Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Thermo Scientific ALPHA PH 2000D DIFFERENTIAL PH CONTROLLER
Summary of Contents for Thermo Scientific ALPHA PH 2000D DIFFERENTIAL PH CONTROLLER
- Page 1 Alpha DO 2000 PPG Processor/Transmitter Dissolved Oxygen ( ppm / m/L / % )
- Page 2 Preface This manual serves to explain the use of the Alpha-pH2000D series pH/ORP controller/transmitter. The manual functions in two ways, firstly as a step by step guide to help the user operate the instrument. Secondly, it serves as a handy reference guide. This instruction manual is written to cover as many anticipated applications of the Alpha-pH2000D pH/ORP controller/transmitter.
- 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. Failure to do so may result in a permanent damage to the unit.
-
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 ................................5 NIT OVERVIEW 2.3.1 Display Overview..............................6... - Page 5 GENERAL INFORMATION..............................34 10.1 .................................34 ARRANTY 10.2 ..........................34 ACKAGING COPE OF DELIVERY 10.3 ..............................34 ETURN OF GOODS 10.4 ......................34 UIDELINES FOR RETURNING UNIT FOR REPAIR 10.5 .............................34 AINTENANCE AND LEANING APPENDICES ..................................35 11.1 1 – U ......................35 PPENDIX NIT FUSE AND JUMPER SETTINGS 11.2 2 –...
-
Page 6: Introduction
INTRODUCTION At the beginning We thank you for having purchased the Alpha 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
Safety Instructions - The Alpha 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 Alpha pH 2000D must only be operated under the specified operating conditions (see section 8). -
Page 8: Product Description
Product Description Description of Unit The Alpha 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
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
Unit Overview Wall mounting version - 5 -... -
Page 11: Display Overview
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 MEAS: measurement mode pH % READY SETUP: Set-up mode HOLD CAL: Calibration mode Status indicator: READY: Visible after successful calibration HOLD: Unit in “HOLD”... -
Page 12: Led Indicators
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
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 E NTER E NTER SET P Offset setting HOLD see section 6.2... -
Page 14: Assembly And Installation
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 6 [.24]... -
Page 15: Connection Diagram
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 RE F MEAS... -
Page 16: Normal Operation
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. MEAS The mode indicator “MEAS”... -
Page 17: Calibration Mode
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 ENT ER ENT ER... -
Page 18: Ph Calibration
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 19: Orp-Mv Calibration
ORP-mV Calibration If controller is configured for ORP-mV measuring you can perform a one-point calibration MEAS R.mV HOLD HOLD 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 20: View Actual Zero And Slope
View actual zero and slope MEAS While in Measurement mode press the CAL key. The display will prompt you to enter a security code. Leave the security code at “000” (view only mode). Press the ENT key. The display shows the slope in mV (upper value) and the pH reading at 0 mV (zero point, lower value). Note: If no key is pressed for 30 seconds the transmitter automatically returns to the Measurement mode. -
Page 21: Setup Mode
Setup Mode Enter Setup mode In the Setup mode the transmitter can be configured to your individual requirements. While in Measurement mode press the ENT key. The display prompts you to enter the security code. Set the security code with ▲ or ▼ key MEAS −... -
Page 22: Electrode Offset (Ofs) Sub-Function
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 23: Setting Temperature (Set °C°F) Sub-Function
Setting temperature (Set °C°F) sub-function SETUP SETUP SETUP SETUP SETUP HOLD HOLD HOLD HOLD HOLD SETUP SETUP SETUP HOLD HOLD HOLD Select the “SET °C°F” sub-function, then press the ENT key. Selecting temperature unit: press the ▲ or ▼ key to select the desired temperature unit “°C” or “°F”. Press the ENTER key to confirm your selection. -
Page 24: Control Relaya / Relayb (Sp1/Sp2) Sub - Function
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 SETUP... - Page 25 Setting the off-delay time lag: press the ▲ or ▼ key to enter the off-delay time for set point 1 (set point 2). Your controller will delay deactivation of the relay for the number of seconds (0 to 2000 seconds) you select.
-
Page 26: Controller (Cntr) Sub-Function
Controller (CNTR) sub-function The CNTR sub-function determineshe 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 HO LD SETUP HO LD... - Page 27 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. − L.CT = limit value control (on/off control). Use limit control with pumps or valves for fast response −...
-
Page 28: Current Output 1 Sub-Function
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 Select the “CUR.1”... -
Page 29: Current Output 2 Sub-Function
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 Select the “CUR.2” sub-function, then press the ENT key. Selecting the output type: press the ▲... -
Page 30: Wash Relay (Wash) Sub-Function
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 Select the “WASH” sub-function, and then press the ENT key. Enabling/disabling wash function: press the ▲ or ▼ key to enable (WASH ON) or disable (WASH OFF) wash function. -
Page 31: Configuration (Cnfg) Sub-Function
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 HOLD Select the “CNFG”... -
Page 32: Calibration (Cal) Sub-Function
Note: With this parameter you select whether the alarm contact will operate as a steady contact or a fleeting (single pulse) contact. Pulse contact closing time is 1 second. Resetting the transmitter settings to factory defaults: The display shows “NO DEF”. Press the ▲ or ▼... -
Page 33: Relay Modes
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 34: Manual Relay Mode
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. While in Measurement mode press the MODE key. The display prompts you to enter the security code. Press the ▲ or ▼ key to set security code to “22”. Press the ENT key. -
Page 35: Technical Specifications
Technical Specifications 8.1 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 36: Alarm Function - Alarm Relay
8.4 Alarm Function – Alarm Relay Alarm Delay 0 to 2000 seconds Alarm control Steady or Fleet (pulse) Contact Outputs One SPDT relay Switching Voltage / Current / Power Max 250VAC / Max 3A / Max 600VA 8.5 Transmitter Function (a) Current Output 1 –... -
Page 37: Electromagnetic Compliance (Emc) Specifications
8.11 Electromagnetic Compliance (EMC) Specifications Emitted Interference EN 61326 Immunity to Interference EN 61326 8.12 Environmental Conditions Ambient Temperature operating range 0 to 40 Maximum Relative Humidity 80% up to 31 C decreasing linearly to 50% at 40 - 32 -... -
Page 38: Accessories
Accessories Replacement Unit Product Description Eutech Instruments Order Code Alpha pH 2000 Controller / Transmitter, wall mount version EC-PHCTP2000D 9.2.1 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 39: 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 40: Appendices
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 Alpha pH/DO20000W New Main Rev 0.2... -
Page 41: Appendix 2 - P Hbuffer Values At Various Temperatures
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 4.01 6.98... -
Page 42: Appendix 3 - Simple Explanation On The Function Of Hysteresis
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 43: Appendix 4 - General Instructions Concerning Controller Setting
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 44: Control Signal Of Pulse Length Controllers
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 45: Control Signal Of Pulse Frequency Controllers
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 46: Appendix 5 - Abbreviations Used In Menu Displays
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 S. - Page 48 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...