22
4.Operating procedures
Data of deterioration of tank water quality (reference)
The quality of pure water in the tank will deteriorate if it is left as it is. The water quality is A3 (electric
conductance: 1
×
10
-4
S/m or lower) at the time of supplying to the tank, which will be A1 (5
×
10
-4
S/m
or lower) in three days. The reason pure water shall be used for the constant temperature and
humidity chamber is to prevent accumulation of stone of humidifying water, which means pure water
having quality of A1 (5
×
10
-4
S/m or lower
）
or higher may be used. If the water in the tank is not
used for one month, the A1 quality (5
×
10
-4
S/m or lower) may be maintained.
Use the data as a reference only since the same results will not be always obtained depending on
the specific cartridge or raw water quality.
Number of days (day)
S
p
e
c
ifi
c
r
e
s
is
ta
n
c
e
(
×
10
4
Ω・
m
)
※
Tap water of Kanagawa pref.
･･･
Electric conductivity150×10
-4
S/m
E
le
c
tri
c
c
on
du
c
ti
v
it
y
(
×
10
-4
S
/m
)
0
2
4
6
8
10
12
14
16
18
20
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
比抵抗値
電気伝導率
Specific resistance
Electric conductivity
