4-7
CHAPTER 4 TESTING
Adjustment for Monoblock used in High Capacity Top Loader Balances (12000g to 32000g)
This adjustment requires that the balance be partially disassembled to gain access to the Load Cell for adjustments. Refer
to Figure 5-6 in Chapter 5 for location of components called out in this procedure.
1.With the balance turned OFF and unplugged, remove the Pan (1).
2.Remove the four Pan Mounts (2).
3.Remove the three Cover Housing Screws (3) and one Flat Head Screw (37) which secure Housing Cover
(4) to Base (19).
4.Remove the Housing Cover (4). The large monoblock is now visable.
Adjusting the Cornerload on High Capacity Top Loader Balances
The Monobloc measuring cell is not adjusted by means of the cornerload screws, but by removing material from its top.
This is achieved by a few strokes with a nibler file exerting slight pressure as you pull the file towards you.
CAUTION CAUTION
CAUTION CAUTION
CAUTION:
• Do not attempt to adjust if more than 5 counts out. If more than 5 counts, return to factory for repair.
• File only in positions shown in Figure 4-6.
• On completion of the adjustments, clean filing sites by removing residue with adhesive tape. See Figure 5-6 for
following steps.
1.With power removed, temporarily install the four Pan Mounts (2), and weighing Pan (1), level the balance, then
apply power.
2.Perform off center load test and determine error.
3.Remove Pan (1).
4.Determine associated filing position per Figure 4-8. Perform adjustment as required.
5.Repeat above steps until balance is within tolerance as per table 4-1.
6.Turn the balance OFF and remove power.
7.Remove the Pan (1) and Pan Mounts (2).
8.Install the Housing Cover (4) into place on the Base (19) and secure with the three Cover Housing Screws (3)
and one Flat head Screw (37).
9.Install the four Pan Mounts (2) onto the posts of the Overload Protection (18).
10.Replace the Pan (1).
4.2.2 Off-Center Load Test (Cont.)
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