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Preface
Certifications
The GT8 has been certified for use in the following markets
Europe
CE Certification
USA
FCC, UL 62368-1
India
BIS Certification
In addition, the clock has been certified to comply with the requirements of the CB certification authority
which may meet compliance requirements in their member countries. For further information regarding CB
certification please see
www.iecee.org/dyn/www/f?p=106:40:0
, or discuss with Grosvenor Technology’s
professional services team.
If the GT8 is intended to be used in countries other than those listed above, please contact Grosvenor
Technology’s professional services team to discuss how we can assist with certification.
Battery Life
The GT8 terminal is fitted with a Lithium-Ion battery which typically has a service life of between 3 and 5
years. In order to ensure the continued reliable operation of the back-up battery function we recommend
regularly checking the condition of the battery and replacing it when it has reached the end of its service life.
The GT8 is also fitted with a button cell type battery on the main PCB to maintain the real-time clock (RTC)
of the device when power is removed. This battery typically has a service life of around 10 years. The
battery should only be replaced by suitably qualified engineers and care should be taken to avoid damage to
the PCB caused by ESD (ElectroStatic Discharge). Replacement batteries must be of the same type as the
original, and the old battery should be disposed of in accordance with local regulations.
Care should be taken when recycling the terminal to ensure that the batteries are removed and recycled in
accordance with local regulations/legislation.
Maintenance
The GT8 terminal does not require any regular maintenance during its service life.
It is however recommended that periodically (once every 6 months) the condition of the battery should be
checked to see if there are signs that it’s reaching the end of its life. Occasionally, the battery may start
to swell towards the end of its life, if this is noticed, the battery should be replaced (Part Number: EM-BB-
2HR-A).
Cleaning
Cleaning of the outside of the terminal can be undertaken at intervals appropriate to the environment
that it is being used and the frequency of use. In all cases it is recommended that the surface of the
clock is wiped with a lint free cloth that has been dampened with up to 70% isopropyl alcohol. We do not
recommend spraying liquids directly onto the surface of the clock as this could potentially cause damage to
the electronics. Particular care should be taken when cleaning the display and biometric devices to prevent
damage.
Installation Safety
The GT8 clock should be installed in accordance with the instructions documented in this user guide. The
clock should be installed in compliance with any Health and Safety legislation and it is recommended that
any electrical or network connections to the clock are undertaken by a suitably qualified engineer.
The GT8 clock is designed to be installed indoors only with a normal ambient operating temperature
between 0-35 Deg C (32-95 Deg F).
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