VMS-1655M
LIT-12013297
2
VMS-1655M Vortex Monitor
Fume Hood Name / Number
Unit Model Number and Serial Number (ESN)
Analog Output
Dead band percentage
Alarm Limits
Occupied Mode High Alarm Setpoint
Occupied Mode High Warning Setpoint
Occupied Mode Low Warning Setpoint
Occupied Mode Low Alarm Setpoint
Audible Alert
Operating Mode (audible or silent)
Delay Time Base (secs or mins)
Delay Setting (0 - 60)
The VMS-1655M has a 3.2 in. diagonal full-color touchscreen and displays in portrait orientation (240 pixels by 320 pixels). The
password-protected menu tree is intuitive and simplifies the setup and configuration of the unit. The menus incorporate touch-based
interfaces such as sliders, radio buttons, and dialog popup windows.
The display implements bright background color changes along with the 360° Safety Halo to indicate the three different hood statuses.
These background colors indicate
Normal
when the face velocity at the sash opening is within defined limits,
Warning
when it nears an
out-of-limits condition, and
Alarm
when the face velocity is outside defined acceptable limits. You can easily set the face velocity ranges
for these conditions for the specific installation when necessary. The 360° Safety Halo
color changes provide an at-a-glance view of the
fume hood face velocity conditions from anywhere in the lab.
You can define alarm conditions in terms of required face velocity settings for the monitored fume hood. When an alarm condition
occurs, it announces in three user-definable ways: 1) on the display, 2) the 360° Safety Halo, and 3) with an audible alarm. The alarm
automatically resets when the unit senses that the fume hood face velocity returns to correct limits. To mute the audible alarm, touch the
Alarm Audible button at the bottom of the touchscreen display.
The VMS-1655M provides an optional Analog Input that you can use to monitor the exhaust air flow of the fume hood that uses a third
party flow pressure sensor with a 0 VDC to 10 VDC output.
You can configure multi-level passwords to prevent the unauthorized or casual access to the VMS-1655M configuration settings. You
can store up to ten passwords of up to eight digits, each can have one of four associated access levels. Administrators and facility
management personnel may have unrestricted access, while you can assign restricted access passwords to general staff, which limit
the functionality of the user menus.
The VMS-1655M includes its own power supply, which connects to the system shown on page 6. The standard power supply includes a
universal 120/240 VAC-to-24 VAC isolation transformer enclosed within a 4x4 electrical box with a 1A slow blow fuse.
This power supply also provides power to the vortex sensor module which monitors the effective vortex in the fume hood. A 10-foot
length of 4-conductor cable is supplied with the VMS-1655M to interface the vortex sensor to the touchscreen display.
The VMS-1655M includes a vortex sensor to measure the vortex of the monitored fume hood. Install this sensor at the top of the
monitored fume hood. Tools required for the installation include: drill, 3/4 in. drill bit, 3/8 in. drill bit, 1/4 in. drill bit, 1/8 in. drill bit, #2
Phillips screwdriver, standard medium blade screwdriver, and silicone sealant.
An included interface cable pre-wired to the sensor module, connects it to the touchscreen display module.