Bacharach H25-IR manual Feedback Mode, Setpoint

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Preparing for OperationH25-IR

2.5.3 Gas Type

GAS TYPE

<

R134A

 

SETUP NO. 1

 

R401A

 

 

 

R402A

 

 

< R402B

 

The GAS TYPE function sets the type of gas being monitored. Use the Up and Down buttons to highlight the desired gas. Press ENT to save the selection.

NOTE: The gases displayed depend on which optical bench is installed. Refer to Section “7 Specifications.”

2.5.4 Feedback Mode

FEEDBACK MODE

SETUP NO. 1

CONTINUOUS

SETPOINT

H25C SETPOINT

The FEEDBACK MODE function provides the operator both visual and audible feedback in regard to the measured leak rate. This function determines how the gas-level graphical display (bar graph located at the bottom of the display) and audible tone operate as follows:

CONTINUOUS – The bar graph and audible tone continuously increase and decrease their values in step with the leak rate. For example, when the leak rate increases, the bar graph moves upscale and the audible tone increases in frequency. Their maximum values at various leak rates are determined by the Range setting.

SETPOINT – Both the bar graph and audible tone go to their maximum values when the leak rate equals or goes above the setpoint. Enter a setpoint value per Section 2.5.5 Setpoint.

H25C SETPOINT – This setting emulates the operation of the H25C Industrial Halogen Leak Detector. The bar graph and audible tone are suppressed when the leak rate is below the setpoint. They both go to their 50% values when the leak rate reaches the setpoint, and then they both continuously increase in value as the leak rate increases until reaching their maximum values at 2-timesthe setpoint. Enter a setpoint value per Section 2.5.5 Setpoint.

Use the Up and Down buttons to highlight the desired function. Press ENT to save the selection.

2.5.5 Setpoint

SETPOINT SETUP NO. 1

00.0000 Oz/yr

The SETPOINT function establishes a leak rate at which the graphical display and audible tone are turned ON as determined by the Feedback Mode setting (refer to the previous section).

The setpoint value also sets the leak rate at which one or more of the instrument’s relays is energized whenever the leak rate equals, exceeds, or falls below the setpoint value (refer to Section 2.4.3 Relays), plus it establishes a reference point where the instrument’s auto-zero function can be turned OFF while in the Search mode (refer to Section 2.5.6 Search Auto Zero).

Use the Left and Right buttons to move the cursor across the screen to highlight the digit to be modified, and then use the Up and Down buttons to modify that digit. Press ENT to save the new setpoint.

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Instruction 3015-4342

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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 ClockRange Configuring the Setups FunctionSetup Name 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 Material Required ProcedureCAL Factor 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 LevelLog Menu Logging Measured ReadingsWorking with Logged Measurements Clearing the Log What to Do when a Fault Occurs What is PCHK?Diagnostics Menu RS-232 CommunicationOperation H25-IR Sensor Data MaintenanceDiagnostics Menu Last Fault Factory Menu IR EmitterPressure Factory Factory MenuAuto Gain Leak RateLeak Gas Leak TempLeak Tempco Sensor CalFirmware Model SelectProbe Type 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
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