Hochiki SPC-E Mounting Manual

SPC-E Mounting Guidelines Page 1

SPC-E PHOTOELECTRIC BEAM DETECTOR
MOUNTING GUIDELINES

When installi ng the SPC-E Beam Detectors, it is important t hat the following guidelines are adhered to:

 Do not mount in locati ons that are exposed to

extremel y hi gh temper atures or water vapour.

 Do not mount SPC-E withi n 300mm of any

obstruction.

 Do not mount where the di stanc e between the

Emitter and Rec eiv er is less than 5 metres or greater
than 100 metres.

List of Parts

The SPC-E Beam Detector kit c onsi st s of three separate parts:

 SPC-E Receiver and Emit ter.
 2 x four pronged Mounti ng Pl ates.
 Test Filters (25%, 50% and 60%) .

 Make sure the surfac e that the SP C- E units are to

be mounted on is rigi d (i deally par t of the building
structure) t o av oid any possibility of movement.

 When fixing the SPC-E allow enough space t o gain

access to the sight hole for aligning purposes (this i s
located on the top ri ght hand side of the Receiver
unit, when viewed from the front).

Mounting the SPC-E Beam Detectors

The SPC-E Beam Detector s are designed to mount vertic ally onto the four pronged mounti ng br ac k ets suppli ed. These
brackets should be fixed securely to the wall and direc tly opposite each other, they m ust also be mount ed in the same
horizontal plane.

There are several wir ing methods available f or the SPC-E, all of which ar e further explained in our Applic ation Note
AP097 available from our website. The most common wiring method is shown below. In all methods, cables should be
brought through t he top of the back box, and terminated int o the appropr iate connector blocks. The S P C-E Beam
Detectors requi r e the use of an auxiliary 24Vd.c. Power Supply Unit (not supplied). The Power Supply and field wiring
should be termi nated into the front of the SPC-E. Refer to Fig.1 if t he panel r equires a short-circuit to produce a fire
condition. If the panel r equires a fire resistor refer to Fig 2.

Fig.1

Note: The Emitter c an be powered di r ec tly from a local 24Vd.c. power supply, t he Conv entional zone or an ESP loop.

Hochiki Europe ( UK ) Ltd 2-3-0-798/IS S 2/MAR08

SPC-E Mounting Guidelines Page 2

Starting at the emi tt er end, the cover
should be opened (ref er to Fig.3.)
the field wiri ng c an then be
connected either from behind the
detector or from below the det ec tor,
depending on the suit ability of the
installation. If the wires are to come
in from below, then it will be
necessary to break t he k noc k - out
slot from the bottom of t he detector
body (locat ed near to t he retaining
clip).

Fig.2
Hook the back of the det ector body to t he 4 prongs of the m ounting plate and slide down firmly, ensuring that the cables
are not trapped or dam aged by the det ec tor.

The stripped wires should be pushed into the holes of the connect or whilst the white push key is pressed with a sm all
screwdriv er , t his will enable the wire to push completely hom e, t he white push key can then be released, and this should
then grip the cable securely.

The Receiver
should then be
connected next.
Firstly open the
Receiver cover
(refer to Fig.3.)
and then connect
the field wiring
either from behind
or below the
detector,
depending on the
suitabili ty of t he
installation.

The Receiver
can then be
mounted onto
the Interface kit
by aligning the
four mounting
slots on the rear
of the Receiver
with the four
mounting hooks
on the mounting
bracket and then
sliding the
Receiver down
gently. The
cables should be
terminated as
shown in Fig.1.
or Fig.2.
Fig.3

Hochiki Europe ( UK ) Ltd 2-3-0-798/IS S 2/MAR08

SPC-E Mounting Guidelines Page 3

Setting up the SPC-E

Once power has been appli ed
(24VDC) the Beam Detector can now
be aligned. The covers on both the
Emitter and Rec eiv er need to be
open. The green polli ng LE D on the
Receiver should now be flashing once
per 3 seconds, but pl ease note the
units requir e between 30 and 60
seconds to fully power-up.

On the top right of the Rec eiv er there
is a sight hole, when looking through
this the Emitt er should be clearly
visibl e in the centre of this hole
(please ref er to Fig. 4.). If it isn’t, then
using the silv er ali gnm ent wheels (left
wheel horiz ontal adjustment, right
wheel vertic al adjustment) the
Receiver should be adjusted until the
Emitter is clearly visible.
This procedure should then be repeated at the Emitter end. Set t he distance switch on the emitt er accor ding to t he
monitoring distance and close the cover of the emitter. Close the cover, then fasten t he l oc ki ng screw, refer to Fig.5.

Fig.4

Once this has been achieved
the 4-part DIP switch needs to
be set. Bits 1 and 2 are set
according t o whic h si gnal
strength is requi r ed; there are
three choic es available, 25%,
50% and 60%.
Bit 3 can be set to switch the
signals to be emitted when the
beam is blocked to fault and
fire(OFF), or to fault alone(ON).
Bit 4 can be set to switch
between the automatic(OFF) or
manual(ON) recovery from the
fault status. Please note that if

the SPC-ET is set to show a
non-latching fault on total
obscuration, and the SPC-ET
beam is blocked for more th an
30 minutes then the faul t will
LATCH. To remove this fault
the SPC-ET will need to be
powered down, or the receiver
cover will need to be opened
and then closed to re­synchronise the receiver with
the emitter.

The cover on the Receiver can
now be closed (please refer to
Fig.5.), t his should be done
carefully, av oiding the possibility
of moving the SPC-E out of
alignment.

Closing the cov er on the r ec eiv er synchr onizes the receiver wit h the emitter, then automatically adjusts the
amplification factor of the reception circuit, then initiat es fi r e m onitoring.

Fig.5

Hochiki Europe ( UK ) Ltd 2-3-0-798/IS S 2/MAR08

SPC-E Mounting Guidelines Page 4

While synchronization is being established with the emitter and while the reception signal level is aut om atically
adjusted, the m onitor lamp (green) and fault lamp (yellow) on the receiver blink at i nterv als of three seconds. If the
system shift s successfully to the monitoring stat e, the monitor lamp (green) alone will blink. It takes about two minut es
for fire monitoring to begin after the receiver c ov er is closed. In t he meantime, take care not to block the beam. Once
this has complet ed the cover should be locked in place with the supplied locking screw (please ref er to Fig.5).

After the SPC-E has completed its initialisation it should be tested using the fil ters supplied. The range 1 filter rel ates to
25%, the range 2 filter relates to 50% and the range 3 filter relates to 60%. Firstly place the no alarm side of the filter in
front of the SPC-E for at least one minute this should cause no fi r e or fault signals, if a fault occurs the amber LED will
flash once every 3 seconds. Next place the alarm side of the filter in f r ont of the SPC- E for at least one minute. During
this time a fire alarm shoul d oc cur and the red LED should illuminate continuously, if no alarm occurs, then the SPC-E is
not operating as expec ted.

Installation Data

Allowable Misal ig nment Angle

Emitter ± 0.5° (max)
Receiver ± 1.0° (max)

Guide Settings

Range Sensitivity

5 ~10m 25% (1.25 dB)
10 ~ 100m 50% (3.01 dB)

Approved Settings

The SPC-E is EN54-12: 2002 appr oved at the 25% and 50% sensitivity settings.

Hochiki Europe (UK) Ltd

Grosvenor Road, Gillingham Bus ine ss Park,

Gillingham, Kent, ME8 0SA, England

Telephone: [phone] Facsimile: [phone]

Email: [e-mail] m

Web: www.hochiki europe.com

Hochiki Europe (UK) Ltd. reserves the right to alter the specification of its products from time to time without notice. Although ever y effort has b een
made to ensure the accuracy of the information contained within this document it is not warranted or represented by Hochiki Europe (UK) Ltd. to be
a complete and up-to-date description. Please check our web site for the latest version of this document.

Hochiki Europe ( UK ) Ltd 2-3-0-798/IS S 2/MAR08