Bacharach 300 Instructions Manual

Contents

Bacharach 300 Instructions Manual Manual pdf 63 page image

MODEL 300 COMBUSTION ANALYZERInstruction 24-9223 5-15 MAINTENANCEThis section describes how to:• Remove the Sensor Cover• Replace the Oxygen Sensor• Replace the Toxic Sensors• Replace the Filter/Trap Filter Element• Clean the Gas-Sampling System• Perform a Leak Test• Replace the Printer Paper• Replace the Optional Bias Batteries• Configure the Analyzer Using its Optional Internal SwitchesMaintenance work, other than that noted above, should be performed byan authorized Bacharach Service Center. Any maintenance performed byan unauthorized service organization will void the instrument’s warrantyand release Bacharach, Inc. of any implied or written product liability.5.1 OXYGEN SENSOR REPLACEMENTEquipment Needed (See Section 6 for Part Numbers)• Replacement Oxygen Sensor • Scissors• Screwdriver, 3/16" BladeProcedureWARNING!Burn hazard. The oxygen sensor contains corrosive chemicals.DO NOT puncture or take the sensor apart.1. Remove sensor cover per Section 4.1.2. See Fig. 5-1. Using a small screwdriver, remove the two screws fromthe oxygen sensor flange, and then remove flange.3. Rotate oxygen cell counterclockwise until it is free of the four electricalcontacts on the oxygen cell base. Then remove and discard old sensor.Make sure O-Ring is still in Oxygen cell Base.