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Bacharach H25-IR manual External Calibration Selection and Setup

Models: H25-IR

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3.1.2 External Calibration Selection and Setup

Calibration	H25-IR

3.1.2 External Calibration Selection and Setup

When using an external leak source, the instrument must be setup for external calibration along with entering the leak rate and gas type of the external leak source.

Select external calibration and enter the parameters of the external leak source as follows:

Select External Calibration: From the Calibration Data menu, use the Up and Down buttons to highlight “CAL TYPE”, and then press ENT to display its setup screen. Use the Up and Down buttons to highlight “EXTERNAL”, and press ENT to make the selection and return to the Calibration Data menu.

CAL TYPE	INTERNAL
	EXTERNAL

Enter External Leak Rate: From the Calibration Data menu, highlight “EXT RATE” and press ENT to display its setup screen. Use the Left and Right buttons to move the blinking 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 external leak rate value and return to the Calibration Data menu.

IMPORTANT! Be sure to enter the leak rate using the same units of measure as displayed on the EXT RATE screen. In this example, the units of measure is g/yr. If your leak source is marked in Oz/yr, then multiply that value by a factor of 28.35. For example: If the leak source is marked 0.9 Oz/yr, then enter a leak rate of (0.9 x 28.35=) 25.5 g/yr.

NOTE: The minimum calibration leak rate is 2 g/yr.

EXT RATE 25.5 g/yr

Enter External Gas Type: From the Calibration Data menu, highlight “EXT GAS TYPE” and press ENT to display its setup screen. Use the Up and Down buttons to highlight the type of gas contained in the external leak source. Press ENT to save the new external gas type and return to the Calibration Data menu.

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

EXT GAS TYPE < R134A R401A R402A < R402B

Press ESC as required to return to the Data Display screen.

22	Instruction 3015-4342

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Bacharach H25-IR manual External Calibration Selection and Setup

Contents

H25-IR Infrared Refrigerant Gas Leak DetectorOperation & Maintenance InstructionWARRANTY Register Your Warranty by Visiting2 Preparing for Operation Table of Contents1 Introduction 3 CalibrationSpecifications MaintenanceParts and Service Operation1.2.4 AC Power and Grounding 1.2 Safety Precautions1.2.3 Hazard Symbols 1 Introduction1.2.6 Working Inside the Instrument 1.2.9 Cleaning1.2.5 Explosive Atmosphere 1.2.7 Misuse and Modifications to InstrumentCode 1.3 Ordering Information1.4 Unpacking and Initial Checks Description1.5 Features and Capabilities 1.6 Functional Overview Leak Rate = Flow Rate x Gas ConcentrationFront Panel Buttons 1.7 Names and Functions of Components1.7.1 Front View Introduction 1.7.2 Rear View 1.7.3 InteriorH25-IR H25-IR 1.7.4 Standard ProbeIntroduction H25-IR 1.7.6 Smart Probe1.7.7 Smart Probe Keylock Function IntroductionH25-IR 1.8 Menu SystemIntroduction 2 Preparing for Operation 2.1 Connecting the Probe2.2 Connecting the AC Power Cord 2.3 Turning ON the Instrument2.4.2 Leak Units 2.4 System Setup2.4.1 Gas Type R134A1 = NOT USED 2.4.3 Relays2.4.4 4-20mA Loop CLOSE AT LOG LIMIT2.4.6 Clock 2.4.9 Reset Defaults2.4.5 Brightness 2.4.7 PCHK Mode2.5.2 Range 2.5 Configuring the SETUPS Function2.5.1 Setup Name 2.5.5 Setpoint 2.5.3 Gas Type2.5.4 Feedback Mode CONTINUOUS2.6 Calibration 2.5.6 Search Auto Zero2.7 External Relay Connections Typical Relay 1 Wiring2.8 4-40mA Current Loop Connection 4-20mA Current Loop ConnectorInstruction Preparing for OperationH25-IR 3.1.1 Internal Calibration Selection 3 Calibration3.1 Selecting Internal or External Calibration INTERNAL3.1.2 External Calibration Selection and Setup EXTERNAL3.2 Internal Calibration 0.890.00 Calibration 0.893.3 External Calibration H25-IRMaterial Required 3.4 CAL FactorProcedure Calibration H25-IR3.4.3 Adjusting the CAL Factor 3.5 Restoring Factory CalibrationInstruction CalibrationH25-IR 4.2.2 Initial Setup 4.2 Using the H25-IR4.2.1 Power 4 Operation4.2.3 Range Selection 4.2.4 Setup SelectionSETUP NO 4.2.5 Volume Adjustment 4.2.6 Searching for a Leak2.80SM MEASR1 4.2.7 Measuring the Leak Rate4.2.8 Measuring the PPM Level 38.0SM MEASR14.2.10.1 Viewing Logged Measurements 4.2.9 Logging Measured Readings4.2.10 Working with Logged Measurements Operation 4.2.10.4 Setting the Log Limit4.2.10.2 Clearing the Log H25-IR4.5 RS-232Communication 4.3 What to Do when a Fault Occurs4.4 What is PCHK? Diagnostics MenuInstruction OperationH25-IR 5.1.1 Sensor Data 5 Maintenance5.1 Diagnostics Menu Sensor Data Screen InformationH25-IR 5.1.2 Last FaultMaintenance 5.1.4 Pressure 5.2 Factory Menu5.1.3 IR Emitter 5.2.3 Leak Rate 5.2.1 Auto Gain5.2.2 DIGIPOT 5.2.4 Leak Gas5.2.7.1 Pressure Sensor Calibration Screen 5.2.6 Leak TEMPCO5.2.7 Sensor Cal PRESSURE5.2.9 Probe Type 5.2.7.3 Box Temperature Calibration Screen5.2.8 Model Select 5.2.10 FirmwareItems Required 5.3 Flashing MemoryProcedure Click OK Click Open 5.4 Part Replacement 5.4.1 Removing the Top Cover5.4.2 Fuse Replacement 5.4.3 Probe Tip Filter & O-RingReplacement5.4.4 Internal Filter Replacement 6 Parts and Service 6.1 Replacement PartsCanada 6.2 Service CentersUnited States MéxicoR600a 7 SpecificationsCFCs, HCFCs, HFCs and Halogens SF6Instruction SpecificationsH25-IR APPENDIX A - Factory Defaults Instruction Appendix AH25-IR H25-IR Appendix AHeadquarters 621 Hunt Valley Circle, New Kensington, PA