Overview
AMC200(L)-12DE is a DIN-rail DC multi-circuit meter with an LCD display for up to 12 single-phase DC channels.
It measures voltage, current, power, and energy via Hall sensors. Features 4 NTC temp sensors, humidity sensor, and RS485/4G/NB IoT.
Suited for -48V DC base station monitoring
Highlight
Multi-Circuit DC Monitoring
- Up to 12 single-phase DC circuits
- Measures voltage, current, power
- Class 0.5 voltage/current accuracy
- Resolution: 0.01V, 0.01A, 0.01kW
- Compact design saves panel space
Hall Sensor Interface
- Built-in ±12V power supply
- Supports up to 12 Hall sensors
- Input: DC 5V from Hall sensors
- Easy connection via terminals
- No external power supply needed
Integrated I/O & Environment
- 2 active + 4 passive DI
- 2 relay outputs (250V/3A)
- 4 NTC temperature sensors
- 1 Temp.& Humi. sensor
- Multiple alarm functions
Local LCD Display
- 128×64 dot matrix LCD
- Real-time data view per circuit
- On-site parameter configuration
- Historical data browsing
- Alarm status indication
Function
| Function | Description |
| Multi-Circuit DC Measurement | Measures DC voltage, current, power, and energy for up to 12 single-phase circuits. Voltage range: DC -48V (nominal). Current input via Hall sensors with 5V output. Accuracy: voltage/current Class 0.5, power Class 1.0. Resolution: 0.01V, 0.01A, 0.01kW, 0.01kWh. |
| Digital Inputs | 6 channels: 2 active wet contact inputs (AC 220V) for mains/generator status, and 4 passive dry contact inputs for breaker or equipment status monitoring. |
| Relay Outputs | 2 channels of normally open relay contacts. Contact capacity: AC 250V/3A or DC 30V/3A. Supports remote control and alarm output modes. |
| Temperature & Humidity Monitoring | 4 NTC temperature sensors, range -20~100℃ (±2℃). One温湿度 sensor measures ambient temperature (-20~100℃, ±2℃) and humidity (20-90%RH, ±5%RH). |
| Hall Sensor Power Supply | Provides ±12V DC output to power up to 12 Hall current sensors. Eliminates need for external power supplies for sensors. |
| Mains Monitoring | One channel AC input detection (DC 0-5V) for monitoring mains power status. Configurable alarm thresholds. |
| Data Storage | Historical data storage: 60-minute interval (records), daily records, meter reading day records. Alarm history stores up to 500 events. |
| Communication | RS485 interface with Modbus-RTU or YD/T 1363 (China Tower) protocol. Optional 4G or NB-IoT wireless communication for remote monitoring applications. |
| Alarm Function | Supports DC over-voltage, under-voltage, primary power failure, module failure, AC input outage, and DI linkage alarms. Configurable thresholds and delays. |
| LCD Display Interface | 128×64 dot matrix LCD with backlight displays real-time electrical parameters per circuit, DI/DO status, temperature values, alarm information, and software version. On-site configuration via 4 buttons. |
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Specification
| Parameter | Value |
| Power Supply | DC 40～60V (nominal -48V), ≤2W (without Hall sensor load) |
| Voltage Input | 1 channel DC -48V (nominal); Overload: 1.2× rated (continuous), 2× rated/1s |
| Current Input | 12 channels via Hall sensors (5V output); Overload: 1.2× rated (continuous), 10× rated/1s |
| Measurement Accuracy | Voltage/Current: Class 0.5; Power: Class 1.0 |
| Resolution | Voltage: 0.01V; Current: 0.01A; Power: 0.01kW; Energy: 0.01kWh |
| Digital Inputs | 2 active (AC 220V) + 4 passive (dry contact) |
| Relay Outputs | 2 channels, NO contact; AC 250V/3A, DC 30V/3A |
| NTC Temperature | Range: -20～100℃, Accuracy: ±2℃ |
| Temp.& Humi. Sensor | Temp: -20～100℃ (±2℃); Humidity: 20-90%RH (±5%RH) |
| Hall Sensor Power | ±12V DC output, capable of powering up to 12 Hall sensors |
| Mains Monitoring | 1 channel DC 0-5V input for AC mains detection |
| Communication | RS485, Modbus-RTU or YD/T 1363; Optional 4G/NB-IoT |
| Baud Rate | 1200, 2400, 4800, 9600 |
| Display | 128×64 dot matrix LCD with backlight |
| Data Storage Interval | Default 60 minutes (configurable) |
| Operating Temperature | -20℃～+60℃ |
| Storage Temperature | -40℃～+70℃ |
| Relative Humidity | ≤98% (non-condensing) |
| Altitude | ≤4000m |
| Insulation Resistance | ≥40MΩ |
| Dimensions (W×H×D) | Refer to drawing (approx. 120×120×80 mm) |
| Mounting | DIN rail or screw mounting |
| Weight | Approx. 0.8 kg |
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FAQ
The AMC200L-12DE features an integrated LCD display for local data viewing and configuration, while the AMC200-12DE has no display and relies on remote communication.
Yes, you can navigate through each circuit using the buttons to view voltage, current, power, energy, and other parameters.
Press the SET button, enter the password (default 0001), and navigate the menu to modify settings such as CT ratio, alarm thresholds, communication parameters, etc.
Yes, the device shows real-time alarm status on the LCD, and you can view historical alarm records in the alarm information menu.
Yes, historical data such as 60-minute interval records and daily stored data can be browsed on the LCD.
It requires Hall effect current sensors with 5V output, such as AHKC series. The device provides ±12V power for the sensors.
Yes, the backlight time can be set from 0 to 300 seconds. Setting to 0 keeps the backlight always on.
Summary
AMC200(L)-12DE Combines 12-channel DC metering with a local LCD for easy on-site checks. Built-in sensor power and wireless capabilities deliver a complete, space-saving solution for reliable telecom and data center DC monitoring
