Mastercool 52246 COMPACT SUBCOOL_SUPERHEAT CALCULATOR - Manual (Page 4)

4 www.mastercool.com
9. Click on “GET DATA FROM MASTERCOOL WEBSITE”. Once
the data is downloaded, the “Download Data to Device”
square will turn green.
10. Click on “DOWNLOAD DATA TO DEVICE”. When the download
is done, (it only takes a fraction of a second) a window will pop
up telling you if the download was successful.
NOTE: If the refrigerant is already in the 52246, a pop up window
will tell you and the refrigerant data will not be downloaded.
11. After the refrigerant is downloaded, the 52246 will turn off.
If you would like to download another refrigerant, turn the 52246
back on and start from step 6 above.
If you are done loading refrigerants, reassemble the 52246, taking
care that the battery wires don’t get trapped between the case
halves.
After turning the unit on, press the down arrow to go to the last
refrigerant added.
THERMOCOUPLE CALIBRATION PROCEDURE
This procedure requires an accurate room temperature and an
accurate reference temperature for the thermocouple.
1. Turn the 52246 on. When the “R” starts blinking, press ENTER
and one of the arrow buttons.
2. Hold down the POWER button and the UP ARROW (▲) button
at the same time. The whole display will be shown.
3. Press ENTER twice until the number 2 is displayed and a
temperature reading.
4. This is the circuit board reference temperature. After you are sure
the temperatures have stabilized to room temperature, use the
arrows to adjust the temperature reading to match your room
temperature reference.
5. Press ENTER. The number 3 will be displayed and two
temperatures. One will be the previously adjusted room
temperature and the other will be the thermocouple reading. With
the thermocouple at a known reference temperature (place the
thermocouple [clamp] in a slush of crushed ice and water or
place the clamp on a thick copper tube with a calibrated
temperature gauge clamped to it as well.), Adjust the
temperature to match the reference temperature.
6. Press ENTER. The unit will shut-off.
7. The next time you press the POWER button, the unit will return
to normal operation.
USA: PH (973) 252-9119
BELGIUM: TEL. + 32 (0) 3 777 28 48
52246-INST