WP
4
PotentiaMeter
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22
should show consistent temperature readings. At
this point, make any needed adjustment to the set-
point index number to reach your desired tempera-
ture.
You will be able to adjust the index number
between 40.5° and 15°C. If you press the - button
after you reach 15°, it will disable the temperature
control function until you raise the index number
again.
Setting Temperature Equilibration Time
In the upper left corner, before the words “Adjust
Setpoint” there is a number (default is 0). This value
can be one of three integers: 0, 1, or 2, and is
adjusted by pressing the upper left button. This
number sets the level of temperature equilibration
desired after the knob is turned to the READ posi-
tion and before the WP4 begins to make measure-
ments. A setting of 0 begins measurement
immediately (as long as sample is not above 4°C of
block temperature), 1 requires it to be within 1
degree, and 2 requires it to be within 1/2 of a
degree. Note that if it is set to 0, the WP4 will begin
taking readings when the temperature is within 4
degrees, but you will not get a final reading until
the temperature has stabilized enough for the
instrument to make an accurate final value.
Important tips with the WP4-T
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