RTK DB5
October 2016
32 INS DB5 Rev 9
Intrinsically safe specification
Certification
Certified by BASEEFA to Ex II 1G, EEx ia IIC T4
(Ta -20°C to 55°C) to CENELEC standards.
Certificate No. BAS00ATEX1259
Location
IIC T4, installation can be in any zone.
Safety parameters
DB5:
Ui = 28V, Ii = 28mA, Pi = 0.81W
Ci = 0, Li = 20mH + 1000Ω
The DB5 sounder has an internal resistance Ri of 1000Ω
which ensures that the input current limit Ii for inductive
safety is not exceeded
DB5-12:
Ui = 15.7V, Ii = 37mA, Pi = 0.56W
Ci = 0, Li = 20mH + 325Ω
The DB5-12 sounder has an internal resistance Ri of
325Ω which ensures that the input current limit Ii for
inductive safety is not exceeded
Supply
DB5:
Min/max at terminals = 15-28VDC
Current (through interface) = 14mA
DB5-12:
Min/max at terminals = 9.6-15VDC
Current (through interface) = 12mA
EMC compliance
Immunity to EN50082-2:1995
Emissions to EN50081-2:1994
Terminals
For conductors up to 2.5mm
2
DB5:
Zener barrier interfaces
Suitable models are: 24v version MTL7728+, 12v version
MTL7715+
Galvanic isoloator interfaces
Suitable models are: MTL5025
DB5-12:
Zener barrier interfaces
Suitable model: MTL7715+
Weight
300g
Environment
Operating temperature -20 to +55°C
Storage temperature -40 to +80°C
Humidity 5-95% RH, non-condensing
Protection IP65
Construction
ABS enclosure with encapsulated electronic module.
Colour red.
Electrostatic risk
By virtue of it’s shape, design and position of use, it is not considered to be an electrostatic risk, however, the
apparatus must not be installed in a position where it may be subjected to an excessive air flow that might cause an
electrostatic build-up.
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