All Rights Reserved, Copyright © 2004, Yokogawa Electric Corporation.
IM 12D03D02-02E 1/2
3rd Edition : Apr. 2008
Model SC72 Personal Conductivity Meter Quick Manual
This manual briefly describes setup, measurement, and routine maintenance procedures for the Model
SC72 Personal Conductivity Meter. Before using this meter, read Instruction Manual (IM 12D03D02-01E).
Key switches
List of items in function mode
Display
(faint color display for flashing state)
Flashing state:
Lit up state:
1. Preparation for Measurement
(refer to IM
12D03D02-01E, Chapter 2)
(1) Install Battery
(When first purchased, when replacing batteries, or when
meter has not been used for an extended period of time.)
(2) Connect Sensor Cable (when not connected)
When connecting sensor cable, tighten by turning only
the silver locknut, do not turn cable or waterproof cover.
Display Character Table
POWER
Auto Power Off
HOLD
F/ENT
MEAS
DATA
F01.EPS
When meter is OFF, press for at
least 1 sec. to turn on power.
When meter is ON, press for
about 2 sec. to turn off the power.
Automatic Power OFF function
default: 20 min. inactivity.
Press to start
measurement mode.
If already in MEAS
mode, it switches the
display panel.
Change set value.
If pressed while in
MEAS mode, switches
to function mode. Also
used to enter set
value.
If you press this key during
measurement, mark is
displayed, and present measured
values are held. To cancel, press
or keys.
If pressed during measurement,
mark flashes.
Press key to store measured
values in memory.
To abort data storage and return to
MEAS mode, press or key
again while mark is flashing.
MEAS
MEAS
F/ENT
HOLD
DATA
Item
dAt
t.Co
rnG
C.C
CAL
dEL.A
dAtE
tIME
ALM
A.oFF
bZ.o
SC.U
tP.U
VEr
dFLG
Details
Display stored measurement value
Temperature compensation setting
Range selection
Cell constant setting
Calibration with standard solution
Delete all stored measuring data
Date setting
Time setting
Alarm time setting
Set Auto Power Off interval
Set buzzer ON/OFF
Set measurement unit
Set temperature unit
Version number display
Defragment storaged data
T01.EPS
F02.EPS
All display elements shown ON
Lit when setting
fixed ranges.
Lit when setting
temperature
compensation coefficient.
Lit or flash when
storing measured
values or displaying
stored data.
Lit when temporarily
holding measured values.
Lit when calibrating
with standard solution.
Lit when setting
cell constant.
Battery life indicator
Press with
your fingers
Gasket
Batteries
45
8
or more
(1) Loosen the screw holding the
battery box cover using a coin or
similar object.
(2) Remove the battery box cover, and
then install the batteries observing
polarity diagram inside.
(3) Make sure the gasket on the inside
rim of the battery box is free of
foreign material.
(4) Put the cover back on. Insert the
tabs on the top of the cover into the
slots at an angle of at least 45
8
and
lower the cover into position.
(5) Press the both ends of the cover
down with your fingers and tighten
the screw to fix the cover onto the
unit using a coin or similar object.
Note: Do not attempt to tighten further
when you feel resistance before the
cover is fastened in place. Loosen
the screw once and retighten.
F03.eps
9
8
7
6
5
4
3
2
1
0
Z
Y
X
W
V
U
T
S
R
Q
P
O
N
M
L
K
J
I
H
G
F
E
D
C
B
A
Alphabet
Display
Alphabet
Display
Display
Numerals
T02.EPS
* Alphanumerics are represented as follows on the LED
display.
(3) Set Date and Time (only when purchased or after
replacing batteries)
(4) Set Temperature Unit (only for
8
F)
(5) Set Cell Constant (refer to IM 12D03D02-01E,
Sec. 2.5)
(6) Set Temperature Compensation Coefficients
(refer to IM 12D03D02-01E, Sec. 2.6)
