Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Uživatelský manuál stáhnout pdf (Strana 16)

<3. Commissioning>

IM 12A01A02-12E 4th Edition : Sep. 3, 2013-00

4. Maintenance

n Periodic maintenance

TheFLXA21requiresverylittleperiodicmaintenance,excepttomakesurethefrontwindow

iskeptcleaninordertopermitaclearviewofthedisplayandallowproperoperationofthe

touchscreen. If the window becomes soiled, clean it using a soft damp cloth or soft tissue.

To deal with more stubborn stains, a neutral detergent may be used.

Whenyoumustopenthefrontcoverand/orglands,makesurethatthesealsarecleanand

correctlyttedwhentheunitisre-assembledinordertomaintainthehousing’sweatherproof

integrity against water and water vapor.

The pH measurement uses high impedance sensors and may otherwise be prone to problems

caused by exposure of the circuitry to condensation.

CAUTION

Never use harsh chemicals or solvents. In the event that the window does become heavily

stained or scratched, refer to the parts list for replacement part numbers.

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Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Uživatelský manuál Strana 16