EUTECH INSTRUMENTS ALPHA RES 1000 RESISTIVITY CONTROLLERTRANSMITTER Instruction Manual Page 1

Instruction Manual Alpha pH 2000 pH/ORP Controller Transmitter pH / mV / ºC meter 68X216830 | Rev 3 | Apr 2008

3 2 PRODUCT DESCRIPTION 2.1 Description of unit The Alpha pH 2000 is used for measuring pH or ORP and temperature values. The pH or ORP values can b

4 2.2 Measurement and Control System A typical measurement system consists of: • a pH/ORP process controller • a pH/ORP combination electrode wi

5 2.3 Unit Overview Wall mounting version Panel mounting version

6 2.3.1 Display overview The LC display shows two alpha-numerical fields for parameters and measured values as well as various mode and status indica

7 LED indicators Relay indicators If REL key is pressed the LED (A, B or W) indicates to which Relay (A, B or Wash) the displayed limit values r

8 SETUPHOLDSETUPHOLDSETUPHOLDSETUPHOLDSETUPHOLDSETUPHOLDcur.1SETUPHOL Dcur.2SETUPHOLDSETUPHOLDMEASPHOCSETUPHOLDTemperature settingssee section 6.3Rel

9 3 ASSEMBLY AND INSTALLATION 3.1 Mounting the unit Wall Mounting Version approx. 14 [.55]39 [1.54]Holes for wallmounting (2X)21.5 [.85]6 [.24]

10 Panel mounting version Transmitter housing for panel mounting: protection class IP 54 (front), IP 40 (housing) Flat gasket 1mm [.04](to be inse

11 3.2 Connection Diagram Caution: Ensure electrical mains are disconnected before proceeding. Connection for wall mounting version RELA

12 NOTE: Switch or circuit breaker shall included in the building installation. It shall be in close proximity to the equipment and within easy

13 Connection for panel mounting version 1. AC mains live wire 17. no connection 2. AC mains neutral wire 18. no connection 3. AC mains pro

14 4 NORMAL OPERATION 4.1 Measurement mode When the controller is powered on, the display first shows all segments briefly, then the transmitter au

15 5 CALIBRATION MODE You can access the Calibration mode directly from the Measurement mode by pressing the CAL key and entering the Calibration sec

16 5.2 pH Calibration This controller unit features one-point or two-point calibration with five preset buffer sets. Buffer values refer to 25 °C. T

17 7. Press the ENT key to return to the Measurement mode. Note: If you entered the Calibration mode from the Setup mode, the controller will return

18 5.4 ORP -% Calibration If controller is configured for ORP-% measuring you can perform a calibration at two points using a low concentration samp

19 5.5 View actual zero and slope ENTENTCALPHCALMEASPHOCatc 1. While in Measurement mode press the CAL key. The display will prompt you to enter a

20 MEASPHOCENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTENTERENTSETU PHOLDSETUPHOLDSETUPHOLDSETUPHOLDSETUP

21 6.2 Electrode Offset (OFS) sub-function The electrode offset sub-function is only available if the controller is configured for pH measuring. Use

22 6.3 Setting temperature (Set oC) sub-function SETU PHOLDSETUPHOLDOCSETUPHOLDOSETUPHOLDSETUPHOLDOCSETUPHOLDOCatcSETUPHOLDSETUPHOLDENTENTENTENTENTE

Preface This manual serves to explain the use of the Alpha pH 2000 series pH/ORP controller/transmitter. The manual functions in two ways, firstly as

23 6.4 Control Relay A/Control Relay B (SP1/SP2) sub-function The SP1 sub-function determines the operating parameters for Relay A; while SP2 define

24 the relay for the number of seconds (0 to 1999 seconds) you select. Press the ENT key to confirm your setting. Note: You can set a time delay

25 6.5 Controller (CNTR) sub-function The CNTR sub-function determines the controller’s parameters. 7 8991011125SETUPHOLDSETUPHOLDSETUPHOLDSETUPH

26 - OFF = controller off Use control Off to operate controller as a monitor only or to prevent relays from switching. - L.CT = limit value control

27 10. Setting the proportional range: press the ▲ or ▼ key to set the proportional range (setting range: 10 to 500%). Press the ENT key to confirm

28 Current Output 2 sub-function In this sub-function you set the current output range of the transmitter for temperature values. ENTENTENTENTENTEN

29 6.7 Wash relay (WASH) sub-function In this sub-function you set the parameters for the wash relay. 1223345ENTENT ENTENTENTENTENTSETUPHOLDSETUPH

30 6.8 Configuration (CNFG) sub-function In this sub-function you configure the controller to suit your requirements. SETUPHOLDSETUPHOLDSETUPHOLDS

31 – “PH SY” = pH measurement with symmetrical input – “PH ASY” = pH measurement with asymmetrical input – “ORP % SY” = ORP-% measurement with symm

32 8. Resetting the controller settings to factory defaults: The display shows “NO DEF”. Press the ▲ or ▼ key to select: – “NO DEF” = keeps old value

Safety Information The Alpha pH 2000 Controller/ Transmitter shall be installed and operated only in the manner specified in the Instruction manual.

33 7 RELAY MODES You can control devices connected to Relay A, Relay B or wash relay via the front panel of the transmitter. In Automatic mode, the c

34 7.2 Manual relay mode In manual relay mode, you can manually turn “on” and “off” the control devices connected to Relay A, Relay B or Wash relay.

35 8 TECHNICAL SPECIFICATIONS 8.1 General Specification Alpha pH 2000 Controller / Transmitter pH Range -2.00 to 16.00 pH Resolution & Accuracy

36 EMC Specifications Emitted Interference EN 61 326 Immunity to Interference EN 61 326 Environmental Conditions Ambient Temp. Operating Range -10

37 8.3 Specifications for panel mount version Electrical Data And Connections Signal output Two 0/4 to 20 mA outputs for pH/mv and temperature , ga

38 9 ACCESSORIES 9.1 Replacement Unit Product Description Thermo Scientific Order Code Alpha pH 2000 pH/ORP Controller/Transmitter, wall mount ve

39 10 GENERAL INFORMATION 10.1 Warranty This Controller transmitter is supplied with a one-year warranty against significant deviations in materia

40 10.4 Guidelines for Returning Unit for Repair Use the original packaging material if possible when shipping the unit for repair. Otherwise wrap i

41 11 APPENDICES 11.1 Appendix 1 – Unit fuse and jumper settings − Caution! Before opening the unit to replace the unit fuse or to set the jumpe

42 Panel mounting version J4 J4R44C55C59REG5REG1C69C66C68R49R48R46D10C73R45REG7C107C124C125R107C123U8R94C104C91C92C85C89C88R77C90Q11Q10C86C84R79C87

TABLE OF CONTENTS 1 INTRODUCTION ...

43 11.2 Appendix 2 – pH buffer values at various temperatures The following table shows the various pH values at different temperature of the solut

44 11.3 Appendix 3 –Simple explanation on the function of hysterisis 4 . 0 4.5 9.5 10.0 7.0R E L A Y O F F H Y S T E R E S I S B A N D ( D E F A U

45 11.4 Appendix 4 – General instructions concerning Controller Setting 11.4.1 Control characteristic of Controllers used as limit value switch MI

46 11.4.4 Controller signal of Pulse length Controllers tONtOFFPulse Length TRelayONOFFTime [s] The output relay of the pulse length controller is c

47 11.4.5 Controller signal of Pulse Frequency Controllers tONtOFFPulse Length TRelayONOFFTime [s] The output relay of the pulse frequency controlle

48 11.5 Appendix 5 – Abbreviations used in menu displays Abbreviation Meaning Abbreviation Meaning MEAS Measurement CUR.1 Output current 1 CAL

For more information on our products, contact your nearest distributor or visit our website listed below: Thermo Scientific W

10.3 RETURN OF GOODS ... 39 10.4 GUI

1 1 INTRODUCTION 1.1 At the very beginning We thank you for having purchased the Alpha pH 2000 pH/ORP Controller. The construction of the pH/ORP Co

2 1.3 Safety instructions − The Alpha pH 2000 should be installed and operated only by personnel familiar with the transmitter and who are qualifi