Teledyne OT-2 operating instructions Scrubber Replacement

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Model OT-2 System

Maintenance 4

 

 

 

 

 

 

4.Place the new cell on the cap with the sensing surface face down and the gold contact rings up.

5.Position the cell and cap so that the cell is inside the cell block. Press up on the cap and rotate. Tighten the cap screws.

4.2.1Cell Warranty

The cell warranty is sensor specific. Please contact Teledyne Electronic Technologies/ Analytical Instruments on explicit war- ranty on sensors.

NOTE: Evidence of damage due to tampering or mishandling will render the cell warranty null and void.

4.3Scrubber Replacement

To ensure proper operation of the OT-2 System, it is recom- mended to replace the scrubber every 6 months or more fre- quently if the sensor is reaching end of life prematurely.

It is important that the replacement of the scrubber be com- pleted within one hour of it's removal to prevent back diffusion of oxygen from the atmosphere to the sensor.

During scrubber replacement, it is recommended that the 3- way valve is switched to "Span Gas". This will minimize the system recovery time.

NOTE: If the sensor is exposed to air through back diffusion, from the atmosphere it may cause the sensor to re-stabilize slowly.

4.4Filter Servicing

To ensure the proper performance and sample flow, it is recommended that the sample filter be inspected when the cell is replaced. The filter requires both a 1" and a 11/16" open end wrench to remove the filter bowl. Turn off the sample flow valve prior to servicing filter. The filter should be cleaned or replaced as required.

Teledyne Analytical Instruments

4-3

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Contents Model OT-2 Oxygen Transmitter System Copyright 1999 Teledyne Analytical Instruments Model OT-2 SystemTable of Contents Ground Model OT-2 System Introduction Introduction Model OT-2 System Front View Introduction Model OT-2 System Introduction Model OT-2 System Operational TheoryMicro-Fuel Cell Sensor Principles of Operation Operational Theory Model OT-2 SystemCross Section of a Micro-Fuel Cell not to scale Electrochemical Reactions Model OT-2 System Operational Theory Characteristic Input/Output Curve for a Micro-Fuel Cell Electronics and Signal Processing Sample Flow Description See Figure Piping Layout Operational Theory Model OT-2 System Model OT-2 System Operation InstallationMounting Details Operation Model OT-2 SystemGas Connections Operation Model OT-2 System Front View of Transmitter Calibration Operation Model OT-2 System Installing the Micro-Fuel CellSample System Component Locations Span Gas % F.S. x 4 + = Output in VDC 100 3 H2S Scrubber Testing the SystemOperation Model OT-2 System Model OT-2 System Maintenance Model OT-2 System Scrubber Replacement Maintenance Model OT-2 System Appendix Qty Part Number Description Section I Product Identification Section III Physical Hazards Section V Emergency and First Aid Procedures Appendix