Huber MPC Minichiller 280, Manual

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Function description
Chapter 3 OPERATION MANUAL
V2.4.0en/09.08.21//1.30
Minichiller®
33
3 Function description
3.1 Function description of the temperature control unit
3.1.1 General functions
Circulating coolers are temperature control units, which are mainly used to dissipate process heat as
well as a cost effective alternative to cooling water (drinking water).
Due to powerful refrigeration engineering , short cooling rates can be achieved.
3.1.2 Other functions
A pump ensures good circulation of the thermal fluid. The LED display shows the current tempera-
ture. A new setpoint can be easily entered with a simple keyboard.
Optionally, you can add a digital interface (RS232) to your temperature control unit.
Temperature control units with a heater have an overtemperature protection to DIN EN 61010-2-
010 that is independent of the control circuit.
3.2 Information on the thermal fluids
Non-compliance with the safety data sheet for the thermal fluid to be used
INJURIES

Risk of injury to the eyes, skin, respiratory tract.

The safety data sheet for the thermal fluid to be used must be read prior to using it and its
content must be respected.

Observe the local regulations/work instructions.

Wear your personal protective equipment (e.g. temperature-resistant safety gloves, safety
goggles, safety footwear).

Danger of slipping because floor and work area are contaminated. Clean the workplace; ob-
serve the proper disposal of thermal fluid and aids. → Page 15, section »Proper disposal of re-
sources and consumables« .
Non-compliance with the compatibility between the thermal fluid and your temperature control unit
MATERIAL DAMAGE

Observe the classification of your temperature control unit according to DIN 12876.

Ensure the following materials are resistant with respect to the thermal fluid: Stainless steel
1.4301/ 1.4401 (V2A), copper, nickel, FKM, red bronze/brass, silver solder and plastic.

The maximum viscosity of the thermal fluid must not exceed 50 mm²/s at the lowest working
temperature!

The maximum density of the thermal fluid may not exceed 1 kg/dm³!
Designation Specification
Calcium carbonate per liter ≤ 1.5 mmol/l; corresponds to a water hardness of: ≤ 8.4 °dH (soft)
pH value between 6.0 and 8.5
Ultrapure water, distillates Add 0.1 g of sodium carbonate (Na
2
CO
3
) per liter
Not approved water
Distilled, deionized, demineralized, chloric, ferruginous, ammoniacal, con-
taminated or untreated river water or sea water
Volume circulated (at least) 3 l/min.
Thermal fluid: Water