KROHNE IFC 210 E-EEx EN - Manual (Page 71)

Part C Special applications, functional checks, service, and order numbers Sect. 7.6
05/2002 IFC 210 E 71
7.6 Test of signal converter using GS 8 A simulator (option)
CAUTION!
The following applies to primary heads in hazardous areas:
Installation, electrical connection, commissioning and maintenance work may only
be carried out by persons who have been trained for work in hazardous areas and
are authorized to do so.
GS 8 A operating elements and accessories
a) Switch off power supply
before starting work !
A
mA meter, accuracy class 0.1,
R
i
< 500 Ohm, range 4-20 mA
b) Unscrew the 4 recessed head screws (S1)
on the front plate (see Sect. 8.1, Fig.).
c) Carefully pull off plug-in unit from subassembly
support.
d) The electrical connection is on the X1 and X2 connectors at
the rear hand side of the IFC 210 E signal converter as
shown in connection diagram with cable M.
Electronic frequency counter,
input resistance approx. 1 k Ohm,
range 0-1 kHz,
time basis min. 1 second,
see connection diagrams
in Sect. 2.5.
Electrical connection
D Switch,
Flow
direction
H Socket
for H1
plug On cable M
H1 Plug of cable M
L
Power supply ON
M Cable
between
GS 8A and IFC 210 E
signal converter
P
Potentiometer "zero point"
Y
Switch, Measuring ranges
Electrical connection
of mA meter and
electronic frequency
counter (see Sect. 2.5).
Power supply
connection