The u.Meter, Smart Ultrasonic Gas Meter, is designed and manufactured to measure the volume of Natural Gas & Liquefied Petroleum Gas (LPG). The measurement technology is based on an innovative ultrasonic sensor which integrates also the temperature sensor

GENERAL DESCRIPTION

U.METERULTRASONIC GAS METER

for volume conversion and permits to obtain an high precision and performance.The gas meters satisfy the new generation of smart devices to fulfill all requirements of European and International standard MID-OIML. Quality guarantee Made in Italy.

SPECIFICATIONS

DISPLAY• Total volume at base conditions, at alarm conditions, for each tariff zone (F1, F2, F3);• End date of previous billing period;• Maximum conventional flow for previous billing period;• Point of delivery;• Current date/time & tariff zone (F1, F2, F3);• Valve status:

- open, close, enabled for re-opening;• Meter status:

- not configured, normal, maintenance;• Current diagnostic & message for the user.

HISTORICAL DATA• Daily historical data (last 80 days);• Billing period historical data (last 10 billing periods).

EVENTS LOGBOOK• Metrological event logbook (192 events);• Non-metrological event logbook (192 events).

LIST OF MAIN EVENTS• Battery level < 10% and battery below the critical level and battery replacement;• Gas temperature above/below the accepted maximum physical value;• Reverse flow detected;• Fraud attempts detected;• Error when opening/closing valve;• Firmware upgrade.

METALLIC BODY• High corrosion-resistance coated steel with coating composition of zinc in combination w/ aluminum, magnesium and silicon.

DIMENSIONS

CERTIFICATION

1. Small Model

2: H, L, E; 3: P; (EN437)

Class 1.5

0.003 m3/h / 0.012 m3/h

0.6 m3/h / 6.0 m3/h

500 mbar

<= 2 mbar

>= 8 years: communication battery; >= 15 years: metrological battery;

IP55

0% to 95% (non-condensing)

M2 (mechanical)E1 (electromagnetic)

-25ºC to +55ºC

Integrated valve w/ status signalMax leakage: 120cc/h at Pin = 500 mbar

Display LCD icons & charsVisible area 73x21mm

Optical port ZVEI comply to standard IEC 1170 (EN62056-21)

GSM/GPRS (2G)UMTS/HSPA (3G)NB-IoT (4G)LTE Cat M1, US (4G)LTE Cat M1/NB1

868MHz LoRaWAN

Communication protocol in accordance w/ UNI/TS 11291 (DLMS/COSEM)

Cubic Metres indications8 digits (3 decimals)

2 push buttons

Gas Group Family

Accuracy Class

Qstart / Qmin

Qt / Qmax

Max Pressure

Load Loss

Battery Life

Resistance toDust & Water

Relative Humidity

Environment Class

Operating Temp

Electrovalve(EN 16314)

User Interface(UNI/TS 11291.6)

Local Interface

Communication Module

2. Large Model

100

3/4''

1.61

3/4''

2.53

152110

1'' 1''

220

1'' 1/4 1'' 1/4

250*C (mm)

Small Model Large Model

Connections

Weight (kg)

WWW.ISASENSING.COM DC471 | ED03 | EN

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TECHNICAL FEATURES MAIN FEATURES

• Ultrasonic flow sensor;• Integrated temperature sensor;• Integrated shut off valve;• High corrosion-resistance coated steel;• Indoor and outdoor installation;• Integrated earthquake sensor for automatic shut off valve (optional);• Custom application by integrated valve, prepayment and multi tariff management;• Low losses and low flow measurement.