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AC Voltmeter Voltage Meter with 0.5S Accuracy Class RS485 Communication Interface and 3000 VAC Isolation Voltage
AC Voltmeter
Technical Specifications
Parameter
Specification
Accuracy Class
0.5S
Display Precision
Four and a half digits (≥100 A: positive value; <100 A: one decimal place)
Input Range
Adjustable: 300V, 500V
Overload Capacity
Continuous operation at 1.2 times rated voltage, and at 2 times rated voltage for 1 second
Response Speed
≤ 1 second
Impedance
≥ 1MΩ
Power & Communication
Power Source:AC (50–60 Hz); DC 80–300 V or DC 16–75 V
Power Dissipation:≤ 2W
Communication Interface:RS485 with standard MODBUS-RTU protocol
Alarm Output:One normally open contact for overvoltage alarm; one normally closed contact for undervoltage alarm
Analog Output:4–20 mA (optional)
Insulation & Reliability
Isolation Voltage:Power supply – ground, input, output, communication port: 3000 VAC; Communication port – ground: 750 VAC
Insulation Resistance:≥ 100MΩ
MTBF:≥ 50,000 hours
Environmental Conditions
Working Temperature:-25℃ to +55℃
Storage Temperature:-25℃ to +85℃
Humidity Environment:<95% humidity, no corrosive gases
Altitude:< 2500m
Open Hole Size:93 * 45mm
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2024
Total Annual:
80million-100million
Employee Number:
>200
Ecer Certification:
Verified Supplier
Company Profile
Shenzhen Hongyi Technology Co., Ltd. is a high-tech enterprise dedicated to the R&D, and commercial application of advanced power supply system and next-generation energy storage solutions. Headquartered in Shenzhen—a global hub of innovation and manufacturing—we har...
Company Profile
Shenzhen Hongyi Technology Co., Ltd. is a high-tech enterprise dedicated to the R&D, and commercial application of advanced power supply system and next-generation energy storage solutions. Headquartered in Shenzhen—a global hub of innovation and manufacturing—we har...