Energy-230 Micro - Energy meter Vemer - Free user manual and instructions

Product Type	Single-phase active energy meter
Model	Energy-230 Micro
Manufacturer	Vemer S.p.A.
Power Supply	230 V AC (-15%/+10%), 50/60 Hz
Power Consumption	0.7 W (voltage circuit) + 0.2 W (current circuit)
Basic Current (Ib)	5 A
Maximum Current (Imax)	25 A
Starting Current	≤ 20 mA
Minimum Current (Imin)	25 mA
Accuracy Class	1 (according to EN 62053-21)
Counting Mechanism	Electromechanical counter with 5+1 digits
Resolution	0.1 kWh (full scale 99999.9 kWh)
Pulse Output	Optoinsulated, 2000 pulses/kWh, duration ≥30 ms, 18-27 V DC, max 27 mA
LED Indicator	Red LED, 2000 flashes per kWh
Operating Temperature	-20°C to +50°C
Storage Temperature	-25°C to +70°C
Humidity	20% to 90% non-condensing
Protection Degree	IP20
Mounting	1 DIN module
Standards Compliance	EN 61010-1, EN 62052-11, EN 62053-21; EU directives 2014/35/EU, 2014/30/EU
Safety Features	Requires qualified installation; overcurrent protection; bipolar disconnection; overvoltage category III; pollution level 2
Maintenance	No special maintenance required; clean with dry cloth if needed
Repairability	Not user-serviceable; contact qualified technician for repairs

Frequently Asked Questions - Energy-230 Micro Vemer

How do I install the Energy-230 Micro energy meter?

Installation must be performed by a qualified operator following the wiring diagrams provided. Ensure a protection device against overcurrents is installed upstream, and a bipolar disconnection is present in the supply mains. Mount the device in a 1 DIN module enclosure.

What does the red LED indicate?

The red LED flashes at a rate of 2000 flashes per kWh of active energy consumed. Each flash corresponds to 0.5 Wh of energy passed through the meter.

How can I use the pulse output for remote monitoring?

Connect the pulse output to terminals 20 and 21. The output is an optoinsulated open-collector transistor. It provides 2000 pulses per kWh, with a minimum pulse duration of 30 ms. Supply voltage must be 18-27 V DC and max current 27 mA.

What is the accuracy class of this meter?

The Energy-230 Micro has an accuracy class 1 according to EN 62053-21, meaning it has a maximum permissible error of ±1% under reference conditions.

Can I reset the electromechanical counter?

No, the electromechanical counter is non-resettable. It displays cumulative energy consumption up to 99999.9 kWh. To reset, the device must be replaced.

What is the maximum current the meter can handle?

The meter can handle a maximum current (Imax) of 25 A continuously. The basic current (Ib) is 5 A. The starting current is ≤20 mA and minimum current is 25 mA.

What ambient conditions are allowed for operation?

Operating temperature range is -20°C to +50°C with 20% to 90% non-condensing humidity. Storage temperature is -25°C to +70°C. The device is rated for indoor use only with IP20 protection.

Why does the display show no digits?

Check that the supply voltage (230 V AC) is present and within tolerance. If the electromechanical counter is stuck or damaged, the device may need replacement by a qualified technician. Also verify the wiring is correct.

What safety precautions should I take during installation?

Ensure the device is disconnected from the power supply before touching terminals. Use appropriate overcurrent protection (e.g., circuit breaker) upstream. The installation must comply with overvoltage category III and pollution level 2 standards.

Is the Energy-230 Micro compatible with renewable energy systems?

Yes, the meter measures active energy in single-phase 230 V AC systems and can be used in grid-tied solar or wind installations provided the current does not exceed 25 A. Ensure proper wiring according to local regulations.

USER MANUAL Energy-230 Micro Vemer

Mod. Energy-230 Micro

Vemer S.p.A.

I - 32032 Feltre (BL) • Via Camp Lonc, 16

Tel [phone] • Fax [phone]

e-mail: [e-mail] - web site: www.vemer.it

2 DIMENSIONI

1. Terminals for pulse output
2. Red LED: 2000 flashes every 1kWh counted (1 flash every 0.5W)
3. Electromechanical counter with 5 + 1 digits counter

User manual

SINGLE-PHASE ACTIVE ENERGY METER

Read all instructions carefully

The static energy meter Energy 230 Micro is a device in 1 DIN module container for active energy counting in 230 V AC single-phase systems. Energy-230 Micro LCD also equipped with pulse output.

Code Model Description

VE321600 Energy-230 Micro Active energy meter with pulse output

SAFETY WARNINGS

During the installation and operation of the device it is necessary to respect the following instructions:

1) The device should be installed by a qualified operator in according with the wiring diagrams
2) Do not power or connect the device if any part of it is damaged
3) After the installation inaccessibility to the connection terminals without the use of special tools must be guaranteed.
4) The device should be installed in conformity to the standards relative to the electrical system
5) Before touching the connection terminals make sure that the wires are not live
6) A protection device against over-currents should be installed in the electrical system, upstream of the energy meter
7) In the supply mains must be present a bipolar disconnection
8) The device is designed to operate in environments with overvoltage category III and pollution level 2 according to EN 61010-1 standard.

TECHNICAL CHARACTERISTICS

• Power supply: 230 V AC (-15%/+10%), 50/60 Hz
• Maximum power consumption:
– voltage circuit: 0.7 W
– current circuit: 0.2 W
• Basic current: I_b = 5A
• Maximum current: I_max = 25 A
• Starting current: ≤ 20 mA
- Connection type: direct for current inputs
• Minimum current: I_min = 25 mA
• Signaling led red = 2000 flashing at kWh
• Accuracy: class 1 (according to EN 62053-21)
• Electromechanical counter: 5 digits + 1 decimal
- Reading resolution: 0.1 kWh (full scale: 99999.9 kWh)
- Optoinsulated pulse output for energy consumption remote-monitoring (20 and 21 terminals)
- Pulse specifications:
- weight = 2000 flashing at kWh
– duration ≥ 30 ms
- voltage = 18 ÷ 27 V DC
– max current output: 27 mA
• Operating temperature: -20 ÷ +50 ^
• Storage temperature: -25^ ÷ +70^
- Operating humidity: 20 ÷ 90% non condensing
- Container: 1 DIN
• Protection degree: IP20

OPERATION

• Install the energy meter Energy-230 Micro according with the wiring diagrams described in this manual and on the device.
• After installation, the counter records the active energy. The red LED and the pulse output (terminals 20, 21) emit a signal with frequency proportional to the measured energy (2000 flashing at kWh).

REFERENCE STANDARDS

Conformity to the EU directives:

2014/35/EU (LVD)

2014/30/EU (EMCD)

is declared in reference to the following harmonised Standards:

• EN 61010-
• EN 62052-11 EN 62053-21