LU-193 Multi-Function Power Meter

1. Brief introduction
LU-193 intelligent multi-function power meter is for measuring of three-phase power parameters, it has many functions, such as: programming, automatic measuring, Stroke segment LCD display, multi-rate energy accumulation, energy demand measuring, digital communication and so on. It can transform three-phase AC value into standardized digit value according to the linear relation. It has characteristic of digitization, intelligentization & networking, which makes the measuring process and the data analysis processing realizing automation, reduces human error. The power meter can comprehensively substitute power transducer, KWh meter, digital display meter, data acquisition unit and so on; it is an ideal product for the electric automatic system. It has compact structure, advanced circuit & powerful measuring function; it is a revolutionary design to the traditional meters.
LU-192 intelligent power meter is widely used in fields of electric device, automation control system and dispatching system, in industries of Power, Post and Telecommunication, Petroleum, Coal, Metallurgy, Railroad, Municipal administration, intelligent building…

2. Main technical parameters
Accuracy:
Current/voltage: 0.2% RD; power: 0.5% RD; energy: 1.0% RD
Display: Stroke segment LCD
Measurement parameters:
Phase voltage, line voltage, current, active power, reactive power, apparent power, power factor, power factor angle, active electric energy, reactive electric energy, frequency
Input
Voltage: Rated voltage: AC420V/AC100V
Over load: continued: 1.2 times; instant: 2 times (10 seconds)
Power consumption: <0.5VA (per phase)
Impedance: >1M (per phase)
Current: Rated current: AC5A/AC1A
Over load: continued: 1.2 times; instant: 10 times (5 seconds)
Power consumption: <0.4VA (per phase)
Impedance: <20m
Frequency: 45~65Hz
Output:
Communication: RS232 or RS485
RS232 printer interface
EP: Electric energy pulse output
Connection mode:
3-phase 4-line, 3-phase 4-line balance load, 3-phase 3-line, 3-phase 3-line balance load, 1-phase 2-line, 2-phase 3-line
Multi-rate energy accumulation: 12 time slots, 4 rates and 4 programs
Demand energy: U, I, P, Q, S slip
Power: AC85～265VDC85～330V (standard)
AC30～60VDC18～90V (optional)
Consumption: <4VA
Communication: RS485/RS232 communication interface
Modbus-RTU protocol
EMC
Surge immunity test: GB-T 17626.5-1998 (Ⅳ)
EFT test: GB-T 17626.4-1998 (Ⅳ)
Radio-frequency, electromagnetic field immunity test: GB-T 17626.2-1998 (Ⅲ)
Electrostatic Discharge Immunity Test: GB-T 17626.6-2008 (Ⅳ)20100831
GB-T 17626 is in accordance with IEC 61000.
Working environment: temperature: -10℃～+55℃; humidity: 20%～95%, without condensation
Storage environment: temperature: -25℃～+85℃; humidity: 20%～95%, without condensation