4-5
CHAPTER 4 TESTING
Adjustment for Monoblock used in Precision Top Loader Balances (210g to 8100g)
This adjustment requires that the balance be partially disassembled to gain access to the Load Cell for adjustments. Refer
to Figures 5-1 and 5-3 in Chapter 5 for location of components called out in this procedure.
See Figure 5-1 for steps 1 through 5.
1.With the balance turned OFF and unplugged, remove the Pan (1).
2.If applicable, remove Wind Shield (2).
3.Remove the four Corner Spacers (5).
4. Remove two Screws (3) and Lockswitch Cover Seal (4).
5.Remove the Cover (6) from the Base.
See Figure 5-3 for remaining steps.
6.Remove the two Hex Screws (1) from the Subplatform (2).
7.Remove the Subplatform (2).
8.Remove two Screws (3) which secure Shield (4) in place.
9.Remove Shield (4) from the balance.
10.Remove two Screws (3) from the PC Board (11).
11.Remove the Hex Screws (14) and Washers (25) at the rear of the balance which secure the connectors on
the PC Board (11).
12. Disconnect the two cable connectors from the Load Cell going to J2 and J6 on the PC board as shown on
Figure 5-3.The Load Cell (9). Use cable extenders for all connectors. If internal calibration option is installed,
disconnect cable to J4.
1 3. Carefully lift the PC Board (11) from the Base (18) there is a small cable from the Sensor Board which should
also be disconnected from the PC Board (not shown on Figure 5-3). The Load Cell (9) should now be exposed
for adjustments.
4.2.2 Off-Center Load Test (Cont.)
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