OPERATING INSTRUCTION MANUAL MS SERIES CONDUCTIVITY CELLS REV. 3.0 AquaMetrix Inc. 1245 Maple Hill Court, Unit 7 Newmarket, ON Canada, L3Y 9E8 Tel: (800) 742-1413 (905) 954-0841 Fax: (905) 954-0415 www.aquametrix.
TABLE OF CONTENTS 1.0 GENERAL INFORMATION ........................................................................................ 1 1.1 Introduction .................................................................................................................................................. 1 1.2 Cautions To Be Observed .......................................................................................................................... 1 2.0 SPECIFICATIONS ....................................
MS SERIES CONDUCTIVITY CELLS INSTRUCTION MANUAL 1.0 GENERAL INFORMATION 1.1 Introduction 1.1.1 1.2 This manual provides information on AquaMetrix Model MS Series flow-through and submersion sensors. Conductivity sensors have long been called cells. The two terms, cell and sensor, are used interchangeably in this manual. Cautions To Be Observed 1.2.1 Consult the factory before using sensor in extremely strong solvents such as ethylene dichloride.
2.0 SPECIFICATIONS CELL CONSTANTS: 0.01 to 50 SAFETY FEATURE: Shoulder on cells provides an integral safety stop THREADED SIZE: 3/4” NPT TEMPERATURE and PRESSURE: TEMPERATURE COMPENSATION: Automatic 0-120°C (32-248°F) Type Max. Press. (psi) Max. Temp. (°C) P 50 100 150 250 60 50 20 120 CABLE LENGTH: 4m (13ft) INSERTION LENGTH: Variable (see Section 4.1.
3.0 PRINCIPLE OF OPERATION 3.1 All solutions containing water conduct electricity to some extent. The ability of the solution to conduct electricity is called “conductance” (the reciprocal of resistance). Addition of electrolytes such as salts, acids, or bases to pure water will increase the ability of the liquid to conduct electricity and hence, increase the solution’s conductance (decreases the resistance). 3.
4.0 INSTALLATION 4.1 Installation of Flow-Through Sensors Refer to Dwg# N105-60 4.1.1 Flow-through sensors are secured with the supplied compression fitting. The insertion length is adjustable within the limits shown in DWG# N106-114. If your sensor has a cross hole it must be inserted far enough to be sure the cross hole is in the solution. Use thread sealant such as Teflon tape on the sensor and the mounting hardware threads. 4.1.2 Install a 3/4” NPT tee into the process line.
4.3 Electrical Connection The sensor is electrically connected directly to the instrument or indirectly with a junction box and interconnect cable. A suitable junction box with a terminal strip is available from AquaMetrix (Model JB-1). 4.3.1 Direct Hook-Up A. Route sensor cable to instrument. B. Connect sensor cable lead wires in accordance with instrument hook-up diagram.
5.0 6.0 CLEANING THE SENSOR 5.1 Wipe the electrodes end with a soft cloth and rinse with clean water. 5.2 Clean the sensor electrodes in a soap solution using a soft cloth, brush, Q-tip or pipe cleaner. If soap solution cleaning is unsuccessful, place the sensor electrode in 10% HCl (hydrochloric acid) for 1 to 5 minutes to remove the contaminants that are acid soluble. Acid clean only if absolutely necessary. Never use abrasive cleaners on the sensor or its electrodes. TROUBLESHOOTING AND SERVICE 6.
