Tochange the set-point memory press “UP” or “DOWN”.
3. -10.0 New set-point memory 3, –10.0°C
Press “SET” to accept the newselection and access the set-point value.
SAccept selected set-point memory
8.3.2 Set-point Value
The set-point valuemay be adjusted after selecting the set-point memory an d
pressing “SET”. The set-pointvalue is displayed with the units, C or F, at the
left.
C -10.00 Set-point 3 value in °C
If the set-pointvalue need not be changed then press “EXIT” to resume dis-
playing thewell temperature. Press “UP” or “DOWN” to adjust the set-point
value.
C -12.00 New set-point value
When the desired set-point valueis reached press “SET” to accept the new
valueand access the temperature scale units selection. If “EXIT” is pressed in-
stead then anychanges made to the set-point will be ignored.
SAccept new set-point value
8.3.3 TemperatureScale Units
The temperaturescale units of the controller maybe set by the user to degrees
Celsius (°C) or Fahrenheit (°F). The units are used in displaying the well tem-
perature, set-point,and proportional band.
Press “SET” afteradjusting the set-point value to change display units.
Un= C Scale units currently selected
Press “UP” or “DOWN”to change the units.
Un= F New units selected
8.4 Scan
The scan ratecan be set and enabled so that when the set-point is changed the
dry-wellwill heat or cool at a specified rate (degrees per minute) until it
26 HartScientific
8Controller Operation