Chapter 7: Quick-Pit Installation (In-Floor)
Reinstall Platform
(11/96)
7 Quick-Pit Installation (In-Floor)
The Quick-Pit frame provides a means of placing a standard above-floor
2158, 2162,and 2162 Vertex floor scale in a pit for flush mount
applications. The Quick-Pit frame can be installed in the floor prior to
receiving your Vertex scale assembly. When the Vertex assembly is
received, simply lower the standard frame into the Quick-Pit and anchor.
Insert the Vertex
weighing platform to complete the installation.
Prior to pit construction, contact Mettler Toledo or an authorized Mettler
Toledo Distributor to obtain the latest applicable pit construction
drawings.
The Quick-Pit frame requires an opening that allows a 3" gap around the
perimeter of the frame. The pit depth will vary from 8" (1k-5k capacity)
to 10" (10k capacity). Remove the existing floor to meet the dimensional
requirements or your specific frame.
Position the instrument cable conduit. Use a high grade steel conduit
(3/4" EMT thin wall conduit minimum, supplied by others). Do not
secure until the frame is in the correct position.
Reverse the shipping brackets on the Quick-Pit frame so they extend
outward from the frame. Remove the Vertex scale assembly at this time
(if assembly was shipped within the Quick-Pit frame). See Figure 7-a for
details.
Place the frame into the pit, with the shipping brackets resting on the
existing floor (see Figure 7-a).
Center the frame in the pit opening. Check the frame for a level
condition. If the frame is not level, shim between the shipping brackets
and existing floor as required.
Secure the instrument cable conduit to the frame.
Mask-off the four corner plates and the top flange of the frame to prevent
concrete from adhering to these surfaces.
Pour concrete around perimeter of frame. Work the concrete until it is
level with the top frame flange and ensure the underside of all corner
base plates are completely covered. Slope the floor at least 1/2" per foot
to a suitable drain at the center of the pit.
USE A MINIMUM OF 3000 PSI STRENGTH CONCRETE AT 28
DAYS WITH 5 TO 7% AIR ENTRAINMENT
Once the concrete has properly cured, the standard Vertex frame can be
mounted within the Quick-Pit frame. Lower the standard frame into the
Quick-Pit frame, center it, then locate the eight anchor holes in the
corners. Mettler Toledo supplies eight 1/2"-13 UNC x 1-1/2" long (2”
long for 10k cap) flat head socket cap screws with each Vertex for
securing the frame. The 1/2" anchors are to be supplied by others or can
be purchased from Mettler Toledo. Using the frame as a guide, drill
anchor holes to a diameter and depth per the suppliers instructions.
Install the anchors into the concrete then secure the frame using the eight
flat head screws provided (see Figure 7-b).
Install the Vertex platform and have the scale calibrated by an authorized
Mettler Toledo Service Technician.
Note: The 10k capacity Vertex
uses a 5/8”
spacer between the Quick-Pit frame and
the Standard frame.
Contact Mettler Toledo for latest pit
construction drawings.
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