Smart Lightning Protection

FRP Ground-Resistance Monitor (Loop Method)

FRP Series

Loop-method ground-resistance monitoring, 0.01-2000 Ohm wide range, Ex d IIB T4 Gb explosion-proof certification, suitable for petrochemical hazardous areas.

0.01-2000 OhmLoop methodEx d IIB T4 GbPetrochemical
FRP Ground-Resistance Monitor (Loop Method)

Product Overview

The FRP Loop-Method Ground Resistance Monitor measures ground resistance using the loop method (no auxiliary electrode required), with a 0.01Ω~2000Ω range, 0.01Ω resolution and ±2%rdg±3dgt accuracy. It features an Ex db IIB T4 Gb explosion-proof flameproof enclosure with IP65 protection, supports RS485/Zigbee/Ethernet/4G and MODBUS/MQTT, and suits online grounding monitoring in petrochemical sites/gas stations, building lightning-protection grounding, communication base stations/substations, outdoor distribution boxes/street lights and similar scenarios.

Core Capabilities

Loop method with real-time online monitoring, no auxiliary electrode required. Explosion-proof flameproof enclosure, Ex db IIB T4 Gb. 0.01Ω~2000Ω wide range, ±2%rdg±3dgt. RS485/Zigbee/Ethernet/4G, MODBUS/MQTT.

Data Generated

0.01-2000 OhmLoop methodEx d IIB T4 GbPetrochemical

Product Features

Loop Method, No Auxiliary Electrode

Uses the loop method without auxiliary electrodes, suitable for rapid online monitoring of existing grounding systems.

Explosion-Proof Enclosure

Ex db IIB T4 Gb explosion-proof flameproof enclosure with IP65 protection, suitable for hazardous areas such as petrochemical sites.

Wide Range, High Resolution

Ground resistance 0.01Ω~2000Ω, 0.01Ω resolution, ±2%rdg±3dgt accuracy.

Multiple Communication Options

Supports RS485/Zigbee/Ethernet/4G with MODBUS/MQTT to connect to the cloud platform.

Wide-Voltage Power Supply

Power DC12V (default)/DC24V/AC220V, suitable for long-term outdoor operation.

System Topology

Perception LayerElectrical Parameters · Leakage Detection · Temperature · Arc · Lightning Current · SPD StatusEdge LayerEdge Gateway · Smart Circuit Breaker · Protocol Acquisition · Rule EnginePlatform LayerFEXLINK Cloud · W-Link · Device Access · Data StorageApplication LayerIndustrial AI Analysis · Virtual Power Plant · Energy Monitoring · Carbon Assets · Carbon-Neutral Park

Selection Guide

Model Naming Rule

FRP Loop-Method Ground Resistance Monitor Models FRP-01111 / FRP-02111 / FRP-03111 Installation 1=outdoor; 2=indoor Power DC12V (default)/DC24V/AC220V Communication RS485/Zigbee/Ethernet/4G

Technical Parameters

Smart Monitoring Functions

Communication RS485/Zigbee/Ethernet/4G Protocol MODBUS/MQTT Ground resistance 0.01Ω~2000Ω, 0.01Ω, ±2%rdg±3dgt Measurement method Loop method (no auxiliary electrode) Explosion-proof rating Ex db IIB T4 Gb Protection IP65 Power DC12V (default)/DC24V/AC220V Dimensions 230*230*130mm, 5kg

CommunicationRS485/Zigbee/Ethernet/4G
ProtocolMODBUS/MQTT
Ground resistance0.01Ω~2000Ω, 0.01Ω, ±2%rdg±3dgt
Measurement methodLoop method (no auxiliary electrode)
Explosion-proof ratingEx db IIB T4 Gb
ProtectionIP65
PowerDC12V (default)/DC24V/AC220V
Dimensions230*230*130mm, 5kg

Key Points

Definition: The FRP Loop-Method Ground Resistance Monitor is a FEXLINK explosion-proof device for online loop-method ground resistance monitoring. Core capabilities: loop method without auxiliary electrodes, 0.01Ω~2000Ω wide range, Ex db IIB T4 Gb enclosure, RS485/Zigbee/Ethernet/4G upload. Applicable scenarios: petrochemical sites/gas stations, building lightning-protection grounding, communication base stations/substations, outdoor distribution boxes/street lights. Related products: FR Three-Point Ground Resistance Monitor, FG Smart Gateway, FEXLINK Cloud grounding monitoring solution.

FAQ

The FRP Loop-Method Ground Resistance Monitor (model: FRP series) is a FEXLINK smart lightning protection product. It monitors ground resistance using the loop method over a 0.01Ω~2000Ω wide range, with Ex db IIB T4 Gb explosion-proof construction, suitable for hazardous areas such as petrochemical sites.
It is suitable for petrochemical sites/gas stations, building lightning-protection grounding, communication base stations/substations, outdoor distribution boxes/street lights and similar scenarios.
Unlike the three-point method that requires auxiliary electrodes, FRP uses the loop method without auxiliary electrodes and features an explosion-proof flameproof enclosure, making it suitable for online monitoring in hazardous areas.
Connect the measuring loop to the target grounding system per the loop method, wire up RS485/Zigbee/Ethernet/4G, and configure the acquisition period.
You can submit your requirements via the contact page on the FEXLINK official website, or call 0755-8653 6148 to book a demo and selection consultation. Our engineers will provide matching solutions and quotations based on your application scenario.

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Learn MoreFRP Ground-Resistance Monitor (Loop Method) Application Scenarios

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