elcometer 138 Bresle Salt Meter User Guide

elcometer 138 Bresle Salt Meter

OVERVIEW

Incorporating a flat sensor, the Elcometer 138 Bresle Salt Meter has been designed primarily for use in accordance with ISO 8502-6 ISo8502-9. It measures the conductivity of the sample but displays the surface density of salts. The measured conductivity is converted to the surface density of salts using the ISO Salt Mix IMO PSPC” equivalent NaCI conversion factors below, dependent on the measurement mode selected, based on an area of 12.5cm and a sample volume of 3ml. For detailed information on taking measurements in accordance with ISO 8502-6 /IS08502-9, please refer to the user guides for the Elcometer 138 Bresle Salt Kits.

BOX CONTENTS

• Elcometer 138 Bresle Salt Meter & Sensor
• Conditioning Solution; 14ml (0.47 fl oz)
• CR2032 Lithium Batteries; x2 (supplied fitted to the Elcometer 138)
• User Guide

Note: The Elcometer 138 Bresle Salt Meter measures aqueous solutions. The meter is NOT designed to measure solids, organic solvents, surfactants, oil, adhesives, alcohol, strong acids (pH: 0 to 2) or strong alkalis (pH: 12 to 14). The life of the sensor WIll De extremely short T these substances is measured. International Maritime Organisation, Performance Standard for Protective Coatings. Based on an area of 12.5cm and a volume of 3ml.

THE CONTROLS & DISPLAY
The Elcometer 138 Bresle Salt Meter is operated using 3 buttons and displays readings and other information on the LCD screen.

USING THE ELCOMETER 138 BRESLE SALT METER

• The sensor is a consumable part. If it becomes damaged or its performance deteriorates, it will need to be replaced see Section 8 Spares & Accessories on page en-12.
• Do not drop the meter.
• Never apply undue force when opening the meter (to change the batteries or sensor).
• Do not exert undue force on the sensor.
• Do not allow utensils (tweezers, pipette, etc) to touch sensor cell.
• Do not measure samples hotter than 40°C (105°F)
• Do not allow contact with solvents.
• Do not subject the meter to high temperature or humidity.
• Although the product is waterproof, avoid immersing it completely. If the meter is accidentally dropped in water, take it out and remove the moisture.
• To ensure the meter is waterproof check that the waterproof gasket is clean, not damaged, seated properly in the groove and is not twisted or warped.

FITTING AND REPLACING THE BATTERIES
The Elcometer 138 Bresle Salt Meter uses dry cell batteries only and is supplied with two CR2032 lithium batteries fitted with an isolation strip. Remove the isolation strip before first use.

To fit or replace the batteries:

•  Place batteries in the battery clips ensuring correct polarity.
• To reassemble the meter, slide the sensor onto the body of the meter and push the body and sensor together gently until sensor retaining clip engages.

USING THE ELCOMETER 138 BRESLE SALT METER (continued)
When the battery voltage becomes low, the low battery warning indicator will flash. Replace both batteries immediately. Note: Lithium batteries must be disposed of carefully to avoid environmental contamination. Please consult your local Environmental Authority for infomation on disposal in your region. Do not dispose of any batteries in fire.

ATTACHING & DETACHING THE SENSOR

Ensure the meter is turned OFF before attaching / detaching the sensor. If the meter is turned ON with the sensor detached, the battery alarm may illuminate. In this case, turn the meter OFF and attach the sensor, and then turn the meter ON again.

Attaching the sensor:

• Ensure that the waterproof gasket is clean and undamaged.
• Slide the sensor across the meter so the clip (A) fits into the hole on the sensor tongue (a), as shown.
• Note: Ensure that the waterproof gasket is lying flat and not twisted.

Detaching the sensor:

• Lift the sensor tongue tip and slide the sensor slightly away from the meter.
• The sensor can now be completely removed from the meter.
• When removing the sensor, do not let any water penetrate the inside of the meter.
• If some moisture remains on the waterproof gasket, very carefully wipe the moisture off.

The correct procedure for closing meter after removal of the sensor:
Ensure that the sensor tongue is outside the meter case. If the tongue is inserted between the case and the connector of the meter, it may damage the connector.

ELECTRODE SURFACE TREATMENT PROCEDURE

• When using the sensor for the first time or again after several weeks of disuse, perform the electrode surface treatment procedure as follows:
• Put some drops of the conditioning solution into the measurement cell.
• Leave for approximately 10 minutes.
• Clean the measurement cell with running water.
• Wash the measurement cell with standard solution.
• Perform the calibration procedure, see Section 4.5 on page en-8.

CALIBRATING THE ELCOMETER 138

• When using the sensor for the first time or again after several weeks of disuse, perform the electrode surface treatment procedure, see Section 4.4 on page en-7:
• Press the ON/OFF button to switch the meter on.
• Press the CAL button until CALappears on the display.
• Open the protective cover and place an appropriate amount of standard 84uS/cm solution, see Section 8′ Spares & Accessories on page en-12, into the measurement cell to avoid the inclusion of bubbles. washing the sensor with standard solution beforehand may provide more accurate calibration.
• Bubbles in the solution may cause the measurement to be inaccurate.
• Close the protection cover and press the CAL button for over 2 seconds. and flash and the calibration value is displayed. After calibration C is completed, CAL and stops flashing and illuminating steadily.
• If CAL continues to flash and the ‘Err (error message) is displayed, the calibration has tailed. Check that the standard solution conductivity Is correct and pertorm the calibration procedure again after thoroughly cleaning the sensor.
• If the calibration failed whilst using the correct standard solution, the sensor may be damaged and should be replaced, see Section 4.3 on page en-.
• Clean the sensor with tap water and remove moisture.
• Press the MEAS button for 0.5 seconds to enter the measurement mode and prepare for measurement.

TAKING A READING

The Elcometer 138 Bresle Salt Meter has been designed primarily for use in accordance with 1sO 8502-6 ISO8502-9. It measures the conductivity of the sample but displays the surface density of salts. The measured conductivity is converted to surface density of salts using the ISO Salt Mix or IMO PSPC equivalent NaCl conversion factors below, dependent on the measurement mode selected, based on an area of 12.5cm and a sample volume of 3ml. For detailed information on taking measurements in accordance with ISO 8502-6 /ISO8502-9, please refer to the user guides for the Elcometer 138 Bresle Salt Kits.

• Press the ON/OFF button to switch the meter on.
• Open the protection cover.
• Put 3ml of the sample into the measurement cell avoiding the inclusion of bubbles.
• Bubbles in the solution may cause the measurement to be inaccurate.
•  Close the protection cover.
• Ambient air may cause the measurement values to fluctuate.
• To reduce environmental interference, close the protection cover
• Read the value displayed when appears. illuminates when the measured value is stabilized.

AFTER MEASUREMENT

• Press the ON/OFF button to switch the meter off.
• Wash the sensor with tap water and wipe away any residual water using a clean tissue.
• Replace the sensor protection cap.
• Note: If the meter is to remain unused for a long period of time, use pure water instead of tap water to wash the senso.

CARE & MAINTENANCE

• The Elcometer 138 Bresle Salt Meter is designed to give many years reliable service under normal operating conditions.
• Prolonged periods of non-use may cause the sensor to dry out. This can result in malfunction or unstable readings. Pour conditioning solution into the sensor cell and leave for a few minutes to allow the sensor to become saturated. Wash the sensor with water prior to use.
• If the measuring surface of the sensor is contaminated or if air bubbles are regularly present in the sample, clean the sensor using a diluted neutral detergent (diluted 100 times).
• The Elcometer 138 Bresle Salt Meter incorporates a Liquid Crystal Display. If the display is heated above 50°C (120°F) it may be damaged. This can happen if the meter is left in a car parked in strong sunlight.
• The Elcometer 138 Bresle Salt Meter does not contain any user-serviceable components. In the unlikely event of a fault, the meter should be returned to your local Elcometer supplier or directly to Elcometer
• Limited contact details can be found on our website, www.elcometer.com. The warranty will be invalidated if the instrument has been opened.

TECHNICAL SPECIFICATION

SPARES & ACCESSORIES

Description
Replacement Sensor for Elcometer 138 Bresle Salt Meter Standard 84 S/cm Calibration Solution: 250ml 8.45fl oz) Bottle A Material Safety Data Sheet for the Elcometer 138 Standard 84uS/cm Calibration Solution is available to download via our website https://downloads.elcometer.com/MSDS/Elcometer_138_84uScm_Calibration_Solution.pdf

LEGAL NOTICES & REGULATORY INFORMATION

Declaration of Conformity: This product complies with the requirements of the following EU Directives:

• 2014/30/EU
• 2011/65/EU

The Declaration of Conformity is available to download via: https://downloads.elcometer.com/Declaration_ofConformity/English/DoC_138.pdf This product is Class B, Group 1 ISM equipment according to CISPR 11.
Class product: Suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which Supplies buildings used for domestic purposes. Group 1 ISM product: A product in which there is intentionally generated and/or used conductively coupled radio-frequency energy which is necessary for the internal functioning of the equipment itself.

United Kingdom

All other trademarks are acknowledged. Please ensure that all packaging is disposed of in an environmentally sensitive manner. Consult your local Environmental Authority for further guidance.

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