Gentek 3940421, 3940200, 3950320, 3950202, 3940320, 3940402, 3950222, 3940300, 3940322 Factory Settings

Chapter 6: Maintaining Your Filtered Enclosure

To start the calibration, use the Labconco 1000 Manual and enter the “CALIBRATIION” mode on the display. Follow the instructions on the display and alter the low and high exhaust volumes with the speed control. The following suggested inflow face velocity speeds are recommended to successfully calibrate. Typical low air alarms are set 10-30 fpm below operational speeds. Typical yellow cautions are set 3-10 fpm above the red low air alarm. Be sure to enter “Done” after completing the calibration in “SETUP.” Once completed, go to “RUN” and hit “ENTER.”

	Nominal Enclosure	Low	High
Low Air Alarm	Operating In Flow	Calibration	Calibration
Set Point	Speed	Set Point	Set Point
50 fpm	60 fpm	50-60 fpm	100-120 fpm
60-70 fpm	80 fpm	50-70 fpm	100-140 fpm
70-90 fpm	100 fpm	60-80 fpm	110-140 fpm
Factory Settings
60 ± 10 fpm	90 ± 10 fpm	60 ± 10 fpm	90 ± 10 fpm

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