Based on the measurement of RMS, the rail-mounted DTSD63 instrument accurately monitors extremely nonlinear loads. It can precisely measure a number of power parameters, such as voltage/current, frequency, power, power factor, energy, and current/voltage harmonics, thanks to advanced grid frequency simultaneous sampling technology.
In contrast to conventional energy meters, the DTSD63 boasts cost-saving features, a small size, ease of deployment, and data collecting and control capabilities. Energy management systems, intelligent buildings, intelligent distribution panels, high and low voltage switchgear, community power distribution, industrial automation, power plant power systems, substation automation, distribution network automation, and other scenarios can all make extensive use of it.
You can learn more about power load conditions, pinpoint times of peak energy use, and implement focused energy-saving strategies with the help of the DTSD63. With the 485 communication interface that our product provides, you can communicate with other smart systems and devices to manage energy more intelligently.
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Instantaneous true RMS value |
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Current |
each single phase and conjunction, average |
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Phase voltage/line voltage |
each single phase and conjunction, average |
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Active, reactive, apparent power |
each phase and the sum of three phases |
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Power factor |
each phase and the sum of three phases |
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Frequency |
45~65Hz |
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Maximum/minimum value |
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Max/min rms current |
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Max/min rms phase voltage |
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Max/min total active, reactive, apparent power |
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Max/min total power factor |
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Max/min frequency |
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Max/min THD I & THD U |
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Demand and peak demand value |
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Current per phase |
current value/peak/month-end peak |
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Total active, total reactive, total apparent power |
current value/peak/month-end peak |
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Energy |
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Input/output/total active energy |
1 pulse output(multiplexed) |
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Input/output/total reactive energy |
1 pulse output(multiplexed) |
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Apparent electrical energy |
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Moth-end electrical energy |
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Multi-tariffs |
8 billing periods, 4 tariffs can be set |
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Power quality |
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Total Harmonic Distortion Rate (THD) |
current and voltage |
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1st-31th harmonic analysis |
current and voltage |
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Voltage crest factor CF and current K coefficient |
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Event logging |
100 SOE event records |
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Alarm |
8 configurable limit alarm channels & 4 configurable logical alarm channels |
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Communication |
RS-485 /MODBUS-RTU, DL/T 645-2007 |
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Display |
TFT LCD |
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Real-time clock |
Year, month, day, minute, second |
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Other |
Program online upgrade supported |
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Digital Input (DI) |
4 switching inputs |
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Digital Output (DO) |
1 relay output, which can be set by local limit alarm or controlled remotely |
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Temperature Sampling Input |
1-8 channels digital temperature sensor input |
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Electrical characteristics |
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System |
3P3W, 3P4W |
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Measurement accuracy |
Current |
±0.2%FS |
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Voltage |
±0.2%FS |
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Power |
0.5S |
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Frequency |
45～65Hz,error: ±0.2% |
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Active energy |
0.5S |
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Reactive energy |
2.0S |
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Temperature |
-10℃~+85℃, error: ±0.5℃ |
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Voltage input |
Measuring voltage |
3*220/380V, 3*57.7/100V(3P4W) |
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3*100V, 3*380V(3P3W) |
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Current input |
Measuring current |
3×1(6)A, 3×10(80)A or external CT |
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Digital input |
Operating voltage |
5 VDC |
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Digital output |
Node type Node capacity |
Mechanical contacts |
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220 VAC/5A,30 VDC/5A |
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Working power supply(three options) |
Voltage supply |
50~450 VAC/45-65Hz |
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Auxiliary AC |
85~265 VAC/45-65Hz |
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Auxiliary DC |
9~36 VDC |
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Power consumption |
< 3W |
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Function |
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Display |
Screen |
TFT LCD |
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Resolution |
240*320 |
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Communication |
Interface |
RS485 |
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Protocol |
Modbus-RTU, DL/T 645-2007 |
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Baud rate |
2400, 4800, 9600, 19200, 38400, 57600 |
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Switching IO |
Output |
1 relay output, 2A/30VDC or 2A/250VAC (optional) |
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Input |
4 channels dry contact inputs(optional) |
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Temperature measurement |
Channels |
0-8 (optional) |
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Method of measuring |
Digital temperature sensor |
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Pulse output |
PPS output |
Default to PPS output |
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Energy pulse output |
1 active optocoupler output, 1 reactive optocoupler output |
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Pulse constant |
7200imp/kWh, 400imp/kWh (optional) |
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Mechanical characteristic |
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Weight |
≤0.5kg |
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Size |
126mm*88.5mm*69.5mm |
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Operating temperature |
-20~70°C |
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Storage temperature |
-25~70°C |
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Humidity |
≤93%RH, non-condensing, no corrosive gases |
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Altitude |
≤2500m |
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Code：DTSD63-A-B-C-D-E-F |
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A. Model code: Rated measuring voltage |
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1 |
3×57.7/100V |
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2 |
3×220/380V |
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3 |
3×100V |
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4 |
3×380V |
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B. Model code: Rated measuring current |
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1 |
3×1(6)A |
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2 |
3×10(80)A |
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3 |
External current transformer, current is customized according to customer needs |
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4 |
Other models can be customized through transformer connection |
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5 |
Direct access to other models for customization |
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C. Model code: Working power mode |
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1 |
Three-phase voltage supply |
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2 |
Auxiliary AC power supply mode, |
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3 |
Auxiliary DC power supply mode |
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D. Model code: Switch input |
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0 |
No DI |
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4 |
4 -way DI |
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E. Model code: Relay output |
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0 |
No relay output |
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1 |
Optional 1-way relay output (RL1+, RL1- ports) |
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F. Model code: Temperature measurement input |
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0 |
Without digital temperature sensor |
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1-8 |
The number of digital temperature sensors is 4 as standard. |
