CTCII CONDUCTIVITY/TDS Chemical Treatment Controller (Cooling Tower Controller) Operation Manual 14 JANUARY 05 INSTALLATION • OPERATION • MAINTENANCE Controller Only: CTCII, & CTCIIT Monitor/controller: CTCIID, & CTCIITD ACCURACY • RELIABILITY • SIMPLICITY Water Quality Instrumentation Accuracy • Reliability • Simplicity
BLEED VALVE POWER PWR SET POINT HYSTERESIS RIGHT INC LEFT DEC RELAY C GD PWR FEED PUMP FLOW SWITCH C GDPWR C GD FS SENSOR Flow Switch Jumper Remove if flow switch installed. RELAY 0-10VDC BK WTRD GN NU R- R+ OPTIONAL LIMIT TIMER CONTROL MODULE LTM C4AM BLEED FEED Wickman Fuse 5 Amp (#3741500041 or equiv) 115 VAC(V~) 100mA Slow Blow (T.
CTCII CHEMICAL TREATMENT CONTROLLER (COOLING TOWER CONTROLLER) QUICK REFERENCE GUIDE! If you read nothing else in this manual please read this Quick Reference Guide. PLEASE READ and COMPREHEND ALL WARNINGS, CAUTIONS and ADVISEMENTS CONTAINED WITHIN THIS MANUAL. Failure to comply is beyond the responsibility of the Myron L Company. WARNING: ALL CONTROLLERS ARE FACTORY SET TO OPERATE ON 115 VAC. BEFORE APPLYING POWER ENSURE THE INPUT POWER “115/230 VAC” SELECTION IS CORRECT FOR YOUR REQUIREMENTS.
CTCII 1000 0 2000 EC 5000 20 0 60 3000 120 4000 MICROSIEMENS / CM CTCII Basic Model 40 100 80 MINUTES 1
CTCII 1000 0 2000 EC 5000 20 0 60 3000 120 4000 MICROSIEMENS / CM CTCII w/ 3 1/2 Digit LCD 2 40 100 80 MINUTES
CTCII 1000 0 2000 EC 5000 20 0 40 60 3000 120 4000 MICROSIEMENS / CM CTCII w/ Feed Pump Limit Timer 100 80 MINUTES 3
CTCII 1000 0 2000 EC 5000 20 0 60 3000 120 4000 MICROSIEMENS / CM CTCII w/ 3 1/2 Digit LCD Feed Pump Limit Timer 4 40 100 80 MINUTES
TABLE OF CONTENTS SECTION I. II. III. IV. V. PAGE CTC Series II ILLUSTRATIONS (CTCII, CTCIID, CTCIIT & CTCIITD)......................................................................1-4 INTRODUCTION .................................................................................................................................................................. 7 A. SCOPE.......................................................................................................................................
TABLE OF CONTENTS Continued SECTION VI. VII. VIII. IX. X. XI. 6 PAGE OPTIONS & ACCESSORIES............................................................................................................................................... 23 A. OPTIONS ORDERED WITH CTCII....................................................................................................................... 23 B. OPTIONS & ACCESSORIES ORDERED SEPARATELY ...........................................................................
I. INTRODUCTION Thank you for selecting one of the Myron L Company’s latest Chemical Treatment Controllers. The CTCII is based on input from ‘you’ - our customers, time proven designs, and many years of instrumentation experience. Since 1957, the Myron L Company has been providing customers with quality products at an affordable price by designing and producing products that are Accurate, Reliable, and Simple to use. Quality you have come to rely and depend on.
REPEATABILITY 0.1% of span CALIBRATION CHECK Built in Electronic Calibration (EC) Mid scale 2500/2.50. WEIGHT CTCII: average 2 Ibs. (0.9 kg) C. OPTIONAL FEATURES -45 -35BL -24V -24VD -C4A -CS51R RECORDER OUTPUT 0-10 VDC @ 5 mA max. (linear); standard on all models OUTPUT IMPEDANCE 100Ω ±5% SENSOR INPUT 1 (sensor included) CONTROL FUNCTION ALL Models: Single set point alarm/control continuously adjustable 0-100% of span Hysteresis Adjustable from 0.
E. SENSORS 1. CONDUCTIVITY/TDS CTCII Conductivity/TDS Chemical Treatment Controllers come standard with the CSAR. The CSAR is of one piece molded construction with two 316 stainless steel pins (electrodes). Standard 3/4” NPT installation. It is rated for applications that do not exceed 75PSI@60°C. Other sensors for more demanding applications maybe substituted at an additional cost. All sensors include temperature sensor for automatic temperature compensation.
II. INSTALLATION A. GENERAL This section provides the recommended procedures for properly installing your CTC Series II Chemical Treatment Controller, and sensors. ! CAUTION - 1. SURFACE MOUNTING NOTE: Due to the many variables of installations mounting screws are not supplied. It is recommended that suitable #6 (M4) screws for the exact conditions be used, i.e. woodscrews, metal or sheetmetal. READ FOLLOWING CAREFULLY 1. 2. 3.
SENSOR INSERTION/IMMERSION MOUNTING D. The Sensor’s mounting orientation must provide a continuous and adequate circulation flow to prevent the trapping of air bubbles within the Sensor’s electrode area (CSAR shown in figure II.D.1). Failure to do so will result in conditions that may prevent the Sensor from functioning properly. The CSAR sensor is designed for insertion (in-line installation). The optional CS51R sensor may be ordered and installed as either insertion, or immersion (see figure II.D.2). 1.
1. 2. 3. 1. 115/230 VAC CONVERSION Before turning power on to the CTCII controller ensure the proper input voltage has been selected. Failure to do so will blow the fuse. It could, under some conditions, cause injury and damage the instrument voiding the warranty. Locate switch located next to the fuse holder. Using a screwdriver, turn switch to required voltage. 2. CONNECTING THE SENSOR CABLE If the sensor has been removed or requires replacement for any reason. 1.
E. 0-10 VDC RECORDER OUTPUT The 0-10 VDC output is designed to give the user the capability of sending a signal to a remote meter, recorder, PLC or SCADA system. 6. 7. 8. Requirements A hole of the proper size must be drilled in the enclosure. The user/installer must choose a location that will NOT interfere with normal operation. To ensure waterproof integrity, a watertight cable restraint must be used. Failure to do so or improper installation will void the warranty and may be costly to repair. 1. 2.
F. RE-SCALE YOUR CTCII CONTROLLER 1. DESCRIPTION The CTC Series II controller, has been designed for easy field rescaleability. To re-scale your 0-5000 µS CTCII to 0-5000 “PPM” TDS 442™ or visa versa requires the simple slide of a switch. ! CAUTION - READ FOLLOWING CAREFULLY WARNING: BEFORE STARTING, IF MONITOR/CONTROLLER IS INSTALLED, ENSURE THE POWER IS OFF. FAILURE TO DO SO COULD CAUSE DAMAGE TO THE INSTRUMENT, AND COULD BE HARMFUL OR FATAL TO PERSONNEL.
III. OPTIONS & ACCESSORIES A. LIMIT TIMER MODULE OPTION LTMO Limit Timer Module Kit ordered separately. 1. DESCRIPTION This module allows the user to set a “limit” of up to 120 minutes on the length of time the feed pump will operate. Specifications: Control Function: Controls the Feed Pump Relay only. 4. 5. 6. 7. 8. 9. B. C4A MODULE (4-20 mA OPTION) -C4A 4-20 mA Self/Remote-powered Isolated output module ordered with controller. 4-20 mA Self/Remote-powered Isolated output module ordered separately.
Specifications Self-Powered and Remote-Powered Drive Impedance — 0 to 600Ω Common Mode Maximum — 120 VAC @ 60 Hz Isolation — 100pf max. to Model 750II circuit common 100pf max. to input power line Calibration Two multi-turn pots — Factory Set. 4mA = Zero (0) 20mA = 12 mA - Mid Scale SO PO PI Calibration is NOT required. However, if you feel you must verify or recalibrate, see RECALIBRATION. (+) POWER IN + (-) POWER OUT (+) SIGNAL OUT + Self - Powered NC SO PO PI Figure III.B.
BLEED VALVE POWER PWR SET POINT HYSTERESIS RIGHT INC LEFT DEC RELAY C GD PWR FEED PUMP FLOW SWITCH C GDPWR C GD FS SENSOR Flow Switch Jumper Remove if flow switch installed. RELAY 0-10VDC BK WTRD GN NU R- R+ OPTIONAL LIMIT TIMER CONTROL MODULE LTM C4AM BLEED FEED Wickman Fuse 5 Amp (#3741500041 or equiv) 115 VAC(V~) HYST 100mA Slow Blow (T.
IV. OPERATING PROCEDURES A. FRONT PANEL INDICATORS & CONTROLS The front panel illustrations to the right and operational descriptions have been provided to assist the user in identifying and operating their CTCII controller. Refer to Section IV.B for Setup procedures and Section IV.B.1 for Check-Out procedures. CTCII 1000 0 2000 20 EC Controller with LCD Display 5000 40 60 3000 120 4000 100 MICROSIEMENS / CM CTCIID 1.
! B. CAUTION - READ FOLLOWING CAREFULLY SETUP PROCEDURES These Setup procedures cover (1) checking out your new CTCII Chemical Treatment Controller, (2) setting the control set point, and (3) adjusting the hysteresis. NOTE: A small screwdriver or tweaker will be required for some of the following operations. 1. CHECK-OUT PROCEDURES The following check-out procedures are used to verify that the CTCII Controller is operating properly. Refer to figure V.A.1.
V. COMPONENT IDENTIFICATION, CALIBRATION AND PREVENTIVE CARE A. PRIMARY COMPONENT IDENTIFICATION As identified in Section III, the CTCII Chemical Treatment Controllers main circuit board, controls and indicator lights are mounted directly to the front panel. Review figure V.A.1 below to familiarize yourself with the Main circuit board assembly. The following diagram has the optional Limit Timer Module and 4-20 mA Output Module installed.
! B. CAUTION - READ FOLLOWING CAREFULLY CALIBRATION PROCEDURES All Myron L CTCII Chemical Treatment Controllers are factory calibrated prior to shipping and are ready to install without further calibration. Calibration should be checked occasionally with the internal Electronic Calibration Test switch (EC) to ensure continued accuracy. The following procedures are provided in the event that recalibration becomes necessary.
3. TRANSFER STANDARD METHOD For maximum accuracy of any Monitor/controller, the transfer standard method should be utilized. Instead of removing the entire Monitor/controller and sensor, and either returning it to the manufacture or sending it to a third party laboratory for recertification, the transfer standard allows quick recertification and return to service — less down time.
VI. OPTIONS & ACCESSORIES A. OPTIONS ORDERED WITH CTCII CONTROLLER PART # DESCRIPTION -C4A -45 -35BL -51R 4-20mA Self-Powered Isolated Output Module (Digital & OEM Only) 4 1/2 Digit “Backlit” Liquid Crystal Display (LCD) 3 1/2 Digit “Backlit” Liquid Crystal Display (LCD) CS51R, 316 SS conductivity sensor w/ 10 ft/3mtr cable (sensor upgrade) SPECIAL ORDER OPTIONS -24V 24 VAC Isolated Power -24VD 24 VDC Isolated Power -SQC Quik-connect, sensor cable M/F * allow approximately three (3) weeks. B.
C. STANDARD SOLUTIONS & BUFFERS 1. CONDUCTIVITY/TDS STANDARD SOLUTIONS Your CTCII Chemical Treatment Controller has been factory certified to meet certain specifications based on the appropriate Myron L Company NIST traceable standard solution. This same solution is available to you. 442-3000 3900 µS/µM Conductivity and 3000 ppm TDS Other standard solutions are available to meet your needs or requirements.
VII. REPLACEMENT PARTS Contact the Myron L Company for the latest prices. PART # CONTROLLER MODEL For Timer Module see below CTCIICB CTCII Circuit Board Digital controller only CTCIIDCB CTCII Circuit Board Digital Monitor/controller For Timer Module see below. 24V 24VAC Isolated Power, add to above prices 24VD 24VDC Isolated Power, add to above prices If VOLTAGE is not specified, 115/230 VAC will be supplied.
VIII. WARRANTY Your Myron L Company CTCII Chemical Treatment Controller and sensor have a TWO-year limited warranty. If any controller or sensor fails to function normally, return the faulty unit to the factory prepaid. If, in the opinion of the factory, failure was due to materials or workmanship, repair or replacement will be made without charge. A reasonable service charge will be made for diagnosis or repairs due to normal wear, abuse or tampering.
IX. GLOSSARY 442™ An Internationally recognized “natural water” standard developed by the Myron L Company in 1964. Algorithm A procedure for solving a mathematical problem. See Addendum, Temperature Compensation and TDS Derivation. Anions Negatively charged ions DVM Digital Volt Meter Hysteresis Dead Band — related to alarm set point. The amount of delay or overlap between change from high to low or low to high.
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MYRON L COMPANY 2450 Impala Drive Carlsbad, CA 92008-7226 USA Tel: 760-438-2021 Fax: 760-931-9189 Made In USA www.myronl.
