Table of Contents
Section 1
Introduction ................................................................. 1
Section 2
Inventory ...................................................................... 1
Section 3
Specifications .............................................................. 2
Section 4
Operation Basics ......................................................... 3
Digital Display .............................................................. 3
LED Indicators ............................................................. 3
Alarm Outputs ............................................................. 4
Section 5
Installation ................................................................... 4
Opening Unit ................................................................ 5
Enclosure Mounting .................................................... 5
Installing Vacuum Hose .............................................. 6
Installing Power/Alarms .............................................. 6
Section 6
Set Up and Calibration ................................................ 6
Delay Timer Adjustment ............................................. 6
Low Level Adjustment ................................................ 7
High Level Adjustment ............................................... 7
Alternate Method for Adjustment .............................. 7
Analog Output ............................................................. 8
Maintenance and Calibration ..................................... 8
Warranty Information .................................................. 9
Figure 1
Installation Diagram .................................................. 10
Figure 2
Enclosure Mounting .................................................. 11
VAS-4 O&M Manual, Revision 0, 01 July 2020
