Digital 1000 calibration – Labconco XVS Ventilation Stations 4865060 User Manual

Page 41

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Chapter 6: Maintaining your XPert or XVS Enclosure

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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

Enclosure

Operating In

flow Speed

Low

Calibration

Set Point

High

Calibration

Set Point

40 - 50 fpm

60 fpm

40 - 60 fpm

100 – 120 fpm

60 - 70 fpm

80 fpm

50 - 90 fpm

100 – 150 fpm

80 – 90 fpm

100 fpm

50 – 110 fpm

100 – 170 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.

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