How do I install a remote zero option?

I purchased an HI 2151/30WC remote zero option that came on a Secure Memory Module (SMM). How do I install it? It came without instructions.

When installing a new Secure Memory Module (SMM) the instrument should treated as a new installation.

Record any communications information and all the parameters from the old SMM using the front display to access the information.  You will need to re-enter all this information and re-calibrate the scale after the upgrade.  

The SMM cannot be hot swapped.   Installing the SMM under power will erase the TAG2 option code. There should have been a addendum included that says how to install the SMM with power OFF.  

With all the original setup parameters recorded.  Power down the controller, remover the old SMM and install the new SMM.  Apply power and wait for the boot cycle to complete.

The remote zero option is active with contact between the DIS terminal and ground terminal of the remote function terminal strip. The amount of zero is limited by the auto zero parameter and that zero limit is an accumulated amount of GROSS weight offset from the last calibration.  The NET weight has no limit and is set to zero using the tare function.

As an Example:  With a zero tolerance setting of 5 lb.  If you zero out 4 pounds gross using the zero button on the front display, and had the auto zero tolerance set for 2 lb.  The remote zero and auto zero tracking would fail to zero the additional 2 pounds on the scale.  Auto zero tracking, communications zero command, and remote zero all use the auto zero parameter tolerance.  Only the upper left hand zero button uses the zero tolerance parameter.  If remote zero does not function, enable auto zero tracking and see if that works.  If auto zero function also does not work, the zero shift from the last calibration is greater than the auto zero tolerance setting.  Increase the auto zero setting or re calibrate the scale establishing a new gross zero. If the remote zero still does not function.  Enter the self test menu and look for the TAG1 and TAG2 entries.  These should read TAG1=09 and TAG2=40.  The second tag number (40) represents the remote zero option is enable.  If the TAG2=40 is 00 or another number contact Hardy technical support to verify the option was correctly ordered or if an ordering error has occurred. 

The remote zero option can be ordered with a new controller with a special designation -119 or a field upgrade as the HI2151/30xx-119