Brookfield R/S CPS Rheometer - Manual (Page 56)

Brookfield Engineering Labs., Inc. Page 56 Manual No. M08-218-B0212
11. Manually turn the outside ring of the dial indicator so that the needle is on zero.
Note: Each division on the dial indicator corresponds to 0.01 mm (or 10μm).
12. Move the rheometer head up and down to confirm that the dial indicator needle remains
at zero when the rheometer head is in the down (measuring) position.
13. When the following three conditions are met: (1) rheometer head down, (2) micrometer
ring set to zero and (3) the dial indicator needle reading zero - tighten the hexagonal nut
on the spindle shaft.
14. Raise and lower the rheometer head, to confirm the dial indicator needle reads zero when
the rheometer head is in the down (measuring) position.
15. Obtain the spindle truncation from the spindle data sheet that came with the cone spindle.
16. Raise the rheometer head.
17. Turn the micrometer ring counter-clockwise to the truncation point from the spindle data
sheet.
18. Lower the rheometer head.
Note: The dial indicator needle will provide visual confirmation of a proper gap setting.
For example, a gap setting of 0.05mm will produce a dial indicator reading of 45. A gap
setting of 0.04mm will produce a dial indicator reading of 46. A gap setting of 0.06mm
will produce a dial indicator reading of 44.
19. Raise and lower the rheometer head to confirm the dial indicator reading remains consis-
tent.
1. With the spindle attached and the gap setting confirmed, raise the rheometer head (handle
forward).
2. Using a non-metal spatula, place the viscosity standard onto the bottom plate of the
rheometer directly below the spindle.
Measuring System (Spindle) RC3-50-1 RC3-50-2 RC3-75-1 RC3-75-2
Approximate Fluid Volume (mL) 1 2 2.5 5
Lower the rheometer head onto the viscosity standard so the dial indicator needle reads
the proper gap setting for that spindle.
3. There should be viscosity standard visible around the entire edge of the spindle.
4. Trim excess viscosity standard from the edge using a non-metal spatula:
Under Fill Ideal Fill Over Fill
5. Wait fifteen minutes or more to allow the sample to come to temperature.
B.4 Loading the Viscosity Standard