RS485 Port with Modbus-RTU 0.5 Accuracy low voltage dc voltmeter controller voltage meter for sale
Negotiable
Min.Order:1
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 |
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; |
Condition | Description&Value |
Temperature | Operation: -25℃~+65℃; Storage: -40°C ~+80°C |
Humidity | ≤95%RH,no condensation,without corrosive gas |
Altitude | ≤ 2500m |