Manuals / Bacharach / Household Appliance / Carbon Monoxide Alarm

Bacharach H25-IR manual What to Do when a Fault Occurs, What is PCHK?, 4.5 RS-232Communication

Models: H25-IR

1 60

Download 60 pages 9.05 Kb

Page 39

4.3 What to Do when a Fault Occurs

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

35

Image 39

Bacharach H25-IR manual What to Do when a Fault Occurs, What is PCHK?, 4.5 RS-232Communication, Main Menu, Diagnostics Menu

Contents

Instruction Infrared Refrigerant Gas Leak DetectorOperation & Maintenance H25-IRRegister Your Warranty by Visiting WARRANTY3 Calibration Table of Contents1 Introduction 2 Preparing for OperationOperation MaintenanceParts and Service Specifications1 Introduction 1.2 Safety Precautions1.2.3 Hazard Symbols 1.2.4 AC Power and Grounding1.2.7 Misuse and Modifications to Instrument 1.2.9 Cleaning1.2.5 Explosive Atmosphere 1.2.6 Working Inside the InstrumentDescription 1.3 Ordering Information1.4 Unpacking and Initial Checks Code1.5 Features and Capabilities Leak Rate = Flow Rate x Gas Concentration 1.6 Functional Overview1.7 Names and Functions of Components 1.7.1 Front ViewFront Panel Buttons 1.7.2 Rear View 1.7.3 Interior H25-IRIntroduction 1.7.4 Standard Probe IntroductionH25-IR Introduction 1.7.6 Smart Probe1.7.7 Smart Probe Keylock Function H25-IR1.8 Menu System IntroductionH25-IR 2.3 Turning ON the Instrument 2.1 Connecting the Probe2.2 Connecting the AC Power Cord 2 Preparing for OperationR134A 2.4 System Setup2.4.1 Gas Type 2.4.2 Leak UnitsCLOSE AT LOG LIMIT 2.4.3 Relays2.4.4 4-20mA Loop 1 = NOT USED2.4.7 PCHK Mode 2.4.9 Reset Defaults2.4.5 Brightness 2.4.6 Clock2.5 Configuring the SETUPS Function 2.5.1 Setup Name2.5.2 Range CONTINUOUS 2.5.3 Gas Type2.5.4 Feedback Mode 2.5.5 Setpoint2.5.6 Search Auto Zero 2.6 CalibrationTypical Relay 1 Wiring 2.7 External Relay Connections4-20mA Current Loop Connector 2.8 4-40mA Current Loop ConnectionPreparing for Operation H25-IRInstruction INTERNAL 3 Calibration3.1 Selecting Internal or External Calibration 3.1.1 Internal Calibration SelectionEXTERNAL 3.1.2 External Calibration Selection and Setup0.89 0.003.2 Internal Calibration H25-IR 0.893.3 External Calibration Calibration3.4 CAL Factor ProcedureMaterial Required H25-IR Calibration3.5 Restoring Factory Calibration 3.4.3 Adjusting the CAL FactorCalibration H25-IRInstruction 4 Operation 4.2 Using the H25-IR4.2.1 Power 4.2.2 Initial Setup4.2.4 Setup Selection SETUP NO4.2.3 Range Selection 4.2.6 Searching for a Leak 4.2.5 Volume Adjustment38.0SM MEASR1 4.2.7 Measuring the Leak Rate4.2.8 Measuring the PPM Level 2.80SM MEASR14.2.9 Logging Measured Readings 4.2.10 Working with Logged Measurements4.2.10.1 Viewing Logged Measurements H25-IR 4.2.10.4 Setting the Log Limit4.2.10.2 Clearing the Log OperationDiagnostics Menu 4.3 What to Do when a Fault Occurs4.4 What is PCHK? 4.5 RS-232CommunicationOperation H25-IRInstruction Sensor Data Screen Information 5 Maintenance5.1 Diagnostics Menu 5.1.1 Sensor Data5.1.2 Last Fault MaintenanceH25-IR 5.2 Factory Menu 5.1.3 IR Emitter5.1.4 Pressure 5.2.4 Leak Gas 5.2.1 Auto Gain5.2.2 DIGIPOT 5.2.3 Leak RatePRESSURE 5.2.6 Leak TEMPCO5.2.7 Sensor Cal 5.2.7.1 Pressure Sensor Calibration Screen5.2.7.3 Box Temperature Calibration Screen 5.2.8 Model Select5.2.9 Probe Type 5.2.10 Firmware5.3 Flashing Memory ProcedureItems Required Click OK Click Open 5.4.1 Removing the Top Cover 5.4 Part Replacement5.4.3 Probe Tip Filter & O-RingReplacement 5.4.2 Fuse Replacement5.4.4 Internal Filter Replacement 6.1 Replacement Parts 6 Parts and ServiceMéxico 6.2 Service CentersUnited States CanadaSF6 7 SpecificationsCFCs, HCFCs, HFCs and Halogens R600aSpecifications H25-IRInstruction APPENDIX A - Factory Defaults Appendix A H25-IRInstruction Appendix A H25-IR621 Hunt Valley Circle, New Kensington, PA Headquarters