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9

WARRANTY

Drawell

warrants this product to be free from significant

deviations in material and workmanship for a period of 1 year

from date of purchase. If repair or adjustment is necessary and

has not been the result of abuse or misuse, within the year

period, please return-freight-prepaid and the correction of the

defect will be made free of charge. If you purchased the item

from our

Drawell

distributors and it is under warranty, please

contact them to notify us of the situation.

Drawell

Service

Department alone will determine if the product problem is due to

deviations or customer misuse.

Out-of-warranty products will be repaired on a charge basis.

RETURN OF ITEMS

Authorization must be obtained from one of our representatives

before returning items for any reason. When applying for

authorization, have the model and serial number handy,

including data regarding the reason for return. For your

protection, items must be carefully packed to prevent damage in

shipment and insured against possible damage or loss.

Drawell

will not be responsible for damage resulting from careless or

insufficient packing. A fee will be charged on all authorized

returns.

NOTE: Drawell

reserves the right to make improvements in

design, construction and appearance of our products without

notice.

Содержание Jenco Vision Plus EC331

Страница 1: ...Operation Manual MODEL EC331 Microcomputer Based Conductivity Resistivity Temperature Pocket Meter EC331...

Страница 2: ...ypad Operations 3 BEFORE YOUR FIRST USE 4 A Insert Batteries 4 B Soak the Electrode 4 C Preparing Standard Solutions 4 D Setup and Calibrate the Electrode and Meter 5 USING VISIONPLUS EC331 5 A Power...

Страница 3: ...materials should be saved until satisfactory operation is confirmed VISIONPLUS EC 331 OVERVIEW A Meter Description 1 Battery cover 2 LCD screen 3 Keypad 4 Electrode collar 5 Electrode ATC assembly Ele...

Страница 4: ...ments 2 Calibration Mode Calibration Mode is used to perform one point calibration 3 Hold Mode Hold Mode is used to display the locked reading for increased ease of use B Keypad Operations Key Operati...

Страница 5: ...is the 147 0uS standard solution the user can prepare to calibrate the probe of the model EC331 Standard solution of 147 0uS at 25 Accurately measure 100mL of the 1413uS conductivity standard solution...

Страница 6: ...ly in distilled water and immerse them in the standard solution of 147uS The temperature displayed is the solution temperature 2 Press Cal key to initiate calibration The CAL icon will appear when the...

Страница 7: ...led water for 10 minutes and recalibrate the EC331 following the instructions detailed in section USING VISIONPLUS EC331 REPLACE THE OLD BATTERIES Replace the battery when the blinking low battery ind...

Страница 8: ...ure Replace electrode ATC assembly OVER 60 0 99 5 C Measure Temperature 60 0 C over the temperature compensation range Bring solution to a lower temperature OVER 0 0 60 0 C Measure The conductivity va...

Страница 9: ...mperature Range Resolution Accuracy 0 0 to 99 5 C 32 to 212 F 0 5 C 1 F 0 5 C 1 F Conductivity Temperature compensation Temperature Coefficient Reference temperature AUTO 0 0 C to 60 0 C 1 91 C 25 C T...

Страница 10: ...product problem is due to deviations or customer misuse Out of warranty products will be repaired on a charge basis RETURN OF ITEMS Authorization must be obtained from one of our representatives befor...

Страница 11: ...Technology Limited Shanghai Drawell Scientific Instrument Co Ltd Add Suite 1506 Lane581 XiuChuan Rd PuDong New Area Shanghai China Tel 0086 21 50966080 Fax 0086 21 50966080 Web www drawell com cn Emai...

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