Palex 620 Manual

HEAT DETECTOR
Description
The Conventional Photo–electronic heat detector uses a state
of-the-art optical sensing chamber. This detector is designed to
provide open area protection and to be used with most
conventional fire alarm panel.
The Conventional rate of rise heat detector uses thermal
component to detect the temperature changing in the
environment. It can enable fire alarm when the temperature
difference achieved the setting rate of rise temperature value,
reach the setting fixed value. It has a stable and reliable working
performance.
Two LEDs on each detector provide local 360 visible alarm
Indication. They flash every six seconds indicating that power
Is applied and the detector is working properly. The LEDs latch
On in alarm. LEDs will be off when a trouble condition exists
That the detector sensitivity is outside the listed limit. The alarm
Can be reset only by a momentary power interruption.
The detector that initiated the alarm condition will have its red
LED and relays latched until reset by panel.
Features

Advanced algorithms provide advanced
detection discrimination

Dual LED for 360 degree visibility

High immunity against unwanted alarms

Stable optical smoke sensing chamber. No
adjustment or replacement required

Easy installation

Replacement required

2 wire based detector

Low maintenance
INSTALLATION
Note :
All wiring must conform to applicable local codes,
Ordinances and regulations.
Model No. 620
Specifications
MODEL NO.
Operating voltage Range
Alarm current (Max)
Start-up time
Alarm indicator
Maximum Alarm Current (LED on)
Operating Humidity Range
Operating Temperature Range
Height
Weight
Adjustable Sensitivity
Diameter
Reset Voltage
Reset Time
620
9 to 32 VDC Volts Non - polarized
≤ 2 mA
≤ 30 s
Dual Red LEDs
≤ 55mA @ 24 VDC
≤ 10% to 93% Relative Humidity
Non- Condensing
14o F to 120o F ( -10 C to 49 C)
2.2" (55mm) installed
in base
5.5 oz. (155g)
1-2.5% / FT
4.0" (103 mm)
≤ 3 V
≤ 30 S