About The Manual; Maintenance And Environment; Radio And Emc - Secure Liberty 100 Technical Reference Manual

1 About the Manual

This manual is intended for technical users and installers of Secure Meters' Liberty 100 single-phase
single-element electricity meter. It describes functions and features of the meter (application firmware version
P4X2G04) and the Skyline-i 510 communication hub. The features and the displays may differ between
application firmware versions.

1.1 Maintenance and Environment

1. There is no maintenance, repair or adjustment intended for this meter. There are no interchangeable or
serviceable parts other than the communications hub.
2. The meter is intended to be installed in a mechanical environment 'M1', with shock and vibrations of low
significance, as per 2004/22/EC Directive and in electromagnetic environment 'E2', as per 2004/22/EC
Directive.
3. A visual inspection should be performed before installing the meter. The following should be checked, as a
minimum:
● No evidence of external damage or missing parts
● No missing or damaged wiring
● No evidence of overheating

1.2 Radio and EMC

1. This meter and the communications hub have been designed to operate with and are certified for use with
external antennas that have a maximum gain of 3 dBi. Antennas that have a gain greater than 3 dBi should
not be used with this device.
2. The meter or external antenna (if fitted) must be installed so that a minimum distance of 20 cm is
maintained between it and the consumer. The antenna must not be co-located or operate in conjunction
with any other transmitter.
Page 8 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02