Table of Contents
Code and Implication
Model Code: ZM-3V
| Code | Implication |
|---|---|
| ZM | Zhiming brand |
| 3 | Three-phase measurement |
| V | Voltage meter (for measuring AC voltage) |
Application
ZHIMING brand of ZM-3V digital meter is designed for high-precision measurement of three-phase AC voltage, typically used in power distribution cabinets and electrical control systems.
- High-precision measurement of three-phase AC voltage
- Digital tube display with local data query functionality
- Programmable voltage ratio
- Supports RS-485 communication with Modbus-RTU protocol
- Supports switch input/output and analog signal output
- Auxiliary power supply: AC/DC 80V–270V or AC 220V
- Available in various form factors to suit different cabinet wiring requirements
Compliance Standards
- GB/T 22264.1-2008 – Mounted digital display electrical measuring instruments – Part 1: Definitions and general requirements
- GB/T 22264.7-2008 – Part 7: Special requirements for multi-functional meters
- GB/T 22264.8-2008 – Part 8: Recommended test methods
- GB/T 17215.322-2008 – AC static active energy meters (Class 0.2S and 0.5S)
- GB/T 17215.323-2008 – AC static reactive energy meters (Class 2 and 3)
- Multi-functional energy meters
- Electrical fire protection detector
- Code for Fire Protection Design of Tall Civil Buildings
- Code for Low Voltage Distribution Design
- Code for Residential Building Design
- Installation and Operation of Residual Current Devices (RCDs)
- Code for Building Fire Protection Design
Technical Specifications
Accuracy of measurement
Voltage: class 0.5
Auxiliary power supply
Working Voltage: AC/DC 80V~270V, AC220V
Power consumption: <4VA
Function module
Communication interface 1 way RS-485 communication, Modbus-RTU protocol
baud rate:1200~9600bps, the default 2400bps
Switch input: support 4 steps node input
Switch output: support 3 relay outputs, capacity: AC 250V/5A, DC 30V/5A
Transmission output: support 3 analog outputs: 0/4~20mAor 0~5/10V
Environment
Working temperature: -10℃~+55℃
Storage temperature: -25℃~+70℃
Relative humidity is less than 93%, no corrosive gas
Altitude: 2500m
Safety
Insulation resistance>100MΩ
AC withstand voltage AC 2KV
Electromagnetic compatibility
ESD: Class 4
Electrical fast transient burst: Class 4
Surge(impact): Class 4
Signal input
Connection mode: Three-phase four-line, three-phase three-line
Rated voltage : AC 57.7V AC 100V AC 220V AC380V
Overload: 1.2 times(Continued), 2 times/second (instantaneous)
Power : <1VA/phase
Impedance : >300KΩ
Frequency: 45~65Hz
