Elster A1120 User Manual

A1120/40 - Electronic Polyphase Meter 1
© Elster Metering Limited - M181 001 2G - 5/2010
1 FOREWORD...................................................................................................................................5
2 WARNINGS.....................................................................................................................................6
3 COMPLIANCE WITH STANDARDS AND EUROPEAN DIRECTIVES ..........................................7
4 APPROVALS ..................................................................................................................................7
5 INTRODUCTION.............................................................................................................................8
6 GENERAL DESCRIPTION ...........................................................................................................10
6.1 BASIC METER TYPES ........................................................................................................................ 10
6.2 CURRENT AND VOLTAGE RATINGS ..................................................................................................... 10
6.3 SYSTEM CONNECTIONS..................................................................................................................... 10
6.4 TERMINAL ARRANGEMENTS ............................................................................................................... 10
6.5 METER ACCURACY ........................................................................................................................... 11
6.6 METER CASE ................................................................................................................................... 11
7 OVER VOLTAGE OPERATION....................................................................................................11
8 IMPORT ACTIVE REGISTRATION ..............................................................................................11
9 TEST INDICATORS & ANTI-CREEP............................................................................................ 12
10 FEATURES OF THE A1120/40 METER.......................................................................................12
10.1 REGISTRATION OF QUANTITIES .......................................................................................................... 13
10.1.1 kWh ............................................................................................................................................... 13
10.1.2 kvarh.............................................................................................................................................. 13
10.1.3 kVAh.............................................................................................................................................. 13
10.1.4 Customer Defined Registers ......................................................................................................... 14
11 TARIFF STRUCTURE...................................................................................................................14
11.1 TIME-OF-USE REGISTERS .................................................................................................................. 15
11.2 DEMAND REGISTERS ........................................................................................................................ 15
11.2.1 TOU Maximum Demand Registers............................................................................................. 15
11.3 SWITCHING TIMES ............................................................................................................................ 16
11.4 SEASONS AND CHANGE OF SEASON DATES ........................................................................................ 16
11.5 EXCLUSION DATES ........................................................................................................................... 16
11.6 END OF BILLING (EOB)..................................................................................................................... 17
11.7 DAYLIGHT SAVINGS .......................................................................................................................... 18
11.8 INDEPENDENT DAY CONTROL ........................................................................................................... 18
11.9 DEFERRED TARIFF AND DEFERRED TARIFF CHANGEOVER DATE ........................................................... 19
11.10 TARIFF/DISPLAY SCHEME VERIFICATION ............................................................................................. 19
12 EXTERNAL REGISTERS (FIRMWARE VERSION C ONLY).......................................................19
13 SECURITY FEATURES................................................................................................................20
13.1 DATA RETENTION ............................................................................................................................. 20
13.2 RECORDABLE SECURITY FEATURES ................................................................................................... 20
13.2.1 Phase Present/Phase Fail Indication............................................................................................. 20
13.2.2 Reverse Energy Flow .................................................................................................................... 20
13.2.3 Power Fail ..................................................................................................................................... 21
13.2.4 End of Billing Event ....................................................................................................................... 21

Elster A1120 Specifications

General

Brand	Elster
Model	A1120
Category	Measuring Instruments
Language	English