or flooding.
, V , mV , mV
AC DC DC
, I ,
AC DC