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INTRODUCTION
I-E96-427B
4 - 1
SECTION 4 - REPAIR/REPLACEMENT PROCEDURES
INTRODUCTION
Repair procedures are limited to fuse and termination unit
replacement. If the NTMF01 Multi-Function Controller Termi-
nation Unit fails, remove it and replace it with another one.
FUSE REPLACEMENT
If the fuse (F1) opens, replace it with a fuse having an equiva-
lent rating. Table
describes the fuse and lists its Bailey part
number. To replace a fuse:
1. Turn off power to the cabinet.
2. Remove the blown fuse from its holder (F1).
3. Replace the blown fuse with a 0.25 amp fuse.
4. Turn on power to the cabinet.
TERMINATION UNIT REPLACEMENT
If you determine that the termination unit is faulty, replace it
with a new one.
Do not
try to repair the unit; replacing compo-
nents may affect the unit performance and certification. When
replacing a termination unit, observe the special handling
guidelines listed in
NOTE: Turn off power to the field device before removing the
RS-232-C cables from the TMF unit.
Table 4-1. Recommended Spare Parts List
Description
Part Number
Fuse, 0.25 A, 250 V
194776A12500
CAUTION
Remove modules from their assigned module mounting unit
slots before installing or removing a cable connected to that
slot. Failure to do so could result in damage to the module.
ATTENTION
Retirer le module de son emplacement dans le chassis de
montage des modules avant d'installer ou de retirer un cable
assigne a cet emplacement. Un manquement a cette procedure
pourrait endommager le module.