KROHNE DA Flap-type EN - Manual (Page 15)

8.2.3
Technical data of ESK II
Auxiliary power 12 (18 * ) to 30 V DC
Measurement signal 4.00 to 20.00 mA for 0 to 100 % flow value
> 20.8 mA for alarm status
Auxiliary power influence < 0.1%
Dependency on external resistance < 0.1%
Temperature influence < 5 μA / K
Max. external resistance / load 0 (250 * ) to 800 Ohms
* These values are to be observed as minimum values during HART TM communication.
9 Service
9.1 Contact insert
Bring the contact pointers (1) together in the center
Loosen the locking screw (2) of the contact pointers
Slide the contact insert into the third rail until the semicircle (3)
encloses the pointer support.
The connecting terminals of the contact insert have a pluggable
design and can be removed in order to connect the lines.
9.2
Installing an ESK
Assembly is based on the plug-in technique.
Insert the push-in lugs of the ESK under the
two studs of the baseplate (1).
Using slight pressure, press the ESK on to
the spring bolt (2) until it locks home and is securely
fastened.