OHAUS SCOUT, Руководство по обслуживанию

Страница: 35 / 51

4-15
CHAPTER 4 MAINTENANCE PROCEDURES
10. Assemble the balance by placing the Cover (2) on top of the Base (1) and
securing with the Cover screw (26) and Platform (5) using Screw (22).
11. Adjust the Up/Down Stop in accordance with paragraph 4.2.4.
12. Recalibrate the balance in accordance with paragraph 4.2.2.
13. Check the performance of the balance.
4.3.1.3 Transducer (8) Replacement - 200 Gram Models (Cont.)
4.3.1.4 Transducer (8) Replacement - 400 and 600 Gram Models
To replace the Transducer, proceed as follows:
Extreme care must be exercised so as not
to twist or deform the Transducer in any
way. Care should be exercised to not
scratch the Strain Gauges. Any damage to
the Transducer can render it inoperative.
1. Disassemble the balance in accordance with the procedures in paragraph
4.3.1.
2. Turn the balance over and loosen evenly the two Allen head captive Machine
Screws (22) (until free) which secure the Transducer (8).
3. Turn the balance over again. While facing the Transducer (8) remove the
Flexible Cable from the connector on the Printed Circuit Board (4) coming
from the Transducer (8).
4. Remove the Transducer (8) from the Mounting Plate (7). (The Mounting
Plate (7) is not field serviceable, do not try to remove this plate).
5. The Transducer (8) can be checked for the proper resistance which should
be 350 ohms on each leg of the bridge. Figure 4-10 illustrates the bridge and
Figure 4-11 illustrates the pin connections on the Transducer cable connec-
tor.
7. Install the new Transducer (8) Into position on the Mounting Plate (7).
8. Hold the Transducer (8) in place and turn the balance over and secure the
Transducer (8) with the two captive Screws (22) on the bottom of the balance.
CAUTION