BEKA BA377E-SS, Manual

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1. DESCRIPTION
The BA377E-SS is a rugged intrinsically safe, panel
mounting instrument with a single input that can be
configured as a Timer or as a Clock. As a Timer the
BA377E-SS is able to measure and display the
elapsed time between external events, or control
external events via two optional factory fitted control
outputs.
When configured as a Clock, the instrument can
display time in a variety of formats and the two
optional control outputs may be configured to switch
loads
on and off at pre-set times.
This instruction manual is divided into sections.
Common features
2. Intrinsic safety certification
3. System design for hazardous areas
4. Installations
5. Accessories
Timer
6. Operation as a timer
7. Configuration example
8. Maintenance
Clock
9. Operation as a clock
10. Configuration example
11. Maintenance
The BA377E-SS has been certified intrinsically safe
for use in gas and dust hazardous areas by Notified
Body Intertek Testing and Certification Ltd and
complies with the European ATEX Directive 2014/34/
EU. It has a rugged stainless steel enclosure and an
impact resistant glass window. In addition to normal
intrinsically safe applications, the certification allows
it to be installed in an Ex e, Ex n, Ex p or Ex t panel
enclosure without invalidating the panel enclosure's
certification.
The common features sections of this instruction
manual describe ATEX certification for use in gas
atmospheres. Dust certification is described in
Appendix 1.
For international applications the BA377E-SS has
IECEx certification which is described in Appendix 2.
This instruction manual supplements the abbreviated
instruction sheet supplied with each instrument.
2. INTRINSIC SAFETY CERTIFICATION
The BA377E-SS has IECEx and ATEX gas
certification. This section of the instruction manual
describes ATEX gas certification. IECEx and other
approvals are each described in separate
appendixes to this manual. The intrinsic safety of
the instrument is unaffected by whether it is
configured as a Timer or as a Clock.
2.1 ATEX gas certification
Notified Body Intertek Testing and Certification Ltd
have issued the BA377E-SS with an EU-Type
Examination Certificate number ITS16ATEX28408X.
This confirms compliance with harmonised European
standards and it has been used to confirm
compliance with the European ATEX Directive for
Group II, Category 1G equipment. The Timer or
Clock carries the European Community mark and
subject to local codes of practice may be installed in
any of the European Economic Area (EEA) member
countries. ATEX certificates are also acceptable for
installations in Switzerland.
This section of the instruction manual describes
ATEX installations in explosive gas atmospheres
complying with EN60079-14
Electrical Installation
Design, Selection and Erection. When designing
systems for installation outside the UK the local
Code of Practice should be consulted.
2.2 Zones, gas groups and T rating
The BA377E-SS Timer or Clock has been certified
Ex ia IIC T5 Ga. When connected to a suitable
system it may be installed in:
Zone 0 explosive gas air mixture
continuously present.
Zone 1 explosive gas air mixture likely
to occur in normal operation.
Zone 2 explosive gas air mixture not
likely to occur, and if it does
will only exist for a short time.
In gases that may be used with equipment having a
temperature classification of:
Group A propane
Group B ethylene
Group C hydrogen
Having a temperature classification of:
T1 450ºC
T2 300ºC
T3 200ºC
T4 135ºC
T5 100ºC