TECH LE-3x230mb DIN Rail Energy Meter

Manufacturer: TECH Sterowniki II Sp. z o.o.

Address: ul. Biała Droga 31, 34-122 Wieprz

Certifications: UK CA, EAC, CE

Product Description

The LE-3x230mb energy meter is designed for mounting on a standard DIN rail (TH-35). It utilizes advanced integrated circuits for energy measurement, digital sample processing, and SMT technology to accurately display the user's actual energy consumption. The LE-3x230mb is a certified energy meter.

Installation and Wiring

Wiring Mode

Three phase four wire direct connection.

Signal Terminal Wiring Diagram

This diagram shows the signal terminal connections for communication and energy pulse output. The communication section includes terminals for RS485 (labeled A, B, 58, 59) and RS232, with a connection for a PC. The energy pulse output section has terminals AP (47, 48).

Device Description

The front panel of the device features an LCD display interface, an energy pulse indication light, user-programmable buttons, and a section for displaying parameters.

Dimensions and Assembly

The LE-3x230mb meter has a width of 72mm, a height of 90mm, and a depth of 45.2mm. It is designed for standard 35mm DIN rail mounting.

Display Overview

DIN-rail mounted energy meters like the LE-3x230mb display measured data including voltage, current, power, power factor, frequency, and energy consumption. Users can switch between different display interfaces by pressing the ◀️ and ▶️ buttons simultaneously.

Energy and Electrical Variables

Display Value (Example)	Description	Display Value (Example)	Description
EP = 780.62 kWh	Import active energy	208.09 kWh	Total multi-rate energy under T1
EP- = -0.00 kWh	Export active energy	101.06 kWh	Total multi-rate energy under T2
EQ = 18.80 kvarh	Import reactive energy	382.23 kWh	Total multi-rate energy under T3
EQ- = -7.10 kvarh	Export reactive energy	89.24 kWh	Total multi-rate energy under T4
Ua = 220.1 V	Phase voltage Ua	Qa = 0.108 kvar	Phase A reactive power
Ub = 220.2 V	Phase voltage Ub	Qb = 0.210 kvar	Phase B reactive power
Uc = 220.0 V	Phase voltage Uc	Qc = 0.098 kvar	Phase C reactive power
Uab = 381.3 V	Line voltage Uab	Q = 0.416 kvar	Total reactive power
Ubc = 381.2 V	Line voltage Ubc	Sa = 2.218 kVA	Phase A apparent power
Uca = 381.2 V	Line voltage Uca	Sb = 2.207 kVA	Phase B apparent power
Ia = 10.10 A	Phase A current	Sc = 2.211 kVA	Phase C apparent power
Ib = 10.20 A	Phase B current	S = 6.636 kVA	Total apparent power
Ic = 11.00 A	Phase C current	PFa = 0.985	Phase A power factor
Pa = 2.128 kW	Phase A active power	PFb = 0.998	Phase B power factor
Pb = 2.040 kW	Phase B active power	PFc = 0.988	Phase C power factor
Pc = 2.100 kW	Phase C active power	PF = 1.000	Total power factor
P = 6.267 kW	Total active power	F = 50.00 Hz	Grid frequency

Sinum System Integration

How to Register

To register the device in the Sinum system, connect it to the Sinum central device via the RS-485 connector. Log in to the Sinum central device via a web browser. Navigate to Settings ⚙️ > Devices > MODBUS devices > Add ➕ > Energy meter > Energy meter TECH LE-3x230mb. Configure the following parameters: Communication address: 2, Baud rate: 9600, Parity bit: E.B.1.

Programming Mode

Enter Programming Mode

To enter programming mode, press and hold the ◀️ button for more than 5 seconds when the meter reading is displayed. The screen will show Code. Press the ▶️ button to confirm entry. Enter the initial system password 0001 using the ◀️ and ▶️ buttons to change values and move to the next digit. Press the ▶️ button to confirm. If the password is correct, the settings menu will appear. An incorrect password will result in the display remaining unchanged.

Options Available

CYC: Cyclic settings
LI GH: Backlight time
AP: Optical output settings
di SP: Welcome screen after switching on
Code: Password change
CLr.E: Reset consumption
CLr.d: Reset demand
Addr: Communication address
bAUd: Transmission speed
DAŁA: Check Mode
Prot: Communication protocol
Er: Currently set rate
vEr: Software version
SALE: Save and exit

Exit Programming Mode

To exit programming mode, press ◀️ and ▶️ simultaneously. The meter will display SALE. Press the ▶️ button, and the meter will display SALE. To save changes, press the ▶️ button to change the status to SALE--YES and confirm by pressing the ▶️ button. To exit without saving, leave the status as is and confirm by pressing the ▶️ button.

Operation Process

The diagram illustrates the button presses for navigating the meter's functions. It shows sequences like pressing the ◀️ button for over 5 seconds, then pressing ▶️ to confirm, followed by sequences like < CYC < LI GH, < AP < 01 SP, < Code < Addr, < bAUd < DAŁA, and < DREA < SALE.

Energy Pulse Output

The energy pulse meter circuit diagram shows a Vcc power source (5V, 12V, or 24V) connected through a resistor (R) to an output terminal. The circuit also includes a capacitor (C) and another resistor (R).

Important Notes

? Do not touch the terminals when the meter is in operation.

? Read this operation instruction carefully and follow all instructions strictly for safe, correct, and efficient use.

? Ensure only qualified technicians perform installation and maintenance.

? Always use a properly rated voltage sensing device to confirm that all power is off before working.

? Connect cables according to the diagrams provided. Disconnecting or connecting the communication plug with power on, or incorrect connection order, may damage the device.

? This product must not be disposed of with household waste. Users are obliged to transfer used equipment to a collection point for recycling of all electric and electronic components.

Technical Data

Parameter	Value
Rated voltage	3×230/400V
Input current	0.25-5 (63) A
Frequency	50/60 Hz
Voltage range	0.8Un – 1.2Un
Voltage circuit consumption	< 4VA
Current circuit consumption	< 1VA
Work temperature	-25°C ÷ 70°C
Storage temperature	-30°C ÷ 80°C
Relative humidity	5 ÷ 95% (no condensation)
Accuracy class (voltage, current:)	0.2 Class
Accuracy class (active energy)	0.5S Class
Accuracy class (reactive energy)	2 Class
Communication	Modbus-RTU protocol (RS-485)

EU Declaration of Conformity

Tech Sterowniki II Sp. z o.o., ul. Biała Droga 34, Wieprz (34-122) hereby declares under its sole responsibility that the LE-3x230mb energy meter is compliant with the following Directives: 2014/35/UE, 2014/30/UE, 2009/125/WE, 2017/2102/UE. For compliance assessment, harmonized standards were used, including EN 61010-1:2010+A1:2019, EN IEC 61010-2-030:2021+A11:2021, EN IEC 61326-1:2021, EN IEC 61000-3-2:2019+A1:2021, EN 61000-3-3:2013+A2:2021, and EN IEC 63000:2019 RoHS. Dated: Wieprz, 01.17.2024. Signed by Paweł Jura, Janusz Master (Prezesi firmy).

A QR code ? is provided for accessing the full text of the EU declaration of conformity and the user manual online at www.tech-controllers.com/manuals.

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