-4-
S W Setting contents ON OFF
No.
Ωat25℃ Ωat25℃1 Change-over the resistance of 6.8 500ｋ
measuring temperature
2 Change-over ALM1, relay control Upper limit Lower limit
（） (）action action Hi action Lo
3 Change-over ALM2, relay control Upper limit Lower limit
（） (）action action Hi action Lo
4 Change-over calibration mode Automatic Manual
calibration calibration
5 Change-over current output Hold output Continuous
Set 1 output（）
6 Change-over current output Hold just before Hold-Optional
（）Set 2
After change-over DIP.Switch, the function do not change. When power supply
becomes on from off, the function changes.
SW No.1①
For change-over measuring temperature resistance of the temperature compensative electrode.
ON
23456１
When GRT combination electrode ET-4503 is applid : Set ON Initial set valua at delivery to(
)you
ΩRemove the resistance of 6.8 k
()between T and T terminals
When GR combination electrode not specified with temperature compensation ET-2503()
is applid, connect the resistance of 6.8 k between T and T terminals .Ω ()
When GRT combination electrode EL-4503 i s applid : Set OFF
SW No.2 3②、
Setting of the control action of ALM 1, ALM 2.
ON
23456１
Iinitial Set ALM2 ALM1
Control output action ON
Control output action OFF
↑↑
（） ( ）pH 4.00 pH 10.00
ALM2 Set value ALM1 Set value
pH0 pH14→
>
SW No.4③
(). Setting the calibration way Automatic or Manual
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