Brookfield DV-II+ Programmable Viscometer - Manual (Page 15)

Brookfield Engineering Labs., Inc. Page 15 Manual No. M/97-164-F1 102
II.6 Out of Range
The DV-II + gives indications for out-of-range operation. When % (Torque) readings exceed 100%
(over-range), the display changes to that shown in Figure 15; EEEE will also appear in the display
for % and viscosity or shear stress:
cP EEEE 20.1C
10 RPM % EEEE
Figure 15
You must change either speed or spindle to correct this condition. If you operate at spindle speeds
that produce % (Torque) below 10.0 %, the DV-II+ flashes the % (Torque), cP (Viscosity), SS
(Shear Stress) and SR (Shear Rate) as shown in Figure 16:
cP 12.4 20.1C
10 RPM % 8.2
Figure 16
Negative % (Torque) will be displayed as shown in Figure 17:
cP ---- 20.1C
10 RPM % -2.2
Figure 17
Figure 18 is an example of the printed output of each of the above conditions.
Figure 18
Normal Operation:
RPM=50 M=RV S=29 %=51.4 cP=10280 D/CM2=1285 1/SEC=12.3 T=20.1C Z00:30
Over-Range Operation (>100% torque) (see Fig. 15):
RPM=50 M=RV S=29 %=EEEE cP=EEEE D/CM2=EEEE 1/SEC=12.3 T=20.1C Z00:30
Under-Range Operation (<10% torque) (see Fig. 16):
?RPM=50 M=RV S=29 %=5.2 cP=1040 D/CM2=130 1/SEC=12.3 T=20.1C Z00:30
Negative Torque Operation (see Fig. 17):
RPM=50 M=RV S=29 %=-0.1 cP=---- D/CM2=---- 1/SEC=12.3 T=20.1C Z00:30
M = Torque Range T = Temperature Z = Time