Bacharach H25-IR manual What to Do when a Fault Occurs, What is PCHK?, RS-232 Communication

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H25-IR

Operation

 

 

4.3 What to Do when a Fault Occurs

When the instrument’s diagnostics detects that a fault has occurred, the word “FAULT” appears in place of the Gas Type, and an audible beep occurs every 2 seconds.

Oz/yr

FAULT

SETUP SM SRCH

Fault has occurred

The cause of the fault can be determined by viewing the Diagnostic menu’s Last Fault function. To display the Diagnostics menu, first press both the ENT and ESC buttons on either the instrument’s front panel or Smart probe at the same time to display the Main menu. Next, use the Up and Down buttons to highlight “DIAGNOSTICS” and then press ENT to display the Diagnostics menu.

Main Menu:

SYSTEM LOG SETUPS CAL DATA DIAGNOSTICS FACTORY

Diagnostics Menu:

SENSOR DATA

LAST FAULT

IR EMITTER

PRESSURE

Select “LAST FAULT” to display the Last Fault screen. Refer to Section 5.1.2 Last Fault for a listing of the type of faults that are tracked by the diagnostics, and for information on how to possibly correct the fault.

Once the cause of the fault has been corrected, the FAULT message and the audible beep are automatically turned OFF.

4.4 What is PCHK?

The instrument maintains its accuracy under varying atmospheric conditions by performing an atmospheric pressure check either once every hour, or immediately after calibration (refer to Section Error! Reference source not found. Error! Reference source not found.). When a PCHK is performed, the unit beeps once, the pump stops, a valve opens exposing the pressure sensor to the atmosphere, and “PCHK” appears at the bottom-right of the display. During this time the instrument measures the current atmospheric pressure, and then uses this value along with the current temperature and the ideal gas law to compute the gas level. When the pressure check is complete (approximately 5 seconds), the unit beeps, the valve closes, and the pump restarts.

Oz/yr

R134A

SETUP

PCHK

Pressure check being performed

4.5 RS-232 Communication

The RS-232 connector located on the rear of the instrument (refer to Section 1.7.2 Rear View) is used to flash the instrument’s memory. Refer to Section 5.3 Flashing Memory.

Instruction 3015-4342

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Contents Infrared Refrigerant Gas Leak Detector H25-IRRegister Your Warranty by Visiting WarrantyTable of Contents Parts and Service Introduction Safety PrecautionsHazard Symbols AC Power and GroundingMisuse and Modifications to Instrument Case of Malfunction CleaningExplosive Atmosphere Working Inside the InstrumentUnpacking and Initial Checks Ordering InformationFeatures and Capabilities Leak Rate = Flow Rate x Gas Concentration Functional OverviewFront View Names and Functions of ComponentsRear View Interior Standard Probe with LED and Programmable Pushbutton Standard ProbeSmart Probe Smart Probe Keylock Function System Menu Menu SystemTurning on the Instrument Connecting the ProbeConnecting the AC Power Cord Preparing for OperationLeak Units System SetupMain Menu System Setup Menu Gas Type4 4-20 mA Loop RelaysClock Pchk ModeReset Defaults BrightnessConfiguring the Setups Function Setup NameRange Setpoint Feedback ModeSearch Auto Zero CalibrationExternal Relay Connections Typical Relay 1 Wiring4-40 mA Current Loop Connection MA Current Loop ConnectorPreparing for Operation H25-IR Calibration Data Menu CalibrationSelecting Internal or External Calibration Internal Calibration SelectionExternal Calibration Selection and Setup Internal Calibration CALExternal Calibration Procedure CAL FactorMaterial Required Improving PPM Measurement Accuracy using the CAL Factor Restoring Factory Calibration Adjusting the CAL FactorCalibration H25-IR Operation Using the H25-IRPower Initial SetupRange Selection Setup SelectionSearching for a Leak Volume AdjustmentMeasuring the PPM Level Measuring the Leak RateLogging Measured Readings Working with Logged MeasurementsLog Menu Clearing the Log RS-232 Communication What to Do when a Fault OccursWhat is PCHK? Diagnostics MenuOperation H25-IR Maintenance Diagnostics MenuSensor Data Last Fault Factory Factory Menu Factory MenuIR Emitter PressureLeak Temp Auto GainLeak Rate Leak GasSensor Cal Leak TempcoModel Select Probe TypeFirmware Items Required Flashing MemorySelect Setup Communications Select File Load Flash Image Removing the Top Cover Part ReplacementProbe Tip Filter & O-Ring Replacement Fuse ReplacementInternal Filter Replacement Replacement Parts Parts and ServiceUnited States Service CentersCFCs, HCFCs, HFCs and Halogens SpecificationsSpecifications H25-IR Continuous Appendix a Factory DefaultsAppendix a H25-IR H25-IR Appendix a Headquarters Hunt Valley Circle, New Kensington, PA
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