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UOP212 METHOD APPLICATION

SYSTEM

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PCmicrocomputer

Electronic interface

Potentiometer

ElectrodeSystem

(indicator/reference)

Sample

Gas lineWet Gas

MeterDreshelBottle

Dilutionglassware

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WHAT COULD LEAD TO WRONG RESULTS?

Battery Errors  Communication Errors  Custom Method Errors  Delay Time Errors  Dilution Errors  Dispense Errors  Drive Unit Errors  Method Errors  Priming Errors  Syringe Errors  Titration Errors 

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BATTERY ERRORBATTERY FAILURE

THE ENTIRE METHOD, OR PART OF THE METHOD(CALCULATOR) HAD BEEN LOST DUE TOBATTERY PRESERVING IT RUN OFF OR ISRUNNING LOW.

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COMMUNICATION ERROR The connection to the drive unit is Not as good as required

and/or The protocol and baud rate settings are Not correct.

The echo received from the drive unit was not correct. The drive unit responded to the last command with either

too little or too much data.  A serial I/O character was not received within the expected

amount of time.

 A physical serial I/O error occurred while attempting tosend a command to the drive unit.  An invalid response was received from the drive unit for the

last command sent.

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METHOD ERROR A titration method parameters cannot be set or copied

properly as a custom/user method.

 At least one operation must be specified in a custommethod to have the validity of operation. (cannot beempty)

Mechanical/Physical limitation: This method will not

operate as expected because more volume has beenaspirated or filled than will fit in the syringe.

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DELAY TIME ERROR Range : Delay time is out of range.

Resolution: Delay time resolution is not as per possible

configuration.

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DILUTION ERROR The dilution or ratio and a volume, or any 2 volume values

must be entered for a dilution method. The dilution specified cannot be achieved using the syringe

size(s) configured. Try one of the following: Use different dilution values. Use different sized syringes. Consult the user's manual to determine appropriate values.

 A dilution of one or a ratio of zero cannot be accomplished.

 A dilution greater than one or a ratio greater than zeromust be used.  A dilution cannot be performed when any of the dilution

 volumes is zero. Dilution volumes of greater than zeromust be used.

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