How to Display and Maintain Tank Levels in Hazardous Areas
An Acromag Solutions Video Application Note
A chemical manufacturer has various tanks of substances which it combines to manufacture their product. The tops of these tanks are UL rated Class 1 Division 2 hazardous areas. Their sensors are four-wire, non-contact level. In addition, they want their operators to be able to read and adjust the tank levels either automatically or manually from ground level. The spot where this needs to be installed is in a UL rated Class 1 Division 1 Groups A, B, C & D hazardous area, and lastly, there is no power source available.
Click here to download How to Display and Maintain Tank Levels in a Hazardous Area.
Click on the AcroMaggie video below to learn how to display and maintain tank levels in hazardous areas.
Input loop-powered display, rated for Class 1 Division 1 hazardous areas. Settable solid state outputs for pump control would be an additional bonus.
Implementing a Wireless I/O Solution:
- VPM2212 panel meters have two lines of alphanumeric display in addition to being input loop-powered, requiring no local power.
- These panel meters are rated for operation in UL Class 1 Division 1 Groups A, B, C & D hazardous zones when installed with an intrinsically safe barrier.
- The VPM2212 comes with the option of two solid-state relay outputs. They can be set to automatically turn pumps on/off based on levels, as well as be set to alternate pumps each cycle.
- Operators can manually override pumps and turn them on/off from the pushbutton interface on the front panel at ground level.
Learn more about Acromag Panel Meters here.
VPM2212: Vertu® Panel Meter: digital display alarm, IS, loop-power with relays.
Why Acromag for this I/O Solution:
Now this customer can allow their operators to safely monitor/control tank levels, with all the features they needed, as a result of implementing the VPM2212. Other models are also available with current output or for non-hazardous locations. In addition, all the VPM2000 models are easy to configure with front-panel pushbuttons or the free Windows® based DisplayWizard™ software.