ThermoWorks P795 PRINTING DATALOGGER THERMOMETER - Manual (Page 5)

5.4.4 Calibration function / [CAL]
Despite high quality manufacturing techniques, each probe is slightly different from
specified standards. To eliminate inaccuracies caused by exchanging or ageing of
probes, the instrument offer easy calibration functions which guarantee that the
system accuracy is always as good as if the instrument was specifically calibrated to
the individual probes in our laboratory.
The instruments offer five different calibration options:
1) [OFF]:Standard characteristic curve (e.g. Pt100-resistance according EN 60751)
2) [OP1]: Calibration by code (2 x four digit code) is equivalent to a 2-point
calibration.
The code is marked clearly by a label on each standard probe.
3) [OP2]:Calibration by physical standard references (1-point, 2-point or 3-point
calibration)
4) [OP3]: Calibration according to Coefficients of EN60751(R0,ABC)
5) [OP4]: Smart EEprom probes with internal calibration(AUTO-Detection)
CAL = calibration
Push [ENTER/MENUE] to calibrate the instrument with sensor. Use the up and down
keys [] to select CAL. Push again [ENTER/MENUE]. On the left corner of the
display appears a small 1, which indicates the selected channel. To change the
channel use the up and down keys []. Push [ENTER/MENUE] to confirm
MENUE
Unit Lin2 CAL Chnl Log
Use the up and down keys [] to select the requested calibration option. Push
[ENTER/MENUE] to confirm.
CAL
oFF oP1 oP2 oP3 oP4
1.) Standard calibration according DIN IEC 60751 / [oFF
Use the up and down keys [] to select [oFF. Push [ENTER/MENUE] to confirm.
Push [ESC] to revert back to the measuring mode.
2-) Calibration by code / oP1
Use the up and down keys [] to select oP1. Push [ENTER/MENUE] to confirm.
On the bottom of the display appears a small 1, after this number a four-digit number
(Hex-Code/0..F) is displayed. For changing the number use the up key []. To step
to the next number use the down key []. If the requested number is complete then
push [ENTER/MENUE] to confirm. At the bottom of the display a very small 2
appears, after which a second four-digit number is displayed. For changing the
number please follow the manual as before. Push [ESC] to revert back to the
measuring mode.
Note: After confirming oP1 by pushing [ENTER/MENUE] the function oP1
(calibration by code) is activated, even though you leave the menu by pressing
[ESC].
Display-indication with active calibration code(OP1):
The CAL-segment and the small 1 indicates to the user that
oP1 is activated.