Installation Manual

Chapter 2 Hardware Installation Accu-Wave
2-4 TN Technologies
Mounting the Gauge
When mounting the gauge, ensure there are no obstructions between the antenna and the
surface of the process material. If obstructions cannot be avoided, refer to “False Echo
Management” in the Accu-Wave Operation Manual (717791).
Caution: Use proper lifting procedures to avoid injury.
Rod Antenna
1 Inch NPT Bushing Mounting
To mount a gauge with the 1 inch NPT bushing mounting option, simply screw the
threaded bushing into the corresponding fitting on the tank.
Note: Do not apply force to the housing to tighten the bushing. Use a wrench on
the hexagonal portion (1 3/8 in.) of the bushing.
Mount the gauge to the tank before attaching any wires or conduits.
Flange Mounting Instructions
You need the following (supplied by the customer):
1. 1 gasket suitable for the process material
2. 16 steel washers
3. 8 nuts and bolts
150 lb flange – use 5/8 inch hardware
300 lb flange – use 3/4 inch hardware
Refer to dimensional drawing 868656. Follow these steps to mount the gauge.
1. Center the gasket, suitable for your process material, on the nozzle flange.
2. Slide the antenna into the opening. Center the sensor flange on the gasket and
line up the bolt holes in the sensor flange and the nozzle flange.
3. Install the bolts and washers, and attach the nuts. Tighten the bolts in a star-
patterned sequence to equalize compression.