ThermoWorks P795 PRINTING DATALOGGER THERMOMETER - Manual (Page 6)

3.) Calibration by physical standard references / oP2
Use the up and down keys [] to select oP2. Push [ENTER/MENUE] to confirm.
On the bottom of the display appears 1 P. For changing between a 1-Point 1 P, 2-
Point 2 P or 3-Point 3 P - calibration use the up and down keys [].
oP2
1 P 2 P 3 P
Example of a 1-Point calibration:
Push [ENTER/MENUE] to confirm. On the display appears CALC. After the
displayed measuring value is stabile push [ENTER/MENUE]. On the first display line
you can see the “frozen” measurement value. On the second line as a default you
can see -100.000. Now you have to Enter (instead of -100.000) the correct
measurement value from your reference:
By using the up key[] you are able to move the decimal point to setup the number
of decimal places. Push [ENTER/MENUE] to confirm.
Now the algebraic sign is blinking„-„. Use the up key [] to toggle for positive or
negative number. Change the number using the up and down keys [].
Note:
Up key  is changing the blinking segment
Down key is jumping to the next segment
Push [ENTER/MENUE] to confirm, revert back to the measuring mode.
Important: A break of the physical calibration cannot be done by the [ESC]-button.
Display-indication with active calibration code (OP2):
The CAL-segment and the small 2 indicates to the user that
oP2 is activated.
4.) Calibration according to Coefficients of EN60751 (R0,ABC)
By using Option 3 you are able to activate coefficients according to EN60751
(R0,A,B,C). The coefficients have to be calculated using special software on a PC (e.
g. P7_CALC). Before you are able to activate this option you have to transmit the
coefficients from the PC to the instrument. Therefore you have to use the Software
P7_CALC, too.
Use the up and down keys [] to select oP3. Push [ENTER/MENUE] to confirm.
Now the calibration option 3 is activated!
Push [ESC] to revert back to the measuring mode.
Note: After confirming oP3 by pushing [ENTER/MENUE] the function oP3
(calibration by code) is activated, even though you leave the menu by pressing
[ESC].
Display-indication with active calibration code (OP3):
The CAL-segment and the small 3 indicates to the user that
oP3 is activated.
5) Smart EEprom-probes with internal calibration (AUTO-Detection)/ oP4
The Option 4 will be activated automatically by using Smart EEprom probes. This
option will be activated by switching on the instrument when the Smart EEprom
probe has been connected to the instrument.