J. PERFORMING FIELD CALIBRATION (Zeroing Sensors)
The Smart Probe App allows you to perform field calibration. This function enables a sys-
tem accuracy (SP341 and Probe) of +/- 1°F (0.5°C) accuracy in the range of 30°F to
120°F (0°C to 48°C).
Preparation for Field Calibration:
Fill a plastic or metal container with crushed ice and add clean water to a depth of at least
4 inches. Stir the ice and water for 2 to 3 minutes prior to performing calibration to
ensure the water is completely chilled. Make certain there is plenty of ice in the mixture
and always use clean water. Distilled water works well. The temperature of an ice bath is
approximately 32°F (0°F).
1. Connect a tempera-
ture probe to the
SP341.
2. Tap the list icon to
bring up the options
menu.
3. Select “Zeroing
Sensors” to bring
up the field calibra-
tion screen.
6. Insert the temper-
ature probe into
the ice water bath
and allow the tem-
perature reading
to stabilize at or
near 32°F (0°C).
Note:
The dis-
played tempera-
ture must be with-
in +5.4°F (+3°C)
of 32°F (0°C) for
field calibraton to
take effect.
7. Tap the Reset icon
to set the temper-
ature to 32°F
(0°C). Field cali-
bration is com-
plete.
8. Tap Close to
return to normal
operation.
4. Tap the + icon to
select the SP341 to
be field calibrated.
5. Tap the SP341 to be
field calibrated.
Note:
To return the SP3431 to factory default calibration tap the Default icon.
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