TIMEWAVE Professional Advanced Metering Infrastructure smart
electricity meter with AMI solution and System
Type DTZY2397 (LoRaWAN)
Three-phase IOT smart energy meter
Electricity meter operating instruction
1. OVERVIEW
The intelligent electricity meter has the functions of electric
energy measurement, power parameter measurement, time-sharing
measurement, real-time freezing, on-off control, LoRaWAN and RS485
communication,etc.It is suitable for three-phase power consumption
occasions.
| Qualification | Three-phase direct table | Three-phase CT table |
| Standards | IEC62053-21, IEC62052-11, DL/T645-2007 |
| rated voltage Un | 3×220/380V | 3×220/380V |
| Operating voltage range | 80%-115% | 80%-115% |
| Rated flow limit Ib | 5A | 1.5A |
| Maximum current: Imax | 100A | 6A |
| starting current | 0.4% Ib | 0,2% Ib |
| Power grid frequency | 50Hz | 50Hz |
| frequency range | ±2% | ±2% |
| Active measurement accuracy | Classl 1 / B | Class 0.5, S / C |
| Reactive measurement accuracy | Class 2 | Class 2 |
| Active pulse constant | 400(imp/kWh) | 3200(imp/kWh) |
| The reactive pulse constant | 400(imp/kvarh) | 3200(imp/kvarh) |
| clock precision | ±0.5S/d (23℃) | ±0.5S/d (23℃) |
| Normal operating temperature range | -40°C～+70°C | -40°C～+70°C |
| Extreme operating temperature range | -40°C～+70°C | -40°C～+70°C |
| Transportation and storage temperature range | -40°C～+70°C | -40°C～+70°C |
| power dissipation | <1.5W ,10VA | >1.5W ,10VA |
| The time that the blackout clock preserves | >24h | >24h |
| The RS485 Interface | The Default is 2,400 b p s.1200bps, 2400bps, 4800bps, and 9600bps
were available |
| LoRaWAN frequency | 864-865MHz | 864-865MHz |
3.1. 3.1 Metering positive and negative active power, positive and
negative direction active power, 1-4 quadrant reactive power, and
ABC phase separation active power and reactive power functions.
Electrical energy should be accumulated and stored separately for
electric energy and total electrical energy at each time period
such as tips, peaks, flats, and valleys. And it can also store and
display the power of the previous 12 months.
3.2. 3.2 It can measure, store and display the operating parameters
and states of ABC such as each phase voltage, current, total and
three-phase active reactive power, three-phase active reactive
power, total and three-phase power factor and frequency of the
current electricity meter. And it has overload protection function.
3.3 There are two sets of rates (sharp, peak, flat, valley) and
periods that can be programmed arbitrarily, and another set of
rates and periods can be start to used at the set time point. Each
set of rate time periods can be set with at least 2 time zones for
a year. At least 14 time periods can be set within 24 hours. The
minimum time period interval is 15 minutes. The time period can be
set across zero points.
3.4 Record the maximum demand and occurrence time of forward
active, reverse active, positive reactive and reverse active power
in that month.
3.5It has freezing functions such as instantaneous freezing,
regular freezing, daily freezing, agreed freezing and hour
freezing.
3.6 It has the function of event recording such as zero clearing,
programming, proofread, power down, pulling and closing the brake,
etc.
3.7 Remote disconnection and power transmission function. Power off
command is issued through communication interface such as RS485 to
cut off the user's load loop; Or issue a power transmission
instruction to turn on the user load loop.
3.8Active upload / bidirectional transparent transmission function.
Actively upload the data to the corresponding platform through the
LoRaWAN wireless network, with a default interval of 4 hours
(settable).
3.9 After the meter is powered on and the LoRaWAN module is
connected to the network, the meter is automatically calibrated.
LCD full-screen display schematic diagram (as shown above)
| No. | LCD figure | explain |
| 1 | PREMON POS NEG ∑ T1 T2 T3 T4 | Current and last month, forward and reverse, cumulative total
electricity consumption and each rate |
| 2 | A B C | ABC three-phase state, electric energy, instantaneous amount
indication |
| 3 | DEMAND | Maximum monthly demand |
| 4 | REMAIN | Overdraw and residual status indication |
| 5 |  | Network status indicator (none) |
| 6 | 8888:8.8:8.8 cos Φ kvarh kW kWh V A | Data display and the corresponding unit symbol |
| 7 |  | Represents periods sets 1 and 2 |
| 8 |  | Indicates current rate status (peak valley) |
| 9 |  | Insufficient voltage indicator of Battery or supercapacitor |
| 10 |  | Three-phase voltage or current out- of-phase indicator |
l Overdraw indication: overdraft electricity when "surplus" seconds
flash, overdraft power off power when "surplus"speeds flash.
l Out- of-phase indication: When ABC is out of phase, the
corresponding character of ABC in the lower row flashes seconds.
l
Wrong phase indication: this indicator seconds flashes when ABC
three-phase voltage is wrong phase; this indicator speeds flashes
when ABC three-phase current is wrong. This indicator does not
appear when there are missing phases.
The electricity meter uses a bright, long-life LED as a pulse
indicator light.
It has active power pulse indicator light: red, usually go out,
flashing when measuring active power.
It has reactive power pulse indicator light: red, usually go out,
flashing when measuring active power.
Trip indicator light: yellow. Often out indicates the relay closed
state.Often bright indicates the relay off state.
LoRaWAN module status indicator: green. Often bright indicates that
is online, flashing is going online.
5.2.1 Weak current terminal wiring diagram
NO: Tritrip trip
N: The trip is public
NC: Tritrip is often closed
T +: High multifunction T-: Low multifunction
A: The RS485 A line B: The RS485 B line P: Active pulse Q: reactive
pulse
- -: Pulse Commons
5.2.2 Wiring diagram of the three-phase four-wire mutual inductance
table
5.2.3 Wiring diagram of three-phase four-wire straight-through
meter table
The electricity meter shall be installed indoors as far as
possible. Special instrument box protection shall be used for
outdoor installation. The installation bottom plate shall be fixed
on the wall with strong fire resistance and not easy to vibration.
There must be no corrosive gases in the surrounding air where the
meter is installed. Avoid dust, salt spray, etc.
When using the electricity meter, the wiring must be conducted
strictly according to the wiring diagram in the tail cover of the
meter. It is recommended to use copper wire for the lead connected
to the terminal seat. The screws of the fixed lead in the terminal
seat should be tightened to avoid burning the electricity meter due
to bad contact and heating.
6. TRANSPORTATION AND STORAGE
Ammeters must be transported and stored under original packaging
conditions. Products shall not be severely impacted during
transportation and unpacking, and are transported and stored in
accordance with GB / T15464-1995 General Technical Conditions for
Instrument Packaging. The products should be stored in the
warehouse and placed on the platform frame. The stacking height
shall not exceed five layers. No corrosive gases shall be present
in the stored environment.
7. WARRANTY PERIOD AND AFTER-SALES SERVICE
If the user complies with the transportation, storage and
installation operation specifications, and the lead seal of the
manufacturer is still complete.If there is a quality problem, our
company is responsible for free repair or replacement within 18
months from the date of delivery the electricity meter.
During the whole life cycle of the products, our company implements
"three guarantees" for all electricity meter products, providing
necessary maintenance and services. Providing equipment wiring
diagram and necessary technical documents and drawings. According
to the requirements of users, provide necessary training for
maintenance personnel and operators. Providing training materials,
and update the software regularly and provide free upgrade.
After receiving the service request of the product user, our
company will respond within 12 hours.
