Single-phase rail energy meter
Safety Guidance
Information about your personal safety
Due to different conditions or requirements, this manual cannot cover all the safety matters related to the operation of this instrument, but it is very important to understand the following items to ensure your personal safety and prevent damage to the instrument. These items are highlighted with a triangular safety symbol, depending on the degree of potential hazard indicated.
Environmental Indicators
| Working Humidity | ≤ 75% |
| Storage Humidity | ≤ 95% |
| Operating Temperature | -10°C - +50°C |
| Storage Temperature | -30°C - +70°C |
| International standardIEC | 62053-21 |
| Domestic Standard | GB/T17215.321-2008 |
| Accuracy Class | 1 |
| Dustproof and Waterproof | IP 51 |
| Protective Insulation Encapsulation Type | Ⅱ |
Technical Parameters and Display Type
| Model | (LCDDisplay) |
| Reference Voltage (Un) | 220V 230V 240V |
| Operating Voltage | 181/279V AC (3~) |
| Rated Current (Ib) | 2.5 5A 10A 15A 20A 30A |
| Maximum Current (Imax) | 10A 20A 40A 60A 80A 100A |
| Starting Current | ≤0.004b（Direct Access） |
| Withstand Overload Current | 30Imax 0.01s |
| Working Frequency | 50Hz±10% |
| Internal Power Consumption | ≤2W / 10VA |
| Pulse Constant | 1000imp |
| RS485 Port | 23(A)and24(B) |
| Data Storage Time | >20 Years |
LCD Display
| 1st Screen displays ID address Add 001 |
| 2nd Screen displays baud rate bd 9600 |
| 3rd Screen displays constant CoSE 1000imp |
The fourth screen keeps displaying
| 4th Screen displays the total amount of electricity 000000.00 kWh |
Intrinsic Error
Single phase balanced load
0.05Ib Cosφ = 1 ±1.5%
0.1Ib Cosφ = 0.5L ±1.5%
Cosφ = 0.8C ±1.5%
0.1Ib - Imax Cosφ = 1 ±1.0%
0.2Ib - Imax Cosφ = 0.5L ±1.0%
Cosφ = 0.8C ±1.0%
Outline and Structure
 |
A: Front panel
B: Cover C:Bottom D: Seal |
|
 |
Front panel Flame-retardant PC
Cover Flame-retardant ABS or PC Bottom Flame-retardant ABS or PC Dimension 89.9mmx35mmX72mm Weight 0.12 Kg (Net Weight) |
|
| Terminal | Notice | |
| 1/3 | Input/output | |
| 4/5 | RS485 port | |
| 6/7 | Pulse output | |
| 8/9 | Neutral line | |
|
product name |
product model |
basic function |
remarks |
|
|
Single-phase electricity meter |
NLK13521-1 |
|
Direct and accurate measurement of active power rated at 50H Z or 60H Z 1.5 (6) A, 5 (20) A, 5 (25) A, 5 (30) A, 5 (32) A, 40 (100) Accuracy is level 0.5 Total electrical power is displayed by a 6 + 1-bit LCD |
Length * in width * 90mm * 18mm * 66mm in height |
|
NLK13521-2 |
|
Length * width * height 75mm * 18mm * 55mm respectively |
||
|
NLK13521-4 |
|
Length * width * height of 91mm * 76mm * 74mm respectively |
||
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