Hawk CVM

Constant Vacuum Monitor

Vacuum leak testing is a principal leak test method for examining any sealed parts that could have leakage in their housings, casings, or attached lines. While the Hawk CVM can be installed in many applications, it was designed with the groundwater application in mind and, in particular, to check for leaks in the chlorine injection process.

The Hawk CVM (Constant Vacuum Monitor) provides the peace-of-mind that you are always supplying safe, clean water to your customers. The Hawk CVM connects into your SCADA network and will send you an alarm through a text or phone call if your chlorine tank is empty or your vacuum is too low.

The details:

• Industry standard 4-20mA output, corresponding to a vacuum of 0-29.6 inHg (0 to -14.5psi).
• All external parts are non-metallic to minimize corrosion in a strong oxidizer environment.
• The vacuum transducer is protected from direct contact with the process chemical by a food-grade barrier fluid.
• Many harsh gases can be measured with the CVM; including chlorine and sulfur dioxide.
• If vacuum level increases from normal range, this normally indicates that chlorine tank is empty, tubing is pinched, or regulator is defective.
• If vacuum level decreases from normal range, this normally indicates that chlorine tubing has cracked or that the injector is clogged.
• Can be connected to existing monitoring or automation systems with a simple 4-20mA input.
• Can be used without any existing monitoring system by connecting to a Hawk CVM Head Unit.