Instruction Manual
α
lpha-pH 550
Eutech Instruments
23
5.3 Temperature Settings
Automatic Temperature Compensation (ATC):
The pH values other than pH 7.00 are affected by temperature. Use ATC feature of
the pH Monitor to compensate for pH changes when the temperature of the sample
or process liquid fluctuates. Connect a separate temperature probe (Pt100/pt1000) to
the pH Monitor if an integrated pH/Temperature probe is not available.
Manual Temperature Compensation (MTC):
Set the pH Monitor to MTC (disable ATC) when the temperature of sample or process
liquid is constant and a temperature probe is not available. If you disable ATC, the pH
Monitor allows you to set your
process temperature
(
P.ºC)
and
calibration
temperature
(
C.ºC
). This allows calibration at a different temperature other than the
process temperature. Example: Setting calibration temperature of 25°C lets you
calibrate using standard solutions at 25°C, even if your process temperature is
different from 25°C.
ENT
1
SETUP
2
SETUP
°C
2
ENT
ENT
3
SETUP
°C
SETUP
°C
3
ENT
SETUP
°C
ATC
SETUP
°C
ATC
5
4
SETUP
ENT
6
SETUP
7
ENT
ENT
ENT
°F
SETUP
From pH or ORP measurement mode
press ENT key
to enter setup
mode as described in section
1
1
5.1. The LCD shows the first screen of
setup mode (
OFS
).
Press
▲
or
▼
key
to
select Temperature settings
screen
(SET ºCF).
Press ENT key
to access temperature settings (
SET ºCF
).
Selecting unit of measurement for temperature:
The upper display
shows ‘
Unit
’ and the lower display shows the last configured unit of
measurement for temperature.
2
Press
▲
or
▼
key
to select the desired units for temperature (
ºC or ºF)
.
Press ENT key
to confirm your selection.
Enable/disable ATC:
The lower display shows ‘
AtC
’ and the upper
display shows the last configured ATC selection (‘
On
’ or ‘
OFF
’).
3
Press
▲
or
▼
key
to enable (
ATC
On
) or disable (
ATC OFF
) automatic
temperature compensation.
Press ENT key
to confirm your selection.