digital conductivity meter model 1153 operation manual
Contents
1. depress the pressure sensitive switch MC Logo once Both the conductivity pS m and the temperature C and F will be displayed and retained until another test is performed 6 2 To initiate a test depress the pressure sensitive switch MC Logo once and then again when EMCEE is displayed The test will measure conductivity and the temperature of the sample and store the results in memory The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 6 of 11 DIGITAL CONDUCTIVITY METER 7 CHECK OPERATIONAL PERFORMANCE 7 1 Zero Check 7 1 1 With the probe out of the sample to be tested depress the pressure sensitive switch once and then again when EMCEE is displayed 7 1 2 The display will scroll through the test operation and the new conductivity data should read 0 The temperature of the environment will be displayed 7 1 3 If a number other than 0 is displayed this probably is an indication that the probe is contaminated and should be cleaned See Paragraph 9 Cleaning Procedures 7 2 Over Range Check Conductivity is greater than 2K pS m 7 2 1 Insert the probe into a sample of alcohol i2. meter 10 2 4 Insert the new batteries the TOOL is not required Assure that the polarity of the batteries is correct positive faces to the back of the meter which is the side opposite of the display See Fig 2 for battery location in meter 10 2 5 Replace the cap and secure it using the 2 screws 10 2 6 Check by depressing the pressure sensitive switch once to assure that the batteries corrected the problem If the display does not illuminate this may be an indication that the meter requires factory repair 11 PRECISION The electrical parameters of the meter are factory calibrated to 1 of reading However due to variations in product measurement characteristics the repeatability r and reproducibility R are as follows PS M r R The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 10 of 11 DIGITAL CONDUCTIVITY METER 1 1 1 15 6 8 20 7 9 30 9 11 50 13 16 70 15 19 100 19 24 PS M picosiemens per meter r Repeatability Maximum allowable difference between 2 successive measurements performed by the same operator using the same meter to t
3. probe should be cleaned with toluene or a mixture of heptane and isopropanol and air dried after use to ensure that ionic materials absorbed on the probe during previous tests will not contaminate the sample and give an erroneous result The probe can be disassembled by rotating the outer conductor counterclockwise Typically the probe is cleaned by rinsing it using alcohol followed by a toluene or with some of the sample to be tested Fig 6 Shows the Probe disassembled 9 2 If the cell is in contact with water and the instrument is switched on an immediate off scale reading will be obtained If the cell has been in contact with water it shall be thoroughly rinsed with cleaning solvent preferably isopropyl alcohol and dried with a stream of air 9 3 The meter may display a non zero reading caused by condensation forming on the cell when the meter is taken from a cool dry environment and subjected to hot humid conditions This condition can be avoided by storing the cell at a temperature 2 to 5 C in excess of the ambient temperature when practicable Figure 6 Probe Disassembled 10 BATTERY REPLACEMENT 10 1 The Model 1153 meter has an intemal battery check circuit If the batteries are weak the meter will tum on LOW BAT will be displayed and the meter will tum off and not allow a measurement to be performed If the batteries are too weak the meter will not tum on The information contained in the accompanying docu
4. D NEW DATA will be displayed 8 2 2 The red LED will stop blinking and remain on indicating that a test is in progress Hold the meter steady during the test period 8 2 3 A broken line will blink on and off three times 3 seconds during the test period 8 2 4 At the end of the test period the red LED will extinguish indicating that the test is complete and the measurements are stored in memory 8 2 5 NEW DATA PS M will be displayed 8 2 5 1 Value of measurement will be displayed Example 325 8 2 5 2 The temperature of the sample will be displayed as follows 8 2 5 2 1 Temperature in Degrees Centigrade Example 28 8C 8 2 5 2 2 Temperature in Degrees Fahrenheit Example 83 8F Note The new data pS m and temperature will replace the previous data and will be stored in memory until another test is performed It is recommended that the probe be rinsed with alcohol followed by toluene prior to performing another test or storing the meter The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 8 of 11 DIGITAL CONDUCTIVITY METER 9 CLEANING PROCEDURES 9 1 In normal use the
5. DEFINITION 3 1 picosiemens per meter pS m n the unit of electrical conductivity is also called a conductivity unit CU A siemen is the Standard Intemational SI definition of reciprocal ohm sometimes called mho 1pS m 1 X 10 12 ohms 1 1 CU 1 picomho m The Emcee Conductivity Meter displays electrical conductivity in picosiemens meter pS m or picosiemens centimeter pS cm 4 THEORY OF OPERATION The Emcee Conductivity Meter uses a probe consisting of two concentric stainless steel electrodes When the probe is immersed in fuel and the pressure sensitive switch is pressed twice a constant voltage is applied to the electrodes This results in an electrical current which is amplified and is shown on the meter display The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 4 of 11 DIGITAL CONDUCTIVITY METER 5 APPARATUS 5 1 The Emcee Model 1153 Conductivity Meter complete with probe is shown in Fig 1 5 2 The Meter is operated by a single pressure sensitive switch that is covered by and is directly beneath the Emcee green white logo as shown in Fig 1 The Switch is used to retrieve the sto
6. DIGITAL CONDUCTIVITY METER MODEL 1153 OPERATION MANUAL EMCEE ELECTRONICS INC 520 CYPRESS AVENUE VENICE FL 34285 941 485 1515 FAX 941 488 4648 The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE April 14 2008 Page 1 of 11 DIGITAL CONDUCTIVITY METER Specifications of the Emcee Model 1153 Digital Conductivity Meter Continuous Standard Electrical Conductivity Ranges from 0 to 2 000 picosiemens per meter pS m 0 to 20 000 picosiemens per meter pS m 0 to 2 000 picosiemens per centimeter pS cm 0 to 20 000 picosiemens per centimeter pS cm 0 to 100 000 picosiemens per centimeter pS cm One Pressure Sensitive Switch Operation Green White MC Logo Red LED Illuminates During Automatic Test Cycle 3 seconds Data Stored Non Volatile Until Next Test Cycle is Performed Alphanumeric Liquid Crystal Display LCD Conductivity Measured and Displayed in Whole Numbers pS m or pS cm Optional Embedded Temperature Sensor Available Text Presentation of Operational Status of Meter is Displayed Automatic Over Range OVER and Low Battery LOW BAT Indications Powered by Three Standard 3 volt
7. Lithium Cylindrical Cells Generic Code Panasonic CR 2016 Fuel and Water Resistant Approved as being Intrinsically Safe Listed in American Society of Test and Materials ASTM Standard Test Method D 2624 The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 2 of 11 DIGITAL CONDUCTIVITY METER TABLE OF CONTENTS Page No t 0 Scope iw Oe ea ed ee ee a ee ae A 2 0 Significance and Use 4 3 0 Definition 2 2 4 4 0 Theory of Operation 4 5 0 Apparatus 5 6 0 Operational Characteristics E Sle ve 16 7 0 Check Operational Performance 7 8 0 Test Procedure 8 9 0 Cleaning Procedures 9 10 0 Battery Replacement 10 11 0 Precision Il Service amp Warranty Policy See Emcee Electronics Inc Service and Warranty Manual The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics I
8. est the same sample R Reproducibility Maximum allowable difference between 2 measurements performed on the same sample by 2different operators using 2 different meters Precision is based on a Inter laboratory Test ILT Program conducted in November 2004 under the auspices of the American Society of Test and Materials ASTM Intemational Since the Program was conducted at room temperature 23 C 73 4 F the precision may vary at other temperatures The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 11 of 11
9. ment is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 9 of 11 DIGITAL CONDUCTIVITY METER Note The stored data will not be affected even if the batteries are replaced WARNING To prevent ignition of flammable or combustible atmospheres disconnect power before servicing WARNING To reduce the risk of ignition of a flammable or explosive atmosphere batteries must be changed only in a location known to be non hazardous Do not mix new batteries with used batteries or mix batteries from different manufactures Battery requirements 3 batteries Panasonic type CR 2016 10 2 When battery replacement is required using the TOOL See Fig 2 remove the two screws Allen head that secure the top cap of the meter to the body The screws are located on the lateral sides of the meter cap See Figs 1 and 4 10 2 1 Remove the cap Some degree of force will be required to overcome the drag caused by the O ring 10 2 2 The batteries 3 are located behind the printed circuit boards adjacent to the back of the meter Fig 2 Shows the location of the batteries in the meter 10 2 3 Remove the batteries using the TOOL See Fig 2 that was fumished with the
10. nc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 3 of 11 DIGITAL CONDUCTIVITY METER 1 SCOPE The Emcee Model 1153 Digital Conductivity Meter is a reliable convenient and inexpensive instrument for measuring the electrical conductivity of fuels and other products that have very low electrical conductivities The unit of measure is picosiemens per meter pS m commonly referred to as Conductivity Units CU The Meter incorporates all solid state components and is completely self contained 2 SIGNIFICANCE and USE The ability of a fuel to dissipate charge that has been generated during pumping and filtering operations is controlled by its electrical conductivity which depends upon its content of ion species If the conductivity is sufficiently high charges dissipate fast enough to prevent their accumulation thus decreasing the build up of dangerously high electrical potentials that could spark and cause a fire and or explosion This problem can be mitigated by increasing the electrical conductivity of the product by the addition of certain additives The Emcee Conductivity Meter is typically used to measure the conductivity before and after the addition of the additives If it is necessary to measure conductivities below 1 pS m for example in the case of clay treated fuels or refined hydrocarbon solvents the Emcee Model 1154 Precision Conductivity Meter listed in ASTM Test Method D 4308 should be used 3
11. red data and to initiate a test 5 3 The Meter is a portable hand held device that is battery powered As shown in Fig 2 the batteries can be accessed by removing the top cap on the Meter Fig 1 5 4 The TOOL shown in Fig 2 is used as an Allen wrench to remove the 2 screws that secure the cap to the Meter and to extract the batteries Allen Head Battery Removal Tool y seen Batteries MC Logo amp Sf Red LED Pressure Sensitive Switch Figure 1 Model 1153 Meter Figure 2 Batteries Cap and Tool The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 5 of 11 DIGITAL CONDUCTIVITY METER Male Banana Plug eRe 5 5 The probe Inserted in the sample that is o tested with the ground lead attached to the Meter f to the sample container is shown in Fig 3 The location of the female banana plug on the Meter the Allen screw is also shown in Fig 4 Jack Stainless Steel Beaker Figure 3 Test Set Up Figure 4 Female Banana Jack and Allen Screw 6 OPERATIONAL CHARACTERISTICS 6 1 To view the previous measurement that is stored in memory
12. sopropanol depress the pressure sensitive switch once and then again when EMCEE is displayed 7 2 2 At the end of the test period when the LED extinguishes the display will scroll through and in lieu of displaying a numerical value for the conductivity the display will read OVER thus indicating that the measurement is over range and the meter is operating properly Outer Conductor Inner Conductor Figure 5 Inner and Outer Conductors The information contained in the accompanying document is proprietary and confidential and may not be copied in any manner whatsoever without prior written consent of Emcee Electronics Inc The document and the material therein may not be used for any purpose other than that intended by Emcee Electronics Inc COPYRIGHT 2005 EMCEE ELECTRONICS INC REVISION DATE January 28 2008 Page 7 of 11 DIGITAL CONDUCTIVITY METER 8 0 TEST PROCEDURE CAUTION This device must be grounded before and after introduction of the probe into the tank and remain grounded until after complete withdrawal from the tank 8 1 To initiate a test depress the pressure sensitive switch once and then again when EMCEE is displayed The following will occur 8 1 1 The red LED located just above the pressure sensitive switch MC Logo will begin to blink indicating that the meter is in the ready mode to perform a test 8 2 Insert the probe into the sample up to and covering the four holes in the probe 8 2 1 REA
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