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Reference Manual
00809-0100-4108, Rev BA
Section 4: Electrical Installation
March 2014
Electrical installation
4.4
Configuring transmitter security
There are four security methods with the Rosemount 2088 transmitter.
Security switch
HART Lock
Configuration Buttons lock
LOI password
Figure 4-2. 4-20 mA electronics board
Note
1-5 Vdc Alarm and Security switches are located in the same location as 4-20 mA output boards.
4.4.1
Setting security switch
The security switch is used to prevent changes to the transmitter configuration data. If the
security switch is set to the locked location (
), any transmitter configuration requests sent via
HART, LOI, or local configuration buttons will be rejected by the transmitter and the transmitter
configuration data will not be modified. Reference
Figure 4-2
for the location of the security
switch. Follow the steps below to enable the security switch.
1.
Set loop to manual and remove power.
2.
Remove transmitter housing cover.
3.
Use a small screwdriver to slide the switch to the lock (
) position.
4.
Replace transmitter housing cover; cover must be fully engaged to comply with
explosion proof requirements.
Without LCD display meter
With LCD display /LOI display
A. Alarm
B. Security
A
B
