User manual

APPENDIX DX
IB-106-300NX SERIES
3-1
Install all protective equipment covers
and safety ground leads after equipment
repair or service. Failure to install covers
and ground leads could result in serious
injury or death.
Disconnect and lock out power before
working on any electrical components.
Disconnect and lock out power before
working on any electrical components.
SECTION III. SERVICE AND NORMAL MAINTENANCE
3-1. OVERVIEW.
This section describes service and
3-3. POWER SUPPLY REPLACEMENT.
routine maintenance of the MPS 3000 Multiprobe Test
Gas Sequencer. Replacement parts referred to are
available from Rosemount. Refer to Table 4-1 for part
numbers and ordering information.
3-2. FUSE REPLACEMENT
.
Power supply (58, Figure termination board (34).
3-1) contains two identical fuses. Perform the
following procedure to check or replace a fuse.
e.
Remove two screws (39) and washers (38)
NOTE
the power supply.
220 Vac versions use two 0.5 amp quick h.
Mount the new power supply onto the screws with
acting fuses (P/N 138799-014). 115 Vac
two nuts (60) and washers (59). Make sure the
versions use two 1 amp quick acting fuses
ground wires are connected to the upper mounting
(P/N 138799-004). Refer to Table 4-1 for
screw.
additional fuse specifications.
a.
Turn off power to the system.
j.
Install the terminal cover (37) with two screws
b.
Open fuseholder (40) and remove the fuse. After
checking or replacing a fuse, reinstall top of
k.
Connect the 24V connector to J11 on the
fuseholder (40). termination board (34).
a.
Turn off power to the system.
b.
Loosen two captive screws holding the MPS
cover (15, Figure 3-1). Open the MPS cover.
c.
Loosen two captive screws holding the inner
cover (16). Lower the inner cover.
d.
Disconnect the 24V connector from J11 on the
holding the terminal cover (37). Remove the
terminal cover.
f.
Tag and remove wires from terminals 1 and 4 or
5 of the transformer in the power supply (58).
g.
Remove two nuts (60) and washers (59) from the
screws holding the power supply (58). Remove
i.
Reconnect the wires removed in step f.
(38) and washers (39).
l.
Close and secure the inner cover (16) with two
captive screws. Close and secure the outer cover
(15) with two captive screws.