Torrey Pines Scientific, Inc.
10
IX. TEMPERATURE CALIBRATION
The temperature calibration set into the units is stable and will hold without drifting.
However, our standards for temperature measurement may not be the same as the
users. Therefore, the RIC40 & RIC40XR are designed to be calibrated in the field by
the user. Calibration instructions are provided in Programming Manual included at the
end of this document.
Note: The calibration is two-point for optimum accuracy. The unit is calibrated at
the factory at 5.0
°
C and 70.0
°
C.
To calibrate the units at a particular temperature, set the unit to go to that temperature.
Give the unit time to equilibrate, usually 20 minutes. Now measure the plate
temperature (or the block or the samples to be controlled) using an electronic
thermometer with a good surface temperature probe (a good immersion probe if
calibrating a solution in a sample container).
*NOTE: PLATE SURFACE MEASUREMENTS ARE DIFFICULT TEMPERATURE
MEASUREMENTS TO MAKE ACCURATELY. Use temperature probes specifically
designed for surface temperature measurement and a digital meter that can accurately
measure to 0.1C. Ensure that the unit and the measurement device have had sufficient
time to stabilize at the new calibration temperature prior to entering in Measured
Temperature Value. If the temperatures are not stable when the measured temperature
value is entered, significant display and unit performance errors may result. Check with the
factory if help is needed. Also, a calibration kit is available.
