Brookfield Bath, Model TC-101 - Manual (Page 5)

You are responsible for proper selection and use of the fluids.
Extreme range operation should be avoided.
FLUID DESCRIPTION SPECIFIC HEAT NORMAL EXTREME
@25°C RANGE RANGE
Water 1.00 10°C — 90°C 2°C — 100°C
Ethylene Glycol 30% / Water 70% .90 0°C — 95°C -15°C — 107°C
Ethylene Glycol 50% / Water 50% .82 -20°C — 100°C -30°C — 100°C
Ethylene Glycol 100% .62 50°C — 125°C 0°C — 125°C*
Dynalene-HC 50™ .76 -50°C — 60°C -62°C — 60°C
DC510 50 cs Silicone Oil .39 50°C — 150°C 5°C — 270°C*
DC550 125 cs Silicone Oil .42 100°C — 200°C 80°C — 315°C*
*WARNING - Fluid’s flashpoint temperature.
DC fluids are manufactured by Dow Corning. Dynalene HC is a registered TM of Advanced Fluid Technologies, Inc.
DO NOT use the following fluids:
1. Automotive antifreeze with additives*
2. Hard tap water*
3. Deionized water with a specific resistance > 1 meg ohm
4. Any flammable fluids
5. Concentrations of acid or bases
6. Solutions with halides: chlorides, fluorides, bromides, iodides or sulfur
7. Bleach (Sodium Hypochlorite)
8. Solutions with chromates or chromium salts
* At temperatures above 40°C, additives or mineral deposits can adhere to the heater. If allowed to build up, the heater may
overheat and fail. Higher temperatures and higher concentrations of additives will cause a faster deposit build up. If buildup
occurs see Section 5.1 Maintenance - Heater.
WARNING: Do not use a flammable liquid as a fire hazard may result.
APPLICATION NOTES
At fluid's low temperature extreme:
1. Presence of ice or slush will adversely affect temperature stability.
2. Viscosity above 10 centistokes will adversely affect temperature uniformity.
3. High fluid viscosity and high speed pumping will generate heat in the fluid.
At fluid’s temperature above ambient without using refrigeration:
1. Without refrigeration and within 15°C of room temperature the viscosity should be 10 centistokes or less to
avoid friction heating of the fluid. Encourage heat loss by uncovering the fluid and lowering pump speed.
At fluid’s high temperature extreme:
1. Heat loss from vapor will cause poor temperature stability.
2. A fume hood may be required to prevent the buildup of vapors inside the room.
3. Use a cover and/or floating hollow balls to help prevent heat and vapor loss.
4. Fluid lost from vapor will have to be frequently replenished.
6