Installation; General - Sartorius PR 6201 Installationshandbuch

Compression Load Cell PR 6201
4

Installation

4.1

General

Caution!
All electrical welding at the weighing facility must be finished before mounting the
load cells!
Directly when installing the load cell, bypass the load cell with the flexible copper
strap provided for this purpose (see figure), to prevent welding or lightning stroke
current from passing through the load cell and damaging it!
In case electrical welding is required subsequently in the neighborhood of the load
cell
•
disconnect the load cell cable from the measuring instrument,
•
bypass the load cell carefully with the above-mentioned flexible copper strap,
• take care that the grounding clamp of the welding set is fitted as closely as
possible to the welding joint in order to prevent a current flow through the load
cell.
10.5
Figure: Flexible copper strap
•
Do not lift the load cell on its cable.
•
Avoid shock stress (falling down, hard shocks)
•
The load cell must be installed so that its axis is vertical.
•
The load direction must be as close as possible to measuring axis of the load cell.
•
All contact points between load cell and load disc must be adequately greased.
Caution!
Changes of temperature >15 K/h may influence the measuring accuracy. To prevent
the load cells from direct heating or cooling effects (sun, wind, heat radiation) heat
protection shields or heat protection housings are to be installed if necessary.
To prevent force shunts, all connections of the weighing facility to the surrounding
construction (pipes, cables, bellows) must be coupled as flexibly as possible.
Even the best load cells must be handled carefully and installed correctly in order to
permanently guarantee good weighing results. It is therefore extremely important to
comply with the rules described here!
EN-14
400
Installation Manual
all dimensions in mm
Sartorius