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EUTECH INSTRUMENTSααααlpha-pH800pH and ORP Controller/TransmitterOperating Instructions68X21681303/99

63.2 Back PanelThe back panel consists of two connectors. The first connector is the 17-wayPCB edge connector and the other is the 5-way connector.Con

70V/Pt100/RELAY ALNPE100mA(F)FUSE 250VACHOLDRELAY BPt1000PALS/NC-+NC NCNC

84 OVERVIEW4.1 Keypad and Display4.1.1 Keypad• Perform rapid 2-point calibration and view electrode status• Allows entry to Set up mode• Select indi

9Function GroupsThe main function and sub-function groups are organised in a matrix formatfor configuration and selection of parameters. The main func

105 MEASUREMENT5.1 Display in Measurement modeWhen the controller is initially powered on, it automatically enters into theMeasurement mode after the

116 CALIBRATIONDirect Calibration from the Measurement mode is possible via the CAL key.The Calibration procedure can also be accessed from the Advanc

12symmetrical mode, immerse the potential matching pin in the buffer.4) Press the ENTER key to start the calibration at pH 7 (or pH 6.86). Theelectro

136.2 ORP – mV CalibrationThis mode allows one-point calibration.1) Enter Calibration mode. While in Measurementmode, push the CAL key. Press the E

147 ADVANCED SET UP MODE7.1 Electrode Offset (OFS) sub-functionThis option is available only in the pH mode. An allowance of ±120mV isallowed to cor

157.2 Setting temperature (Set oC) sub-function7.2.1 Selecting automatic or manual temperature compensation1) Enter Advanced Set-up mode by pressin

PrefaceThank you for purchasing the αlpha-pH800 series pH/ORPcontroller/transmitter.This manual serves to explain the use of the αlpha-pH800 series pH

164) Press the ∆∆∆∆ or ∇∇∇∇ keys to scroll the lower display to match the correctvalue. The upper display will now show the offset value. You can off

175) Press the ∆∆∆∆ or ∇∇∇∇ keys to adjust the calibration temperature value,between –9.9 and 125oC.6) Press the ENTER key to confirm.7) Continue w

187.3 Control Relay A/Control Relay B (SP1/SP2) sub-functionThe SP1 option sets the operating parameters for Relay A; the SP2 optionsets the operatin

191) Follow directions in 7.3.1 to enter Control Relay mode.2) Press the ENTER key until the upper display shows Lo or Hi and thelower display shows

205) Proceed to 7.3.5 step 3, or return to Measurement mode by pressingthe ∆∆∆∆ and ∇∇∇∇ keys simultaneously (escape).NOTE: Please refer to Appendix

213) Press the ∆∆∆∆ or ∇∇∇∇ keys to enter off-delay time for Set point 1 (Set point2). The controller will delay activation for the number of seconds

227.4 Configuration (ConF) sub-functionThe options available in this sub-function allows the controller to beconfigured as a pH or ORP controller.7.

237.4.3 Reverting to factory default settingsUse this parameter to reset all settings to factory default. Changing from “no”to “YES” and pressing the

248 TECHNICAL SPECIFICATIONSpH Range -2.00 to 16.00 pH Resolution 0.01 pH Relative Accuracy± 0.01 pHmV Range - 1000 to +1000 mV Resolut

259 ACCESSORIESProduct Description Code no.Ryton-body pH combination electrode without ATC,without potential matching pinEC-ARTSO05BRyton-body pH comb

TABLE OF CONTENTS1 INTRODUCTION... 11.1 Description of

2610.3 Return of GoodsAuthorisation must be obtained from Eutech Instruments’Customer Service Dept. to issue a RGA (Return of GoodsAuthorisation) numb

2711 APPENDICES11.1 Appendix 1Jumper Positions - Internal to the controllerJP 1 Selects the input voltage 220 VAC.JP 2 Selects the input voltage 110 V

2811.2 Appendix 2The following table shows the various pH values at differenttemperature of the solution during calibration.Temperature(oC)pH 1.68(oxa

2911.3 Appendix 3Simple Explanation on the Function of HysteresisThe controller relay activates when the set-point is reached. In thereverse direction

CALIBRATION RECORDCalibration Date Electrode Slope Electrode Offset

11 INTRODUCTION1.1 Description of UnitThank you for purchasing Eutech’s ¼ DIN alpha-800 series pH/ORPprocess controllers. This unit is used for me

21.2 ApplicationsUse this controller in panel mounted enclosures for applications such aswater treatment and monitoring, galvanic-decontamination, ch

32 ASSEMBLY AND INSTALLATIONS2.1 Measurement and Control SystemA typical measurement system consists of:• a pH/ORP process controller• a pH/ORP com

43 ELECTRICAL CONNECTIONS3.1 Connection DiagramSignal OutputHold InputRelay BRelay APower MainspHmA-+PE/SPEAC:NL12543678 9101112 131415171516* ) indic

5Symmetrical high-impedanceconnectionsAsymmetrical connectionsMeasuring CablepH CombinationElectrodeTemp.pHBNC0/PAPENLS22211232019 18PotentialMatching