Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Summary of Contents for Myron L 750 Series
- Page 1 RESISTIVITY MONITORS Installation • Operation• Maintenance User Manual for Models 750 6115 Corte del Cedro Carlsbad, CA 92009-1516 USA Tel 760-438-2021 Fax 800-869-7668 / 760-931-9189 pH/Conductivity Instrumentation www.myronl.com Accuracy • Reliability • Simplicity...
-
Page 2: Table Of Contents
TABLE OF CONTENTS SECTION PAGE INTRODUCTION SCOPE ............................1 1.1.1 FUNCTIONAL DESCRIPTIONS ..................1 1.1.2 MONITOR APPLICATIONS .................... 1 MONITOR SPECIFICATIONS ..................... 1 RESISTIVITY CELLS ........................2 1.3.1 CELL PRODUCT SPECIFICATIONS ................2 OPTIONAL INTERFACE FEATURES ..................2 HOW TO ORDER ........................2 INSTALLATION GENERAL ............................ -
Page 3: Introduction
1.1 SCOPE 1.2 MONITOR SPECIFICATIONS This manual provides the necessary information to install, RANGES: operate and maintain the Myron L Company’s 750/760 Series 0-20 megohm-cm Resistivity Monitors. Sections 1 thru 3 provide the user with a 0-2 megohm-cm Monitor’s applicational description, mounting, wiring and 0-200 kilohm-cm operational procedures. -
Page 4: Resistivity Cells
1.3 RESISTIVITY CELLS 1.5 HOW TO ORDER All 750/760 Series Monitors use a CS10 Cell. These reliable EXAMPLE: sensors feature two integral thermistors to ensure accurate and rapid automatic temperature compensation. The sturdy polypropylene bushing is modular for easy, inexpensive replacement. -
Page 5: Installation
WARNING! monitor’s mounting location. 1 Select a site that limits the Monitor’s exposure to The Myron L Company recommends that all mounting and excessive moisture and corrosive fumes. electrical installation procedures be performed by trained and authorized personnel ONLY! Failure to do so could result in 2 For best results, position your control area as close as damage to equipment and/or property. -
Page 6: Surface Installation
NOTE: STEP 4 Slide the enclosure through the panel cutout until its flange contacts the panel. 750/760 Series Monitors are not designed to operate with Cell STEP 5 Insert mounting screws through the flange mounting cable lengths that exceed 100'(30 meters). holes and tightly secure. -
Page 7: Cell Installation
Since various devices (alarms, solenoid valves, etc.) controlled by your Myron L instrument can operate on different voltages, the power the relay is to control must be connected by you. Any common AC or DC voltage may be used, provided the current load does not exceed 10 amps. -
Page 8: 0-5/0-10 Vdc Recorder Board
2.4.2 0-5 / 0-10 VDC RECORDER BOARD 2.4.3 4-20 mA AND 420D TRANSMITTER BOARDS STEP 1 Place the user-supplied interface cable and water tight STEP 1 Place the user supplied cable and watertight cable cable restraint into the enclosure’s appropriate access restraint into the enclosure’s appropriate access hole. -
Page 9: Operating Procedures
SECTION 3 Operating Procedures 3.1 GENERAL This section provides the user with the 750/760 Series Monitor’s recommended operational checkout procedures. The illustrations contained in Section 3.2 have been provided to assist the user in identifying all standard and optionally available switch and indicator controls. -
Page 10: Operational Checkout Procedures
“3 RANGE” Full Scale Select Switch STEP 3 Rotate the Set Point adjustment knob back and forth and note the reading at which the lights change. Also A full scale range of 0-20 megohms is selected when note an audible click as the relay picks up and drops the switch is placed to its RANGE “X 1”... -
Page 11: Component Identification, Calibration And Preventive Maintenance
The 762 Monitor, when equipped with 3 Cell Input option and the 753 Monitor have a second Section 4.4 provides the user with the Myron L Company’s component board mounted on the back of the front panel. -
Page 12: Calibration Procedures
4.3 CALIBRATION PROCEDURES 4.3.2 FULL SCALE CALIBRATION PROCEDURES All 750/760 Series Monitors are calibrated and tested prior to The Calibration Module is configured for the specific range being shipment. calibrated. See Fig. 4-3 for proper Calibration Module. 4.3.2.1 MODEL 750 CAUTION! STEP 1 Turn “OFF”... -
Page 13: Internal Set Point Adjustment
4.3.3 INTERNAL SET POINT ADJUSTMENT 4.3.5 MODEL 753 WITH 4-20 mA OR 4-20D OPTION NOTE: NOTE: FOR 420D, PROCEED TO STEP 1. Because the Model 750 is equipped with a standard front panel CAUTION: FOR 4-20mA OPTION ONLY “SET POINT” adjustment knob, it does not require an internal The proper supply voltage (VDC Supply) and load resistance (R) Set Point adjustment setting. -
Page 14: Preventive Care
STEP 8 Reset the set point to the desired setting. Release the “SET POINT CHECK” switch. PREVENTIVE CARE Although designed to minimize operating problems, the Myron L Company recommends that the following Preventive Care procedures be observed. Try to prevent exposure to excessive heat and moisture. -
Page 15: Areplaceable Components Chart
753-3 Digital Display Assembly with 420D Option 533DPM4D 753 Panel Cable Assembly 53RCA 750 Series Enclosure 50EC 750 Series Front Panel with Label, Gasket & Screws 50FP* 762 Control Board 62RM 762 Panel Cable Assembly 62RCA 762 Range Select Cable with switch... - Page 16 WARRANTY All Myron L monitors and cells have a one year warranty. If any monitor or cell 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.
Need help?
Do you have a question about the 750 Series and is the answer not in the manual?
Questions and answers