Bacharach H25-IR - Manual (Page 4)

Contents H25-IR
ii Instruction 3015-4342
3.4.1 Simulating Other Internal Leak Source Gas Types Using the CAL Factor..................25
3.4.2 Improving PPM Measurement Accuracy using the CAL Factor .....................................25
3.4.3 Adjusting the CAL Factor ..................................................................................................26
3.5 Restoring Factory Calibration..........................................................................................................27
3.6 Storing a New Factory Calibration ..................................................................................................27
4 Operation....................................................................................................................................29
4.1 Instrument Location .........................................................................................................................29
4.2 Using the H25-IR ..............................................................................................................................29
4.2.1 Power ...................................................................................................................................29
4.2.2 Initial Setup ........................................................................................................................29
4.2.3 Range Selection...................................................................................................................30
4.2.4 Setup Selection ...................................................................................................................30
4.2.5 Volume Adjustment............................................................................................................30
4.2.6 Searching for a Leak...........................................................................................................31
4.2.7 Measuring the Leak Rate...................................................................................................31
4.2.8 Measuring the PPM Level..................................................................................................32
4.2.9 Logging Measured Readings..............................................................................................32
4.2.10 Logged Measurements........................................................................................................33
4.2.10.1 Viewing Logged Measurements .....................................................................33
4.2.10.2 Clearing the Log..............................................................................................33
4.2.10.3 Viewing the Total of All Logged Measurements ...........................................33
4.2.10.4 Setting the Log Limit......................................................................................34
4.3 Fault Conditions................................................................................................................................34
4.4 PCHK (Atmospheric Pressure CHecK)............................................................................................35
4.5 RS-232 Communication ....................................................................................................................35
4.6 Serial Output Types ..........................................................................................................................35
5 Maintenance...............................................................................................................................37
5.1 Diagnostics Menu ..............................................................................................................................37
5.1.1 Sensor Data.........................................................................................................................37
5.1.2 Last Fault............................................................................................................................38
5.1.3 IR Emitter ...........................................................................................................................39
5.1.4 Pressure...............................................................................................................................39
5.1.5 Loop Test .............................................................................................................................39
5.1.6 Clear Last Fault..................................................................................................................39
5.1.7 Auto Gain ............................................................................................................................40
5.2 Factory Menu.....................................................................................................................................40
5.2.1 DIGIPOT .............................................................................................................................40
5.2.2 Leak Rate ............................................................................................................................40
5.2.3 Leak Gas..............................................................................................................................41
5.2.4 Leak Temp...........................................................................................................................41
5.2.5 Leak TEMPCO....................................................................................................................41
5.2.6 Sensor Cal ...........................................................................................................................41
5.2.6.1 Pressure Sensor Calibration Screen ..............................................................41
5.2.6.2 Flow Rate Sensor Calibration Screen (Factory Calibration)........................42
5.2.6.3 Box Temperature Calibration Screen ............................................................42
5.2.7 Model Select ........................................................................................................................42
5.2.8 Probe Type...........................................................................................................................43
5.2.9 Firmware.............................................................................................................................43
5.3 Flashing Memory...............................................................................................................................43
5.4 Part Replacement..............................................................................................................................46
5.4.1 Removing the Top Cover ....................................................................................................46
5.4.2 Fuse Replacement...............................................................................................................47
5.4.3 Probe Tip Filter & O-Ring Replacement ...........................................................................47
5.4.4 Internal Filter Replacement ..............................................................................................48
5.4.5 Optical Bench Replacement ...............................................................................................48
5.4.5.1 Top Cover Removal .........................................................................................49
5.4.5.2 Installing the New IR Optical Bench.............................................................49
5.4.5.3 IR Emitter Adjustment...................................................................................49