DC Digital Voltmeter AMC72L-DV
Products Description
AMC series programmable intelligent meters,adopting AC sampling technology,can directly or indirectly measure electric voltage and current of single phase or three phase grid. It can be used for local display,and connecting industrial control device to form measuring control system. This series of meters have RS-485 port,adopt Modbus-RTU protocol. Analog output,alarm output,switching input/output can be selected. Based on different request,by pressing the keys,parameters of ratio,alarm,communication etc. can be modified.
● DI/DO Function: 2-channel DI&2-channel DO optional
● Communication: RS485 (MODBUS-RTU) optional
Technical Parameter
1. Function Overview
Function | Description&Value |
Measurement | Three-phase AC kWh, kVarh, Active Power, Reactive Power, Forward&Reverse Power, Current, Voltage, Zero Sequence Voltage, Zero sequence Current, Voltage-phase Angle, Voltage&Current Unbalance, Power Factor,Harmonic, Frequency |
Display | LCD display |
Communication (Optional) | RS485,Modbus-RTU protocol;(1 start bit,8 data bit,1 stop bit,no parity) Baud Rate 1200~38400 bps etc. |
Alarm Output (Optional) | 1 channel passive relay,contact capacity 3A/30VDC,3A/250VAC, Used for high,low,unbalance alarm etc. |
Analog Output (Optional) | 1~5V DC or 4~20mA DC |
DI/DO Switching (Optional) | DI (Digital input): 2-channel or 4-channel dry contact digital input with built in power supply DO (Digital output): 2-channel digital output with NO relay contact. Capacity: 3A/30V DC,3A/250V AC |
2. Main Parameters
Parameter | Description&Value | ||
Input | Rated Voltage | AC Voltage Input: 400V AC L-L (via direct connetion); 100V AC L-L (via -/100V AC PTs) | |
Rated Current | AC Current Input: 5A AC or 1A AC (via -/5A AC or -/1A AC CTs) | ||
Overload | Current&Voltage input overload:1.2 times rated value(continuous); 10 times rated value /1 second | ||
Frequency | 45~65Hz | ||
Power Consumption | Power consumption of each current&voltage input circuit is less than 0.5VA | ||
Measuring Accuracy | Voltage | 0.2% | |
Current | 0.2% | ||
Active Power | 0.5% | ||
Reactive Power | 1.0% | ||
kWh | 0.5% | ||
kVarh | 1.0% | ||
Frequency | ±0.05Hz | ||
Harmonic | ±1% | ||
Power Supply | Voltage Range | 85-265V AC/DC; 24V or 48V DC (±20%) | |
Power Consumption | ≤10VA | ||
Insulation resistance | ≥ 100MΩ | ||
Power frequency withstand voltage | Between Power supply//Switching Output// Current Input//voltage Input and Transmitting// Communication //Pulse Output//switching input AC 2 kV 1min; Between Power supply、switching output、Current Input、voltage Input AC 2 kV 1min; Between Transmitting、Communication、Pulse Output、switching input AC 1kV 1 min; | ||
3. Environment
Condition | Description&Value |
Temperature | Operation: -25℃～+65℃; Storage: -40°C ~+80°C |
Humidity | ≤95%RH,no condensation,without corrosive gas |
Altitude | ≤ 2500m |
Wiring Illustration
DC Voltage Signal (0~10V DC) Input via -/10V DC Transducer
DC Voltage Signal (300V DC) Input via direct Connection
DC Voltage Signal (1000V DC) Input via direct Connection
Dimension & Installation
Certification
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