Current sense optical fiber link EFL-I

Description

The EMCgear EFL-I is a precision current sense analog optical fiber link, designed for accurate current measurement and complete galvanic isolation in demanding EMC test environments or any place requiring the safe transfer of current signals between two electrically separated locations.

The EFL-I range is available in six current range options, covering both unipolar and bipolar configurations to meet the diverse measurement needs of devices under test

A high-speed communication link with a sample rate of 200 kSa/s and real-time CRC protection ensures absolute signal integrity and low latency.

The rugged aluminum enclosure and embedded input/output filters provide excellent EM immunity and emission performance, making the EFL-I an ideal choice for harsh EMC environments, immunity test setups, and custom measurement benches.

Product datasheet

EFL-I_Datasheet_Manual_v11.pdf

Pricing / lead-time

For the actual price list and information about lead-time please fill in your request via the Request Quote button or use the contact form on our website. (We will get back to you within 24 hours.)

Features

Battery operated 2 channel transmission link with current sense input up to 25 A

Excellent out of the box accuracy 0,5%

2 independent current sense channels per link

Sample rate of 200kSa/s

Designed for usage in EMC test labs, ultra-low EMI behavior, exceptional immunity performance

Typical operating time of 20 hours

820 nm SMA-905 optical interface

Technical parameters – General

Channels	2
Input voltage range	0 to 25 A (unipolar) 0 to 2.5 A (unipolar) 0 to 250 mA (unipolar) -12.5 to 12.5 mA (bipolar) -1.25 to 1.25 mA (bipolar) -125 to 125 mA (bipolar)
Output voltage range	0 to 2.5 V (all unipolar variants) -1.25 to 1.25 V (all bipolar variants)
Input common mode voltage	max. ± 40 V between IN1 and IN2
Input voltage drop	max. 130 mV (25 A range @ 25 A) max. 65 mV (2.5 A range @ 2.5 A) max. 650 mV (250 mA range @ 250 mA)  *)
Input short circuit protection (long term)	max. 30 A (25 A / ± 12.5 A range) max. 15 A (2.5 A / ± 1.25  A range) max. 15 A (250 mA / ± 125  mA range)  *)
Sample rate	200 kSa/s
Resolution	12 bits
Accuracy	±(0.5% value + 0.05% range)
Battery	4.2 V / 5000 mAh
Operating time	Typ. 20 hours
Operating temperature	0 to 55 °C

*) 250 mA input range variant includes onboard resettable fuses

Scope of delivery (per EFL-A link kit)

EFL-A Analog fiber link – Input side box	1pc
EFL-A Analog fiber link – Output side box	1pc
Foam lined transport box (330 x 272 x 82 mm)	1pc

Recommended accessories

Power Adaptor 100-240V to 5V 3A 2.1mm Screw Lock UK/EU/US/AU plug	EFL-A-AD1 (2 pcs are strongly recommended)
Fiber patch cable SMA905-SMA905 10m Duplex fiber Termination: 2x SMA905 on both ends Optical mode: OM1, Cladding: 62.5/125 µm Length: 10m	EFL-A-FPC10
Fiber patch cable SMA905-SMA905 20m Duplex fiber Termination: 2x SMA905 on both ends Optical mode: OM1, Cladding: 62.5/125 µm Length: 10m	EFL-A-FPC20

*) Please mark the required accessories in your request for quotatiom.