Maintenance And Troubleshooting; Conditions Of Warranty; Maintenance - Mettler Toledo InPro 7000-VP Série Manuel D'utilisation

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4

Maintenance and troubleshooting

4.1

Conditions of warranty

METTLER TOLEDO guarantees the quality of materials and workmanship
within a narrow range of manufacturing tolerances, so that the product
purchased is free from any substantial deviations from material and
manufacturing quality standards. The warranty is valid for a period of one
year from date of delivery: If within this warranty period, any repair or
replacement should become necessary, and such cause is not due to
misuse or incorrect application, please return the sensor, freight pre-paid,
to your appropriate METTLER TOLEDO supplier. Repair work will be carried
out free of charge. Final decision on whether the defect is due to a manu-
facturing error or to incorrect operation of the sensor by the customer
is made at the option of the Customer Service department of METTLER
TOLEDO. After expiration of the warranty period, sensors will be repaired or
replaced on an exchange basis against payment of the costs involved.
4.2

Maintenance

Dirty or contaminated sensors can deliver incorrect measurement values.
If fouling is presumed, the sensor is to be removed from operation and the
electrodes as well as the insulation between the electrodes cleaned with
a soft cloth. Suitable cleaning solutions are mild detergents or diluted
acids (< 0.5 % by wt.) such as hydrochloric or nitric acid. Never use clea-
ning agents that are not compatible with the material to be cleaned.
When handling acids, precautionary measures are to be taken.
The sensor must be thoroughly flushed with distilled or deionized water
prior to re-installation.
Following cleaning and re-installation into the process, it can take from
several minutes up to several hours until the sensor delivers the originally
measured value.
InPro 7000-VP Series
52 002 091
© 07 / 12 Mettler-Toledo AG, CH - 8606 Greifensee
InPro 7000-VP Series
Printed in USA