IsoBlock I-FG-4c Spec Sheet Datasheet by Verivolt LLC

View All Related Products | Download PDF Datasheet
650 Washington St, San Francisco, CA 94111
(708) 374-8658
The IsoBlock Current-FG-SC is a 4 (four) channel (SC) module designed for high-quality isolated cur-
rent measurements in the range from 6 to 50 Amperes. The IsoBlock Current-FG module provides
1200V primary-to-secondary isolation, which allows users to monitor a miscellaneous of currents
at different potentials.
The IsoBlock Current-FG uses Flux-Gate methodology to measure the current flowing through the
input conductor. In essence, this technique works by placing a toroid with a high number of turns
(secondary) around the input current path (primary), while a close-loop circuitry controls the cur-
rent through the secondary to null out the magnetic field inside the toroid. The input current is
then obtained by multiplying the current from the control circuitry by the number of turns of the
secondary. This is followed by an anti-aliasing filter and a conditioning stage to output a ±5V signal.
The compact form factor of the IsoBlock Current-FG module allows users to setup high channel
density monitoring systems, making it ideal for deployed and portable systems.
IsoBlock I-FG-1c 6A 15A 25A 50A
Bandwidth (-3dB point) DC - 300kHz
Integrated sensor noise
(Referenced to input) < 3.2 mA < 6 mA < 10 mA < 18 mA
Conversion Factor 1.667 V/A 666.667 mV/A 400 mV/A 200 mV/A
Differential input
dynamic range 12A 30A 50A 100A
Accuracy (percentage of
Gain (Using 5V standard output voltage)
Max total phase shift at 60Hz < 0.05°
Max Input delay < 5 μs
Isolation voltage from primary
side to secondary side > ±1200V
Withstanding common mode
surge voltage ±2000V
Withstanding differential mode
surge voltage ±1000V
Mounting Type DIN Rail
Connectivity (Connector for
power in and signal out to/
from the sensor)
Spring cage
Outer Dimensions 3.5” x 2.5” x 1.5”
Weight 205 g (7.2 oz)
Integrated sensor noise (Referenced to input)
Input-Output non-linearity < 280 ppm/A
Output voltage ±5V Custom
Gain temperature drift ±50 ppm/°C
Differential input dynamic range
Common mode rejection
at 50kHz 108 dB
Power Supply Voltage 8 to 28 V
Output type Differential signal
Output Offset Voltage < ±500µV
Differential Input
impedance > 1 MΩ
Common mode impedance > 2 GΩ || 4pF
Output impedance 200Ω
Operating temperature – 25 to 70 °C
Storage temperature – 40 to 80 °C
Installation on DIN rail
The IsoBlock Current module is designed to mount on standard
NS-35 or NS-32 DIN rails with minimal preparation, providing us-
ers ease of use and flexibility.
indication of input, output and power of the IsoBlock I-FG-1c
The current input connectors are located at the top of the module
in the figure above. A connector that servers to power the unit and
output the sensor signal lays along the bottom.
IsoBlock I-FG-4c
4-Channel FluxGate Current
Measuring Module
L®sssss&s“ 1r: 1 C€
THIS SENSOR IS NOT A SAFETY DEVICE AND IS NOT INTENDED TO BE USED AS A SAFETY DEVICE. This sensor is designed only to detect and read certain data in an elec-
tronic manner and perform no use apart from that, specifically no safetyrelated use. This sensor product does not include self-checking redundant circuitry, and the
failure of this sensor product could cause either an energized or de-energized output condition, which could result in death, serious bodily injury, or property damage.
● CE
Standards and Certifications
C. Securely connect one end of a
twisted pair to the output terminals,
and the other end to the inputs of your
data acquisition unit
B. Securely connect wire in the 20-6
AWG range between the source of
measurement and an available IsoB-
lock’s input screw terminal.
A. Connect 5V external power source
to power the unit. For proper function-
ing the power supply should provide a
voltage between 8V and 28V with at
least 0.2A of continuous current and
0.4A surge during module start-up.

Products related to this Datasheet