EUTECH INSTRUMENTS ALPHA CON 1000 CONDUCTIVITY CONTROLLERTRANSMITTER (REVISION 3) Instruction Manual
Conductivity controller/transmitter
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Summary of Contents for EUTECH INSTRUMENTS ALPHA CON 1000 CONDUCTIVITY CONTROLLERTRANSMITTER (REVISION 3)
- Page 1 Instruction Manual αlpha-CON 1000 Conductivity Controller/Transmitter Technology Made Easy ... 68X216802 rev 3, 11/04...
- Page 2 The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on part of Eutech Instruments Pte Ltd. Eutech Instruments cannot accept any responsibility for damage or malfunction of the unit due to improper use of the instrument.
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Page 3: Safety Information
Safety Information The Eutech 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 Description of Unit ....................1 Applications ......................1 ASSEMBLY AND INSTALLATION ........... 2 Measurement and Control System..............2 Unit Dimensions ....................2 ELECTRICAL CONNECTION............3 Connection Diagram ...................3 Back Panel ......................4 OVERVIEW ..................5 Keypad and Display ....................5 4.1.1 Keypad.................. - Page 5 Controller (Cntr) sub-function.................17 7.4.1 Entering the Controller sub-function .......... 17 7.4.2 Choosing the controller type (limit or proportional)....18 7.4.3 Choosing Break/Make Contact Relay Type ....... 18 7.4.4 Selecting Proportional Range Value, Xp........19 7.4.5 Maximum Pulse Length (tPL) or Maximum Frequency (FPF) .. 19 Measurement Range sub-function ..............20 7.5.1 Selecting the Measuring Range sub-function ......
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Page 6: Introduction
INTRODUCTION Description of Unit Thank you for purchasing the ¼ DIN alpha-1000 series Conductivity process controllers. This unit is used for measuring the Conductivity of a solution, either in micro-Siemens or milli-Siemens, one at a time, and the operational mode is switchable from the menu. You can use this unit to measure Conductivity with limit control. -
Page 7: Assembly And Installation
αlpha-CON1000 Operating Instructions ASSEMBLY AND INSTALLATION Measurement and Control System A typical measurement system consists of: • a αlpha-CON1000 process controller • a suitable Conductivity electrode with the appropriate Cell constant and integrated temperature sensor Pt 1000 or Pt 100, •... -
Page 8: Electrical Connection
αlpha-CON1000 Operating Instructions ELECTRICAL CONNECTION ENSURE that the power cable is physically separated from the power supply. Connection Diagram Cond. 18 19 20 PE/S Pt 100 Signal Input Conductivity Relay 2 Relay 1 Hold Input Signal Output Power Mains Alarm Cond. -
Page 9: Back Panel
αlpha-CON1000 Operating Instructions Back Panel The back panel consists of two connectors. The first connector is the 17-way PCB edge connector and the other is the 5-way connector. ENSURE that the power cable is physically separated from the power supply. Connection for the 17-way screw terminals (from left to right): 1. -
Page 10: Overview
αlpha-CON1000 Operating Instructions OVERVIEW Keypad and Display 4.1.1 Keypad • Perform rapid calibration • Allows entry to Set up mode • Select individual functions within the function group of Set up mode • Store input data in the Set up mode •... -
Page 11: Function Groups
αlpha-CON1000 Operating Instructions Function Groups The main function and sub-function groups are organised in a matrix format for configuration and selection of parameters. The main function groups are: Temperature Coefficient settings ( ). See Section 7.1. Temperature Measurement / compensation settings ( ). -
Page 12: Control Concept
αlpha-CON1000 Operating Instructions Control Concept The main function and sub-function groups are organised in a matrix format as shown below. These functions can be accessed via the front keypad for configuration and selection of parameters. MEASURE CODE Temp Coeff Pur / Lin Set Coeff Process temp. -
Page 13: Measurement
αlpha-CON1000 Operating Instructions MEASUREMENT Display in Measurement mode When the controller is initially powered on, it automatically enters into the Measurement mode after the large dual LCD displays all segments briefly. The upper display shows the measured Conductivity value, while the lower display shows the temperature value. -
Page 14: Security Codes
αlpha-CON1000 Operating Instructions Security Codes This controller has two levels of security protection with separate security codes. The first level allows entry into the Calibration mode: security code = 11; the second allows entry into the SETUP mode: security code = 22. The security codes protect the controller from unauthorised tampering of its current setting. - Page 15 αlpha-CON1000 Operating Instructions 5.2.2.1 Clearing the Advanced Setup security code from the display After you have entered the security code and returned to the Measurement mode, the security code “22” still appears on the display whenever you press the ENTER key. To conceal the security code, you must manually reset the code.
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Page 16: Calibration Mode
αlpha-CON1000 Operating Instructions CALIBRATION MODE You can reach the Calibration mode directly from the Measurement mode by pressing the CAL key and entering the Calibration security code. You can also reach the Calibration mode from the Advanced Setup mode. Conductivity Calibration Calibration is always carried out in the specific range selected. -
Page 17: Advanced Set-Up Mode
αlpha-CON1000 Operating Instructions ADVANCED SET-UP MODE Temperature Coefficient sub-function This sub-function allows you to select the correct temperature coefficient for optimum operations. For applications in the pure water or ultra-pure water industries, simply select the “Pur” temperature coefficient option. For all other applications, select “Lin” temperature coefficient. The controller allows further input of temperature coefficient values, independently for the process and for the calibrating solutions. -
Page 18: Temperature Calibration (Atc Mode Only)
αlpha-CON1000 Operating Instructions Temperature Calibration (ATC mode only) Enter Advanced Set-up mode. Push the ENTER key and (use ▲ or ▼ HOLD SETUP keys to) scroll to Advanced Set-up security code “22”. Push the ENTER key again. °C Press the ▲ or ▼ keys to scroll until the display shows “SEt ºC”. Push ENTER key. -
Page 19: Control Relay A/Control Relay B (Sp1/Sp2) Sub-Function
αlpha-CON1000 Operating Instructions Press ENTER key to confirm your selection. Continue with additional Additional Set-up procedures, or return to Measurement mode by pressing the ▲ and ▼ keys (escape) simultaneously). Control Relay A/Control Relay B (SP1/SP2) sub-function The SP1 option sets the operating parameters for Relay A; and SP2 for relay B. Since these groups have the same set-up parameters, they are described together. -
Page 20: Choosing High Or Low Set Points
αlpha-CON1000 Operating Instructions 7.3.3 Choosing High or Low set points Select a low set point to activate controller when the conductivity value undershoots the low set point; select a high set point to activate controller when the value overshoots the high set point. Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo, or hi/hi set points (Default: SP1 = Lo;... -
Page 21: Setting An On-Delay Time Lag
αlpha-CON1000 Operating Instructions 7.3.5 Setting an on-delay time lag You can set as 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 the relay activates. -
Page 22: Controller (Cntr) Sub-Function
αlpha-CON1000 Operating Instructions Controller (Cntr) sub-function You can set the controller’s parameters in this sub-function. HOLD SETUP HOLD SETUP HOLD SETUP HOLD SETUP HOLD SETUP HOLD SETUP 7.4.1 Entering the Controller sub-function Enter Advanced Set-up mode. Push the ENTER key and scroll to Advanced set-up security code “22”. -
Page 23: Choosing The Controller Type (Limit Or Proportional)
αlpha-CON1000 Operating Instructions 7.4.2 Choosing the controller type (limit or proportional) This mode lets you choose your controller type: limit control, pulse length proportional control, pulse frequency proportional control, or control off. Use limit control with pumps or values for fast response. Use pulse frequency proportional control to operate your pumps smoothly Use pulse length proportional control for precise control of proportional valves. -
Page 24: Selecting Proportional Range Value, Xp
αlpha-CON1000 Operating Instructions 7.4.4 Selecting Proportional Range Value, Xp Note: If the controller type “oFF” is set, the parameters listed in 7.4.3, 7.4.4, and 7.4.5 are blanked out. This mode lets you set a band as a percentage of its full scale value. You can select this range from 10 to 200%, and the lower display shows “PrP”. -
Page 25: Measurement Range Sub-Function
αlpha-CON1000 Operating Instructions Measurement Range sub-function HOLD SETUP In this sub-function, the appropriate range is selected with the appropriate cell constant. 7.5.1 Selecting the Measuring Range sub-function Enter Advanced Set-up mode. Push the ENTER key and scroll to Advanced Set-up security code “22”. Push the ENTER key again. -
Page 26: Current Output (Rng) Sub-Function
αlpha-CON1000 Operating Instructions Current Output (rng) sub-function This sub-function lets you set the transmitter current output range of this unit. The difference between the upper and lower range has to be a minimum of 20% of Full Scale, anywhere on the scale. 7.6.1 Entering current output sub-function Enter Advanced Set-up mode. -
Page 27: Selecting Conductivity Value At 20Ma
αlpha-CON1000 Operating Instructions 7.6.4 Selecting Conductivity value at 20mA This parameter lets you choose the conductivity value at which the transmitter output will be 20mA. Follow directions in 7.6.1 to enter Current Output mode. Press the ENTER key. Scroll with the ▲ or ▼ keys until the upper display shows a conductivity value and the lower display shows “r.20”. -
Page 28: Selecting The Alarm Time Lag
αlpha-CON1000 Operating Instructions 7.7.3 Selecting the alarm time lag This parameter group lets you select a period of time before the alarm HOLD SETUP activates when your set point has been overshot. You can select from 0 to 1999 seconds. Follow directions in 7.7.1 to enter Configuration mode. -
Page 29: Input Line Resistance Adjust
αlpha-CON1000 Operating Instructions Proceed to 7.7.6, or return to Measurement mode by pressing the ▲ and ▼ keys simultaneously (escape). 7.7.6 Input Line Resistance Adjust This function compensates for the line resistance of the cable to its cell. Follow directions in 7.7.1 to enter Configuration mode. SETUP HOLD Press the ENTER key. -
Page 30: Auto/Manual Mode
αlpha-CON1000 Operating Instructions AUTO/MANUAL MODE Regardless of the mode, you can control devices connected to Relay A or Relay B from the front panel of this controller. In Automatic mode, the controller’s set point values activate the relays. In Manual mode, you have manual control of the relays so you can prime the pump or check pump status without operating the entire system. -
Page 31: Technical Specifications
αlpha-CON1000 Operating Instructions TECHNICAL SPECIFICATIONS Conductivity Range Resolution Default Cell Constant, K Optional Cell, K 0.000 to 1.999 µS/cm 0.001 µS/cm 0.01 0.01 0.00 to 19.99 µS/cm 0.01 µS/cm 0.0 to 199.9 µS/cm 0.1 µS/cm 0 to 1999 µS/cm 1 µS/cm 0 to 5000 µS/cm 5 µS/cm 0.00 to 19.99 mS/cm... -
Page 32: 10 Accessories
11.1 Warranty Eutech Instruments warrants this product to be free from significant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and has not been the result of abuse or misuse within the warranty period, please return by freight pre- paid and amendment will be made without any charge. -
Page 33: 11.4 Guidelines For Returning Unit For Repair
αlpha-CON1000 Operating Instructions 11.4 Guidelines for Returning Unit for Repair Use the original packaging material, if possible when shipping the unit for repair. Otherwise wrap it with bubble pack and use a corrugated box for better protection. Include a brief description of any faults suspected for the convenience of Customer Service Dept., if possible. -
Page 34: 12.2 Appendix 2 - Measurement Ranges Available In The Controller
αlpha-CON1000 Operating Instructions 12.2 Appendix 2 – Measurement Ranges available in the Controller Range No. Range Resolution Default cell K 0.000 – 1.999 µS 0.001 µS 0.01 0.00 – 19.99 µS 0.01 µS 0.01 0.00 – 19.99 µS 0.01 µS 0.0 –... - Page 35 αlpha-CON1000 Operating Instructions Substance Concentration wt Conductivity 10 S/cm Conductivity Coefficient 1.04 1129 1.14 2070 1.50 2087 1.61 2073 1.74 NaCl 2.17 1211 2.14 1642 2.12 1957 2.16 2153 2.27 2.36 2.49 2.56 1969 1.58 3124 1.56 3463 1.54 1.52 5152 2085 1.21...
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Page 36: Appendix 4 - Conductivity Of Various Aqueous Solutions At 25 C
αlpha-CON1000 Operating Instructions Substance Concentration wt Conductivity 10 S/cm Conductivity Coefficient 2.06 (15 C) 1.94 1907 1.77 3.25 2.07 (15 C) 1026 1.93 1.98 1776 1.86 2586 1.71 3365 1.61 4025 1.54 2.15 1010 2.03 1779 1.93 2292 1.91 12.4 Appendix 4 – Conductivity of Various Aqueous Solutions at 25 C Conductivity Resistivity... -
Page 37: 12.5 Appendix 5 - Simple Explanation On The Function Of Hysteresis
αlpha-CON1000 Operating Instructions 12.5 Appendix 5 - Simple Explanation on the Function of Hysteresis SP1 Set to LO SP2 Set to HI RELAY ON RELAY OFF 10.0 10.5 100.0 100.5 FORWARD DIRECTION HYSTERESIS BAND REVERSE DIRECTION 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 38: Appendix 6 - General Instructions Concerning Controller Setting
αlpha-CON1000 Operating Instructions 12.6 Appendix 6 – General Instructions Concerning Controller Setting MIN Function MAX Function 100 % 50 % + Xw - Xw SP 1 SP 2 Xp = 0 Xp = 0 Control characteristic of P-Controllers as limit value switch... - Page 40 For more information on Eutech Instruments products, contact your nearest Eutech Instruments distributor or visit our website listed below: DISTRIBUTED BY: Manufactured by: Eutech Instruments Pte Ltd. Blk 55 Ayer Rajah Crescent #04-16/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0836 E-mail: marketing@eutechinst.com...