05/2021, JK
CALIBRATION PROCEDURE
The calibration mode should only be accessed by qualified personnel with proper equipment; otherwise
calibration integrity may be compromised. Read the following instructions carefully.
At least 2 points are required to make an adjustment. (2-Point calibration). Additional points can be taken
(3-Point or 4-Point calibration) to calibrate a large range of temperatures (e.g. 0°F to 300°F) or if you want
to match specific points in your range. You should include points at the bottom and top of the range. You
must have the proper equipment for every point of calibration.
Do not attempt to calibrate the instrument if the low battery indicator has been displayed since the new
calibration values may not be properly stored to memory.
Refer to API 7.2 or another recognized standard for routine calibration verification recommendations.
Calibration must not be performed in any environment considered to be hazardous.
Equipment needed:
Ice Bath or other low temperature bath with reference thermometer.
Warm to hot fluid bath between 20°C (approx 68°F), or higher up to 90°C (approx 194°F) with reference
thermometer. (see Note)*
Optional high temperature oil bath at about 150°C/300°F and reference thermometer.
*Note for limited calibration: If entire range capability of instrument is not required, the 2 point high adjustment
can be made at a temperature relatively close to the common temperature of the liquid measured and accuracy
will be maintained within the limited range. For example: If liquid product to be measured is commonly less than
38°C (approx. 100°F), then a “high point” calibration can be made near that temperature. Temperature accuracy
above this calibration point cannot be assured.
To calibrate proceed with the following steps:
1.
Enter calibration mode by going to
CALIBRAT
in the selection Menu. When this is selected, the user will be
prompted to enter a 3 digit password. Using the “up/down” buttons allows each digit to be adjusted. Once the
correct value is set, advance to the next digit by pressing the “select” button. After the 3
rd
digit is set press the
“select” button to enter Calibration mode. If an incorrect password is entered,
FAIL
will display and the unit
will return to temperature mode. Once in Calibration mode the ‘CAL’ icon on the display will blink.
The
calibration mode password is:
112
2.
Select
ADJUST
from the calibration menu and then select the desired number of calibration points. Pick
2PT CAL
,
3PT CAL
or
4PT CAL
using the select button.
NOTE: If the user is not ready to enter the calibration mode, the
EXIT
option can be chosen.
www.
.com
1.800.561.8187
