Waterproof total residual chlorine tester (9 pages)
Summary of Contents for Extech Instruments VFM200
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User Manual Formaldehyde (HCHO or CH 0) and Total Volatile Organic Compounds (TVOC) Tester Model VFM200 Additional User Manual Translations available at www.extech.com...
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Introduction Thank you for selecting the Extech Instruments Model VFM200. The VFM200 measures HCHO (formaldehyde) and TVOC (Total Volatile Organic Compounds). Potential sources for TVOCs include paints, finishes, adhesives, cigarette smoke, pesticides, personal care products, car exhaust, new furnishings, wall coverings, household cleansers, and cooking fuels.
ON-OFF button (also used in Alarm Setup) Up arrow and UNIT selection button Backlit Display TVOC sensor (rear) LCD Display HCHO reading TVOC reading Selectable units of measure Alarm Beeper symbol Auto Power OFF reminder Rechargeable Battery status High and Low Alarm symbols VFM200-en-US_V1.4 12/22...
Use the ▲ and ▼ buttons to adjust the low alarm threshold. Press the button to go to the high alarm setup screen. High Alarm Setup Use the ▲ and ▼ buttons to adjust the high alarm threshold. Press the button to return to the normal measurement mode. VFM200-en-US_V1.4 12/22...
CLEANING AND STORAGE Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. Please remove the battery if the meter is stored for a long period of time. VFM200-en-US_V1.4 12/22...
Battery Charge Time Approx. 3 hours with AC adapter Battery 7.4V 1300mAh (part # VPC-BATT) Dimensions 6.5 x 2.4 x 1.0 in. (165 x 60 x 25mm) Weight 20.6 oz. (584g) HCHO sensor Substance Cross Sensitivity (%) Ethanol Phenol VFM200-en-US_V1.4 12/22...
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