Franklin Fueling Systems ATG Moormann Interface - Manual (Page 5)

1
Introduction
FFS’s Moormann ATG interface gives an electronic means to read a Moormann mechanical gauge. The Moormann 7S
tape gauge uses a 7 to 1 ratio that represents 7 feet of float movement in the tank for every foot of movement by the
magnet in the tape gauge housing and can accommodate tanks up to 35 feet tall. The Moormann 9S tape gauge uses a 9
to 1 ratio that represents 9 feet of float movement in the tank for every foot of movement by the magnet in the tape gauge
housing and can accommodate tanks up to 50 feet tall. The 7:1 or 9:1 ratio will be selected as part of programming the
probe data in the FFS ATG. Please see the ATG Programming Manual for further details.
New Moormann ATG Interface Installation
The following step-by-step instructions describe the process for installing a Moormann gauge. Refer to Figure A for an
assembly diagram.
1. Identify a desirable gauge position on the ground, and locate or install a suitable inlet fitting on the tank top near this
position (minimum 1" NPT, 2" NPT preferred). This fitting should be adjacent to or in the vicinity of a manhole large
enough to pass the gauge float through (see Figure A, Item 2). Mark the top edge of the tank directly above the ground
location for the gauge. Open the tank manhole access.
Warning
Observe all necessary precautions before opening the manhole or attempting to attach a new inlet
fitting.
2. Install a short, 2" NPT galvanized nipple, with adapters if necessary, in the tank opening. The nipple should be of
sufficient length for the horizontal gauge pipe to clear any tank protrusions or obstructions.
Note: Use galvanized pipe and fittings for all customer-supplied plumbing and a suitable pipe thread sealant on all
threaded joints.
3. Thread one gauge elbow (Figure A, Item 4) onto the tank nipple. Tighten the elbow down until the open end points
towards the mark on the tank’s edge from Step 1.
4. Obtain the lateral dimension from the end of the installed elbow to the edge of the tank from the mark in Step 1. Allow
for the following:
• Gauge vertical clearance from the side of the tank — minimum 12"
• Thread engagements
• Offset for second elbow installation
Determine the horizontal length of the two inch section of pipe. Cut and thread this section of pipe.
5. Install the second gauge elbow (Figure A, Item 4) on one of the 2" pipes from Step 4.
6. Install the supplied 2" x 1" reducing bushing (Figure A, Item 5) into the other end of this elbow. Thread a short, 1" pipe
nipple with half of a union into this bushing. Tighten all of the threaded joints.
7. Thread the other end of the 2" pipe assembly from Step 6 into the gauge elbow on top of the tank and tighten it until
the outside elbow points down.
8. Level the horizontal 2" pipe assembly with temporary wood bracing.
9. Set the gauge housing (Figure A, Item 9) with the eccentric cap (Figure A, Item 6) on the ground directly below the
overhanging elbow. Measure from the union half on the upper elbow to the 1" pipe fitting on the eccentric cap. Allowing
for thread engagement, cut and thread a suitable length of 1" galvanized pipe.
10. Connect the remaining half of the 1" union from Step 6 to one end of the pipe from Step 9. Remove and thread the
eccentric cap (Figure A, Item 6) to the other end of this pipe. Align and assemble the eccentric cap to the union half
attached to the upper gauge elbow and tighten the union so that the eccentric cap’s ¾" NPT probe port (see Figure A)
is closest to the wall of the tank.