Reference Manual
00809-0100-4690, Rev FC
June 2011
2-15
Rosemount 2088 and 2090
CONFIGURE SECURITY
AND ALARM
Write Protect
There are three security methods in the Rosemount 2088/2090 transmitter:
1. Security Jumper: prevents all writes to transmitter configuration.
2. Local Keys (Local Zero and Span) Software Lock Out: prevents
changes to transmitter range points via local zero and span
adjustment keys. With local keys security enabled, changes to
configuration are possible via HART.
3. Physical removal of Local Keys (Local Zero and Span) Magnetic
Buttons: removes ability to use local keys to make transmitter range
point adjustments. With removing local keys, changes to
configuration are possible via HART.
You can prevent changes to the transmitter configuration data with the write
protect jumper. Security is controlled by the security (write protect) jumper
located on the electronics board or LCD display. Position the jumper on the
transmitter circuit board in the “ON” position to prevent accidental or
deliberate change of configuration data.
If the transmitter write protection is in the “ON” position, the transmitter will not
accept any “writes” to its memory. Configuration changes, such as digital trim
and reranging, cannot take place when the transmitter security is on.
Do not apply torque directly to the electronics housing. Rotation between the electronics housing and the
process connection can damage the electronics. To avoid damage, apply torque only to the hex-shaped
process connection. Use a backup wrench on Process Connection when installing an adapter.
Electronics
Housing
Process
Connection
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