Labconco Protector 3930000 User Manual page 51

Digital 1000 Calibration
1. Calibrate the airflow monitor according to the instruction manual
that comes with the kit. To successfully calibrate, it will be
necessary to change the face velocity by adjusting the airflow
exhaust volume. The exhaust volume can be adjusted with the
speed control on the FilterMate or by using an adjustable damper
on the exhaust blower. Typical calibration conditions are set at
face velocity air sample differences of at least 20 feet per minute.
The airflow monitor is factory set to be calibrated with a difference
of at least 50 fpm and can be changed by changing the
"lower/higher air sample difference". The following suggested in
flow face velocity speeds are recommended to successfully
calibrate. Typical low air alarms are set 10-20 fpm below
operational speeds. Follow Step 2 below and review the Labconco
1000 Alarm User's Manual that comes with the airflow monitor.
Low Air
Alarm
Set Point
40 - 50 fpm
60 - 70 fpm
80 – 90 fpm
2. Go to setup and then CAL CONFIG MENU and change the
"lower/higher air sample difference" to 20 fpm. This will allow you to
successfully calibrate with values of a minimum of 20 fpm difference.
3. While in CAL CONFIG MENU, change the "sensor difference" from
10% to 3%.
4. While in CAL CONFIG MENU, adjust the red low air alarm to the
desired setting such as 55 fpm. Then adjust the yellow "CAUTION
or WARNING" to 59 fpm. Then adjust the "CAUTION or
WARNING" air reset to 3 fpm. This sets the alarm condition.
5. To complete the CAL CONFIGURATION, be sure to enter "DONE".
6. To start the calibration mode, use the Labconco 1000 Manual and
enter "CALIBRATION" mode on the display from the SETUP menu.
7. Follow the instructions on the display and alter the low exhaust
volume with the speed control on the FilterMate or exhaust damper.
Measure the average face velocity and enter the low value on the
display. Be careful not to block the opening. The low exhaust
volume calibration will take about 5 seconds.
8. Now alter the high exhaust volume with the speed control on the
FilterMate or exhaust damper. Measure the average face velocity
and enter the high value on the display. The high value must be at
least 20 fpm greater than the low value. The high exhaust volume
calibration will take about 5 seconds.
Product Service 1-800-522-7658
Chapter 6: Maintaining Your Enclosure
Enclosure
Operating In Calibration
flow Speed Set Point
60 fpm 40 - 60 fpm
80 fpm 50 - 90 fpm
50 – 110 fpm
100 fpm
Low High
Calibration
Set Point
100 – 120 fpm
100 – 150 fpm
100 – 170 fpm
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