The Sonel PVM-1020 meter is probably the world’s smallest
photovoltaic system meter with such a substantial number of
measurement functions. The functions are selected with a rotary
switch. Additional parameters are set with buttons located on the
housing. All buttons
and the graphic display are backlit, which greatly facilitates
operation in shaded places, e.g. when taking measurements under
ground-mounted PV
systems. Large memory significantly shortens preparation of
documents after the measurement.
Features
It can be used for category 1 measurements
according to IEC 62446-1.
AUTO mode for performing a sequence of
measurements after one press of the START
button.
It converts measured parameters into STC
conditions according to IEC 60891 by cooperation with
the
IRM-1 solar radiation and temperature meter.
reSYNC function – automatic completion
of
results with environmental parameters and their conversion
to STC conditions after restoring connection with
IRM-1.
The built-in LoRa radio interface ensures
cooperation with the IRM-1 meter over long distances.
Built-in Bluetooth module for communication
with a computer.
Large measurement memory: 100 objects with 40
cells each.
Backlit display and buttons.
Measured parameters
The open circuit voltage of the PV panel
or a
chain of panels, up to 1000V DC.
RMS voltage of the AC network up to 600 V
with frequency measurement.
Short circuit current of a PV panel or
chain
of panels – up to 20 A DC.
Insulation resistance of PV panels –
measuring voltage of 250, 500 or 1000 V, simultaneous
measurement of two values: RISO+ and RISO-.
Insulation resistance of AC circuits –
measuring voltage 250, 500 or 1000 V.
Resistance of protective conductors and
equipotential bonding with ± 200 mA current. Low-current
resistance measurement, audible and visual
signalling.
Measurement of PV panels operating
current
and AC current – all with external clamp.
AC/DC power Measurement.
Diode test with 200 mA current, automatic
polarity detection. Test of blocking diodes with 1000V
DC
voltage.
Tightness and durability
The meter
performs well in harsh environmental conditions.
Protection against the ingress of dust and water is provided by the
housing rated at IP65. This is especially important for measurements
on photovoltaic systems, which are outdoor installations.
The meter performs well in harsh environmental conditions.
Protection against the ingress of dust and water is provided by the
housing rated at IP65. This is especially important for measurements
on photovoltaic systems, which are outdoor installations.
Communication and software
Measurement data
from the PVM-1020 can be transferred to a computer
via Bluetooth wireless communication. Saving the downloaded data to
popular formats and printing ensured by Sonel Reader. In order to
generate a report on electric shock protection use the optional
software: Sonel Reports PLUS.
Light meters perform well in harsh environmental conditions.
Protection against the ingress of dust and water is provided by the
housing rated at IP65.
This is especially important for measurements on photovoltaic
systems, which are outdoor installations.
Trouble? reSYNC!
It may happen
that in the course of measurements the PVM-1020 moves
away from the IRM-1 so far, that communication between them is lost.
If the measurements are continued, then after the connection is
restored, the results will be automatically supplemented with
environmental
parameters, which in the meantime were recorded by the IRM-1
in its temporary memory, and converted into STC conditions.
