Fluid Characteristics Charts - Fluke 7102 User Manual

high electrical resistivity. Silicone oils are safe and non-toxic but are expensive.

Fluid Characteristics Charts

Table 3 and Figure 5
These charts are a visual and numerical representation of most of the physical qualities that are
important to remember when you select a fluid. The list is not all inclusive. There are other useful fluids
not shown in this list.
The charts include information on a variety of fluids which are often used as heat transfer fluid in baths.
Because of the temperature range, some fluids may not be useful with your bath.
Fluid Lower
Upper
(# = Fluke Tempera-
Temperature
Calibration ture Limit
Limit *
Part No.) *
-90 °C (v)
Halocarbon
70 °C (e)
0.8 #5019 **
-96 °C (fr) 60 °C (b)
Methanol
Water 0 °C (fr) 95 °C (b)
Ethylene
Glycol-50 % -35 °C (fr) 110 °C (b)
#5020
Mineral Oil 40 °C (v) 190 °C (fl)
Dow Corning
-40 °C (v)
133 °C (fl, cc)
200.05
**
Silicone Oil
Dow Corning
-35 °C (v)
165 °C (fl, cc)
200.10
**
#5012
Dow Corning
7 °C (v) 230 °C (fl, cc)
200.20
#5013
Dow Corning
200.50 25 °C (v) 280 °C (fl, cc)
Silicone Oil
Dow Corning 232 °C (fl, cc)
70 °C (v)
550 #5016 300 °C (fl, oc)
Dow Corning
80 °C (v) 302 °C (fl, cc)
710 #5017
Dow Corning
66 °C (v) 315 °C (fl, oc)
210-H
Silicone Oil
Heat
145 °C (fr) 530 °C
Transfer Salt
#5001
*Limiting Factors – b-boiling point, e-high evaporation, fl- flash point, fr- freeze point, v-viscosity – Flash point test, oc=open cup, cc=closed cup
**Very-low water solubility, ice will form as a slush from condensation below freezing.
help to select a heat exchange fluid media for your constant temperature bath.
Table 3. Table of Various Bath Fluids
Flash Viscosity
Point (centistokes)
5.7 @ -50 °C
0.8 @ 40 °C
NONE
0.5 @ 70 C
1.3 @ -35 °C
54 °C 0.66 @ 0 °C
0.45 @ 20 °C
1 @ 25 °C
NONE
0.4 @ 75 °C
7 @ 0 °C
NONE 2 @ 50 °C
0.7 @ 100 °C
15 @ 75 °C
190 °C
5 @ 25 °C
133 °C 5 @ 25 °C
10 @ 25 °C
165 °C
3 @ 135 °C
230 °C 20 @ 25 °C
280 °C 50 @ 25 °C
50 @ 70 °C
232 °C
10 @ 104 C
50 @ 80 °C
302 °C
10 @ 104 °C
50 @ 66 °C
315 °C
14 @ 204 °C
34 @ 150 °C
6.5 @ 300 °C
NONE
2.4 @ 500 °C
Specific Specific Heat
Gravity (cal/g/°C)
1.71 @ 40 °C
0.2
0.810 @ 0 °C
0.6
0.792 @ 20 °C
1.00 1.00
1.05 0.8 @ 0 °C
0.87 @ 25 °C 0.48 @ 25 °C
0.84 @ 75 °C 0.53 @ 75 °C
0.81 @ 125 °C 0.57 @ 125 °C
0.92 @ 25 °C
0.4
0.43 @ 40 °C
0.934 @ 25 °C 0.45 @ 100 °C
0.482 @ 200 °C
0.370 @ 40 °C
0.949 @ 25 °C 0.393 @ 100 °C
0.420 @ 200 °C
0.96 @ 25 °C 0.4
0.358 @ 40 °C
1.07 @ 25 °C 0.386 @ 100 °C
0.433 @ 200 °C
0.363 @ 40 °C
1.11 @ 25 °C 0.454 @ 100 °C
0.505 @ 200 °C
0.96 @ 25 °C 0.34 @ 100 °C
2.0 @ 150 °C
1.9 @ 300 °C
0.33
1.7 @ 500 °C
General Operation
Thermal Thermal
Conductivity Expansion
(cal/s/cm/°C) (cm/cm/°C)
0.0004 0.0011
0.0014 @
0.0005 @ 20 °C
25 °C
0.0002 @
0.0014
25 °C
0.001 -
0.0007 @ 50
0.00025 @ 25 °C
°C
0.00028 @ 25 °C
0.00105
0.00032 @ 25 °C
0.00108
0.00034 @ 25 °C
0.00107
0.00037 @ 25 °C 0.00104
0.00035 @ 25 °C 0.00075
0.00035 @ 25 °C 0.00077
0.0003 0.00095
0.0014 0.00041
Micro-Bath
Resistivity
(10 12 Ω-cm)
-
-
-
-
5 @ 25 °C
1000 @ 25 °C
10 @ 150 °C
1000 @ 25 °C
50 @ 150 °C
1000 @ 25 °C
50 @ 150 °C
100 @ 25 °C
1 @ 150 °C
100 @ 25 °C
1 @ 150 °C
100 @ 25 °C
1 @ 150 °C
100 @ 25 °C
1 @ 150 °C
1.7 Ω/cm 3
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