Grant Instruments LTC4 - Manual (Page 29)

LTC4 31115 V1
Operating Manual Page 28
www.grantinstruments.com
Calibration points must be a minimum of 5˚C apart and there must be at least 20˚C
between the highest and lowest points. Any points added that do not match these criteria
will not be accepted by the unit.
Once set, calibration points can be changed or deleted but a minimum of 2 points must
remain.
Prior to calibration, ensure the probe type to be calibrated is selected, (internal or
external); the bath is set to the desired temperature and has been stable at the
temperature for at least 5 minutes.
1. Press the F and S buttons simultaneously for 3
seconds.
The calibrate probe menu displays the factory
defined calibration points and the current
temperature of the bath in the top right corner of
the screen.
2. Rotate the dial to highlight add point, press S to
select.
The calibrate point menu is displayed. If an
external probe has been selected the external
probe icon will be displayed in the top left corner.
Otherwise the settings icon will be displayed when
calibrating the internal probe.
3. Rotate the dial to highlight measured
temperature. Press S to select
4. Rotate the dial until the temperature being shown
on the calibrated thermometer is displayed on
screen. Press S to save the value.
5. Rotate the dial to highlight save, press S to select.
The display returns to the calibrate probe screen.
6. Press F to return to the home screen
Further calibration points can be added by
repeating steps 2 to 5.
Calibration points can be deleted by selecting
delete in the calibrate point screen.

.

°c
Measured Temperature
Calibrate Point
°c

.

Save
Delete

.
 °c
Point 19.86 c
Calibrate Probe
Point 70.04 c
Add Point
Restore Factory