PV-ISOTEST
EN - 34
10. TECHNICAL SPECIFICATIONS
10.1. TECHNICAL
CHARACTERISTICS
Accuracy is indicated as [%r (no. of digits) * resolution] at 23°C ± 5°C, <80%RH
DC Voltage
Range [V]
Resolution [V]
Accuracy
3
1500
1
(1.0
r 2digits)
AC TRMS Voltage
Range [V]
Resolution [V]
Accuracy
3
1000
1
(1.0
r 3digits)
Frequency range: 42.5 ÷ 69Hz ; Voltages zeroed for measured value <3V
Insulation Resistance (M
) R(+), R(-), Rp – DUAL mode
Test voltage DC [V]
Range [M
] Resolution
[M
]
Accuracy (*)
250, 500, 1000, 1500
0.1
0.99
0.01
(5.0
reading
+ 5digits)
1.0
19.9
0.1
20
100
1
(*) Accuracy given for VPN
≥
240V, Rfault
≥
10
. Accuracy of Rp and R(+) not declared if R(+)
≥
0.2M
and R(-)<0.2M
, Accuracy of
Rp and R(-) not declared if R(+) <0.2M
and R(-)
≥
0.2M
Open circuit voltage
<1.25 x rated test voltage
Short-circuit current
<15mA (peak) for each test voltage
Rated test current
> 1mA on R = 1k
x Vnom (with VPN, VPE, VNE= 0)
Insulation resistance (M
) – TIMER mode
Test voltage DC [V]
Range [M
] Resolution
[M
]
Accuracy
250, 500, 1000, 1500
0.01
9.99
0.01
(5.0
r 5digits)
10.0
99.9
0.1
Open circuit voltage
<1.25 x rated test voltage
Short-circuit current
< 15mA (peak) for each test voltage
Rated test current
> 1mA on R = 1k
x Vnom (with VPN, VPE, VNE= 0)
Selectable Timer:
3s ÷ 999s
Continuity of protective conductors (RPE)
Range [
] Resolution
[
]
Accuracy
0.00
9.99
0.01
(2.0
r 2digits)
10.0
99.9
0.1
100
1999
1
Test current:
>200mA DC up to 5
(cables included), resolution 1mA, accuracy
(5.0%r 5digits)
Open-circuit voltage
4 < V
0
< 10V
GFL – Ground Fault Locator
Test voltage DC [V] Range [M
] Resolution
[M
]
Accuracy Rp(*)
Position
accuracy
250, 500, 1000, 1500
0.1
0.99
0.01
(5.0
rdg + 5dgt)
1module
1.0
19.9
0.1
20
100
1
(*) Accuracy given for VPN
≥
240V, Rfault
≥
10
. Accuracy of Rp and R(+) not declared if R(+)
≥
0.2M
and R(-)<0.2M
, Accuracy of
Rp and R(-) not declared if R(+) <0.2M
and R(-)
≥
0.2M
Open circuit voltage
<1.25 x rated test voltage
Short-circuit current
<15mA (peak) for each test voltage
Rated test current
> 1mA on R = 1k
x Vnom (with VPN, VPE, VNE= 0)
The GFL function allows obtaining correct results
ONLY
at the following conditions:
Test carried out on a
single string
disconnected from the inverter, any dischargers and functional ground connections
Single fault
of low insulation located at any position in the string
Insulation resistance of the single fault
<0.1M
Due to the random nature of these faults, it is recommended to carry out the measurements in environmental conditions similar to
those in which the fault was reported