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DIN-rail Type Power Meter
Operation Manual
This manual is applied to the following model:
DTS1946
JIANGSU SFERE ELECTRIC CO., LTD.
1
1. Introduction
DIN-rail type electric energy meters are designed and produced according to user’s real
electricity consumption situation by adopting advanced energy measurement IC and using digital
sampling processing and SMT technologies. They adopt modularity structure with the features
such as small volume, convenient installation and reliable working.
2.Naming rule
3.Model Selection
Model
Function
Three phase power meter
DTS1946
Wiring mode
Single phase -
Three phase three wire -
Three phase four wire √
Voltage
range
220V -
3×220V/380V √
3×380V -
Current
specification
Direct input 5(100)A
D T S F 1946
registed number
function code
Null: omit
F : multi-rate
D : multi-function
electronic type
wiring mode:
T: three phase four wire
S: three phase three wire
D: single phase
power meter
2
Input via CT 1.5(6)A
Real-time
measurement
Voltage & current √
Power √
Power factor √
Frequency √
THD √
Energy
metering
Bi-directional energy √
Four-quadrant energy -
Multi-rate energy -
Demand -
Events record -
Communication
interface
RS485 ○
Energy pulse √
Display mode LCD
Note: in the upper format, √ means the function is available; - means the function is not available; ○ means the function
is optional.
4.Technical index
Electrical feature
Model
Function
DTS1946
Accuracy Voltage, current: 0.5 Class; Power, active energy: 1 Class
Rated voltage 3×220/380V
Input current
Direct input 5(100)A
Input via CT 1.5(6)A
Frequency 50/60 Hz
Wiring mode 3P4W
Voltage range 0.8Un ~ 1.2Un
Consumption
voltage circuit
consumption
< 5VA
3
current circuit
consumption
< 2VA
Start current
direct input 0.004Ib
input via CT 0.002In
Energy pulse
One optoelectronic isolation output,
pulse width(80±20%)ms
RTC error ≤0.5s/day
Communication feature
RS485 port
Modbus-RTU protocol,baud rate up to 9600bps
DL/T 645 protocol,baud rate up to 9600bps
Mechanical feature
Dimension 126×90×63.5
IP protection IP54(front case)/IP20(rear case)
Environment feature
Work temperature (-10~55)℃
Storage temperature (-25~70)℃
Relative humidity (5~95)%(no condensation)
EMC
Electrostatic discharge immunity IEC 61000-4-2-III class
Radiated, radio-frequency, electromagnetic field immunity IEC 61000-4-3-III class
Electrical fast transient/burst immunity test IEC 61000-4-4-Ⅳ class
Surge immunity IEC 61000-4-5-Ⅳ class
Immunity to conducted disturbances, induced by radio-frequency
fields
IEC 61000-4-6-III class
Power frequency magnetic field immunity IEC 61000-4-8-III class
Voltage dips, short interruptions and voltage variations immunity IEC 61000-4-11-III class
5. Installation and wiring
5.1 Outline dimension
4
Three phase meter outline dimension (mm)
front view side view
5.2 Installation method
DIN rail
installation support
35mm

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Electric Energy Meters in USA

  • 1. DIN-rail Type Power Meter Operation Manual This manual is applied to the following model: DTS1946 JIANGSU SFERE ELECTRIC CO., LTD.
  • 2. 1 1. Introduction DIN-rail type electric energy meters are designed and produced according to user’s real electricity consumption situation by adopting advanced energy measurement IC and using digital sampling processing and SMT technologies. They adopt modularity structure with the features such as small volume, convenient installation and reliable working. 2.Naming rule 3.Model Selection Model Function Three phase power meter DTS1946 Wiring mode Single phase - Three phase three wire - Three phase four wire √ Voltage range 220V - 3×220V/380V √ 3×380V - Current specification Direct input 5(100)A D T S F 1946 registed number function code Null: omit F : multi-rate D : multi-function electronic type wiring mode: T: three phase four wire S: three phase three wire D: single phase power meter
  • 3. 2 Input via CT 1.5(6)A Real-time measurement Voltage & current √ Power √ Power factor √ Frequency √ THD √ Energy metering Bi-directional energy √ Four-quadrant energy - Multi-rate energy - Demand - Events record - Communication interface RS485 ○ Energy pulse √ Display mode LCD Note: in the upper format, √ means the function is available; - means the function is not available; ○ means the function is optional. 4.Technical index Electrical feature Model Function DTS1946 Accuracy Voltage, current: 0.5 Class; Power, active energy: 1 Class Rated voltage 3×220/380V Input current Direct input 5(100)A Input via CT 1.5(6)A Frequency 50/60 Hz Wiring mode 3P4W Voltage range 0.8Un ~ 1.2Un Consumption voltage circuit consumption < 5VA
  • 4. 3 current circuit consumption < 2VA Start current direct input 0.004Ib input via CT 0.002In Energy pulse One optoelectronic isolation output, pulse width(80±20%)ms RTC error ≤0.5s/day Communication feature RS485 port Modbus-RTU protocol,baud rate up to 9600bps DL/T 645 protocol,baud rate up to 9600bps Mechanical feature Dimension 126×90×63.5 IP protection IP54(front case)/IP20(rear case) Environment feature Work temperature (-10~55)℃ Storage temperature (-25~70)℃ Relative humidity (5~95)%(no condensation) EMC Electrostatic discharge immunity IEC 61000-4-2-III class Radiated, radio-frequency, electromagnetic field immunity IEC 61000-4-3-III class Electrical fast transient/burst immunity test IEC 61000-4-4-Ⅳ class Surge immunity IEC 61000-4-5-Ⅳ class Immunity to conducted disturbances, induced by radio-frequency fields IEC 61000-4-6-III class Power frequency magnetic field immunity IEC 61000-4-8-III class Voltage dips, short interruptions and voltage variations immunity IEC 61000-4-11-III class 5. Installation and wiring 5.1 Outline dimension
  • 5. 4 Three phase meter outline dimension (mm) front view side view 5.2 Installation method DIN rail installation support 35mm