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HM 1400 TRX Total Mercury Analyser - Webshop, Gas Analysis ...

HM 1400 TRX Total Mercury Analyser - Webshop, Gas Analysis ...

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7. Operation7.4 Zero offset (automatic)Figure 7.7 The zero offset determination automaticAfter selecting zero offset (automatic) by pressing the key, allparameters required to control zero offset (automatic) appear in the display.• Interval describes the time period between two zero offsetmeasurements.• Duration describes how long you must wait for the measuring value tostabilise.• Average value (yes) performs an average value formation over the last2 minutes of a zero offset measurement.The time of the next zero offset measurement can be influenced by triggeringa purge process. As purging is in principle carried out during each zero offsetdetermination, zero offset and purge interval start at the same time.62 <strong>HM</strong> <strong>1400</strong> <strong>TRX</strong>

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