YTL D524053 User manual

1. Introduction
2. Features and technical Parameters
3. Description
4. Display
5. Connection Diagram
6. Dimensions
7. Installation
8. Safety Instructions
Three-Phase Four-Wire Energy Meter
User Manual For D524053

1
1. Introduction
It is three phase four wire prepayment keypad meter with multi-functions, which measure forward and
reverse power, total active power,remain credit and consumption credit etc. Inner meter use credit to
calculate for managing well.Meanwhile, this prepayment meter Wi-Fine communication.
2. Technical Parameters and Features
Sr.
Parameter
Description
1
type
3-phase 4-wire:
Direct type
Indirect type
2
Accuracy class
1.0 (or better)-active energy
2.0-Reactive Energy
3
Voltage
3*240/415V
4
Frequency
50Hz
5
Ib/Imax
Direct type: 5/100A;
6
Min Starting Current
Class 1:40mA
Class 2: 50mA
7
Over-voltage rating
Withstand 420VAC for 48 hours
8
LCD
LCD with back light;
Display voltage of L1,L2L3;
Display phase current flow direction;
Active tariff indication;
Load-switch status;
Operational mode;
Tamper status;
Communications status to DCU;
Token acceptance status;
Overload;
Remaining credit;
Volts;
Amps;
kWh;
kVArh;
Cyclic display of data on LCD-configurable;

2
Manual scrolling data display using scroll keys;
9
Measurement
Each phase and neutral current measurement
Neutral line with CT.
10
Alarm
PF;
voltage dip/Low voltage;
Temperature near terminal block
11
Tamper inputs
Meter cover open;
Terminal cover open;
Comms module cover open;
Strong magnetic field tamper
12
Communications
RS485 (always present)
IR (always present)
Plug-in module:
Wi-Fine
GPRS
LoRa
Protocol: DLMS
13
Tariff
Multi tariff
14
Maximum demand
Configurable integration period-with auto reset on the
1st of every month.Manual reset must also be possible
via secure short code method.MD to be part of scroll
display.
15
Load management
Support second configurable load limit threshold that
becomes active during configurable periods
16
LCD display when no Power
LCD display; when the button is pressed, the battery
should allow the LCD to maintain for 30 seconds when
the meter is not powered
17
Anti-tamper when Neutral missing
when Neutral missing, the meter still can work
（batter
y support）
18
Standards compliance
IEC62052-11
IEC62053-21
IEC62056-46
IEC62056-61
IEC62053-61
3. LCD Display
3.1 LCD Screen

3
4. Description
A Communication Modem
B LCD
C Scroll up Turn Page
D Scroll down Turn Page
E Keypad
F IR
G Impulse constant
H Credit indicator (green: enough credit, red: no credit, yellow: low credit）
A
B
C
D
E
F
G
H

4
5. Connection Diagram
Direct type:
6. Meter Dimension
7. Installation Instruction

5
▪ Choose the meter installation cabinet or insulating cell;
▪ Confirm a point in the cabinet or insulating cell, screw on the equipped self-tapping screws,
and hang the meter (Fig. 1),and then fix two locating points under the meter with self-tapping screws.(Fig.2);
Figure 1 Figure 2
Recommended wire（For your reference）：
Safe carrying capacity of rubber or plastic insulated wire(1)
specification（mm）
nominal cross
section
（mm2）
Safe carrying capacity（A）
BX
BLX
BV
BLV
1*1.13
1
20
18
1*1.37
1.5
25
22
1*1.76
2.5
33
25
30
23
1*2.24
4
42
33
40
30
1*2.73
6
55
42
50
40
7*1.33
10
80
55
75
55

6
7*1.76
16
105
80
100
75
7*2.12
25
140
105
130
100
7*2.50
35
170
140
160
125
19*1.83
50
225
170
205
150
19*2.14
75
280
225
255
185
19*2.50
95
340
280
320
240
Note：BX(BLX）copper（aluminum）core rubber insulated wire or BV(BLV）copper（aluminum）
core PVC plastic insulated wire，widely used in 500V or less than 500V AC and DC power
distribution system. The temperature for the data listed in the above table is 35℃、the safe
carrying capacity value for the wire on single coved.
8 Safety Instructions
Information for Your Own Safety
This manual does not contain all of the safety measures for operation of this equipment (module, device) because
special operating conditions, local code requirements or local regulations may necessitate further measures.
However, it does contain information which must be adhered to for your own personal safety and to avoid damage
to the equipment. This information is highlighted by a warning triangle with an exclamation mark or a lightning bolt
depending on the severity of the warning.
Warning
Means that failure to observe the instruction can result in death, serious injury or considerable material damage.
Caution
Means hazard of electric shock and failure to take the necessary safety precautions will result in death, serious
injury or considerable material damage.

7
Qualified personnel
Installation and operation of this equipment described in this manual may only be performed by qualified personal.
Only people that are authorized to install, connect and use this equipment and have the proper knowledge about
labeling and grounding electrical equipment and circuits and can do so according to safety and regulatory
standards are considered qualified personnel in the manual.
Use for the intend purpose
The equipment (device, module) may only be used for the application cases specified in the catalog and the user
manual and only in connection with devices and components recommended and approved by YTL.
Exclusion of liability
We have checked the contents of this publication and every effort has been made to ensure that the descriptions
are as accurate as possible. However, deviations from the description cannot be completely ruled out, so that no
liability can be accepted for any errors or omissions in the information given. The data in this manual is checked
regularly and the necessary corrections will be included in subsequent editions. If you have any suggestions, pls
let us know.
Subject to technical modifications without notice.
Copyright
Copyright Zhejiang Yongtailong Electronic Co., Ltd. April 2013 All rights Reserved.
It is prohibited to pass on or copy this document or to use or disclose its contents without our express permission.
Any duplication is a violation of the law and subject to criminal and civil penalties. All rights reserved, particularly
for pending or approved patents award or registered trademarks.
General Warning
After removing the packaging make sure the integrity of the unit. If in doubt don't use the equipment and contact
technical staff.
Mounting of electric appliances must be carried out only by skilled electricians. It is imperative to observe the
generally applicable safety measures.
In case of failure and /or malfunctioning of the device, turn off it. For any repair only contact technical staff. Failure
to comply with the above may compromise the device safety.
Warranty
The manufactory will repair or exchange the products while the lead seal is still exited, within 18 months, when
discovering the products not accordance with the technical specification.
Technical support
For any problems of our products please contact:
Zhejiang Yongtailong Electronic co.,ltd
No. 320 Tongsheng road, Tongxiang Zhejiang, China

8
Post:314500
Web: www.ytl-e.com
Tel: [phone] Fax: [phone]