Overview
The AMC16-DETT is a DC energy metering module specifically designed for shared telecommunication base stations. It independently measures voltage, current, power, and energy across six DC circuits, and features a built-in ±12V power supply for Hall sensors. Ideal for multi-operator energy allocation in base stations, DC monitoring in data centers, and industrial DC systems.
Highlight
Multi-Circuit DC Metering
- 6 independent DC metering channels
- Default: Total, Mobile, Unicom, Telecom, 2 reserved
- Customizable channel-user assignment
- Ideal for multi-operator energy allocation
High Accuracy Measurement
- ±2.5% accuracy for 1%In~10%In, ±2% for I＞10%In
- Voltage resolution 0.01V, current 0.01A
- Power resolution 0.01kW, energy 0.01kWh
- Compliant with China Tower Q/ZTT 2205-2017
Smart O&M with Alarms
- 2MB memory for historical energy and alarms
- Alarms: voltage anomaly, power-off, module fault
- Remote time synchronization and parameter setting
- Monthly frozen energy for billing analysis
Easy Installation & Integration
- 35mm DIN rail mounting, compact design
- Built-in ±12V Hall power, no external supply
- RS485 with YD/T1363.3 and Modbus-RTU protocols
- Plug-in terminals, split-core Hall sensor
Function
| Measurement | Metering | Others |
| DC Voltage (6 channels) | Total & Branch DC Energy | 6 independent circuit config |
| DC Current (6 channels) | Import/Export Energy | Historical data storage (2MB) |
| DC Power (6 channels) | Monthly Frozen Energy | Alarm logging |
| Power Factor | Sub-item Energy Statistics | Broadcast time sync |
| Frequency | Four-quadrant Reactive Energy | RS485 (YD/T1363.3 / Modbus) |
| AC Mains Monitor (AMC16-DETT/AI: 4-20mA input) | Hall sensor power (±12V/100mA; -12V/50mA) |
Specification
| Item | Parameter |
| DC Input Voltage | Rated -48VDC, range -40V～-60VDC |
| DC Current Input | 6 Hall sensors: total 200A/5V, Mobile/Unicom/Telecom/reserved 50A/5V or 100A/5V (specify when ordering) |
| AC Mains Input | 1 channel 0-5VDC or 4-20mA (AMC16-DETT/AI only) |
| Overload Capability | Voltage: 1.2x continuous, 2x for 1s; Current: 1.2x continuous, 10x for 1s |
| Accuracy | ±2.5% for 1%In≤I≤10%In; ±2% for I＞10%In |
| Measurement Resolution | Voltage 0.01V, Current 0.01A, Power 0.01kW, Energy 0.01kWh |
| Auxiliary Power | -40V～-60VDC, consumption ≤2W (without Hall load) |
| Hall Sensor Power | +12V/100mA, -12V/50mA |
| Data Storage | 2MB for historical energy and alarms |
| Clock Accuracy | ≤0.5s/day (23℃), ≤1s/day (-20℃～60℃) |
| Insulation Resistance | ≥40MΩ |
| Operating Environment | Temp -20℃～+60℃, humidity ≤98% non-condensing, altitude ≤4000m |
| Protection Grade | IP20 |
| Dimensions | 89.7 × 87.8 × 52 mm (excl. terminals) |
| Mounting | 35mm DIN rail |
| Communication | RS485, baud rate 1200/2400/4800/9600bps adjustable, protocols YD/T1363.3-2014 / Modbus-RTU |
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FAQ
The AMC16-DETT is designed to work with open-loop Hall sensors with 5V output. Choose the model based on the current range: for the total circuit, recommend 200A/5V (AHKC-K, aperture 64×16mm); for branches like Mobile/Unicom/Telecom, recommend 50A/5V (AHKC-EKA, aperture Φ20mm) or 100A/5V (AHKC-EKB, aperture Φ40mm). Connect the sensor output wires to terminals 37/38/39.
The module supports zero calibration via PC software or Modbus communication. When there is no current in the circuit, send a command (e.g., write 0x8801~0x88FF to Modbus address 12) to correct zero drift for each Hall sensor, ensuring accuracy at low currents.
First, check if the RS485 A/B wires are crossed and if the termination resistor matches. Then confirm the module address and baud rate (default 9600) are consistent with the host. If multiple units fail, test a single unit.
Please verify: 1) The Hall sensor’s through-hole direction matches the label. 2) The sensor output negative (GND) is connected to module GND. 3) The current ratio is correctly set (Modbus addresses 5~10 or via menu). 4) Sensor power supply (+12V/-12V) is normal.
Check if auxiliary power terminals 1 and 2 are connected to -48V DC with correct polarity. If the built-in supply is overloaded by Hall sensors, use an external power supply for the sensors.
The current ratio can be modified via Modbus registers 5~10 (for channels 1~6) or via the LCD menu (AMC16L-DETT). Default value is 40, corresponding to 200A full scale for a 5V output Hall sensor (5V×40=200A). If using a 50A sensor, set the ratio to 10 (50A/5V=10).
Summary
The AMC16-DETT offers six independent DC metering channels, high accuracy, and standard RS485 communication, solving energy allocation challenges in multi-operator base stations. Built-in Hall sensor power simplifies wiring, while 2MB storage logs historical data with alarm support for remote maintenance—providing reliable data for energy saving and digital management.
