Apera Instruments EC20

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EC20!Pocket!Conductivity!Tester!Instruction!Manual!
1.!Battery!Installation!
Please!install!batteries!according!to!the!following!steps.!Please!note!polarity:!
!“+”!(anode)! is !upward;!“-”!(cathode)!is!d o w nw ard!
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2.!Keypad!Functions!
■Short!press-------!<!2!seconds!!
■Long!press--------!>!2!seconds!
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1.!Short!press!to!turn!on,!long!press!to!turn!off;!
2.!When!turned!off,!long!press!to!enter!setup;!
3.!In!mode!setting,!short!press!to!change!
parameter;!
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1.!When!turned!on,!long!press!to!enter!
calibration!mode.!
2.!In!calibration!mod e ,!sho rt !p ress !to !co n f irm !
calibration;!
3.!In!mode!setting,!short!press!to!confirm!
parameter!selection.!
Diagram!-!1!