Technical information

Page 45
These detectors use two networked thermistors in
a bridge configuration to provide a fast response,
that depends both on absolute
temperature and notes the
change of temperature. The rate
of rise/fixed temperature heat
detectors can be used in areas
where smoke sensors are
unsuitable due to environmental
conditions (smoke, dust etc,).
Such areas include kitchens,
locker rooms, canteens,
garages, loading bays etc.
The integral electronics emulate
conventional fire detector's response curves and
transmit the state to a controller as an alarm
condition.
Datasheet - Product Code PSF84 “M600/900 Low
Profile Fire Detector Range”
Manual - Vol01B-04-D5 “Detectors Fire Manual”
Heat
Fixed Temperature 90°C
Product Codes Approval Branded Model
515455 UL Grinnell 632H
516.052.022 UL Thorn 632H
Technical Specification - M601 Series
MF MR MD MU
Weight 134g 122g 114g 137g
Material FR 110 Bayblend
Operating Temp. -20 to +70
o
C -20 to +70
o
C -20 to +70
o
C* -20 to +50
o
C
Storage Temp. -25 to +80
o
C -25 to +80
o
C -20 to +70
o
C -25 to +70
o
C
Relative Humidity 95% Non-Condensing
Quiescent Current(typ) 70µA 60µA 50µA 50µA
Alarm Current(typ) 40mA 36mA 40mA 40mA
Operating Voltage 18-32Vd.c. 18-32Vd.c. 18-32Vd.c. 18-32Vd.c.
*Short Term (<3min) -40 to +120
o
C
Typical Dimensions of Standard 4” Detector
These detectors react to the visible
and invisible fire aerosols
(products of combustion) and are
therefore capable of detecting the
early presence of hot smouldering
and flaming fires, such as wood,
paper etc.
They are particularly suitable for general
applications in all areas and use a dual ionisation
chamber in which the air is ionised by a single
radioactive source (33k Bq Americium 241). The
presence of smoke in the sampling chamber
causes a change in the balance voltage, between
the two chambers. This is then compared against
an alarm level.
Datasheet - Product Code PSF84 “M600/900 Low
Profile Fire Detector Range”
Manual - Vol01B-04-D3 “Detectors Fire Manual”
Ion Chamber Smoke
Technical Specification
Rate of Rise
Product Codes Approval Branded Model
516.052.001.A LPCB ADT MD601
516.052.001.T LPCB Thorn MD601
516.052.001.Y LPCB Tyco MD601
516.052.013.W VdS Wormald MD613
515453 UL Grinnell 612H
516.052.031 UL Thorn 612H
Fixed Temperature 60°C
Product Codes Approval Branded Model
516.052.011.A LPCB ADT MD611
516.052.011.T LPCB Thorn MD611
516.052.011.Y LPCB Tyco MD611
516.052.033.W VdS Wormald MD623
Product CodesApproval Branded Model
516.050.001.A LPCB ADT MF601
516.050.001.T LPCB Thorn MF601
516.050.041.W VdS Wormald MF613
516.050.031 UL Thorn 612I
515456 UL Grinnell 612I
516.050.401 Marine Thorn MF601M