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Product Manual DTS-7P 485
DTS Three-Phase
Energy Meter
Zhejiang Jinhong Electric Co., Ltd
DTS PRODUCT DESCRIPTION OF THREE PHASE ENERGY METER
Product Overview
The DTS-type three-phase four-wire electronic energy meter (rail-mounted7P) (hereinafter referred to as the "energy meter") is a high-tech product manufactured using advanced ultra-low power consumption large-scale integrated circuit technology and SMT processes. Key components are selected from internationally renowned brandswith long lifespans, enhancing theproduct's reliabilityand durability. Featuring an LCD displayand RS485 communication capability,this meter boasts outstanding advantagessuch as high measurement accuracy, excellent stability, strong overload capacity,and high reliability.
according to the standard
GB/T 17215.321 "Special Requirements for AC Measuring Equipment Part 21: Static Active Energy Meters (Class 1 and Class 2)"
GB/T 17215.211 "General Requirements, Tests and Test Conditions for AC Measuring Equipment Part 11: Measuring Equipment"
● JJG596-2012 "Electronic Energy Meter"
● DL/T 645-2007 "Communication Protocol for Multi functional Energy Meters"
●DL/T 830-2002 "Guidelines for the Use of Static Single phase AC Active Energy Meters"
Main parameters
1、Specifications
| wiringmethod | width | pathway | Voltage (V) | Maximumcurrent (A) | Meterconstant(imp/kWh) |
| direct accesstype | 7P | 4 | 3*220/3803*57.7/1003*1003*380 | 100 | 400/1600 |
2、Basic technical parameters
(1)Basic error (not exceeding the limit range of this table):
| load current | power factor | Basic error (%) | |
| Level 1.0 | Level 2.0 | ||
| 5%|b≤|<10%|b | 1.0 | ±1.5 | ±2.5 |
| 10%|b ≤|≤|max | 1.0 | ±1.0 | ±2.0 |
| 10%|b≤|<20%|b | 0.5 (Sensory) | ±1.5 | ±2.5 |
| 0.8 (capacitive) | ±1.5 | ||
| 20%|b ≤|≤|max | 0.5 (Sensory) | ±1.0 | ±2.0 |
| 0.8 (capacitive) | ±1.0 | ||
(2)Electrical parameters
●Working voltage: 80% to115% UN (maximum withstand voltage: phase voltage 300V AC for 1 hour)
● Starting current:<0.4% Ib (1.0 level),<0.5% Ib (2.0 level)
●Latent movement: When the energy meter applies 115%of the reference voltage and there is no current in the current circuit, the energy meter produces no more than one pulse during the 10 times time period when it generates one pulse under the reference voltage and starting current.
Power consumption:Voltage circuit: Under referencevoltage, reference temperature, and reference frequency, the active power and apparent power consumption of thevoltage circuit of the energy meter shall not exceed 2wand 6VA; Not exceeding3Wand 12VA in communicationstate.
●Current circuit: At the basic current, reference temperature, and reference frequency,the apparent powerconsumption of the current circuitof the energy meter shall not exceed 2VA.
(3) Environmental requirements
● Relative humidity: Annual average ≤ 75%, maximum ≤ 95%
●Working temperature: -25 C to+60 ℃
● Extreme working temperature: -40 C to+70 °C
● Storage and transportation temperature: -40 °C to+70 °C
Main functions
Measurement function: capable of measuring active power consumption communication function:The electric energy meter has an RS485communication interface, and the physical layer of the communication interface is isolated from the microcontroller, with a withstand voltage ofup to 2Kv. (The basic model does not have communication function).
Electric energy meters can transmit data to handheld terminals, data collectors, detection devices,computers, etc. through communication interfaces. The communication protocol complieswith DL/T645-2007standardformat or MODBUS-RTU format (ordinary RS485version, choose one of the two protocols before leaving the factory, and cannot be modified later).
The communication transmission rate is 2400bps (645-2007) or 9600bps (MODBUS-RTU).
The RS485 communication interface and the internal circuit of the energy meter achieve electrical isolation and have a fail safe circuit. The communication interface has passed electrical performanceand anti-interference testsand meets the requirements of DL/T 614-2007.
Output and Display
1、Port output
● The electric energy meter has the function of outputting light pulses and electric pulses proportional to the measured electrical energy.
●The characteristics of the optical pulse test output device comply with the requirements of GB/T17215.211-2008.
●The electrical pulse test output isanoptically isolated passiveoutput with a pulse width of 80ms ± 20ms. The characteristicsof theoutput device comply with the requirements of GB/T15284-2002.
2、LCD display
3、Indicator light
Basic and regular RS485models, using 4 high brightness and long-life LEDs as indicator lights.
Pulse: Flashing indicates measurement.
communication protocol
Communication of ordinary RS485 electric meters MODBUS-RTU protocol
9600 baud rate, no checksum. The communication format cannot be modified.03 and 04 are read data,10 is write data, and 00 is a universal address
| address | data content | data format | data length | unit | Read/Write |
| 0X00 | active energy | LONG | 2 | 0.01kWh | R |
| 0X3F | Mailing Address | INT | 1 | R/W | |
| 0X41 | relay | INT | 1 | R/W |
Relay data field: 01 for opening and 00 for closing
Communication of ordinary RS485 electric meters DL/T645-2007 protocol
2400 baud rate, even parity check. The communication format cannot be modified.
12 A's are broadcast addresses
Read the total active power of the combination: (Data identifier: 0000 0000) Sent: 68 010000 00 00 68 1104 33 3333 B216 Return:68 0100 00 0068 9108 33333333 33333333 33 0216
Read the total positive active power: (Data ID: 0001 0000) Sent: 68 0100 00 00 00 68 1104 33 34 33 B316 Return: 68 0100 00 00 00 68 91083334 3333 33 33 3333 0316
Power off: (Power off protection, data domain: 1A) Sent: 68 0100 00 00 681C 10 33333333 34 89 67 45 4D 33 47 77 3B 3A 443C 6516 Return: 68 0100 00 0068 9C 103333333334 89 67 45 4D 33 47773B 3A 44 3C E516
Closing:(pulling the switch to ensure power supply, data domain: 1B) Sent:6801000000 68 1C 1033 3333 333489 67 454E3347 773B3A 44 3C 6616 Return: 68 0100 00 00 68 9C 1033 333333 34 89 67 45 4E 33 47 773B 3A 443C E616
Write deviceaddress:
Sending data: 68AA AA AA AA AA 6815 06B6464C 53 34EA 16
Accepted data: 68 831319 20 010168 95003616
Broadcast meter reading address:
Sending data: 68 AA AA AA AA AA AA 681300 DF 16
Accepteddata: 68700001122068 9306A33334 4553 2116
Read relay status: (Data ID: 0400 0507)
Send 68 1212 65 3412 6811043A 383337 A216
Received 681212 653412 68 91 083A 383734 3333 33XX16
Relay status identification: 3A383337
Relay status data: 3433 3333 (closed)33 33 33 3333 (open)
Size and wiring diagram
wiring diagram
Attention: The maximum torque of the screw is 1.7 N/m, and exceeding the torque may damage the electric meter
after-sales service
1、Warranty
(1)From the date of shipment, if there are any quality problems with the electric energy meter, our company is responsible for free repair or replacement within 18months, provided that the user complies with the transportation, storage,and installation operation specifications specified in this manual and the label is still intact.
(2) Our company implements the "three guarantees" for all electric energy meter products throughout their entire lifecycle, and provides paid maintenance andservices for those that exceed the warranty period.
Important notice: This manual is only for the product at the time of editing the manual. If there are any updates to the product, the actual product shall prevail without further notice.
Zhejiang Jinhong Electric Co., Ltd
