Mettler Toledo Sanitary Conductivity/Resistivity Sensors Thornton Instruments Operating instructions

Brand: Mettler Toledo

Model: Sanitary Conductivity/Resistivity Sensors Thornton Instruments

Type: Operating instructions

Mettler Toledo Sanitary Conductivity/Resistivity Sensors Thornton Instruments provide accurate and reliable conductivity/resistivity measurements in a variety of sanitary applications. These sensors are designed for use in the food, beverage, pharmaceutical, and chemical industries. They are ideal for measuring the conductivity/resistivity of water, wastewater, and other liquids.

Mettler Toledo Sanitary Conductivity/Resistivity Sensors Thornton Instruments are available in a variety of configurations to meet the specific needs of your application. They can be mounted in pipes, tanks, or other vessels. The sensors are also available with a variety of options, including temperature compensation, remote mounting, and digital outputs.

THORNTON

Leading Pure Water Analytics

INSTALLATION INSTRUCTIONS

SANITARY CONDUCTIVITY / RESISTIVITY SENSORS

TYPICAL

NOT

INSTALLATIONS

READ THIS FIRST

RECOMMENDED

MOUNTING

OUTLET

INLET

84290F1

This is the ideal mounting position

This is the ideal

mounting position

The solution flow should be directed

into the end of the sensor and allowed

to pass out of the circulation holes of

the outer electrode.

The sensor should be mounted so the

cavity does not trap air or solids.

OUTLET

INLET

OUTLET

84290F3

AIR

SOLIDS

INLET

OUTLET

84290F2

Vertical mounting is possible, if the

pipe is full and air is not trapped

between the electrodes. The solution

must circulate inside the outer

electrode for accurate measurements.

INLET

OUTLET

84290F2

OUTLET

INLET

84290F4

Mount the sensor in a vertical pipe

with the flow direction up. Mettler-

Toledo Thornton does not recommend

mounting the sensor in a vertical pipe

with the flow direction down, because

air bubbles or air pockets will affect the

sensor measurement.

OUTLET

INLET

84290F5

Mettler-Toledo Thornton, Inc. Toll-Free: 800-510-PURE

36 Middlesex Turnpike Fax: 781-271-0214

Bedford, MA 01730 [email protected]

(781) 301-8600

www.thorntoninc.com OM84277 Rev. B 08/03

Cell Maintenance

Note: Contaminated cells can give inaccurate high or low readings, depending upon where the

contaminates are deposited. Both of the electrodes and the insulator surfaces must be

cleaned to ensure accurate readings.

If contamination is suspected, removed the cell from its fitting and clean the electrodes and

insulator. When cleaning, use a cotton swab saturated with a mild detergent or a very diluted

(0.5% or less) inorganic acid, i.e. HCl (Hydrochloric Acid), H

(Sulfuric Acid), HNO

(Nitric Acid). If cleaning with acid use standard acid handling safety procedures.

Clean:

1. The inner electrode.

2. The inner surface of the outer electrode.

3. The insulator.

84290F6

Rinse thoroughly with distilled or deoinized water before installation. Avoid touching the

cleaned surfaces because oil from your hands will recontaminate the cell.

DO NOT USE ABRASIVE MATERIALS such as steel wool or nylon scrubbers, these

may harm the electrode surface and could affect the accuracy.

Mettler Toledo Sanitary Conductivity/Resistivity Sensors Thornton Instruments Operating instructions

Mettler Toledo Sanitary Conductivity/Resistivity Sensors Thornton Instruments Operating instructions

Mettler Toledo Sanitary Conductivity/Resistivity Sensors Thornton Instruments Operating instructions

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