PAC Alcor JFTOT II Manual page 90

2.5 After the JFTOT warm-up period is complete,
press ENTER to begin the calibration proce-
dure.
2.6 Insert the thermocouple into an ice bath. A
styrofoam cup filled with ice and water can be
used as an ice bath.
2.7 Press ENTER to measure the temperature of
the ice bath. The current temperature value of
1°C is used here as an example.
The temperature must be stable for at least 5
seconds to be detected by the JFTOT. De-
pending on the temperature detected, one of
three possible screens will appear.
2.7.1 DETECTED WITHIN 10°C OF
REFERENCE. If the detected tem-
perature is within 10°C of the refer-
ence (0°C ice bath), then you are
asked whether or not you want to keep
the value for determining correction.
Page 4
ENTER ENTER
EXIT
TOGGLE
STEP
PRINT PRINT
SCREEN SCREEN REFRESH
F1 F1 F2 F2 F3 F3 F4 F4 F5 F5 F6 F6 F7 F8
F9 F10
NOTE - failure to detect a good calibration
temperature could be caused by several factors:
• Operator is not following the procedures
correctly. Carefully read the instructions and
repeat the procedure.
• Ice bath contaminated. Replace ice and water
and repeat procedure.
• Thermocouple is defective. To replace see
ROUTINE MAINTENANCE in the Mainte-
nance Manual. Repeat AUTOCAL procedure.
• Computer is not adjusted properly. Contact
your authorized Alcor service representative.
Press any key except EXIT to keep
the temperature value. If you keep the
value, you will proceed with the Tin
Calibration, as outlined in 2.9. A
detected value of 1°C is used here as
an example.
2.7.2 DETECTED OUTSIDE 10°C OF
REFERENCE. If the detected tem-
perature is more than 10°C from the
reference, you cannot keep the value.
Check the ice bath, then repeat the ice
water calibration. A detected value of
25°C is used here as an example.
JFTOT II Calibration Manual Rev. C