
Model 415C & 415SGS Instruction Manual
D01669102
April 2019, Revision A
29
Figure 6-10 Software Screenshot
This programming screen allows a segmented schedule to be programmed using
selected timing intervals and motor configurations.
Select Motor Speed = Bc to run the instrument in normal consistency mode at 150
rpm. Select Motor Speed = GEL to run the instrument in gel strength testing mode.
Select Motor Speed = STOP for replicating a hesitation stoppage. Select the empty
box under Run Time and enter the number of minutes using the touch pad on the
right. The repeat button is used to repeat the segments that have been programmed
for 999 minutes. At least two segments must be programmed to function correctly.
A preview of the schedule will be shown for approval as shown. Here the first
segment was started in Bc mode for 45 minutes, then STOP mode for 20 minutes
and then GEL mode for the remainder of the time which is typically programmed
as 999 minutes.
Typically an SGS test is programmed per API standard which is at the end of the
slurry placement simulation (thickening time test, Bc mode). The rotational speed
is instantaneously changed and the the circulation temperature and pressure are
maintained. This instrument uses a paddle which does conform to the required API
dimensions for determining thickening time. This means that during Bc mode the
indicated consistency is the actual reading.