AC Digital Meter

AC Digital Meter
1.Brief Introduction
DTSF/U353 is a three phases four wires digital energy meter with current transformer, LCD backlight, IR & RS485 communication ( protocol EN62056:IEC1107 & DLT645:2007 ) and tariff, which can measure and record the active energy consumption of load in 50Hz single phase AC power grid
2.Technical Parameter of 3P Din Rail Meter
Ref. voltage 3*220/380V
Ref. current 3*1.5(6)A
Impulse constant 12000imp/kWh
LCD display LCD5+3
Operation temp. -20~+70℃
Storage temp. -40~+80℃
Relative humidity ≤90%
Ref. frequency 50Hz
Accuracy class Cl.1,CI.2
Starting current 0.2%/Ib(CI.1)
Creeping Anti-creep logistic design
Power consumption ≤ 2W,<10VA
Standard compliant Performance test: GB/T 17215.321-2008 GB/T 17215.211-2006
Protection degree: GB/T20138-2006
 
3. Function Description
3.1 Din Rail Energy Digital Meter Metering Function
Active & reactive energy, forward & reverse measurement
3 elements settable (positive,positive+negative,positive-negative)
CT ratio range: 5:5 ~7500:5
(5:5,40:5,50:5,60:5,75:5,100:5,125:5,150:5,200:5,250:5,300:5,400:5,500:5,600:5,800:5,1000:
5,1250:5,1500:5,2000:5,2500:5,3000:5,4000:5,5000:5,6000:5,7500:5)
5:5----40:5        LCD=5+3;
50:5----300:5     LCD=6+2;
400:5----3000:5  LCD=7+1;
4000:5----7500:5  LCD=8+0;
Support max demand
Support resetting energy
Support setting holiday tariff & weekend tariff
3.2 Communication Function
Support IR communication, EN62056 (IEC1107) protocol
RS485 Communication, DLT 645:2007 protocol
3.3 Measuring Devices meter wholesale Display Function
Displaying total energy, tariff energy, 3 phases voltage, 3 phases current, power, apparent power, power factor, frequency, demand, ct ratio, impulse output, communication address etc.
Plz refer to LCD display part
3.4 Keypad Function
Selecting display content, setting CT ratio, LCD scrolling period and resetting energy & backlight type via 2 keypads.
Setting content of automatic scrolling mode via IR
3.5 Backlight Display
Support 3 types of displaying can be set via keypads:
Selecting lighting when pressing the key / normal bright / normal dimmed
3.6 Din Rail Meter Impulse Output
Support 4 types of impulse output method via communication:
Selecting 12000 / 1200 / 120 / 12