Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
5-4
NOTE
Carefully remove the O-rings (23) from the cell if they do not come off when
the flange is removed. Do not pry the O-ring from its seat as damage to the
isolating diaphragm may occur.
3.
Clean isolating diaphragms with a soft cloth and a mild cleaning
solution.
Do not use any chlorine or acid solutions to clean the
diaphragms.
Rinse the diaphragms with distilled water.
Electrical Housing
Disassembly
1.
The signal terminals and the test terminals are accessible by
unscrewing the cover (1) on the terminal side. This compartment is
identified as “Terminal Side” on the nameplate. The terminals are
permanently attached to the housing and must not be removed.
2.
Circuit boards are located in a separate compartment identified as
“Circuit Side” on the nameplate. Remove power from the transmitter
before removing the circuit cover. Unscrew the cover (1) on the circuit
side to access the circuit boards. A special cover wrench (RMT P/N
01153-0382-0001) is available from Rosemount to remove and
replace the housing covers.
3.
E, N, and L Output: Unplug the amplifier board (13) after removing the
three holding screws (14). The L output board has an additional
captive screw that should be removed last.
4.
The header assembly board (10) is permanently attached to the
sensor module (24) and contains the temperature-compensating
resistors. Carefully pull this board off the bayonet pins. Rotate the
board 180° about the axis formed by the connecting leads. This
allows access to the calibration board (11).
5.
Disconnect the calibration board (11) by removing the three standoffs
(12) and aligning the zero and span adjust screws so that their slots
are perpendicular to the board. Remove the board by grasping the
interface pin and pulling outward.
A and D Output: Unplug the amplifier board (13) after removing 3
holding screws (14) and loosening the heat sink screw, which is
captive to the board. Remove the board by inserting a #6-32 screw in
the rivnut on the board. The header assembly board (10) is
permanently attached to the sensor module (24) and contains the
temperature compensating resistors. Carefully pull this board off the
bayonet pins by inserting a #6-32 screw into the rivnut on the board.
Rotate the board 180° about the axis formed by the connecting leads.
This allows access to the calibration board (11). Disconnect the
calibration board by removing the three standoffs (12) and aligning
the zero and span adjust screws so that their slots are perpendicular
to the board. Remove the board by inserting a
#6-32 screw in the rivnut on the board.
6.
If replacement of the zero and span adjustment screws (4) is
necessary, remove the nameplate (8) and detach the snap rings (6)
inside the housing.
Summary of Contents for Rosemount 1152 Alphaline
Page 6: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 1 2 ...
Page 10: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 1 2 ...
Page 20: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 2 10 ...
Page 34: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 3 14 ...
Page 40: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 4 6 ...
Page 52: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 5 12 ...
Page 64: ...Reference Manual 00809 0100 4235 Rev BA April 2007 Rosemount 1152 Index 2 ...
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