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Thermo Scientific ALPHA DO 2000 PG POLAROGRAPHIC DISSOLVED OXYGEN CONTROLLER TRANSMITTER Manual

Processor/transmitter dissolved oxygen ( ppm / m/l / % )
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Alpha DO 2000 PPG
Processor/Transmitter
Dissolved Oxygen ( ppm / m/L / % )

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Related Manuals for Thermo Scientific ALPHA DO 2000 PG POLAROGRAPHIC DISSOLVED OXYGEN CONTROLLER TRANSMITTER

Summary of Contents for Thermo Scientific ALPHA DO 2000 PG POLAROGRAPHIC DISSOLVED OXYGEN CONTROLLER TRANSMITTER

  • Page 1 Alpha DO 2000 PPG Processor/Transmitter Dissolved Oxygen ( ppm / m/L / % )
  • Page 2 ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. U.S. patent 6,793,787. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher. 1-888-pHAX-ION, A+, All in One, Aplus, AQUAsnap, AssuredAccuracy, AUTO-BAR, AUTO- CAL, AUTO DISPENSER, Auto-ID, AUTO-LOG, AUTO-READ, AUTO-STIR, Auto-Test, BOD AutoEZ, Cable-Free, CERTI-CAL, CISA, DataCOLLECT, DataPLUS, digital LogR, DirectCal,...
  • Page 3 Preface This manual serves to explain the use of the Alpha DO 2000 Series. The manual functions in two ways, firstly as a step by step guide to help the user operate the instrument, and secondly as a handy reference guide. This instruction manual is written to cover as many anticipated applications of the Alpha DO 2000 as possible.

  • Page 5: Safety Information

    Safety Information This Controller/ Transmitter shall be installed and operated only in the manner specified in the Instruction manual. Only skilled, trained or authorised 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 7: Table Of Contents

    Table of Contents 1. Introduction ......................1 1.1 Before You Begin ........................1 1.2 Intended Use ..........................1 1.3 Safety Instructions........................2 1.4 Taking Out of Service / Correct Disposal of the Unit ..............2 2. Getting Started ......................3 2.1 Description of Instrument ......................3 2.2 Measurement and Control System....................
  • Page 8 9.2 Assembly Accessories ......................37 10. General Information ..................38 10.1 Warranty ............................ 38 10.2 Packaging / Scope of delivery ....................38 10.3 Return of goods......................... 38 10.4 Guidelines for returning unit for repair..................38 11. Appendices .......................39 11.1 Appendix 1 – Replacing Fuse ....................40 11.2 Appendix 2 –...

  • Page 9: Introduction

    Instruction manual Alpha DO 2000 1. Introduction 1.1 Before You Begin We thank you for purchasing the Alpha DO 2000. The construction of the Alpha DO 2000 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 10: Safety Instructions

    Instruction manual Alpha DO 2000 1.3 Safety Instructions -The Alpha DO 2000 should be installed and operated only by personnel familiar with the transmitter and who are qualified for such work. - A defective transmitter must neither be installed nor put into service. - The Alpha DO 2000 must only be operated under the specified operating conditions - The Alpha DO 2000 must not be repaired by the customer.

  • Page 11: Getting Started

    Instruction manual Alpha DO 2000 2. Getting Started 2.1 Description of Instrument The Alpha DO 2000 is used for measuring dissolved oxygen (in % saturation, mg/l or ppm) and temperature values. The dissolved oxygen values can be measured using limit or P/PI control. The transmitter is available in two versions, one for panel mounting and one for wall mounting in a enclosure.

  • Page 12: Measurement And Control System

    Instruction manual Alpha DO 2000 2.2 Measurement and Control System A typical measurement system consists of: • an Alpha DO 2000 PG dissolved oxygen controller/transmitter • a dissolved oxygen sensor with integrated or separate temperature sensor • an appropriate measurement cable •...

  • Page 13: Unit Overview

    Instruction manual Alpha DO 2000 2.3 Overview Wall mounting version Panel mounting version...

  • Page 14: Display Overview

    Instruction manual Alpha DO 2000 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: MEAS: measurement mode SETUP MEAS SETUP: Setup mode READY - 8 . 8 . 8 . 8 HOLD CAL: Calibration mode Status indicator:...

  • Page 15: Led Indicators

    Instruction manual Alpha DO 2000 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 16: Menu Overview

    Instruction manual Alpha DO 2000 2.3.5 Menu Overview MEAS 13.0 °C CCD “000” = Check calibration parameters (View only mode) CCD “11” = Calibration mode SCD “000” = Check setup parameters (View only mode) SCD “22” = Setup mode SETUP Offset settings HOLD see section 6.2...

  • Page 17: Assembly And Installation

    Instruction manual Alpha DO 2000 3. Assembly and Installation 3.1 Mounting the Unit Wall mount 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)
  • Page 18 Instruction manual Alpha DO 2000 Panel mount version Flat gasket 1mm [.04] (to be inserted by customer) Panel cut out Unit: MM [INCH] Environmental protection class: IP 54 (front), IP 40 (housing)

  • Page 19: Connection Diagram

    Instruction manual Alpha DO 2000 3.2 Connection Diagram Wall mount version Connections Description AC mains live wire Hold function AC mains neutral wire 12V output power supply AC mains protective earth wire 12V output ground Alarm relay (NO) Earth ground Alarm relay common DO input, Anode Alarm relay (NC)
  • Page 20 Instruction manual Alpha DO 2000 Panel mount version Connections Description AC mains live wire Hold function AC mains neutral wire 12V output power supply AC mains protective earth wire 12V output ground Alarm relay (NO) Earth ground Alarm relay common DO input, Anode Alarm relay (NC) DO input, Cathode...

  • Page 21: Normal Operation

    Instruction manual Alpha DO 2000 4. Normal Operation 4.1 Measurement Mode When the controller/transmitter is powered on, the display first shows all segments briefly, and then the controller/transmitter automatically enters into the Measurement mode. NOTE: To guarantee accurate readings the measuring system (transmitter and sensor) must be calibrated.

  • Page 22: Calibration Mode

    Instruction manual Alpha DO 2000 5. 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).

  • Page 23: Calibration

    Instruction manual Alpha DO 2000 5.2 Calibration Calibration is always carried out in the units (%, mg/l or ppm) selected in the Setup mode. The transmitter allows a 1-point or 2-point calibration for dissolved oxygen. 5.2.1 One-Point Calibration SETUP SETUP SETUP SETUP 1-PT...

  • Page 24: Two-Point Calibration

    Instruction manual Alpha DO 2000 NOTES: • If you entered the Calibration mode from the Setup mode, the transmitter will return to the setup menu. • If there is a calibration error the transmitter displays “ERR”. In this case, press the ▲...
  • Page 25 Instruction manual Alpha DO 2000 4. Press ▲ or ▼ key to select the desired unit for barometric pressure (“BAR”, “mmHG” or “PSI”I). Press the ENT key to confirm. 5. Press ▲ or ▼ key to set the barometric pressure according to the selected unit in step 4.

  • Page 26: View Probe Condition

    Instruction manual Alpha DO 2000 5.3 View Probe Condition The probe condition is an indication of its current working condition with respect to its original condition. The probe condition is calculated and stored in the controller each time calibration is done. You can view probe condition without entering into calibration mode.

  • Page 27: Setup Mode

    Instruction manual Alpha DO 2000 6. Setup Mode 6.1 Enter Setup Mode In the Setup mode the transmitter can be configured to your individual requirements. 1. While in Measurement mode press ENT key. 2. The display prompts you to enter the security code. Set the security code with ▲...

  • Page 28: Electrode Offset Settings (Ofs)

    Instruction manual Alpha DO 2000 6.2 Electrode Offset Settings (OFS) The electrode offset settings allow you to zero the transmitter without a sensor. The use of a simulator is recommended. For real zero calibration, use the calibration procedure as described in section 5. If no simulator is used, a 22 kΩ...

  • Page 29: Temperature Setting (Set °C°F)

    Instruction manual Alpha DO 2000 NOTE: The offset value is reset during 2-point calibration. See section 5 for full calibration instructions. 6.3 Temperature Setting (SET °C°F) SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD °C SETUP SETUP SETUP HOLD HOLD HOLD...

  • Page 30: Control Relay A / Relay B Settings (Sp1/Sp2)

    Instruction manual Alpha DO 2000 6.4 Control Relay A / Relay B Settings (SP1/SP2) The SP1 settings define the operating parameters for Relay A; while SP2 defines the operating parameters for Relay B. Since these two settings have the same set-up parameters, only SP1 is described here. SETUP SETUP SETUP...
  • Page 31 Instruction manual Alpha DO 2000 seconds (0 to 1999 seconds) you select. Press ENT key to confirm your setting. NOTE: You can set a time delay for each relay, which stops the relay from switching on the moment the set point is exceeded. This controller lets you set a 0 to 1999 seconds time delay before your relay activates.

  • Page 32: Controller Settings (Cntr)

    Instruction manual Alpha DO 2000 6.5 Controller Settings (CNTR) The CNTR settings define the controller type and relay status the DO controller. SETUP SETUP HOLD HOLD SETUP SETUP HOLD HOLD SETUP HOLD SETUP SETUP SETUP HOLD HOLD HOLD SETUP HOLD SETUP SETUP HOLD...
  • Page 33 Instruction manual Alpha DO 2000 1. From the setup mode, select the “CNTR” screen and then press ENT key. 2. Selecting the controller type (TYP): Press ▲ 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 34 Instruction manual Alpha DO 2000 − If the proportional controller type is set to pulse frequency control (PFC): 9. Selecting the relay status under Non-Alarm condition (REL): Press ▲ or ▼ key to choose the desired relay status (de-energized = “DEEN”...

  • Page 35: Current Output 1 Settings (Cur 1)

    Instruction manual Alpha DO 2000 6.6 Current Output 1 Settings (CUR 1) In this section, you set the current output range of the transmitter for dissolved oxygen values. SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD SETUP SETUP SETUP SETUP HOLD...

  • Page 36: Current Output 2 Settings (Cur 2)

    Instruction manual Alpha DO 2000 6.7 Current Output 2 Settings (CUR 2) In this, you set the current output range of the transmitter for temperature values. SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD °C °C SETUP SETUP SETUP HOLD HOLD HOLD °C...

  • Page 37: Wash Relay Settings (Wash)

    Instruction manual Alpha DO 2000 6.8 Wash Relay Settings (WASH) In this section, you set the parameters for the wash relay. SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD SETUP SETUP HOLD HOLD 1. From the setup mode, select the “WASH” screen and then press ENT key. 2.

  • Page 38: Configuration Settings (Cnfg)

    Instruction manual Alpha DO 2000 6.9 Configuration Settings (CNFG) In this section, you configure the transmitter to suit your requirements. SETUP SETUP SETUP SETUP SETUP UNIT HOLD HOLD HOLD HOLD HOLD mg/l SETUP SETUP UNIT HOLD HOLD SETUP UNIT HOLD ETUP SETUP HOLD...

  • Page 39: Calibration (Cal) Sub-Function

    Instruction manual Alpha DO 2000 6. Selecting the alarm contact type: Press ▲ or ▼ key to select the alarm contact type: − “STDY” = steady contact − “FLET” = fleeting (single pulse) contact Press ENT key to confirm your selection. With this parameter you select whether the alarm contact will operate as NOTE: a steady contact or a fleeting (single pulse) contact.

  • Page 40: Relay Modes

    Instruction manual Alpha DO 2000 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 transmitter’s set point values activate the relays. In Manual mode, you can manually turn “on” and “off”...

  • Page 41: Manual Relay Mode

    Instruction manual Alpha DO 2000 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. 1. While in Measurement mode press MODE key. 2.

  • Page 42: Technical Specifications

    Instruction manual Alpha DO 2000 8. Technical Specifications 8.1 General Specifications Dissolved Oxygen Measuring range 0.00 to 20.00 mg/l or ppm 0.0 to 200.0 % Resolution 0.01 mg/l or ppm or 0.1 % Relative accuracy ±1 % of full-scale reading Temperature Measuring range -9.9 to +125.0...
  • Page 43 Instruction manual Alpha DO 2000 Alarm Functions Function (switchable) Latching or pulse Pickup delay 0 to 1999 seconds Switching voltage max. 250 VAC Switching current max. 3A Switching power max. 600 VA Display UV coat, backlit 14 segments display with symbols for status information Back light On/Off selectable with four levels of brightness...

  • Page 44: Specifications For Wall Mount Version

    Instruction manual Alpha DO 2000 8.2 Specifications for Wall Mount Version Electrical Data and Connections Power requirements 80 to 250 V AC/DC Frequency 48 to 62 Hz Signal output Two 0/4 to 20 mA outputs for DO values and temperature, galvanically isolated max.

  • Page 45: Accessories

    Instruction manual Alpha DO 2000 9. Accessories 9.1 Replacement Unit Eutech Instruments Thermo Scientific Product Description Order Code Order Code Alpha DO 2000 Controller / Transmitter, ECDOCTP2000WPG TSDOCTP2000WPG wall mount version Alpha DO 2000 Controller / Transmitter, ECDOCTP2000PPG TSDOCTP2000PPG panel mount version 9.2 Other Accessories...

  • Page 46: General Information

    Instruction manual Alpha DO 2000 10. General Information 10.1 Warranty This Controller transmitter is supplied with a one-year warranty against significant deviations in material and workmanship from date of purchase and a six-month warranty for probe. Each instrument will have a warranty card with a specific serial number.
  • Page 47 Instruction manual Alpha DO 2000 Scientific will not be responsible for damage resulting from careless or insufficient packing. A restocking charge will be made on all unauthorized returns. NOTE: Thermo Scientific reserves the right to make improvements in design, construction, and appearance of products without notice. 10.4 Guidelines for returning unit for repair Use the original packaging material if possible when shipping the unit for repair.

  • Page 48: Appendices

    Instruction manual Alpha DO 2000 11. Appendices 11.1 Appendix 1 – Replacing Fuse Caution! Before opening the unit to replace the unit fuse, make sure the mains cable is separated from the power supply. Wall mount version (view from the backside) Fuse: 250V, Left Right...

  • Page 49: Appendix 2 - Dissolved Oxygen Values

    Instruction manual Alpha DO 2000 11.2 Appendix 2 – Dissolved Oxygen Values The following table shows the Dissolved Oxygen values at different salinity values, at different temperatures, at barometric pressure of 760 mmHg. For other pressure levels, the controller automatically corrects the value based on the pressure value input.

  • Page 50: Appendix 3 - Simple Explanation On The Function Of Hysteresis

    Instruction manual Alpha DO 2000 11.3 Appendix 3 – Simple Explanation on the Function of Hysteresis SP1 = 4.00 mg/l & Set to LO SP2 = 6.00 mg/l & Set to HI RELAY ON Mg/l RELAY OFF 4.20 4.00 5.80 6.00 Forward Direction Reverse Direction...

  • Page 51: Appendix 4 - General Instructions Concerning Controller Setting

    Instruction manual Alpha DO 2000 11.4 Appendix 4 – General Instructions Concerning Controller Setting Control characteristic of Controllers used as limit value switch MIN function MAX function 100% SP 1 SP 2 Xp = 0 Xp = 0 Control characteristic of P-Controllers as proportional controller MIN function MAX function 100%...
  • Page 52 Instruction manual Alpha DO 2000 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 53: Appendix 5 - Abbreviations Used In Lcd

    Instruction manual Alpha DO 2000 11.5 Appendix 5 – Abbreviations Used in LCD Abbreviation Description Abbreviation Description Nano-ampere AL.D Alarm delay Offset Automatic OFF.D Off delay temperature compensation ON.D On delay Pressure in bar Output signal BKLT Back light P. ºC Process temperature Calibration Pulse frequency control...
  • Page 56 Water Analysis Instruments North America 166 Cummings Center Beverly, MA 01915 USA Toll Free: 1-800-225-1480 Tel: 1-978-232-6000 Dom. Fax: 1-978-232-6015 Int’l Fax: 978-232-6031 Europe P.O. Box 254, 3860 AG Nijkerk Wallerstraat 125K, 3862 CN Nijkerk, Netherlands Tel: (31) 033-2463887 Fax: (31) 033-2460832 Asia Pacific Blk 55, Ayer Rajah Crescent #04-16/24, Singapore 139949...

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Alpha do 2000 ppg

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