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«EMCEE ELECTRONICS, INC. 520 CYPRESS AVENUE VENICE, FL 34285 (941) 485-1515 FAX 941-488-4648 The information contained in the accompanying document is ...»

-- [ Page 1 ] --

DIGITAL CONDUCTIVITY METER

MODEL 1152 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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 1 of 19

DIGITAL CONDUCTIVITY METER

TABLE OF CONTENTS Page No.

1.0 Scope............................... 4

2.0 Significance.......................... 5

3.0 Definition............................ 5

4.0 Summary of Method.................... 5

5.0 Apparatus............................. 6

6.0 Preparation of Sample................... 7

7.0 Test Procedure........................ 8

8.0 Precision............................. 10

9.0 Battery Replacement................... 11

10.0 Calibration........................... 12 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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 2 of 19

DIGITAL CONDUCTIVITY METER

TABLE OF CONTENTS Page No.

11.0 Photographs Figure 1 1152 with Probe attached....... 13 Figure 2 Probe Calibration Number...... 14 Figure 3 Zero Check.................. 15 Figure 4 Calibration Check............. 16 Figure 5 Fuel Evaluation............... 17 Figure 6 Conductivity Meter with Cable Reel attached................. 18 Figure 7 Battery Replacement........... 19 Service & 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, Inc.

COPYRIGHT 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 3 of 19

DIGITAL CONDUCTIVITY METER

1.0 SCOPE The Emcee Conductivity Meter is a reliable, convenient and inexpensive instrument for measuring the electrical conductivity of fuels. The monitor incorporates all solid-state components and is completely self-contained. Several instruments are available for various ranges.

–  –  –

The instrument will display units between 0 and 1999. The conductivity is equal to the reading times the instrument multiplier and is reported in picosiemens/meter (pS/m). The instrument has a simple calibration and zero check; and indicates when the conductivity level exceeds the upper range of the meter by displaying 1--- on the LCD 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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 4 of 19

DIGITAL CONDUCTIVITY METER

2.0 SIGNIFICANCE Fuel products such as jet and diesel fuels which are loaded at high pumping rates, develop a static charge. The Emcee Conductivity Meter measures the ability of the fuel to dissipate that charge.

3.0 DEFINITION The Emcee Conductivity Meter reads conductivity in picosiemens/meter which are equivalent to CU or Conductivity Units.

4.0 SUMMARY OF METHOD The Emcee Conductivity Meter uses a probe consisting of two concentric stainless steel electrodes. When the probe is immersed in fuel, a constant voltage is applied to the electrodes. This results in an electrical current which is amplified and indicated on 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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 5 of 19

DIGITAL CONDUCTIVITY METER

5.0 APPARATUS

5.1 The Emcee Conductivity Meter with Fuel Probe is shown in Figure 1. The meter is a hand held, battery operated portable instrument.





5.2 The controls shown in Figure 1 consist of a measure switch and a calibrate switch.

5.3 Figure 2 shows the location of the probe calibration number.

5.4 Figure 3 shows the instrument zero check.

5.5 Figure 4 shows the instrument calibration check.

–  –  –

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 6 of 19

DIGITAL CONDUCTIVITY METER

5.7 The Accessory Cable Kit shown in Figure 6 includes a portable reel with a 50' cable. This kit enables the operator to connect the probe to the 50' cable for use in a large tank. The kit also is supplied with a grounding cable for attachment between the conductivity meter and tank ground.

6.0 PREPARATION OF SAMPLE The sample container (preferably a one liter metal container) should be cleaned with a solvent and rinsed with the fuel to be tested. After the sample for test has been withdrawn, wait approximately two minutes for charges in the fuel to dissipate.

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 7 of 19

DIGITAL CONDUCTIVITY METER

7.0 TEST PROCEDURE

7.1 Attach probe to bottom connector on conductivity meter.

7.2 Depress MEASURE switch (M) with probe OUT of fuel sample. Reading should be 000 +/- 001 in approximately 3 seconds (Figure 4). If reading is outside limits, remove probe and recheck zero by depressing MEASURE switch.

7.2.1 If zero adjustment is okay without probe but not when probe is attached, the probe should be thoroughly rinsed with isopropyl alcohol followed by reagent grade toluene and allowed to air dry before retesting for zero.

7.2.2 If the reading is outside of limits with the probe removed, perform calibration procedure outline in Section 10.0.

7.3 Depress CALIBRATE switch (C) with probe OUT of fuel sample. After 3 seconds, reading should be 10 times the probe calibration number +/- 005 (Figure 4).

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 8 of 19

DIGITAL CONDUCTIVITY METER

–  –  –

7.4 Insert probe in fuel to upper holes and depress MEASURE switch. Report displayed reading times multiplier after 3 seconds for stabilization. (Due to the polarization of the fuel sample the apparent reading will continue to change. Only the reading 3 seconds after depressing the MEASURE switch is correct).

Note: If a “1” is displayed on the left side of the display, the conductivity level exceeds the upper range of 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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 9 of 19

DIGITAL CONDUCTIVITY METER

8.0 PRECISION The electrical parameters are factory calibrated to 1% of reading. However, due to fuel measurement characteristics, the repeatability and reproducibility limits are

as follows:

–  –  –

50 4 12 100 6 18 150 8 23 200 9 27 250 10 30 300 11 34 400 5% 10% Limits Applicable at Room Temperature only.

Precision based on ASTM Round Robin test of standard 0 - 2,000 pS/m 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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 10 of 19

DIGITAL CONDUCTIVITY METER

9.0 BATTERY REPLACEMENT

9.1 The Model 1152 Conductivity has an internal battery checking circuit. If batteries are weak the meter will read for a short time and shut itself off. If batteries are too low the unit will not turn on.

9.2 When battery replacement is indicated remove the 4 screws holding the back plate exposing the battery housing at the top of the meter.

9.3 Remove the 2 screws on the battery housing and set the housing cover to one side (Figure 7).

9.4 Observe the polarity markings and insert three new batteries as shown in Fig. 7.

Battery replacement must be (3) 6 volt Alkaline Neda 1414A (A-544). Any other battery replacement will invalidate the Intrinsically Safe Rating.

9.5 Replace back panel and check zero and calibration.

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 11 of 19

DIGITAL CONDUCTIVITY METER

10.0 CALIBRATION

10.1 If either ZERO or CALIBRATE is outside the limits listed in 7.2 or 7.3 the following steps should be completed.

–  –  –

10.3 Insert a small screwdriver into the hole marked ZERO while depressing the MEASURE switch. Adjust the control until the display reads 000 +/- 001.

10.4 While depressing the CALIBRATE switch, insert a small screwdriver into the CALIBRATE hole and adjust for 10 times the probe calibration number +/- 002.

10.5 Attach the probe and depress the MEASURE switch. The reading should be 000 +/- 001. If zero adjustment is okay without probe but not when probe is attached the probe should be thoroughly rinsed with isopropyl alcohol followed by reagent grade toluene and allowed to air dry before retesting for zero.

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 12 of 19

DIGITAL CONDUCTIVITY METER

Figure 1

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 13 of 19

DIGITAL CONDUCTIVITY METER

Figure 2

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 14 of 19

DIGITAL CONDUCTIVITY METER

Figure 3

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 1984 EMCEE ELECTRONICS, INC.

REVISION DATE: OCTOBER 3, 2001 Page 15 of 19

DIGITAL CONDUCTIVITY METER

Figure 4



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