Heinrichs Messtechnik GmbH
Operating Manual KDS/BGK
Page 27
16.6.2
Analog output 4-20mA
Parameters and Markings:
Manufacturer Heinrichs Messtechnik
Type KDSE, 4-20 mA current loop
passive; 14-30 V DC
Load max. 500
Ω
, ; connection with M12 plug
BVS 12 ATEX E 093 X
IECEx BVS 12.0061X
II 2G Ex ib IIC T4 G
II 2D Ex ib IIIC T135°C Db
When using the device in hazardous areas please read the explosion supplementary instructions of the
electronic module type KDSE. This includes all ex-relevant parameters and special conditions for safe
use.
16.6.3
Depending on the fluid and ambient temperature
The influence of the fluid temperature on the built-in limit transducer must be observed.
The excessive Temperature of the maximum fluid temperature based on the maximum ambient temperature
must be considered with a factor of 0.4.
Example of integrated limit switches:
Max. ambient temperature:
T
amb
= 40°C
Max. fluid temperature:
T
m
= 90°C
Temperature class:
T4
T
ü
= excessive Temperature
T
a
= Ambient temperature of the limit switches
T
ü
= T
m
– T
amb
= 90°C – 40°C = 50°C
T
a
= T
ü
*0,4+T
amb
= 50°C*0.4+40°C = 60°C
In accordance with the tables in the PTB 00 ATEX 2048 X EC Type Examination Certificate, the NJ 1,5-6,5 N...
inductive sensor must be operated in the T4 temperature class with an intrinsically safe circuit that does not
exceed the maximum values of the Type 3 circuit.
17
CE mark
The measuring system meets the statutory requirements of the following EU directives: Directive 2014/34/EU
(Equipment and Protective Systems for Use in Potentially Explosive Atmospheres) and Electromagnetic
Compatibility (EMC) Directive 2014/30/EU.
With respect to the Pressure Equipment Directive 2014/68/EU, the devices fall within the scope of application of
Article 4, Section 3, and requires no CE mark in accordance with this directive.
Heinrichs Messtechnik confirms compliance with the directives by attaching the CE mark.
For more informations refer to the Declaration of Conformity
