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EC Declaration of Conformity

Jenway Model 3505 pH/mV/Temperature Meter complies with the following European Standards:

EN 50081-1:1992 Electromagnetic compatibility - Generic emission standard

EN 50082-1:1992 Electromagnetic compatibility - Generic immunity standard (Performance criterion
B)

EN 61010-1:1993 Safety requirements for electrical equipment for measurement, control and laboratory
use

Following the provision of:

EMC Directive - 89/336/EEC and Low Voltage Directive - 73/23/EEC

Martyn J. Fall
Managing Director, Jenway,
Gransmore Green, Felsted, Dunmow,
Essex, CM6 3LB, England

350 550/REV A/03-03

Содержание 3505

Страница 1: ...350 550 REV A 03 03 Model 3505 pH mV Temperature Meter Operating Manual...

Страница 2: ...and service personnel employ a safe system of work in addition to the detailed instructions specified in this manual 3 References should always be made to the Health Safety data supplied with any chem...

Страница 3: ...rement 3 1 pH Measurement 3 2 Preparation of Buffer Solution 3 3 Solution Temperature Values 3 4 Good Practice Guidelines 3 5 pH Calibration Using Buffers 3 6 Performing Measurements 3 7 Section 4 Mai...

Страница 4: ...3505 has a liquid crystal display and is battery operated The use of an optional power supply permits the unit to be operated from the a c mains supply 1 2 Instrument Specifications Range Resolution 2...

Страница 5: ...ing plug 009 146 7 Battery PP3 8 Condensed operating instructions 350 551 9 Instruction manual 350 550 Any shortages or damage should be reported immediately to the Manufacturer or your local Distribu...

Страница 6: ...lance out the electrode offset between the pH measurement cell and reference This should be set with the electrode immersed in pH7 buffer This control adjusts the electrode effect between 60mV to 60mV...

Страница 7: ...ch allows combination pH or redox electrodes to be used 3 Temp Socket 8 pin mini DIN socket This allows the Automatic Temperature Compensation ATC probe 027 500 to be connected 4 Analog Out 2 x 4mm so...

Страница 8: ...ies These can be used as a guide to the pH colour level but can be limited in accuracy and difficult to interpret correctly in murky or coloured samples For greater accuracy the use of a high impedanc...

Страница 9: ...te and repeatable results it is essential to follow the manufacturers instructions carefully 3 4 Solution Temperature Values The value of all buffer solutions varies with solution temperature For accu...

Страница 10: ...gel filled electrodes are not refillable 5 DO NOT touch the sensitive glass pH membrane or reference junction during use Excess droplets of solution may be removed by gently blotting with filter paper...

Страница 11: ...he controls are interdependent 5 Rinse the electrode s in deionised water 6 Select pH on the Function switch When this position is selected the calibration settings are locked no further adjustment ca...

Страница 12: ...socket on the rear panel b Select C on the Function switch The display will show ATC probe temperature directly in C 3 Temperature Measurement Manual a If Manual temperature compensation is being use...

Страница 13: ...nd in the solution until clean Rinse and repeat as necessary Electrodes which have been allowed to dry out should be soaked overnight in warm distilled water Table of Cleaning Agents for Glass Electro...

Страница 14: ...died combination 12mm diameter For liquids 924 005 General purpose glass bodied combination 12mm diameter For liquids For a complete listing of all available electrodes please contact your local distr...

Страница 15: ...ted thermometer Slope Buffer controls 3505 incorrectly set Set Dial to pH Cal not working Battery symbol is displayed Battery running out Less than 8hrs lifetime left replace battery If the above does...

Страница 16: ...ture input check Remove the temperature probe and apply a 10Kohm resistor across the pins of the temp input as described in fig 7 2 1 Fig 6 2 1 Temperature input with connection detail 350 550 REV A 0...

Страница 17: ...dard EN 50082 1 1992 Electromagnetic compatibility Generic immunity standard Performance criterion B EN 61010 1 1993 Safety requirements for electrical equipment for measurement control and laboratory...

Страница 18: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...