The Keller Valueline high accuracy pressure transmitter provides outstanding performance in new or existing pressure measurement applications. The Valueline can be calibrated to any pressure range between 2 and 15,000 psi with excellent Total Error Band (TEB) accuracy. It also provides a choice of analog outputs (current or voltage), which simplifies installation and ensures compatibility with most SCADA and PLC systems.
The Valueline pressure transmitter has been certified by UL to NSF/ANSI 61 and 372 standards for use in drinking water, and it is UL/cUL IS-approved for hazardous location applications.
Valueline models equipped with 4 to 20mA analog output include guaranteed lightning protection at no additional cost. This feature protects the pressure transmitter from fast-rising transients and carries a lifetime guarantee against damage from electrical surge making it perfect for installation in areas prone to chronic damage due to transients caused by lightning.
This product can be used in the following applications:
The Background: Our customer is a packaging company that makes specialized products for OEM applications. They need a number of pressure transmitters for their production line.
The Problem: The customer’s greatest concern was getting a reliable product as quickly as possible.
The Solution: Keller Valueline high accuracy pressure transmitters are high quality, dependable instruments that generally promise fast (3 to 5 days) delivery. Valueline transmitters have become so popular with our customers that we are committed to stocking 40 units at a time for even faster availability.
The Background: Our customer is a processed food company that needs to replace pressure transmitters on packaging machines.
The Problem: The customer utilizes modified atmosphere packaging to preserve fresh foods. This technique replaces ambient air inside the packaging with a preservative gas mix to keep the food fresh for as long as possible. Different gases are used for different foods to create optimal conditions. Getting the proper amount of these gas mixtures into the packaging requires precision pressure measurement.
The Solution: We suggested the Keller Valueline high accuracy pressure transmitter which combines piezoresistive silicon sensor technology with Keller's state-of-the-art signal conditioning circuitry to make a very reliable transmitter with excellent Total Error Band (TEB) accuracy over a wide compensated temperature range. Keller’s very short lead time was also a key factor for the customer.
The Background: Our customer is a municipal public works department that is looking for a way to monitor the exhaust pressure of town vehicles that have been fitted with a urea injection system to bring down oxides of nitrogen.
The Problem: NOx emissions from diesel engines negatively impact both health and the environment. If a mixture of urea and deionized water is sprayed into the exhaust stream, it can reduce the NOx levels by up to 90%. The customer wanted to monitor the exhaust of town vehicles to make sure engine performance and longevity were not affected by this process.
The Solution: We suggested Keller Valueline pressure transmitters which offered a combination of quality, TEB accuracy and quick delivery that appealed to the customer. The customer purchased one unit to test which worked perfectly so they purchased four additional units.
The Background: Our customer is a municipal water district that is currently setting up a pumping station at one of their wells in order to sell water to a neighboring water district. They are seeking a pressure transmitter that will be installed inside the well.
The Problem: There is nothing currently installed at the well. The two water districts will work together to set-up a PLC system with a pressure transmitter to monitor the well. Because the well floods, they need a pressure transmitter with the proper IP rating to prevent issues with the electronics.
The Solution: We suggested the Keller Valueline high accuracy pressure transmitter, a very reliable transmitter with outstanding accuracy and an IP68 rating, which made this a great fit for the application.
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