Elster ALPHA User Manual

General
This instructional leaflet contains general installation instructions for the following single phase and
polyphase watthour meters:
• socket-connected meters: 1S, 2S, 3S, 4S, 5S, 6S, 8S, 9S, 10S, 12S, 13S, 16S, 26S, 29S, 35S, 36S, 45S, 56S
• bottom-connected meters: 5A, 6A, 10A, 13A, 16A, 35A, 36A, 45A
See the following technical manuals for more information about the ALPHA meter:
•ALPHA
®
Meter Technical Manual (TM42-2180A or later)
• ALPHA Meter Options Technical Manual (TM42-2181B or later)
•ALPHA Plus
®
Meter Technical Manual (TM42-2182C or later)
• A3 ALPHA Meter Technical Manual (TM42-2190A or later)
All meters are calibrated and tested before shipment. For proper installation, accuracy, and maximum
life of the meters, use the following installation procedures.
Use authorized utility procedures to install and service metering equipment. Dangerous voltages are
present. Equipment damage, personal injury, or death can result if safety precautions are not
followed.
Use circuit closing devices on any current transformer secondaries (3S, 4S, 5S, 5A, 6S, 6A, 8S, 9S, 10S,
10A, 26S, 29S, 35S, 35A, 36S, and 36A meters). Equipment damage, personal injury, or death can
result if circuit closing devices are not used.
Form 45S, Form 45A, and Form 56S meters present additional risks of electrical shock that may result
in severe personal injury or death when the cover is removed from energized meters unless certain
additional safety procedures and precautions are followed. Be sure to follow the safety procedures
and precautions when servicing Form 45S, Form 45A, and Form 56S meters as stated in this manual
(see “Forms 45S, 45A, and 56S safety precautions” on page 3) as well as your authorized utility
procedures.
ALPHA meter
Installation instructions
IL42-4001S

Elster ALPHA Specifications

General

Communication	M-Bus
Display	LCD
Outputs	Pulse output
Power Supply	3.6 V DC
Operating Temperature	-25°C

Summary

Installation Procedures

Socket-Connected Installation

Procedures for installing socket-connected ALPHA meters, including pre-installation checks.

Bottom-Connected Installation

Steps and checks for installing bottom-connected ALPHA meters.

Forms 45S, 45A, and 56S Safety Precautions

Specific Form Safety Concerns

Safety concerns for Form 45S, 45A, and 56S meters related to grounding.

Installation Wiring Diagrams

Single Phase Meter Wiring

Wiring diagrams for various single-phase ALPHA meter forms.

3 Wire Delta Meter Wiring

Wiring diagrams for 3-phase, 3-wire delta ALPHA meter forms.

3 Wire Wye Meter Wiring

Wiring diagrams for 3-phase, 3-wire wye ALPHA meter forms.

4 Wire Delta Meter Wiring

Wiring diagrams for 3-phase, 4-wire delta ALPHA meter forms.

4 Wire Wye Meter Wiring

Wiring diagrams for 3-phase, 4-wire wye ALPHA meter forms.

Battery Installation and Replacement

Relay Output Color Coding

ALPHA and ALPHA Plus Relay Assignments

Assignments for KYZ1, KYZ2, KYZ3, KYZ4 relays in ALPHA and ALPHA Plus meters.

A3 ALPHA Relay Assignments

Information on programmable relays for A3 ALPHA meters.

FCC Compliance

Class B Devices

Compliance limits for Class B digital devices and interference mitigation.

Class A Devices

Compliance limits for Class A digital devices and commercial environment use.

Compliance Statement

Device compliance with FCC Part 15 rules and operating conditions.

Industry Canada Compliance

Statement regarding Industry Canada compliance for digital apparatus.

Warranty Disclaimers

Module and Meter Operation Warranty

Disclaimer for third-party modules and combined module/meter operation.

General Warranty and Liability Limitations

Limitations of warranties and liability for Elster Solutions, LLC products.