ABB UAD149 programmable control module
• The foundation for the load cell must be made as stable as possible. A sturdy construction
reduces the vibration energy of the measuring roll and bearing arrangement.
• The surfaces closest to the load cell, and other surfaces that affect the fit must be machined
fl@t to within 0.05 mm.
• There must not be any shims immediately above or below the load cell, as this may
adversely affect the fl@tness
Instead, shims may be placed between the adapter plate and
the foundation or between the adapter plate and the bearing housing.
• The screws that secure the load cell must be tightened with a torque wrench.
• The bearing arrangement for the measuring roll must be designed to allow axial expansion of
the roll with changes in temperature.
• Any drive to the roll must be applied in such a way that interfering forces from the drive are
kept to a minimum.
• The measuring roll must be dynamically balanced.
• The mounting surfaces of the load cells must be on the same height and parallel with the
measuring roll.
• In a corrosive environment, galvanic corrosion may occur between the load cell,
galvanized screws and adapter plates. This makes it necessary to use stainless steel screws
and adapter plates of stainless steel or equivalent. See adapter plates in A Drawings.
3.2 Unpacking
When the equipment arrives, check against the delivery document. Inform ABB of any complaint,
so that errors can be corrected immediately and delays avoided.

Preparations
Prepare the installation in good time by checking that the necessary documents and material are
available, as follows:
• Installation drawings and this manual.
• Standard tools, torque wrench and instruments.
• Rust protection, if additional protection is to be given to machined surfaces. Choose TECTYL 511 (Valvoline) or FERRYL (104), for example.
• Load cells, adapter plates, bearing housings, etc.
• Screws as listed in Table 2. page 20 to secure the load cell, and other screws
for bearing housing, etc.
3.4 Adapter Plates
The adapter plates for all load cell types in the PFTL 101 family must be machined and have a
fl@tness deviation of maximum 0.05 mm, required surface finish should be Ra 3,2.
For PFTL 101A the thickness of the adapter plates should be minimum 30 mm, and for PFTL 101B
35 mm, see Figure 15. Installation of Adapter Plates and Alignment of Load Cells page 21
Information
When installing PFTL 101AER and PFTL 101BER adapter plates of austenitic steel must be used,
preferably acid resistant or stainless steel.
3.5 Mounting
The instructions below apply to a typical mounting arrangement. Variations are allowed, provided
that the requirements of 3.1 General are complied with.
If it is necessary to use tubular dowel pins to secure the position of the load cell,
see instructions in Figure 14. Typical Installation page 21.
1. Clean the foundation and other mounting surfaces.
2. Fit the lower adapter plate to the load cell. Tighten the screws to the torque stated in Table 2.
page 20.
3. Fit the load cell and the lower adapter plate to the foundation, but do not fully tighten the
screws.
4. Fit the upper adapter plate to the load cell. Tighten the screws to the torque stated in Table 2.
page 20.
5. Fit the bearing housing and the roll to the upper adapter plate, but do not fully tighten the