Specifications

METTLER TOLEDO Weigh Module Systems Handbook

(12/99)8-8

Base Plate

Hex Bolt

Flat Washer

Lock Washer

Hex Nut

Web Stiffener

Figure 8-8: Base Plate Bolted to Structural Beam

After securing all the top plates and base plates, slowly raise the weighbridge off the

lower part of the weigh modules and replace each alignment tool with a rocker pin

(see Figure 8-9). Place a rubber O-Ring on each end of each rocker pin. Lubricate

the O-Rings and both ends of the rocker pins with a high-quality grease, such as

FEL-PRO Food Grade AA Anti-Seize lubricant.

Figure 8-9: Rocker Pin Arrangement for Centerlign Weigh Modules

Slowly lower the weighbridge and top plates onto the lower part of the weigh

modules. Then apply load to the load cells and move the weighbridge back and

forth several times to align and seat all components. Make sure there is adequate

clearance between all bumper bolts and load cells. If bumper bolts are not torqued

properly, they can back out and bind the scale, leading to weighing inaccuracies.

10.

Mount the junction box at a location where the load cell cables can be properly

terminated in the junction box. Do not mount the junction box on the scale.

Note: Each load cell is supplied with a standard length of cable. Do not lengthen or

shorten load cell cables in the field! Changing the length of a load cell cable will

affect the output signal from the load cell. If a cable is too long, simply coil the

excess cable and place it in or near the junction box. Nonstandard lengths of cable

can be ordered for applications that require them.

11.

Connect the load cell cables to the junction box and terminate the wires according

to the wiring and color code decal on the under side the junction box lid.

12.

Connect the home run cable from the scale indicator to the junction box.

13.

Confirm that all live-to-dead connections (such as piping) are flexible and securely

anchored at both the scale and dead connection point.