Keller Valueline High Accuracy Pressure Transmitter
Starting at $330.00

Not in stock. Usually ships in 3-5 business days [?]

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Features

  • Accuracy includes non-linearity, hysteresis, & non-repeatability
    • ±0.1% (±0.05% optional) FS Static (25°C)
    • ±0.25% (±0.1% optional) FS Total Error Band (TEB)
  • 4-20mA includes guaranteed lightning protection
    • Lifetime warranty against voltage surges
  • Ranges available from 0 to 2 up to 15,000 PSI
  • 316L SS & Fluorocarbon wetted materials
  • IP68 environmental protection with cable
    • IP65 with connectors
  • 2-year warranty covers defects in materials & workmanship
  • Built in the USA (ARRA Section 1605 Compliant); CE certified

The Keller Valueline high accuracy pressure transmitter 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.

The ability of the Valueline to provide this level of sustained performance over a wide range of operating conditions makes it ideally suited to pressure monitoring applications such as tank level measurement, pump control, and VFD control.

Additionally, models equipped with 4-20mA 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.

Keller 1820-28-A3 External Surge Protector
Lightning/surge protection of power supplies, readouts, and PLCs
$112.00
Keller 900001.0002 Drying Tube Assembly
Attaches directly to cable vent tube and intercepts water vapor
$17.00
In Stock
Keller 900001.0034 Termination Enclosure
Allows for mounting a drying tube or bellows assembly
$240.00
Keller 900001.0009 Bellows Assembly
Aneroid bellows attaches to cable vent, alternative to the drying tube
$60.00
In Stock
AST A08670 Cooling Adapter
1/4in NPT female to 1/4in NPT male 316L SS cooling adapter for pressure sensors, reduces the temp by 100°F at ambient temp of 70°F
$208.33

Application Notes

Here's how some of our customers used this product.

Fast Delivery for OEM 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.

Modified Atmosphere Packaging

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.

Urea Injection System

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.

Well Pumping Station

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.