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Related Manuals for Extech Instruments 407412
Summary of Contents for Extech Instruments 407412
- Page 1 User's Manual Hygro Thermo-Anemometer Model 407412...
- Page 2 WARRANTY EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six m onth limited warranty applies on sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 for authorization.
- Page 3 Probe head Data Hold button °C/°F Selection button Function switch Data Record button Probe Handles Data Recall button Units select button RS-232 output jack (rear) 10. Probe input socket Probe Plugs 11. Battery compartment Model 407412 May 2001 Rev. 1.6...
- Page 4 Press RECORD again to return the meter to normal operation. All stored data will be cleared and the REC/MIN/MAX icons will disappear from the LCD. Note that putting the meter into the Record mode defeats the Auto Power Off feature. Model 407412 May 2001 Rev. 1.6...
- Page 5 6. Place the probe in a 75% RH environment for a minimum of 30 minutes and adjust “R6 for a reading of 75.0% RH. 7. Verify that the temperature reading is within the published specifications. If not, perform calibration steps 2 and 3, above, again. Model 407412 May 2001 Rev. 1.6...
- Page 6 Extech recommends that calibration be performed on an annual basis to insure calibration integrity. Copyright © 2001 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
- Page 7 Area = W x H Circular Duct π Area = 2 (A=2x3.14xRxR) Cubic equations CFM (ft /min) = Air Velocity (ft/min) x Area (ft CMM (m /min) = Air Velocity (m/sec) x Area (m ) x 60 Model 407412 May 2001 Rev. 1.6...
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