User Guide

12
5.3 Calibrating the Controller for Temperature
Measurement
5.3.1 The CAL °
°°
°C menu
1. Enter this menu by pressing
MODE key twice to the “SEt” display
if you are in measurement mode.
2. Press ENTER key. If the
password has been set earlier, key in
the password using the method
described in section 4.1. Press
ENTER once to confirm. After you
set the correct password, you see
the “CAL” and “COn” display blinks
alternatively. Press ▼ key once, the
display shows “CAL” “
o
C” blinking.
1. Press ENTER and the display
alternatively shows “Atc” and “On”
or “Atc” and “OFF”. Use ▲ and ▼
keys to choose between both ATC
ON and ATC OFF.
ATC ON : If a PT 100 is connected,
use ▲ and ▼ keys to adjust the
temperature offset of the PT 100 by ±
5 °C. Dip the probe into the sample
liquid. Make sure that the display is
set to ATC ON, press ENTER and
the display now shows the actual
temperature reading (blinking).
Use ▲ and ▼ keys to adjust the
reading to its actual temperature - as
measured by an external
thermometer. Once done, press
ENTER key and the display will flash
“CAL” “Con” alternatively.
SETUP
MODE
ENTE
R
SEt
SETUP
MODE
ENTE
R
CAL
SETUP
MODE
ENTE
R
o
C
SETUP
MODE
ENTE
R
A
tc
SETUP
MODE
ENTE
R
On
SETUP
MODE
ENTE
R
23.5