Bacharach H25-IR Operation & Maintenance Manual

Also see for H25-IR: Product catalog Specifications Instruction

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Bacharach H25-IR Operation & Maintenance Manual Manual pdf 38 page image

Operation H25-IR32 Instruction 3015-52864.2.7 Measuring the Leak RateAfter finding a leak, a measurement can be made to determine its leak rate as follows:1. Press the MODE button to display “MERS” at the bottom of the Data Display screen or “MEASR” on theSmart probe.2. Allow the instrument to sample fresh air. The gas reading must be “0.00” before proceeding. Ifnecessary, press the ZERO button to zero the reading while sampling fresh air.3. While observing the gas reading, hold the probe tip over the leak source until the reading stabilizes. Inthe examples below, a leak rate of 2.80 Oz/yr of R134a is being measured.Instrument Display Smart Probe Display4.2.8 Measuring the PPM LevelThe H25-IR can be used to measure a gas’s ppm level within a confined space, and display that level within therange of 0 to 1,000 ppm. Set up the instrument to measure ppm levels as follows:NOTE: Although the H25-IR can display ppm levels above its rated range of 0 to 999 ppm, the accuracy of thereading above 999 ppm is unspecified. Refer to Section 6Troubleshooting.1. Set up the instrument’s Leak Units to ppm as described in Section 2.4.2 Leak Unit.2. Press the MODE button to display “MERS” at the bottom of the Data Display screen or “MEASR” on theSmart probe.3. Allow the instrument to sample fresh air. The gas reading must be “00.0” before proceeding. Press theZERO button to zero the gas reading while sampling fresh air.4. Place the probe in the area to be measured. In the example below, 38.0 ppm of R134a is beingmeasured. Note that the display is auto ranging, causing the decimal point to turn off above 99.9 ppm.Instrument Display Smart Probe Display4.2.9 Logging Measured ReadingsThe H25-IR can log up to 50 measurements, which can then be viewed and analyzed at a later time. Eachlogged measurement is given a date & time stamp for identification. The measurements are stored in non-volatile memory, and will not be erased when the instrument is turned OFF.With the instrument in its Measure mode, press the LOG button to log the measurement that is currently beingdisplayed on the Data Display screen. Note that logged data is stored on a first-in, first-out basis. Once 50measurements have been stored, the newest stored measurement overwrites the oldest.NOTE: Only non-zero measurements will be logged.2.80 SMMEASR(1)Oz/yrR134ASETUPSM MERS38.0 SMMEASR(1)ppmR134ASETUPSM MERS