
Options
October 2016
Reference Manual
00809-0100-4808, Rev DA
56
Options
B.3.5 Operation
Normal operation messages appear on the LCD display meter to confirm actions or inform you of transmitter status. Operation messages
are displayed with other transmitter information, and warrant no action to correct or alter the transmitter settings.
ZERO PASS
The zero value, set with the local zero adjustment button, has been accepted by the transmitter, and the output should change to 4 mA.
ZERO FAIL
The zero value, set with the local zero adjustment button, exceeds the maximum rangedown allowed for a particular range, or the
pressure sensed by the transmitter exceeds the sensor limits.
SPAN PASS
The span value, set with the local span adjustment button, has been accepted by the transmitter, and the output should change to 20 mA.
SPAN FAIL
The span value, set with the local span adjustment button, exceeds the maximum rangedown allowed for a particular range, or the
pressure sensed by the transmitter exceeds the sensor limits.
LOCAL DSBLD
This message appears during reranging with the integral zero and span buttons and indicates that the transmitter local zero and span
adjustments have been disabled. The adjustments may have been disabled by the transmitter security jumper on the transmitter circuit
board or through software commands from the HART Communicator. See
“Transmitter security” on page 4
for information on the
position of the security jumper, removal of local zero and span buttons, and for information on the software lockout.
WRITE PROTECT
This message appears if attempting to change the transmitter configuration data while the security jumper is in the
ON
position. See
“Transmitter security” on page 4
for more information about the security jumper.
B.4 Mounting brackets
Optional mounting brackets available with the Rosemount 3051N facilitate mounting to a panel. The standard bracket (B4) for use with
the coplanar flange is stainless steel with stainless steel bolts. Refer to
Figure 3-2 on page 28
for dimensions and mounting configurations.
Option B2 is polyurethane painted carbon steel bracket designed for use with the traditional flange (H2). The B2 bracket is supplied with
carbon steel bolts and supports panel mounting. Refer to
Figure 3-4 on page 30
for dimensions and mounting configurations.
Option BS is a 316LSST bracket supplied with carbon steel bolts and designed for use in panel mounting with the traditional flange (H2). It
is the same bracket used on other RNII nuclear qualified transmitters, including the Rosemount 1153 series D and Rosemount 1154. Refer
to
Figure 3-4 on page 30
for dimensions and mounting configurations.
Option PM is a SST pipe mount bracket assembly designed for use in pipe mounting the traditional flange (H2). It is the same bracket used
on other RNII nuclear qualified transmitters, including the Rosemount 1154 Series H.
When installing the transmitter to the optional mounting brackets, torque the bolts to 21 foot-pounds. See
“Mounting” on page 31
for
additional mounting considerations.
Содержание Rosemount 3051N
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