User Guide
76
• ON key, to switch the instrument on
• OFF key, to switch the instrument off
• CAL key, to enter or exit the calibra-
tion mode
• CON key, to confirm calibration data
• ENTER Key, to confirm/enter the nu-
meric data entry
• 0 to 9 keys, numeric and decimal keys
for numeric data input
• Clear Key, to clear the numeric data
entry
If the temperature
probe is discon-
nected during operation, the decimal point
will start blinking.
It will blink also if
the temperature
range is exceeded.
This LCD also displays the program # during
programming.
3. Calibration Procedure
Briefly describes calibration
procedure
4. Keyboard
• Cond key, to select conductivity mea-
surement mode
• Fert. key, to select fertilizer measure-
ment mode and to select Fertilizer #1
or #2 ("F1" or "F2")
• NaCl key, to select NaCl measure-
ment mode
• T.D.S. key, to select total dissolved
solids measurement mode
• FTR key, to select the TDS factor for
TDS measurements (see page 45)
•°C key, to display temperature in the
Celsius scale
•°F key, to display temperature in the
Fahrenheit scale
• ATM/MTC key, to select automatic or
manual temperature compensation
• %T.C. key, to select the temperature
coefficient for conductivity measurements
or to select a different conductivity buffer
during calibration (see page 21)
• PGM key, used in programming
Secondary Display
Primary Display
°C
F1
F2
LO BAT
SAMPLE
HOLD
CONDUCTIVITY
TDS
FERTILIZER NaCl
CON
CAL
BUF
%TC
S
m
µ
ppm
%
gm
HI
LO
Large display for Conductivity, Fertilizer, NaCl
and TDS
TEMP. display for temperature in °C or °F
and program #
LIQUID CRYSTAL DISPLAYS










