EUTECH INSTRUMENTS alpha-pH 2000D Instruction Manual
  1. Manuals
  2. Brands
  3. EUTECH INSTRUMENTS Manuals
  4. Transmitter
  5. alpha-pH 2000D
  6. Instruction manual

EUTECH INSTRUMENTS alpha-pH 2000D Instruction Manual

Ph and orp controller/transmitter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Instruction Manual
αlpha-pH2000D
pH and ORP Controller/Transmitter
Technology Made Easy ...
68X216855 Rev 1 12/04

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the alpha-pH 2000D and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for EUTECH INSTRUMENTS alpha-pH 2000D

Summary of Contents for EUTECH INSTRUMENTS alpha-pH 2000D

  • Page 1 Instruction Manual αlpha-pH2000D pH and ORP Controller/Transmitter Technology Made Easy ... 68X216855 Rev 1 12/04...
  • Page 2 Secondly, it serves as a handy reference guide. This instruction manual is written to cover as many anticipated applications of the αlpha-pH2000D pH/ORP controller/transmitter. If you have doubts in the use of the instrument, please do not hesitate to contact the nearest Eutech Instruments Authorised Distributor.
  • Page 3 Safety Information The Controller/ Transmitter shall be installed and operated only in the manner specified in the Instruction manual. Only skilled, trained or authorized person should carry out installation, setup and operation of the instrument. Before powering up the unit, make sure that power source it is connected to, is as specified in the top label.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ............................1 ........................1 T THE VERY BEGINNING ............................1 NTENDED USE ......................... 2 AFETY INSTRUCTIONS ............... 2 UTTING OUT OF SERVICE ORRECT DISPOSAL OF THE UNIT PRODUCT DESCRIPTION........................3 ........................... 3 ESCRIPTION OF UNIT ....................4 EASUREMENT AND CONTROL SYSTEM ...........................
  • Page 5 8.10 ......................35 ECHANICAL PECIFICATIONS 8.11 (EMC) S ............... 35 LECTROMAGNETIC OMPLIANCE PECIFICATIONS 8.12 ......................35 NVIRONMENTAL ONDITIONS ACCESSORIES............................36 ........................... 36 EPLACEMENT ........................36 SSEMBLY CCESSORIES GENERAL INFORMATION........................37 10.1 ............................37 ARRANTY 10.2 ...................... 37 ACKAGING COPE OF DELIVERY 10.3 ..........................

  • Page 6: Introduction

    αlpha-pH2000D Instruction Manual INTRODUCTION At the very beginning We thank you for having purchased the αlpha pH 2000D pH/ORP Controller. The construction of the pH/ORP Controller employs leading edge technology and complies with safety regulations currently in force. Notwithstanding this, improper use could lead to hazards for the user or a third-party, and/or adverse effects on the plant or other equipment.

  • Page 7: Safety Instructions

    αlpha-pH2000D Instruction Manual Safety instructions - The αlpha pH 2000D should be installed and operated only by personnel familiar with the transmitter and who are qualified for such work. - A defective controller must neither be installed nor put into service. - The αlpha pH 2000D must only be operated under the specified operating conditions (see section 8).

  • Page 8: Product Description

    αlpha-pH2000D Instruction Manual PRODUCT DESCRIPTION Description of unit The αlpha pH 2000D is used for measuring pH and temperature values. The pH values can be measured using industrial differential & combination pH sensors. The temperature values can be measured using 2-wire / 3-wire NTC300 thermistor. The transmitter is available in a wall mounting enclosure.

  • Page 9: Measurement And Control System

    αlpha-pH2000D Instruction Manual Measurement and control system A typical measurement system consists of: • A pH/ORP process controller • A pH/ORP combination electrode with integrated or separate temperature sensor NTC300 thermistor. • An appropriate pH or ORP measurement cable • An immersion, flow or process assembly with or without a potential matching pin (PMP) •...

  • Page 10: Unit Overview

    αlpha-pH2000D Instruction Manual Unit overview Wall mounting version - 5 -...

  • Page 11: Display Overview

    αlpha-pH2000D Instruction Manual 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 indicators. Mode indicators: SETUP MEAS pH % MEAS: measurement mode READY HOLD SETUP: Set-up mode CAL: Calibration mode Status indicator: READY: Visible after successful calibration...

  • Page 12: Led Indicators

    αlpha-pH2000D Instruction Manual 2.3.3 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 refer. Relay mode indicators Auto LED lights if relay operation is set to automatic mode. Manu LED lights if relay operation is set to manual mode.

  • Page 13: Menu Overview

    αlpha-pH2000D Instruction Manual 2.3.5 Menu overview MEAS °C CCD “000” = Check calibration parameters (View only mode) ENTER CCD “11” = Calibration mode SCD “000” = Check setup parameters (View only mode) SCD “22” = Setup mode ENTER ENTER SETUP Offset setting HOLD see section 6.2...

  • Page 14: Assembly And Installation

    αlpha-pH2000D Instruction Manual ASSEMBLY AND INSTALLATION Mounting the unit Wall mounting version 111.50 [4.39] 144 [5.67] 27.5 [1.08] 39 [1.54] For Pg13.5 cable glands 24 [.94] Pg13.5 (3 pcs.) 78 [3.07] 57.8[2.28] 80 [3.15] Holes for post mounting (4X) Holes for wall mounting (2X) Red Plugs for wall mounting holes...

  • Page 15: Connection Diagram

    αlpha-pH2000D Instruction Manual Connection Diagram Caution: Ensure electrical mains are disconnected before proceeding. Connections for wall mounting version Fuse: 250V 315 mA, Time Delay Current Current TEMP HOLD SENS TEMP ME AS 250V, 315 mA, Time Delay Current Current TEMP HOLD -5 V SENS TEMP...
  • Page 16 αlpha-pH2000D Instruction Manual NOTE: a) Switch or circuit breaker shall be included in the building installation. b) It shall be in close proximity to the equipment and within easy reach of the operator. c) It shall be marked as the disconnecting device for the equipment. - 11 -...

  • Page 17: Normal Operation

    αlpha-pH2000D Instruction Manual NORMAL OPERATION Measurement mode When the controller/transmitter is powered on, the display first shows all segments briefly, after which the controller/transmitter automatically enters into the Measurement mode. Please note: To guarantee accurate readings, the measuring system (transmitter and sensor) must be calibrated.

  • Page 18: Calibration Mode

    αlpha-pH2000D Instruction Manual CALIBRATION MODE You can access the Calibration mode directly from the Measurement mode by pressing the CAL key and entering the Calibration security code “11”. Calibration mode may also be accessed via the Setup mode (see section 6.1). Entering Calibration mode MEAS ENTER...

  • Page 19: Ph Calibration

    αlpha-pH2000D Instruction Manual pH Calibration If the unit of measure is in pH (default), then the calibration is also carried out in pH. This transmitter features a one-point or two-point calibration for pH with five preset buffer sets. Buffer values refer to 25 C.
  • Page 20 αlpha-pH2000D Instruction Manual Note: If there is a calibration error, the controller displays “CAL ERR”. If this happens, push both ▲ and ▼ keys (escape) to restart the calibration beginning from Step 1. Note: When calibrating with manual temperature compensation, the controller automatically changes from the preset process temperature to the calibration temperature.

  • Page 21: Orp-Mv Calibration

    αlpha-pH2000D Instruction Manual ORP-mV Calibration If controller is configured for ORP-mV measuring you can perform a one-point calibration. MEAS R.mV HOLD HOLD 1. Enter Calibration mode as described in section 5.1. The display should read “CAL ORP”. Note: If the display reads “CAL PH”, see section 6.9 for procedures on how to switch from pH to ORP-mV readings.

  • Page 22: View Actual Zero And Slope

    αlpha-pH2000D Instruction Manual Note: If there is a calibration error, the controller displays “CAL ERR”. If this happens, push both ▲ or ▼ keys (escape) to restart the calibration beginning from Step 1. Note: If you stop calibration after entering the first value, or if calibration is defective, the controller will use its original calibration data.

  • Page 23: Setup Mode

    αlpha-pH2000D Instruction Manual SETUP MODE Enter Setup mode In the Setup mode the transmitter can be configured to your individual requirements. 1. While in Measurement mode press the ENT key. MEAS 2. The display prompts you to enter the security code. Set the security code with ▲ or ▼...

  • Page 24: Electrode Offset (Ofs) Sub-Function

    αlpha-pH2000D Instruction Manual Electrode Offset (OFS) sub-function The electrode offset sub-function is only available if the transmitter is configured for pH measuring. Use this sub-function to set an offset that corrects the readings without removing the electrode from the control system. The setting range is ± 120 mV. The transmitter will add or subtract the offset value from the measuring pH and display the corrected value.

  • Page 25: Setting Temperature (Set °C°F) Sub-Function

    αlpha-pH2000D Instruction Manual Setting temperature (Set °C°F) sub-function SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD SETUP SETUP SETUP HOLD HOLD HOLD 1. Select the “SET °C°F” sub-function, then press the ENT key. 2. Selecting temperature unit: press the ▲ or ▼ key to select the desired temperature unit “°C”...

  • Page 26: Control Relaya / Relayb (Sp1/Sp2) Sub - Function

    αlpha-pH2000D Instruction Manual Control Relay A / Relay B (SP1/SP2) sub-function The SP1 sub-function determines the operating parameters for Relay A; while SP2 defines the operating parameters for Relay B. Since these groups have the same set-up parameters, they are described together. SETUP SETUP SETUP...
  • Page 27 αlpha-pH2000D Instruction Manual 5. Setting the on-delay time lag: press the ▲ or ▼ key to enter the on-delay time for set point 1 (set point 2). The controller will delay activation of the relay for the number of seconds (0 to 2000 seconds) you select.

  • Page 28: Controller (Cntr) Sub-Function

    αlpha-pH2000D Instruction Manual Controller (CNTR) sub-function The CNTR sub-function determines the controller’s parameters. SETUP SETUP HO LD HO LD SETUP SETUP HO LD HO LD SETUP HO LD SETUP SETUP SETUP HO LD HO LD HO LD SETUP HO LD SETUP SETUP HO LD...
  • Page 29 αlpha-pH2000D Instruction Manual 1. Select the “CNTR” sub function, then press the ENT key. 2. Selecting the controller type: press the ▲ or ▼ key to select the suitable controller type: − OFF = controller off Use control Off to operate controller as a monitor only or to prevent relays from switching.
  • Page 30 αlpha-pH2000D Instruction Manual − If the proportional controller type is set to pulse frequency control (PFC): 9. Selecting the relay status under Non-Alarm condition: press the ▲ or ▼ key to choose the desired relay status (de-energized = “DEEN” or energized = “EN”). Press the ENT key to confirm your selection.

  • Page 31: Current Output 1 Sub-Function

    αlpha-pH2000D Instruction Manual Current Output 1 sub-function In this sub-function you set the current output range of the transmitter for pH or ORP values. SETUP SETUP SETUP SETUP SETUP cur.1 HOLD HOLD HOLD HOLD HOLD SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD...

  • Page 32: Current Output 2 Sub-Function

    αlpha-pH2000D Instruction Manual Current Output 2 sub-function In this sub-function you set the current output range of the transmitter for temperature values. SETUP SETUP SETUP SETUP cur.2 HOLD HOLD HOLD HOLD SETUP SETUP SETUP HOLD HOLD HOLD 1. Select the “CUR.2” sub-function, then press the ENT key. 2.

  • Page 33: Wash Relay (Wash) Sub-Function

    αlpha-pH2000D Instruction Manual Wash relay (WASH) sub-function In this sub-function you set the parameters for the wash relay. SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD SETUP HOLD SETUP HOLD 1. Select the “WASH” sub-function, and then press the ENT key. 2.

  • Page 34: Configuration (Cnfg) Sub-Function

    αlpha-pH2000D Instruction Manual Configuration (CNFG) sub-function In this sub-function you configure the transmitter to suit your requirements. SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD SETUP HOLD SETUP HOLD SETUP HOLD SETUP SETUP HOLD HOLD SETUP HOLD SETUP MEAS HOLD SETUP...

  • Page 35: Calibration (Cal) Sub-Function

    αlpha-pH2000D Instruction Manual 6. Selecting the alarm contact type: press the ▲ or ▼ key to select the alarm contact type: − “STDY” = steady contact − “FLET” = fleeting (single pulse) contact Press the ENT key to confirm your selection. Note: With this parameter you select whether the alarm contact will operate as a steady contact or a fleeting (single pulse) contact.

  • Page 36: Relay Modes

    αlpha-pH2000D Instruction Manual 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 transmitter’s set point values activate the relays. In Manual mode, you can manually turn “on” and “off” the control devices connected to the relays. View relay set points To view relay set points, the relay mode must be set to automatic (standard mode after switch- on, relay mode LED “Auto”...

  • Page 37: Manual Relay Mode

    αlpha-pH2000D Instruction Manual 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. 1. While in Measurement mode press the MODE key. 2. The display prompts you to enter the security code. Press the ▲ or ▼ key to set security code to “22”.

  • Page 38: Technical Specifications

    αlpha-pH2000D Instruction Manual TECHNICAL SPECIFICATIONS General Specification (a) pH pH Measuring Range -2.00 to 16.00 pH Resolution 0.01 pH Accuracy ± 0.01 pH (b) mV mV Measuring Range -1000 to 1000 mV Resolution 1 mV Accuracy ± 1 mV (b) mV percentage Percentage mV Measuring Range 0 to 100% (for -100 to 100 mV) Resolution...

  • Page 39: Wash Function - Wash Relay

    αlpha-pH2000D Instruction Manual (c) (2) Pulse Frequency Control (PFC) Pulse Frequency 60 to 120 pulses / minutes Contact Outputs Two SPST relays Switching Voltage / Current / Power Max 250VAC / Max 3A / Max 600VA Wash Function – Wash Relay Relay contact selection for active mode Energise (EN) or De-energise (DEEN)

  • Page 40: Display

    αlpha-pH2000D Instruction Manual Display UV coat, backlit 14 segments display with symbols for status information Back light On/Off selectable with four levels of brightness control Power Supply Input 80 to 250VAC/DC, 50/60Hz, Approximately 10VA Main Fuse 315mA Time Delay, 250V, Bussmann BK/GDC-315mA Pollution Degree Transient Voltage Category Connector...

  • Page 41: Accessories

    αlpha-pH2000D Instruction Manual ACCESSORIES Replacement Unit Product Description Eutech Instruments Order Code αlpha pH 2000 Controller / Transmitter, wall mount version EC-PHCTP2000D Assembly Accessories Product Description Eutech Instruments Order Code pH Differential Electrode with NTC300 thermistor ECFP21A1A1 ORP Differential Electrode with NTC300 thermistor ECFR21A1A1 Note: Above pH/OR electrodes can withstand a pressure up to 6 bar pressure.

  • Page 42: General Information

    Before returning goods for any reason whatsoever, Customer Service Dept. has to be informed in advance. Items must be carefully packed to prevent damage during shipment, and insured against possible damage or loss. Eutech Instruments/ Oakton Instruments will not be responsible for any damage resulting from careless or insufficient packing.

  • Page 43: Appendices

    αlpha-pH2000D Instruction Manual 11 APPENDICES 11.1 Appendix 1 – Unit fuse and jumper settings Caution! Before opening the unit to replace the unit fuse, make sure the mains cable is separated from the power supply. View from both PCBA side Factory setting: NTC300 Fuse 250V, 315 mA, Time Delay...

  • Page 44: Appendix 2 - P Hbuffer Values At Various Temperatures

    αlpha-pH2000D Instruction Manual 11.2 Appendix 2 – pH buffer values at various temperatures The following table shows the various pH values at different temperature of the solution during calibration. Temperature pH 1.00 pH 4.01 pH 6.86 pH 7.00 pH 9.00 pH 9.18 pH 10.01 0.96...

  • Page 45: Appendix 3 - Simple Explanation On The Function Of Hysteresis

    αlpha-pH2000D Instruction Manual 11.3 Appendix 3 – Simple explanation on the function of hysteresis SP1 Set to LO SP2 Set to HI RELAY ON RELAY OFF 10.0 FORWARD DIRECTION HYSTERESIS BAND REVERSE DIRECTION (DEFAULT = 0.5 pH) The controller relay activates when the set-point is reached. In the reverse direction, it does not de-activate when the value reaches the set-point.

  • Page 46: Appendix 4 - General Instructions Concerning Controller Setting

    αlpha-pH2000D Instruction Manual 11.4 Appendix 4 – General instructions concerning Controller Setting 11.4.1 Control characteristic of Controllers used as limit value switch MIN function MAX function 100% SP 1 SP 2 Xp = 0 Xp = 0 11.4.2 Control characteristic of P-Controllers as proportional controller MIN function MAX function 100%...

  • Page 47: Control Signal Of Pulse Length Controllers

    αlpha-pH2000D Instruction Manual 11.4.4 Control signal of Pulse length Controllers Relay Pulse Length T tOFF Time [s] The output relay of the pulse length controller is clock-timed. The switching period T remains constant. Depending on the divergence from the limit value, the switch on time tON is increased or decreased in accordance with the proportional range Xp.

  • Page 48: Control Signal Of Pulse Frequency Controllers

    αlpha-pH2000D Instruction Manual 11.4.5 Control signal of Pulse Frequency Controllers Relay Pulse Length T tOFF Time [s] The output relay of the pulse frequency controller is clock-timed. The pulse duration tON remains constant at 250 msec. Depending on the divergence from the limit value, the frequency (1/T) is increased or decreased in accordance with the proportional range Xp.

  • Page 49: Appendix 5 - Abbreviations Used In Menu Displays

    αlpha-pH2000D Instruction Manual 11.5 Appendix 5 – Abbreviations used in menu displays Abbreviation Meaning Abbreviation Meaning MEAS Measurement CUR. 1 Output current 1 Calibration CUR. 2 Output current 2 Enter Output signal Offset 4 - 20 4 to 20mA C. CD Calibration security code 0 - 20 0 to 20 mA...
  • Page 50 For more information on Eutech Instruments’ products, contact your nearest distributor or visit our website listed below: Eutech Instruments Pte Ltd. Distributed by: Blk 55, Ayer Rajah Crescent, #04-16/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0836 E-mail: marketing@eutechinst.com...

This manual is also suitable for:

Αlpha-ph2000d series

Table of Contents