Setra Blog

In data centers, effective thermal management is critical to maintaining optimal operations, and two primary containment strategies are commonly used: hot aisle containment (HAC) and cold aisle containment (CAC). Both strategies aim to improve cooling efficiency by separating the hot and cold air streams, but they do so in different ways.

Enhancing Data Center Reliability with Setra's Industrial Pressure Sensors

Data centers are the backbone of the digital world, housing critical computer servers that require precise environmental control to function optimally. Worldwide there are well over 10,000 data centers, ranging from expansive hyperscale campuses, small to mid-sized enterprise facilities & colos, and prefabricated modular units, and that number is growing rapidly. As data center design engineers, owners, operators, construction firms, and BAS integrators, maintaining the integrity and performance of these environments is vital. 

Converting mA to voltage is common in HVAC when working with pressure transducers. Terminology to keep in mind includes:

• 1 mA = 0.001 AMP (short for amperes)
• Amps are referred to as CURRENT
• Resistor values are in OHMS (Ω is the symbol for ohms)
• VOLTAGE is the result of passing amps through a resistor

Tank level can be measured in a variety of ways, and each method has its advantages and drawbacks. One of the most common methods for tank level measurements is the hydrostatic method. Hydrostatic pressure is a cost-effective way to measure tank level that doesn’t rely on the measurement being taken directly at the tank, unlike many other methods.

The hydrostatic method uses simple physics to measure tank level. The hydrostatic pressure of a liquid is equal to the height of the liquid above the location of the pressure measurement. The table below demonstrates how certain pressure ranges equal the accuracy of the height measurement.

I²C stands for an integer-integrated circuit. This is a commonly used communication protocol that is flexible enough to be used for a wide variety of applications. Specifically, I²C is a serial communication method with bi-directional two-wire communication. Any sensors and secondary devices only communicate when asked to by the primary.

Pressure transducers all have some degree of variation in output caused by changes in temperature. The best way to compensate for such variation is to employ components on the PCBA that respond to temperature. These components can be fixed in value, adjustable like a potentiometer, or feed into a digital circuit.

A variety of pressure sensor designs are available today. Two of the most common sensor types are MEMS and capacitive sensors.

For referring to variable capacitive sensing technologies, four specific terms are commonly used: pressure transmitters, transducers, sensors, and switches. Capacitance is the detection and measurement of pressure by the change in voltage across a capacitor. The capacitance of sensing technology can be fixed or adjustable and varies dependent on the application. Capacitive sensing technology is highly precise, boasting accuracies of up to ± 0.07% of full scale. This pressure sensing technology is used for applications where a high degree of accuracy is crucial, such as engine test stands and pressure decay leak detection.

Thermal compensation is used to offset sensor performance when efficiency is impacted by fluctuations in temperature. Transducers used for precise testing and measurement applications, such as in engine test stands, undergo thermal compensation. Many transducers used in other critical applications may be thermally compensated. Thermally compensating sensors is crucial as temperature can have a significant impact on performance if not accounted for. This step in manufacturing counteracts the effects from changes in temperature that can influence the accuracy of a transducer's output. Thermal influence the accuracy of a transducer's output. Thermal compensation helps reduce the impact of temperature changes on sensitive components.

Many companies in today's world are working to help support the urgent need for ventilator manufacturing. For this application, Setra's two smallest pressure sensors can function for OEMs, our Models 210 and 263.