User's Manual Part 2

Chapter 5 National/Lancaster Meter Installation
48 100G Datalogging Installation Guide - Direct Mount
2. Unscrew one index mounting screw completely. Hold one hand under the index to
catch the screw. While removing the other mounting screw, pull the index away from
the meter to keep the index backplate against the back of the screw. Remove the screw
completely after the index is free of the meter.
Set the index aside where it will not be damaged or fill with dirt, rain or snow. The
index will be mounted in the endpoint later in this procedure. Discard the index
mounting screws. The 100G Datalogging Gas Endpoint for National/Lancaster meters
includes new, different-sized index mounting screws (see Installation Prerequisites on
page 8 for screw information).
3. Remove the old gasket, gasket residue, and dirt from the meter (if applicable). The
meter face must be free of gasket residue or dirt before you install the 100G
Datalogging Gas Endpoint assembly.