DM194E-2S4 series digital multimeter

Easy installation
Easy use
Easy programmable

DM194E-2S4 series multifunctional electrical power monitor instrument is better
equipment, which applies to electrical power quality monitor. This instrument has the
function of simultaneous measurement the current, voltage, frequency, active power,
reactive power, apparent power, electric energy, and power factor in the electrified
wire netting. It applies to the distributivity inspection of the transformer, generating
set, capacitor bank and motor group; and displays the monitor outcome of the
electrified wire netting and the automation control system.

DM194E-2S4 series multifunctional electrical power monitor instrument can
substitute for many traditional simulation or digital measurement instruments, such as
current meter, voltage meter, wattmeter, power factor meter, frequency meter. It can
greatly reduce the cost, make the arrangement of wires convenient, and improve the
security of the system. The multifunctional electrical power monitor instrument has
serial port (RS485 or RS232), permitting connection and optimistic mode computer
network; apply Modbus communication stipulation, make the setting of the
programming or information obtaining convenient.

Typical application
The measurement of all the quantity of electricity
The measurement &control of the most demand, power factor
Electrical power measurement
Replacing three-phase measuring instrument, three-phase quantity of
electricity transmitter
The distributivity inspection of transformer, generating set, capacitor bank
and motor group
Medium voltage &low voltage system
SCADA, EMS, DCS, integration manufacturer
Commercial application &industrial application

3.Function introduction
1). The measurement of the quantity of electricity
Phase voltage: Ua, Ub, Uc (three phases & four wires)
Line voltage: Uab, Ucb (three phases &three wires)
Current: Ia,Ib,Ic
Active power: Pa,Pb,Pc,Psum (active ,phase splitting power full power)
Reactive power: Qa,Qb,Qc,Qsum (reactive, phase splitting power &full power)
Apparent power: Sa,Sb,Sc,S (apparent phase splitting power & full power)
Power factor: Pfa,Pfb,Pfc,Pf (phase splitting &average power factor)
Frequency: F

2). Electrical power measurement
Active electrical power: +WH, -WH (forward direction &reverse direction
active electrical power)
Reactive electrical power: +varH, -varH (forward direction &reverse direction
reactive electrical power)

3). Output pulse
Two ways photon coupling output separated from pulse (Wh, varH)
output photon coupling, link with the upward pull resistance R=Vcc/5mA,Vcc
=5V/12V/24V

4). Measurement way
Three phases, four wires &three phases, three wires can be selected
PT transformation ratio: 15000.0
CT transformation ratio: 12000.0

5). Display
LED/(red), three rows, each row has five alphabets
The way of display can be set to manual or automatic scan

6). Communication interface port
one communication port: RS485 RS232
MODBUS communication stipulation RTU mode
Baud rate: 1.2k/2.4k/4.8k/9.6k/19.2k
Address: 1254

4. Technical specification

Parameter Accuracy A phase B phase C phase Quantum Average
Voltage 0.5%fs V1 V2 V3 VE
Current 0.5%fs A1 A2 A3 AE
Active power 0.5%fs W1 W2 W3 W
Reactive power 0.5%fs var1 var2 var3 var
Apparent power 0.5%fs VA1 VA2 VA3 VA
Power factor 0.5%fs PF1 PF2 PF3 PF
Active electrical power 1%rd Wh
Reactive electrical power 2%rd varh
Frequency 0.2%rd Hz

2). Input range
Voltage: 100V/220V/380V
current: 1A 5A
power: the most 6500W/var/VA
Frequency: 45-65Hz

3). Load
Voltage: <1.0VA/phase
Current: <0.4VA/phase

4). Over loading
Current: 1.2times rated continuity 10times rated 10 sec
Voltage: 1.2times rated continuity 2times rated 10 sec

5). Dielectric strength
IEC 688 / IEC 255-3 (1989)
2kV AC rms 1 min,input/crust/between the electrical source

6). Electromagnetic compatibility test
Electrostatic discharge anti-jamming test: IEC-61000-4-2 4level
Electricity fast transient pulse group anti-jamming test: IEC61000-4-4 3level
Impulse anti-jamming test: IEC61000-4-5 4level
Voltage dip, short-term interruption, voltage variation anti-jamming test:
IEC61000-4-11

7). Work condition
Temperature: -20+60
Humidity: RH 20%95%no condensation

8). Storing condition
Temperature: -25+70
Humidity: RH 20%95%

9). Work electrical source
AC 80-260V, 40-70Hz, DC 80-330V
DC 20-60V (optional)
The most power waste 6W

10). Outline, mounting and dimension
L×W×H=120mm×120mm×130mm

11). Trepanning size
L×W=110+1mm×110+1mm