Filter
Top Products
Reference Manual
00809-0100-4808, Rev CA
June 2008
6-7
Rosemount 3051N
Operation Normal operation messages appear on the LCD 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” in
Section 2 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 you attempt to change the transmitter configuration
data while the security jumper is in the ON position. See “Transmitter
Security” in Section 2 for more information about the security jumper.
MOUNTING BRACKETS Optional mounting brackets available with the Rosemount 3051N facilitate
mounting to a panel. The standard bracket (option code B4) for use with the
Coplanar flange is stainless steel with stainless steel bolts. Refer to Figure 3-2
in Section 3 for dimensions and mounting configurations.
Option B2 is polyurethane painted carbon steel bracket designed for use with
the traditional flange. The B2 bracket is supplied with carbon steel bolts and
supports panel mounting. Refer to Figure 3-4 in Section 3 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 in
Section 3 for dimensions and mounting configurations.