Volume Corrector

ECOR4 Nbiot

Why choose it

ECOR4 Nbiot is a TYPE 1 volume converter, compliant with European Directives 2014/32/EU (MID) and 2014/34/EU (ATEX) and is specifically designed to meet the requirements of UNI TS 11291 and 155/08 Resolution of the Italian Authority for Electricity and Gas for the band ≥G10 of Measurement Groups.

ECOR4 Nbiot performs the PTZ, PT or T type conversion of the volume measured by the meter under the standard reference conditions (base condition). The ECOR4 Nbiot has the following features and functions:

LCD display with multi-level menu
Logging of consumption values
Remote transmission of the readings (compensated by temperature and pressure)

The apparatus has, as standard equipment, two digital outputs; one for repeating the correct volumes and the other for reporting an alarm. Data protection and inviolability of programming parameters is ensured by both sealable switches and programmable passwords.

The ECOR4 Nbiot is part of Siconia Smart Gas metering solution including central Head End System and Meter Data Management system

ECOR4 Nbiot is battery powered.

Normative requirements

ATEX 2014/34/EU Directive
MID 2014/32/EU Directive
UNI TS 11291, AEEG Resolution 155/08
WELMEC 7.2
EN 12405-1

Characteristics

Power supply N° 2 lithium size D batteries 3,6 V

Estimated battery life > 8 years using GSM/GPRS under standard conditions
Estimated battery life < 15 years using NB1 under standard conditions

Compact, waterproof sealed and protected casing made of polycarbonate and ABS plastic
N° 2 digital inputs (configurable as 5Hz max count input or binary)
N° 2 digital outputs (impulsive for repetition of correct volumes and programmable binary)
High measurement stability (0,5% under reference conditions)
PT-1000 sensor for gas temperature detection Length 50mm, diameter 5mm, 2.5 m long Four-wire cable
Accuracy: ≤0.1% of measured value
External pressure transducer

Cable length 2.5m silicon-based piezoresistive sensor
Connection to the M12x1.5 process
Accuracy: ≤0.25% of measured value

Electronic alphanumeric liquid crystal display three lines 16 characters
Full anti-tampering protection
6-button keyboard for setting the basic parameters
PTZ, PT or P volume conversion using SGERG-88 compressibility formula
ATEX Zone 1-----Il 2(1)G Ex ib [Ex ia Ga] T3 IIB T3 Gb -25 ≤ T amb ≤ 70°C
ECOR4 Nbiot can be installed on the wall or, using optional adaptor brackets, on the pipeline or on the counter itself
Cert. T10473 Rev. 1 0 del 13/11/2023

Data Communication

Nbiot communication (narrow band)
DLMS data communication protocols
Local communication via ZVEI infrared optical port, according to EN 62056-21 standard

Functionality

Conversion of the measured volume is done using an algorithm that requires the following variables:

Volume of gas measured by the meter: acquired by the device through the impulsive input.
Temperature: measured through an integrated digital probe
Gas pressure: measured by means of an integrated digital transducer.

The device calculates the degree of compressibility of the gas using standard methods or a constant value and finally provides the value of the converted volume (in standard m³)

Technical features ECOR4 Nbiot

Operating temperature	-25 °C / +60 °C
Storage temperature	-30 °C / +70 °C
Temperature basic conditions	15 °C
Error under reference conditions	<0,5 %
Error under operating conditions	<1 %
Degree of protection	IP66
Mechanical class	M2 mbar
Electromagnetic environment	E2
Temperature measurement range	-25 °C a +60 °C
Pressure measurement range (available options depending on transducer)	0,8/2 bar A 0,7/5 bar A 2/10 bar A
Dimensions	230x150x54 mm
Weight	2 Kg

Features and specifications approximate and subject to change.