Brookfield R/S CPS Rheometer - Manual (Page 17)

Brookfield Engineering Labs., Inc. Page 17 Manual No. M08-218-B0212
Fig. 6: Setting the gap on the R/S-CPS+ Rheometer
Set the micrometer ring (Nonius) to ZERO (scale division 0.01 corresponds to 10 μm). The
micrometer ring (Nonius) bottom line has to be aligned with the ZERO level marking. Looking
down onto the micrometer ring (Nonius) from the top, turn it counter-clockwise to lower the
head and reduce the gap. Turning the micrometer ring (Nonius) clockwise will raise the head
and increase the gap.
Lower the measuring head to the ZERO position to compress the unlocked measuring element
slightly. Now, tighten the hexagon socket screw at the measuring element by hand to lock the
measuring element in position.
The measuring clock (the position gauge to the left of the micrometer ring (Nonius)) can now be
set to ZERO for control purposes.
The measuring head is lifted and the micrometer ring (Nonius) is now set to the gap for the cone
(which is taken from the calibration sheet supplied with each cone). The gap is normally in the
range of 0.04 - 0.06 mm, however, other gaps can be selected when necessary. The standard dis-
tance in a plate/plate measuring system is 1 mm; operation is possible within the range of 0.3 - 3
mm depending on the properties of the measuring substance (particle size!).
The micrometer ring (Nonius) can be locked at the back with a hexagon socket screw M3.
The measuring cone/plate may only be adjusted, and the hexagon socket
screw may only be tightened, when the measuring temperature is set
precisely. Otherwise, the gap distance may be changed due to thermal
fluctuations, resulting in faulty measurement or in damage to the
measuring system.
Micrometer Ring
or
Nonius