- 2 5 -
displays that no parametersshould be on Secondarydisplay.
5.5 Renewal of Set Value
Display theparameter whichyourenewwithSELkey.
①
Keep pushing SEL key for a secondorover.
②
Set value starts flashing , then renewal of value is ready with
key.
③
△▽
Renewthe values with
key.
④
△▽
Onepushcountsup/downstepby step. And keeppushing,countingup/down speeds up.
Push ENT key after setting your optional value.
⑤
Set Value flashes andshowsitisdefined.
Now , Setting is completed.
⑥
Maintenance
6.
6.1 Sensor maintenance
6.1.1 Maintenance schedule
Cleansensor to measure conductivity thatstabilize for longterm.
Increase the maintenance frequency in the case that garbage and oil are mixing into
measuredsolution. Refer to thefollowing.
Solution
typical maintenanceschedule
5
S
less or equa
deionized water and others
about onceayear
μ
／㎝
l (
)
10
S
approx.
distilled water andothers
about onceayear
μ
／㎝
(
)
200
S
approx.
tap water and others
about twicea year
μ
／㎝
(
)
200
1000
S
about onceamanth
〜
μ
／㎝
1000
S
and over
about onceaweek
μ
／㎝
