Technical data

2CMC480022C0003| Electricity meters 25
DELTAplus
Description
The DELTAplus is an advanced meter for installation in
three phase and single phase networks. The meter is
mounted on a DIN rail and is suitable for installation in
distribution boards and small encloses such as consumer
units. The meter measures active or combined (active and
reactive) energy. The product supports a wide voltage
range and a wide temperature range which makes it
suitable for installation in many applications.
General features
DELTAplus is an meter that is easy to handle. It is easy to
read the large LCD display with 7 mm high digits and symbols
for load indication, errors etc. The meter has LED on the front
that flashes proportionally to the measured energy. The en-
ergy consumption of the meter is very low, less than 0.6 VA.
Communication
Data from DELTAplus is collected via pulse output or serial
communication. The pulse output is a polarity independent
solid state relay that generates pulses proportionally to the
measured energy. DELTAplus can be equipped with built-in
communication interfaces for M-Bus or LonWorks FTT-10A.
All DELTAplus meters come with an infrared port for com-
munication with an external Serial Communication Adapter
(SCA). There are SCAs for M-Bus, RS-232, Ethernet, GSM/
GPRS and KNX.
Tariffs
The DELTAplus range includes meters for 2 and 4 tariffs. The
tariffs are controlled via inputs or via communication.
Instrumentation
Through the instrumentation functionality of DELTAplus,
the following electrical properties can be read
•Activepower(perphaseandtotal)
•Apparentpower(perphaseandtotal)
•Reactivepower(perphaseandtotal)
•Current(perphase)
•Voltage(perphase)
•Frequency
•Powerfactor
Inputs and outputs
DELTAplus support two I/O’s. It can be two inputs or two
outputs or one of each. Outputs can be used for controlling
external apparatus like a contactor or an alarm (max 120 mA).
Inputs can be used for counting pulses from e.g. a water
meter, or for reading status from external devices.
Configuration
The configuration of DELTAplus is simple. Using the two but-
tons scroll and set you can configure transformer ratio, pulse
frequency, M-Bus address and baud rate when applicable.
The two push buttons are under a sealable cover. When they
are sealed, the scroll eye on the fron of the meter can be used
for reading the parameters and also instrument values.
Installation
DELTAplus comes with an automatic installation check that
indicates problems in the installation.
Approval
DELTAplus is type approved according to IEC and it is both
type approved and verified according to MID. MID is the
Measuring Instruments Directive 2004/22/EC from the
European Commission. MID type approval and verification
is
mandatory for meters in billing applications within EU and EEA.
The type approval is according to standards that covers all
relevant technical aspects of the meter. These include climate
conditions, electromagnetic compatibility (EMC), electrical
requirements, mechanical requirements and accuracy.