HART security switchFigure 4-3:
A. HART security switch
B. Unused
5. Replace the safety spacer and end-cap.
6. Power up the meter.
4.4
Set the HART lock
If you plan to use a HART connection to configure the device, you can lock out all other
HART masters. If you do this, other HART masters will be able to read data from the device
but will not be able to write data to the device.
Restrictions
• This feature is available only when you are using the Field Communicator or AMS.
• This feature is available only with a HART 7 host.
Procedure
1. Choose Configure > Manual Setup > Security > Lock/Unlock Device.
2. If you are locking the meter, set Lock Option as desired.
Option
Description
Perma-
nent
Only the current HART master can make changes to the device. The device will
remain locked until manually unlocked by a HART master. The HART master can
also change Lock Option to Temporary.
Introduction to configuration and commissioning
26 Micro Motion
®
Gas Specific Gravity Meters (SGM)