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SAFETY

Please read this information carefully prior to installing or using this equipment.

1. The unit described in this manual is designed to be operated only by trained personnel. Any adjust-
ments, maintenance and repair must be carried out as defined in this manual, by a person qualified to
be aware of the hazards involved.

2. It is essential that both operating 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 chemicals used.
Generally accepted laboratory procedures for safe handling of chemicals should be employed.

4. If it is suspected that safety protection has been impaired in any way, the unit must be made
inoperative and secured against any intended operation. The fault condition should immediately be
reported to the appropriate servicing authority.

350 550/REV A/03-03

Summary of Contents for 3505

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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