HT PVCHECK - General Description of PVCHECK Instrument; Introduction to PVCHECK; Instrument Functions and Features

PVCHECK
5
2. GENERAL DESCRIPTION
2.1. INTRODUCTION
This instrument has been designed to carry quick checks (IVCK) on photovoltaic modules/strings
in order to verify the parameters declared by the manufacturer. In addition, this instrument
measures insulation/continuity on PV modules/strings/fields and evaluates the efficiency of a PV
field.
IVCK and insulation/continuity measurements may be performed in sequential order IVCK 
Insulation  Continuity, or be carried out separately in manual mode.
2.2. INSTRUMENT FUNCTIONS
The instrument has the following features:
Continuity test of protective conductors (LOWΩ)
 Test with test current > 200mA in compliance with standard IEC/EN62446
 Manual calibration of measuring cables.
Measurement of insulation resistance on PV modules/strings (MΩ)
 Test voltages of 250V, 500V, 1000VDC in compliance with standard IEC/EN62446
 3 measuring modes: Field, Timer, String
 Insulation test of unearthed metal masses
Efficiency evaluation of a PV installation in the short/medium term (EFF)
 Measurement of DC voltage, DC current and DC power at PV modules/strings’ outputs
 Measurement of irradiation [W/m
2
] by means of a reference cell connected to the optional remote
unit SOLAR-02
 Measurement of module and environmental temperature by means of probe connected to the
optional remote unit SOLAR-02
 Application of compensation relationships to DC efficiency.
 Immediate evaluation of DC efficiency according to the limits set by the user
 Parameter recording of a PV system with 5s to 60min programmable IP
Quick checks (IVCK) in compliance with standard IEC/EN62446
 Measurement of open circuit voltage Voc on PV modules/strings up to 1000VDC
 Measurement of short-circuit current Isc on PV modules/strings up to 10A
 Measurement of irradiation by means of an optional reference cell
 Immediate evaluation (OK/NO) of test results
 Possible connection with the optional remote unit SOLAR-02
 Internal customizable database for managing up to 30 PV modules
 Display of results in OPC and STC conditions
The instrument is provided with backlit display, internal contrast adjustment and a HELP key able
to give a valid help to the operator while connecting the instrument to the installation. An Auto
Power OFF function, which can also be deactivated, is available after approx. 5 minutes’ idleness.