Chapter 3: Operation
Operation Manual: Evolution Series
method to the specified accuracy. Only qualified personnel should adjust the
unit's calibration.
Interim temperature checks can be made in two ways:
A. The calibration probe supplied with the Evolution unit can be compared
using the TempChek or any calibrated glass thermometer readable to
0.01ºC and accurate to ±0.02ºC. Each vessel temperature probe can then
be checked (and re-calibrated if needed) using the calibration probe.
B. Alternatively, each vessel probe can be checked and re-calibrated with
TempChek, or any calibrated thermometer.
The Evolution System will automatically detect whether a High-Temperature
Calibration or a Low-Temperature Calibration will be performed based on the
temperature of the probe. If the temperature of the probe is below 25°C and 15°C
below the last high-temperature calibration a Lo-Cal will be performed. If the
temperature of the probe is above 25.05°C and 15°C higher than the last low-
temperature calibration a Hi-Cal will be performed. Use 700-1000ml water in each
vessel. It is suggested to use cool water between 18º and 22º C to perform Low-
Temperature Calibration and warm water between 38º and 42º C to perform High-
Temperature Calibration. There must be a difference of at least 15° between the
Lo-Cal temperature and the Hi-Cal temperature in order for the calibration
procedure to work properly.
For accurate calibration use PADDLES. Basket stirring is not adequate for precise
calibration. Calibration settings are saved in non-volatile memory and are
retained after the unit is powered down.
Verify accuracy of low temperature calibration
(18-22º C) before performing High-Temperature
Calibration.
Heaters turn off automatically when the Calibration screen is accessed. The
reason is to stabilize vessel temperature during the calibration procedure by
preventing the high-powered heaters from raising temperatures rapidly.
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