Technical Specifications; Technical Characteristics - HT PV-ISOTEST User Manual

10. TECHNICAL SPECIFICATIONS

10.1.

TECHNICAL CHARACTERISTICS

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