Astra-43A
Addressable hardwired
heat detector
User guide
Manufacturer:
ZAO NTC TEKO
420108, Russia, Kazan,
Gafuri str., 71
Tel.:+7(843) 528-03-69
Made in Russia
Rev. 43
А-v1_7_instr_en
1 FUNCTION
The detector is designed for detecting fixed tem-
perature or rate-of-rise, forming a
‘fire alarm’
notification and transferring the notification to the
Astra-A RPA via Signaling Line Circuit (SLC).
Compatible with Control Panels: Astra
–812 Pro or
Astra
–8945 Pro (firmware version 4_0 or version
higher).
The detector provides measurement and transmission
via SLC according to Astra-A RPA Extender parame-
ter:
ambient temperature (°С).
● Astra–43A is powered by Astra-A RPA Extender.
2
SPECIFICATION
Power supply voltage, V ................................ 7.5
– 27.6
Maximum current consumption, mA ......................... 0.5
Response time, (sec.), at the rate of temperature rise
5
°С/min ............................................................ 120–500
10
°С
/min ..........................................................60 - 242
20
°С
/min ..........................................................30 - 130
30
°С
/min ..........................................................20 - 100
Response temperature, °С .................................54 - 65
Overall dimensions, mm:
- diameter ................................................................. 106
- height ........................................................................ 60
Operating Conditions
Temperature range,
°
С
....................... from - 30 to + 70
Relative air humidity
, % ...................... up to 93 at +40
°
С
without moisture condensation
3 DELIVERY SET
Delivery set includes:
fastening parts (dowels
– 2 pcs.,
screws
– 2 pcs.),
user guide
– 1 pc
.
4 INDICATION
Status
Red LED
Standby mode
1-time flash with a period of 8-9
sec.
Fire alarm
1 time flash with a period of 2 sec.
when the response temperature is
reached
Fire test
1-time flash with a period of 2 sec.
within 30 sec. after receiving the
"Test" command from the Laser
Pointer "Astra-942" (LP)
Detector's
failure
3 times flashes with a period of 25
sec. until the failure is fixed
Command
receiving
(LaserPointer)
1 time flash for 2-5 sec
5 ADDING TO THE SYSTEM
1)
Connect the RPA to the Control Panel using RS-
485 interface.
2)
Add the Astra-A RPA Extender to the Control
Panel according to the
user guide of the panel
Astra-812
Pro or the PKM Astra Pro built-in manual.
3)
Remove the electronic unit
by turning it counterclockwise
relative to the base.
4)
Connect the SLC power
(terminals "+" and "-") and the
SLC interface (terminals "A"
and "B") from the Astra-A RPA
to the terminals on the base.
5)
Run the RPA registration
mode according to the
user
guide of the panel
. It takes
60 sec to register a detector.
6)
Run the registration mode
via two possible ways:
- setting the detector on the base (p. 8, a. 5
)
(power is
on and SLC connected);
