Atec I-V400 User Manual
I-V400 Rel. 1.07 – 18/06/12
I-V curve checker and IVCK test
Pag 1 of 3
1. GENERAL SPECIFICATIONS OF I-V 400 METER
HT ITALIA enlarges its range of products for photovoltaic system introducing the new I-V 400
The instrument allows the on field measurement of I-V curve as well as of the main parameters of a single
module and of a whole photovoltaic system up to a maximum of 1000V and 10A
The acquired data are then worked out and transferred to the reference conditions (STC) in order to
compare them with the rated data declared by the manufacturer of those modules. The comparison
between the detected and the rated data permits to immediately determine whether the string or the
module respect the parameters declared by the manufacturer.
The instrument allows to perform quick tests (IVCK) to measure the open voltage Voc and short circuit
current Isc on PV module/strings output also without irradiation conditions
I-V 400 manages an internal database of the most common photovoltaic modules. Such a database can be
updates at any time by the user both through the management software and directly through the
instrument’s interface
HT ITALIA SRL
Via della Boaria 40 - 48018 Faenza (RA)- Italy
Tel: +39-0546-621002 - Fax: +39-0546-621144
email: export@htitalia.it - web: www.ht-instruments.com
I-V400 Rel. 1.07 – 18/06/12
I-V curve checker and IVCK test
Pag 2 of 3
2. ELECTRICAL SPECIFICATIONS
Accuracy is calculated as [% reading + (number of dgts) x resolution] at 23°C 5°C, <80HR
VDC Voltage @ OPC
Range (V) (***) Resolution (V) Accuracy
5.0 999.9
(***) The I-V curve and Rs measurements start for VDC > 15V and the accuracy is defined for VDC > 20V
IDC Current @ OPC
Range (A) Resolution (A) Accuracy
0.10 10.00
Max Power @ OPC (Vmpp >30V, Impp >2A)
Range (W) (*, **) Resolution (W) Accuracy
50 9999
Vmpp = Maximum power voltage, Impp = Maximum Power Current
(*) Max measurable value of Power must include FF value(~ 0.7) Pmax = 1000V x 10A x 0.7 = 7000W
(**) Test is stopped and the message “Thermal instability” occurs if the instrument detects Voltage > 700V and Current I >3A, I > -
0.038*V + 37.24 - 0.5
VDC Voltage (@ STC and OPC), IVCK
Range (V) (***) Resolution (V) Accuracy (*,**)
5.0 999.9
IDC Current (@ STC and OPC), IVCK
Range (A) Resolution (A) Accuracy (**)
0.10 10.00
Max Power @ STC (Vmpp >30V, Impp >2A)
Range (W) (*, **) Resolution (W) Global accuracy (**)
50 9999
Vmpp = Maximum power voltage, Impp = Maximum Power Current
(*) Measurements start for VDC > 15V and the accuracy is defined for VDC > 20V
(**) Test conditions:
Test cond.: Steady Irrad.700W/m
Global accuracy include contribute of solar sensor and its measuring circuit
2
, spectrum AM 1.5,solar incidence vs perpendicular. 25°, Cells Temp. [15..65°C]
Irradiance (with reference cell)
Range (mV) Resolution (mV) Accuracy
1.0 100.0
Temperature of module (with auxiliary PT1000 probe)
Range (°C) Resolution (°C) Accuracy
-20.0 100.0
0.1
0.01
1
0.1
0.01
1
0.1
0.1
(1.0rdg+2dgt)
(1.0rdg+2dgt)
(1.0%rdg+6dgt)
(4.0rdg+2dgt)
(4.0rdg+2dgt)
(5.0%rdg+1dgt)
(1.0rdg+5dgt)
(1.0rdg+1°C)
HT ITALIA SRL
Via della Boaria 40 - 48018 Faenza (RA)- Italy
Tel: +39-0546-621002 - Fax: +39-0546-621144
email: export@htitalia.it - web: www.ht-instruments.com
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