Smart Lightning Protection

FR Grounding Resistance Monitoring Module (Explosion-Proof)

Name: FR Grounding Resistance Monitoring Module (Explosion-Proof)
Brand: YESLON
SKU: fr-explosion-proof-ground-module
Price: 1 CNY
Availability: InStock

FR-01111

Precision three-wire explosion-proof grounding monitoring: grounding resistance 0.01Ω~2000Ω and earth voltage 0.1~600V measured together, rated Exd IIC T4 Gb.

Exd IIC T40.01~2000Ω0.1~600V

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FR Grounding Resistance Monitoring Module (Explosion-Proof)

Product Overview

Precision three-wire explosion-proof grounding monitoring: grounding resistance 0.01Ω~2000Ω and earth voltage 0.1~600V measured together, rated Exd IIC T4 Gb.

Core capabilities

Precision three-wire measurement: Three-wire grounding resistance measurement gives better comparability between readings.. Dual-parameter monitoring: Grounding resistance and earth voltage measured by one module.. High-level explosion protection: Exd IIC T4 Gb, suitable for hydrogen and acetylene IIC atmospheres..

Data Generated

Exd IIC T40.01~2000Ω0.1~600V

Product Features

Precision three-wire measurement

Three-wire grounding resistance measurement gives better comparability between readings.

Dual-parameter monitoring

Grounding resistance and earth voltage measured by one module.

High-level explosion protection

Exd IIC T4 Gb, suitable for hydrogen and acetylene IIC atmospheres.

Multiple communication options

RS485 as standard, Zigbee, Ethernet or 4G optional.

Wide supply compatibility

DC12V or AC220V, with solar or lithium battery options.

Rugged construction

Aluminium alloy flameproof enclosure rated IP65.

System Topology

Technical Parameters

Technical Data

Grounding resistance range 0.01Ω ~ 2000Ω Earth voltage range 0.1V ~ 600V Measurement principle Precision three-wire method Accuracy ±2%rdg±3dgt Explosion-proof rating Exd IIC T4 Gb Communication RS485 (standard) / Zigbee / Ethernet / 4G

Grounding resistance range	0.01Ω ~ 2000Ω
Earth voltage range	0.1V ~ 600V
Measurement principle	Precision three-wire method
Accuracy	±2%rdg±3dgt
Explosion-proof rating	Exd IIC T4 Gb
Communication	RS485 (standard) / Zigbee / Ethernet / 4G
Power supply	DC12V / AC220V; solar or lithium battery optional
Enclosure	Aluminium alloy, flameproof
Degree of protection	IP65
Operating temperature	-20℃ ~ 60℃

Installation Instructions

Standard 35 mm DIN rail mounting; terminals: supply side L1/L2/L3, N, PE, communication and signal terminals as marked on the device.

Key Points

FAQ

What is the explosion-proof rating and where can it be used?

The module is rated Exd IIC T4 Gb in a flameproof aluminium alloy enclosure. It can be used in IIC gas atmospheres such as hydrogen and acetylene, and in petrochemical process areas.

Which parameters can be measured at the same time?

Grounding resistance from 0.01Ω~2000Ω and earth voltage from 0.1V~600V are measured simultaneously. Both values are read and uploaded by the same module.

What measurement principle is used?

The module uses the precision three-wire method. That is the method suited to grounding systems that need absolute verification and re-checking rather than trend-only loop measurement.

How are communication and power configured?

RS485 is fitted as standard, with Zigbee, Ethernet or 4G optional. Power can be DC12V or AC220V, and a solar or lithium battery supply can also be specified for the installation.

What certification applies and how is pricing provided?

Certification is held through a CE / CMA / CNAS accredited laboratory. Price is quoted per model and supply option; Request a quote with the model code plus the supply and communication configuration.

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