Bacharach H25-IR manual Internal Filter Replacement

Page 52

Maintenance	H25-IR

5.4.4 Internal Filter Replacement

A filter located inside the instrument may become blocked due to dust or water being drawn into the instrument. A blocked filter is identified by a “Search Flow Fault,” “Measure Flow Fault,” or a “No Flow” fault occurring. Refer to Section 4.3 What to Do when a Fault Occurs.

Items Required:

•Replacement filter (P/N 3015-4415)

•Medium Phillips head screwdriver

Procedure:

1.Remove the instrument’s top cover as described in Section 5.4.1 Removing the Top Cover.

2.Remove the old filter by pulling off the tubing attached to the filter’s inlet and outlet ports.

3.Install the tubing removed in Step 2 onto the new filter.

4.Reassemble the instrument.

48	Instruction 3015-4342

Image 52

Contents H25-IR Infrared Refrigerant Gas Leak DetectorWarranty Register Your Warranty by VisitingTable of Contents Parts and Service Safety Precautions Hazard SymbolsAC Power and Grounding IntroductionCleaning Explosive AtmosphereWorking Inside the Instrument Misuse and Modifications to Instrument Case of MalfunctionOrdering Information Unpacking and Initial ChecksFeatures and Capabilities Functional Overview Leak Rate = Flow Rate x Gas ConcentrationNames and Functions of Components Front ViewRear View Interior Standard Probe Standard Probe with LED and Programmable PushbuttonSmart Probe Smart Probe Keylock Function Menu System System MenuConnecting the Probe Connecting the AC Power CordPreparing for Operation Turning on the InstrumentSystem Setup Main Menu System Setup MenuGas Type Leak UnitsRelays 4 4-20 mA LoopPchk Mode Reset DefaultsBrightness ClockSetup Name Configuring the Setups FunctionRange Feedback Mode SetpointCalibration Search Auto ZeroTypical Relay 1 Wiring External Relay ConnectionsMA Current Loop Connector 4-40 mA Current Loop ConnectionPreparing for Operation H25-IR Calibration Selecting Internal or External CalibrationInternal Calibration Selection Calibration Data MenuExternal Calibration Selection and Setup CAL Internal CalibrationExternal Calibration CAL Factor ProcedureMaterial Required Improving PPM Measurement Accuracy using the CAL Factor Adjusting the CAL Factor Restoring Factory CalibrationCalibration H25-IR Using the H25-IR PowerInitial Setup OperationSetup Selection Range SelectionVolume Adjustment Searching for a LeakMeasuring the Leak Rate Measuring the PPM LevelWorking with Logged Measurements Logging Measured ReadingsLog Menu Clearing the Log What to Do when a Fault Occurs What is PCHK?Diagnostics Menu RS-232 CommunicationOperation H25-IR Diagnostics Menu MaintenanceSensor Data Last Fault Factory Menu IR EmitterPressure Factory Factory MenuAuto Gain Leak RateLeak Gas Leak TempLeak Tempco Sensor CalProbe Type Model SelectFirmware Flashing Memory Items RequiredSelect Setup Communications Select File Load Flash Image Part Replacement Removing the Top CoverFuse Replacement Probe Tip Filter & O-Ring ReplacementInternal Filter Replacement Parts and Service Replacement PartsService Centers United StatesSpecifications CFCs, HCFCs, HFCs and HalogensSpecifications H25-IR Appendix a Factory Defaults ContinuousAppendix a H25-IR H25-IR Appendix a Headquarters Hunt Valley Circle, New Kensington, PA