8.4.2
Dismantling of CLM 223
• Consider potential effects on process
when removing the instrument from service!
• First pull off the terminal block (item 420 b)
on the rear of the instrument to de-energize
the instrument.
• Then pull off the terminal blocks (items 420
a and 430 if applicable) on the rear. Now
you can dismantle the instrument.
• Push the end frame latches (item 340)
inward and pull off the frame towards the
rear.
• Loosen the special screw (item 400) by
turning it counterclockwise.
• Remove the complete electronics block
from the housing. The modules are
plugged together mechanically and can be
easily separated:
–
Simply pull the processor/display module
off towards the front
–
Pull the back plate tabs outward slightly
to remove the lateral modules.
8.4.3
Assembly of CLM 223
• Reverse the dismantling sequence for
assembly.
• Hand-tighten the special screw without
using a tool.
• Incorrect assembly is not possible!
A module block which has been plugged
together incorrectly cannot be inserted in
the housing.
8.4.4
Spare parts for CLM 223
Item
Designation
Name
Function
Order number
15
Power supply unit
LSGA
100/115/230 V AC
51500317
20
Power supply unit
LSGD
24 V AC + DC
51500318
290
Relay module
LSR1-2
2 relays
51500320
300
Relay module
LSR1-4
4 relays
51500321
40
Conductive central module
LSCH-S1
1 current output
51501210
50
Conductive central module
LSCH-S2
2 current outputs
51501212
60
Conductive central module
LSCH-H1
1 current HART
51501213
70
Conductive central module
LSCH-H2
2 current o HART
51501214
80
Conductive central module
LSCP
Profibus PA / no current outp.!
51501215
40
Inductive central module
LSCH-S1
1 current output
51501216
50
Inductive central module
LSCH-S2
2 current outputs
51501218
60
Inductive central module
LSCH-H1
1 current HART
51501219
70
Inductive central module
LSCH-H2
2 current o HART
51501220
80
Inductive central module
LSCP
Profibus PA / no current outp.!
51501221
240
Conductivity transmitter
MKIC
Cond. + temp. input
51501206
330, 340
Housing assembly
With front membrane, key
tappets, gasket, special
screw, tensioning brackets,
all nameplates
51501075
310, 320,
340, 400
Mechanical housing parts
Back plate, side wall, end
frame, special screw
51501076
420a, 420b
Terminal strip set
Terminal strips for inputs /
outputs and for supply / alarm
relay
51501203
430
Terminal strip
Terminal strip for relay module
51501078
345
Ground terminal strip
PE and screen connections
51501086
LM253E08.CHP
Liquisys M CLM 223 / 253
Diagnosis and corrective maintenance
Hauser
61