Brookfield Engineering Laboratories, Inc. Page 14 Manual No. M/92-021-N0902
CGS SI
Viscosity cP mPa
.
s
DV-I+ Viscometers without this function can be updated. Contact Brookfield or your local
Brookfield dealer for this service.
II.6 Temperature Display in °F or °C Selection
Pressing and holding the DOWN ARROW key during power on will enable the temperature display
to be read in either degrees Fahrenheit or degrees Centigrade. To change the units format:
1. Turn the power OFF.
2. Press and hold the DOWN ARROW key and turn power ON.
The DV-I+ will retain the unit selection when the viscometer is turned OFF.
The following screen depicts the changes to the default screen when displaying temperature in
the Fahrenheit scale and viscosity display in SI units:
mPas123.4 70.1°F
10 RPM % 89.7
Figure II-11
II.7 Out of Range
Brookfield recommends taking viscosity readings between 10% and 100% of scale. The DV-I+
gives indications for out of specification or out-of-range operation. When % (Torque) readings
exceed 100.0 % (over-range), the display changes to that shown in Figure II-12:
cP EEEE S01
10 RPM % EEEE
Figure II-12
You must change either speed or spindle to correct this condition. If you operate at spindle
speeds that produce % (Torque) below 10.0 % (under-range), the DV-I+ displays both % (Torque)
and cP (Viscosity) preceded by a “?” as shown in Figure II-13:
cP? 78.0 S01
10RPM20 % ?7.8
Figure II-13
Negative % (Torque) will be displayed as shown in Figure II-14:
cP ---- S01
10RPM20 % -0.2
Figure II-14
Viscosity values will be displayed as “- - - -” when the % (Torque) is below zero.
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