5
1
Safety
MRP-201 meter is designed for performing check tests of protection against electric shock in
mains systems. The meter is used for making the measurements the results of which determine
safety of electrical installations. Therefore, in order to provide conditions for correct operation and the
correctness of the obtained results, the following recommendations must be observed:
Before you proceed to operate the meter, acquaint yourself thoroughly with the present manual
and observe the safety regulations and specifications determined by the producer.
Any application that differs from those specified in the present manual may result in a damage to
the device and constitute a source of danger for the user.
The device must be operated solely by appropriately qualified personnel with relevant certificates
to realise measurements of electric installation. Operation of the meter realised by unauthorised
personnel may result in damage to the device and constitute a source of danger for the user.
Using this manual does not exclude the need to comply with occupational health and safety
regulations and with other relevant fire regulations required during the performance of a particular
type of work. Before starting the work with the device in special environments, e.g. potentially fire-
risk/explosive environment, it is necessary to consult it with the person responsible for health and
safety.
It is unacceptable to operate the following:
A damaged meter which is completely or partially out of order,
A meter with damaged test leads insulation,
A meter stored for an excessive period of time in disadvantageous conditions (e.g. excessive
humidity). If the meter has been transferred from a cool to a warm environment of a high level
of relative humidity, do not realise measurements until the meter has been warmed up to the
ambient temperature (approximately 30 minutes).
It should be remembered that
BAT
message appearing on the display indicates that supply
voltage of the meter is too low. This message signals also that the batteries must be replaced or
the accumulator charged. Measurements performed by means of the meter whose supply voltage
is too low are burdened with additional errors that are impossible to be estimated by the user.
Such measurements must not be relied on in order to state correctness of protection of a network
tested.
Battery spill and damage to the meter may occur if discharged batteries are left in the meter.
Before measurements may commence, make sure the test leads are connected to the
appropriate measurement sockets.
Do not operate a meter with an open or incorrectly closed battery (accumulator) compartment or
power it from other sources than those specified in the present manual.
Repairs may be realised solely by an authorised service point.
ATTENTION!
Only standard and additional accessories for a given device should be used, as listed in
the "Equipment" section. Use of different accessories can lead to errors in the test
connection and can introduce additional measurement uncertainties.
Note:
An attempt to install drivers in 64-bit Windows 8 may result in displaying "Installation
failed" message.
Cause: Windows 8 by default blocks drivers without a digital signature.
Solution: Disable the driver signature enforcement in Windows.
