5
4
1. Introduction
Thank you for selecting an OAKTON meter. This OAKTON portable meter
is a microprocessor-based instrument that measures pH, conductivity, TDS and
temperature! Your meter has many user-friendly features, all of which are accessible
through the membrane keypad.
Your meter includes a single-junction pH electrode, a combination conductivity/
temperature probe, and batteries. Please read this manual thoroughly before
operating your meter.
2. Display and Keypad Functions
Display
The LCD has a primary and secondary display.
• The primary display shows the measured pH or conductivity reading.
• The secondary display shows the temperature of the reading.
The display also shows error messages, keypad functions and program functions.
mS
ATC
READY
MEAS
CAL
HOLD
ERR
F
SETUP
ON
OFF
C
µ
S
K=
pH%
mV
pH
ppt
ppm
2.1
Primary display
Secondary display
3.
2.
21
20.
14.
17.
16.
15.
13.
1.
19.
18.
4.
6.
5.
11.
12.
7.
8.
pH/Conductivity/
°
C/
°
F Meter
pH/CON 300 Series
WATERPROOF
MODE
HOLD
ENTER
RANGE
ON
OFF
CAL
MEAS
▲
▼
SETUP
ATC
READY
MEAS
C
µ
S
1.
SETup mode indicator
2.
MEASurement mode
indicator
3.
CALibration indicator
4.
mV indicator
5.
% indicator
6.
pH measurement
indicator
7.
Millisiemens indicator
8.
Microsiemens indicator
9.
Parts per thousand
indicator
10.
Parts per million
indicator
11.
Temperature
indicators
12.
pH setup indicator
13.
Automatic
Temperature
Compensation
indicator
14.
ERRor indicator
15.
Low battery indicator
16.
Probe indicator
17.
Calibration indicator
18.
Cell constant indicator
19.
ON/OFF indicator
20.
HOLD indicator
21.
READY indicator
9.
10.
