ESP Neutral-Ground Voltage Monitor - monitoring
Real-Time monitoring of neutral-ground voltage dynamics, detecting hazards to ensure safe System Operation
High-precision dynamic algorithm model with error-correction support ensures stable operation in demanding scenarios. Highly integrated for easy field installation; with dedicated gateway, only 20% of conventional workload is needed for integration.
Product Overview
The ESP Neutral-Ground Voltage Monitor monitors neutral-ground voltage dynamic values in Real-Time, detecting hidden dangers to ensure safe System Operation.
Widely applicable in: medical equipment, electronics and computer-controlled precision machinery, UPS power supplies, laboratories, server rooms, hospitals, R&D centers, banks, energy storage systems, military facilities, etc. Highly integrated for easy field installation without complex configuration; with dedicated gateway, only 20% of conventional workload is needed.
Core Monitoring Capabilities
- Real-Time neutral-ground voltage monitoring, range 0-400V, accuracy Class 0.5.
- High-precision dynamic algorithm model + error-correction algorithm for stable operation in demanding scenarios.
- 2-ch DI input alarm + 1-ch DO relay output alarm, supports linkage control.
- OLED display + multi-level menu for local and cloud query management.
Product Features
Alarm Function
Input alarm: 2-ch DI input alarm; output alarm: 1-ch DO alarm; alarm query: query alarm info via OLED screen.
Dynamic Algorithm
Dynamic algorithm for high-precision neutral-ground voltage monitoring: uses high-precision dynamic algorithm model with error-correction support, ensuring stable operation in demanding scenarios.
Multi-Level Menu
Powerful query management menu enables various local and cloud applications.
Output Alarm
Output alarm status: normal or abnormal; closed or open; output alarm control source: closed OR open output; alarm condition logic: set command or condition; output alarm control source: linkage control.
Comprehensive
Polling display: auto-switches electrical parameter display every 10s; module stays on the entered parameter screen; sampling accuracy: up to ±0.5%.
Plug-and-Play Integration
Highly integrated product for easy field installation without complex configuration; with dedicated gateway, only 20% of conventional workload is needed.
Selection Guide
Model Naming Rules
| Model | Power Supply | Display | Voltage | Neutral Input | DI Inputs | Relay Output | RS485 |
|---|---|---|---|---|---|---|---|
| ESP-12101-R | External 5V | OLED | Yes | Yes | 2 | 1 | Yes |
Technical Parameters
Basic Parameters
| Operating Voltage | DC 4.75~5.25V (5V) |
| Power Consumption | ≤2W |
| Operating Temperature | -20℃~60℃ |
| Operating Humidity | <95% |
| Weight | 150g |
| Dimensions | 36*110*69mm(L×W×H) |
| Enclosure Material | Thermoplastic UL94V0 |
| Protection Rating | IP20 |
| Mounting | Standard 35mm DIN rail |
| Display | OLED |
| Communication | RS485 |
| Protocol | Modbus |
Monitoring Functions
| Neutral-Ground Voltage | Monitoring range: 0-400V; accuracy: Class 0.5/0.2s |
| DI Input | Dry contact input, built-in power |
| DO Output | Relay output; contact capacity: AC250V/3A, DC30V/3A; normally open contact |
Installation Instructions
Installation Dimensions
Interface Diagram
Wiring Definition
| Terminal | Definition |
|---|---|
| 5V | 5V DC power input |
| GND | 0V |
| N | AC neutral input |
| PE | Ground (PE) |
| A | RS485 A |
| B | RS485 B |
| DI1 | DI 1 (other end to GND, no polarity) |
| DI2 | DI 2 (other end to GND, no polarity) |
| DO1 | Output (relay, no polarity) |
| DO1' | Output' (relay, no polarity) |
Key Points
- Definition： The ESP Neutral-to-Ground Voltage Monitor is FEXLINK's electrical safety device dedicated to N-PE voltage monitoring.
- Core Capabilities： Real-Time N-PE voltage monitoring with threshold alarms and RS485 upload, suitable for equipment-room and precision-equipment supply quality monitoring.
- Scenarios： Suitable for data centers, telecom equipment rooms and precision manufacturing sensitive to neutral-to-ground voltage.
- Related Products： ESA Electrical Safety Terminal, ESE Power Quality Monitor, SFA Multi-Element Controller.
Frequently Asked Questions
Product FAQ
What is ESP Neutral-to-Ground Voltage Monitor?
The ESP Neutral-to-Ground Voltage Monitor is FEXLINK's electrical safety device dedicated to N-PE voltage monitoring.
What scenarios does ESP Neutral-to-Ground Voltage Monitor apply to?
Suitable for data centers, telecom equipment rooms and precision manufacturing sensitive to neutral-to-ground voltage.
How does ESP Neutral-to-Ground Voltage Monitor differ from traditional solutions?
Compared with ordinary voltmeters, the ESP focuses on continuous N-PE voltage monitoring and alarming, helping O&M teams promptly address grounding issues.
How is ESP Neutral-to-Ground Voltage Monitor installed and integrated?
DIN-rail mount inside the distribution cabinet, connect N/PE terminals, and configure thresholds after wiring the RS485 bus.
How can I purchase FEXLINK products or request a demo?
Submit requirements via the Contact page on the FEXLINK website, or call +86-755-8653-6148 to request a demo and selection consultation; engineers will propose a matched solution and quotation based on your scenario.
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FEXLINK Business Scope
FEXLINK specializes in smart lightning protection and electrical safety, offering a product portfolio covering lightning protection, lightning online monitoring, lightning protection online monitoring, lightning arrester, intelligent lightning arrester, lightning arrester monitoring, grounding resistance, grounding monitoring for smart lightning protection scenarios, while addressing digital distribution, smart distribution, electricity meter, carbon neutral, industrial internet, carbon asset for digital business, helping enterprises achieve safe, efficient and low-carbon energy management.