ESA SMART METER
The ESA Multi-Parameter Smart Meter
Full-Parameter Electrical Smart Module
Integrates power metering, power quality analysis, and smart control. Supports multi-protocol access, providing full-parameter sensing for refined energy data management and smart O&M. Exclusive software self-calibration ensures accuracy remains stable for 10+ years.
Product Overview
Product OverviewThe ESA Multi-Parameter Smart Meter uses a dedicated metering chip and high-precision sensors to achieve dynamic sensing of up to 40+ variables. Dedicated to low-voltage three-phase circuit electrical parameter monitoring, can monitor Voltage, Current, power, power factor, energy consumption and other parameters. Supports over-voltage, over-current, phase loss, DI linkage and other alarm outputs. Exclusive software self-calibration ensures accuracy remains stable throughout the service life (typically 10+ years), avoiding "data depreciation" and replacement costs due to accuracy degradation.
Product Features
Key FeaturesComprehensive Monitoring
Monitors three-phase voltage/current (external CT), frequency, three-phase power, total power (active, reactive, apparent), three-phase power factor and other full parameters
Key Parameters Expansion
High-speed chips capture key parameters accurately, quickly, and stably, enabling early prediction while adding more parameters, supports 0-2000A metering
All-Climate Sensor
Non-contact split-core sensors operate stably under strong electromagnetic interference
Comprehensive Output Alarm
Output alarm status normal, can write control output alarm settings: open/close, configurable control
Compact and Flexible
Supports linkage control; standard OLED display and physical buttons for convenient on-site query and configuration; RS485 communication, Modbus; 36mm compact width
High Accuracy
Default Class 0.5, with split-core sensors up to Class 0.2s, current monitoring range 0-6000A
Product Advantages
Product AdvantagesPermanent Online Accuracy
Core measurement accuracy reaches Class 0.2S, far exceeding common Class 1.0 meters. Exclusive software self-calibration enables remote or local calibration after accuracy drift, reducing maintenance costs by 90%.
All-in-One
70+ electrical data parameters, DC5V/AC220V dual power supply, integrated 2-channel DI/1-channel DO/RS485. Highly integrated design replaces multiple devices in traditional solutions, improving installation efficiency by 50%.
Smart Sentinel
From monitoring, alarm to automated response. Supports auto-linkage of 8 alarm sources, going beyond simple threshold alarms to enable complex logic such as "overcurrent AND door open", and auto-starts fans and alarms.
Complete Data Dictionary
Complete address table with 200+ readable/writable registers. All parameters, data, and settings are fully transparent. Standard Modbus-RTU protocol enables direct access from SCADA/BA/EMS/cloud platforms.
Ultimate Interactive Experience
High-brightness OLED display with smart menu, red/green/pulse tri-color independent indicators. Device status and alarm categories can be accurately identified within 0.1s from 10 meters away.
Wide-Temperature Reliable Operation
-20°C~60°C wide-temperature operation, UL94V0 flame-retardant material, 50,000 hours MTBF. Pluggable terminals enable tool-free wiring, improving efficiency by 80%.
Selection Guide
Model Selection GuidePosition 1 · Power
1=DC5V
2=AC220V
Position 2 · Display
1=7-segment
2=OLED
Position 3 · Wiring
1=Three-phase four-wire
Position 4 · Current Parameter
1=0~5A
2=0~100A
3=0~400A
4=0~600A
Position 5 · I/O
1=1-channel relay output
2-channel digital input
R · Communication
RS485
Selection Table
| Model | Power Supply | Display | Current | Voltage | Other Parameters | DI Inputs | Relay Output | RS485 MODBUS |
|---|---|---|---|---|---|---|---|---|
| ESA-12111-R | DC5V | OLED | 0~5A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-12121-R | DC5V | OLED | 0~100A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-12131-R | DC5V | OLED | 0~400A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-12141-R | DC5V | OLED | 0~600A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22111-R | AC220V | OLED | 0~5A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22121-R | AC220V | OLED | 0~100A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22131-R | AC220V | OLED | 0~400A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22141-R | AC220V | OLED | 0~600A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
Other electrical parameters include: frequency, power, power factor, etc.
Technical Parameters
Technical SpecificationsBasic Parameters
| Parameter | Specification |
|---|---|
| Operating Voltage | DC 4.75~5.25V(5V) / AC 180~250V(220V) |
| Operating Temperature | -20℃ ~ 60℃ |
| Weight | 150g |
| Enclosure Material | Thermoplastic UL94V0 |
| Mounting | Standard 35mm DIN rail |
| Communication | RS485 |
| Power Consumption | ≤2W |
| Operating Humidity | <95% |
| Dimensions | 36×110×69mm(L×W×H) |
| Protection Rating | IP20 |
| Display | OLED |
| Protocol | Modbus |
Monitoring Functions
| Parameter | Specification |
|---|---|
| Voltage (AC) | Rated 220V/380V, overload 1.2x (continuous)/2x (1s), Accuracy Class 0.5/0.2s |
| Current (AC) | Rated 5A/100A/400A/600A, overload 1.2x (continuous)/2x (1s), Accuracy Class 0.5/0.2s |
| Frequency | 45~65Hz, accuracy 0.01Hz |
| Active Energy | Accuracy Class 1 |
| Reactive Energy | Accuracy Class 2 |
| DI Input | Dry contact input, built-in power |
| DO Output | Relay output, contact capacity AC250V/3A DC30V/3A, normally open contact |
Installation Instructions
Installation GuideInstallation Dimensions
Dimensions
Standard 35mm DIN rail mounting, Dimensions: 36×110×69mm(L×W×H)
Sensor Description
Sensor Description5A Sensor
Current Ratio 5A/0.33V
Aperture 16mm
100A Sensor
Current Ratio 100A/0.33V
Aperture 24mm
400A Sensor
Current Ratio 400A/0.33V
Aperture 36mm
600A Sensor
Current Ratio 600A/0.33V
Aperture 36mm
Interface Diagram
Interface Description