The SD-503ST stand-alone combined smoke and heat detector
MLW5550
3
2
1
ON
Memory disabled
2
OFF
Smoke (EN 14604) or heat
(EN 54-5)
OFF
Memory enabled
3
OFF
2
ON
Heat only (EN 54-5) (no
smoke)
3
OFF
2
OFF
Smoke only (EN 14604)
(no heat)
3
ON
2
ON
Smoke and heat at the
same time (both conditions
concurrently)
3
ON
When the detector is installed in caravan trailers, use only the “smoke
only“ or “both smoke and heat” settings.
4.
Insert the batteries (3 X AA, alkaline 1.5 V)
5.
Close the detector cover.
The detector can be inserted into the
plastic base in one position only. The correct position is marked
with arrows on both plastic parts (4).
Note:
Detector cover closing is blocked unless all 3 batteries are
inserted!
The mounting base must not be replaced by bases meant for
detectors without the test button consisting of pressing the body
of the detector.
Fire alarm
A fire alarm
is signalled both acoustically and optically.
When the conditions for fire alarm triggering are met (smoke is
detected in the room, the alarm temperature is reached, or both), the
detector signals the danger by sounding the siren and quickly flashing
the LED indicator (3).
Silencing the siren during an alarm:
The siren can be silenced
by pressing the detector body against the base. The siren is then silent
for 10 minutes. If the detector still detects smoke or heat then, the
siren is reactivated.
When the need arises (e.g. in the case of a detector failure), it is
possible to postpone siren reactivation by up to 12 hours. This can be
done by pressing the detector again for 5 s after silencing the siren.
When the detector chirps, you have to release the pressure within 1s.
The switchover to the postponed siren mode is confirmed with 5
chirps. The detector LED flashes all the time during the postponement.
Alarm memory:
If it is enabled, alarm indication continues even
when the smoke clears or when the temperature decreases. The slow-
flashing indication lasts 24 hours unless it is terminated by pressing
the detector body.
Detector testing
The detector should be tested at least once per month.
To test
the detector press its body against the base and wait until the LED
indicator starts flashing. The LED flashing signals switchover to test
mode. The LED flashes for the whole duration of the test. When the test
is complete, the LED switches off. The detector then signals the result. If
the detector chirps once, no problems have been detected. If a fault is
discovered, the LED flashes three times. The detector flashes once
without acoustic indication if the test is finished and a low battery is
detected. If the battery is low, there is no acoustic signalling
The complete function of the detector can be tested with a testing
spray (e.g.. SD- TESTER) or hot air (e.g a hair dryer).
Warning: never test the detector with fire.
Fault indication
The detector checks its functioning. If it discovers a fault, it beeps
and flashes three times simultaneously, and then flashes three times
every 30 s.
A detector test can be carried out when a fault is signalled. To test the
detector, press its whole body against the base. During test the detector
checks whether the fault still exists. The LED flashes during the testing.
When the test is completed, the LED stops flashing and then signals the
result. A persistent fault is signalled by 3 flashes and 3 beeps. If the fault
has been removed, the detector chirps briefly.
If you have not managed to repair the fault, the detector must be sent to
a service centre.
Battery replacement
The detector checks the battery status and if the batteries are
running low, the detector signals that they need replacing by short
flashes every 30 s. Replace the batteries as soon as possible. Always
replace all three batteries with the same type and manufacturer.
Note
: For the best possible operation we strongly recommend using
only batteries supplied by Jablotron’s authorized distribution (avoid
usage of so called no-name batteries).
Do not throw used batteries into ordinary household waste.
Deposit them at authorized collection points.
Technical specifications
Power
3 x
alkaline batteries AA (LR6) 1.5 V
Please note: Batteries are not included
Typical battery lifetime
approx. 3 years
Smoke detection
optical light scattering
Smoke detector sensitivity
m = 0.11 - 0.13 dB/m pursuant to EN 14604:2005
Heat detection
class A1 according to EN 54-5
Alarm temperature
+60 °C to +65 °C
Operating temperature range
-10 °C to +65 °C
Dimensions, weight
diameter 126 mm, height 52 mm, 150 g
Conformity
EN 50130-4, EN 55022
14
1293-CPR-0390
1293
JABLOTRON ALARMS a.s. hereby declares that the SD-503ST detector is in compliance
with the essential requirements and other relevant provisions of Regulation 2011/305/EU,
2011/65/EU and Directive 2004/108/EC. The original of the conformity assessment can be
found at
- Technical Support section
Note:
Although this product does not contain any harmful materials we
suggest you return the product to the dealer or directly to the producer after
use. For more detailed information visit
