Sfere720B 96*96mm digital bidirectional 3 phase ac energy meter lcd display

Working environment  

Working temperature

-10°C to 55°C

Storage temperature

-25°C to 70°C

Relative humidity 

≤95% RH, no condensation

Working altitude

≤2500m

Protection degree

Front case IP64, rear case IP20.

Insulation

Between signal, power supply, output terminal to case resistance >100MΩ

Working power supply

Rated range

AC/DC(20~300)V

Power consumption 

≤5VA

Withstand voltage

≥2kV

Voltage input 

Rated range

230V/400V(continuous: 1.2Un)

Resolution

0.1 V

Impedance

1.6 MΩ/per phase

Power consumption

≤0.1 VA /per phase

Over voltage

Instantaneous:2 times/10s

Frequency

45-65 Hz

Current input

Range

5A/1A, (continuous: 1.2In)

Resolution

1 mA

Impedance

≤20mΩ/per phase

Power consumption

≤0.2 VA/per phase

Over current

Instantaneous:10 times/5s

Relay output

Capacity

5A/250 VAC;  5A/30 VDC

Isolation voltage

Between contact and coil: 2000 VAC / min

Action time

10 ms max

Release time

5 ms max

Mechanical service life

10⁶  times

Energy pulse output

Pulse width

80ms±20%

Max. terminal voltage

35V

Max. terminal current 

10mA

Pulse frequency

≤10Hz

Digital input

Sensitivity

ON:140~270V AC, OFF: <110 V AC

Isolation voltage

5000 VAC (1 min)

Scanning time

1 ms

Wave filtering time

30 ms

Communication interface

Physical interface

RS-485

Communication speed

Up to 115.2 kbps 

Communication protocol

Modbus-RTU

Isolation voltage

2000 VAC (1 min)

Real-time clock

Error

≤0.5s/day