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6109A/7109A
Operators Manual
78
Disposal
Whatever fluid is used, devise a proper disposal plan to ensure that the fluid is
discarded in a legal and environmentally friendly manner.
Silicone Fluids
A silicone fluid is usually the best choice for the Product. Silicone products are
available with a variety of temperature ranges and viscosities. As a general rule,
choose the fluid with the highest temperature range without exceeding
50 centistokes viscosity at the lowest temperature at which it will be used.
Figure 15 shows the temperature ranges of several types of silicone fluid
supplied by Fluke Calibration. Fluke model numbers identify the fluids. Nominal
viscosity at 25 °C is shown below the model number. The minimum temperature
is the point at which viscosity is about 50 centistokes when the fluid is new. The
maximum temperature is just below the flash point. The red line indicates the
oxidation point, above which the life of the fluid is reduced. At the top of the
range the fluid may emit heavy fumes. Recommended fluids are 5012 for the
7109A and 5014 for the 6109A.
-50
0
50
100
150
200
250
300
5017
(500 cst)
5014
(50 cst)
5013
(20 cst)
5012
(10 cst)
5010
(5 cst)
Temperature (°C)
Fluke Fluid Number
5014
(50 cst)
5012
(10 cst)
icu13.eps
Figure 15. Silicone Fluid Temperature Ranges
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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