1、 Overview

The electronic three-phase four wire active energy meter adopts large-scale dedicated integrated circuits, surface mounting technology, unique design, and exquisite craftsmanship. In various aspects such as design, production, testing, aging, and factory inspection, high reliability is the primary goal of the product. Compared with traditional induction energy meters, this meter has high measurement accuracy, good stability, small size, light weight, low power consumption, easy expansion of modern management functions, and has phase loss indication and pulse output signals.

2、 Working principle

3、 Technical indicators
1. Specifications

Model: DTS2255
Accuracy level: 2.0
Reference voltage: 3 × 220/380V
Reference current: 3 × 1.5 (6) A, 3 × 3 (6) A, 3 × 5 (20) A, 3 × 10 (40) A, 3 × 15 (60) A, 3 × 20 (80) A, 3 × 30 (100) A
Meter constant: see nameplate annotation

2. Start up
Under the specified current conditions, the instrument should be able to start and continuously record (see table)

instrument	Instrument level	Power factor
	2
Directly connect	0.05 Ib	1
Through mutual connection	0.05 Ib	1

3. Stealth
When 115% of the rated voltage is applied and there is no current in the current circuit, the output of electricity should not exceed one pulse.

4. Electrical parameters
Normal operating voltage: 0.9-1.1 rated voltage
Maximum operating voltage: 0.8-1.15 rated voltage
Power consumption: ≤ 2W and 10VA

5. Climate conditions
5.1 Temperature Range:
Normal operating temperature:- 20—45℃
Extreme working temperature:- 45—55℃
Store and transport temperature:- 25—70℃

5.2 Humidity Range:
Annual average humidity: ≤ 75%. For 30 days of the year (naturally diffused), the temperature can reach 95%, and sometimes up to 85% during other times

6. Weight: Approximately 1.2kg

4、 Transportation and storage

This product should be transported under packaging conditions, and the transportation and unpacking process should not be subjected to severe vibration and impact. Its transportation packaging and storage should comply with GB/T 13384-2008 "General Technical Conditions for Packaging of Mechanical and Electrical Products". The inventory and storage should be stored on a bracket under the original packaging conditions, with a stacking height of no more than 5 layers. The stored electric energy meter should be in the original packaging, and the storage location should be clean. The ambient temperature should not exceed -20~+70, and the relative temperature should not exceed 85%. The air should not contain corrosive gas and mold.

5、 Guarantee period

Within 12 months from the date of manufacture, the user has fully complied with the requirements of this manual, and the lead seal of our factory is still intact. If it is found that it does not meet the technical requirements, our factory will provide warranty or replacement.

6、 Outline and installation dimension diagram