SandAlert Lite 2
nd
Edition
Page
21
7
SYSTEM SPECIFICATION
7.1 Senaco
Plus
Sensor (Superceded by Pulsarguard 2011 ATEX Version)
Approvals
•
CE approval (Certificate of Conformity available on request).
•
SENACO
Plus
sensor housing rated to IP68 / NEMA 4.
•
CENELEC Intrinsically safe certificates held to EEx ia IIC T6 (this rating applies when
the ambient temperature is below +40
o
C) or EEx ia IIC T5 T
amb
= 92
o
C (this rating
applies when the ambient temperature is below +92
o
C). Certifying body SIRA
Certification Services.
Construction
•
Rugged two part housing in cast Type 316 stainless steel.
•
Cap casting is polyester powder coated, in Cornflower Blue.
•
Neoprene O-ring.
•
Polycarbonate reverse printed badge bonded to cap casting.
•
4 metre double screened, black PVC jacketed 4 core (7 x 0.2 mm) PVC insulated cores
cable assembly. OD 6 mm nominal terminated with a lockable 4 way connector
•
All sensors manufactured under an ISO 9002 accredited Quality System. Certificate
number 950136. Approval body SIRA Certification Services.
•
Operating Temperature = -40
o
C to +85
o
C.
•
Output = Buffered & short circuit protected (current limited to 10 mA) analogue voltage
nominally 150 mV to 10 V. 2
µ
s / 240
µ
s time constant (rise / decay).
•
Maximum cable length between power supply / monitoring device and sensor is 1.0 km.
However, additional cable length will affect the output voltage offset as shown below.
The sensitivity of the sensor will not be affected.
