Nova-Tech Digi–Sense 12-Channel Benchtop Scanning Thermometer - Manual (Page 51)

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How to do a field calibration
Factory calibration is stored in protected, non-volatile memory. Field
calibration is usually used to reduce probe errors over a specified range.
All field calibration values may be cleared (returning the instrument to
factory calibration) by pushing and holding CLEAR during the power up
display test.
An individual channel's field calibration may be cleared. When CALPT1
is displayed, press and hold CLEAR until CALPT1 CLR is displayed. This
also clears CALPT2 for this same channel. The CAL icon will also go off
for this channel.
There are no restrictions on what values may be entered for field
calibration.
Two calibration points may be entered for each channel. After CALPT1 is
entered the prompt for CALPT2 appears.
If only CALPT1 is entered the offset is affected.
If both CALPT1 and CALPT2 are entered, both slope and offset are
affected.
(See calibrating to the freezing/boiling points of water on page 53, for an
example.)
Front panel displays and controls continued
How to do a field calibration
NUM
°
F
CAL
5
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