Instrumentation

thermocouple

thermocouple

It consists of two different types of metals, joined together at one end. When the junction of the two metals is heated or cooled, a voltage is created that can be correlated back to the temperature. A thermocouple is a simple, robust and cost-effective temperature sensor used in a wide range of temperature measurement processes.

industrial bimetal thermometer

Bimetal thermometers use two strips of different metals to convert temperature into mechanical displacement. … As purely mechanical devices, they display only the current temperature on their dial. They can be accurate to about 1% full span. Bimetallic thermometers are used in residential devices like air conditioners, ovens, and industrial devices like heaters, hot wires, refineries, etc. They are a simple, durable, and cost-efficient way of temperature measurement. Thermometer Capillary Tubes Can Be Prismatic and Round. A capillary tube is used in the thermometer to indicate the temperature scale. … When the temperature changes, the measuring liquid column moves up and down within the capillary hole. Usually the scale of the thermometer is located on the capillary tube. The thermometer capillary glass tube, also called thermometer glass tube, glass tube, glass capillary tube and thin glass tube, can be divided into prismatic and round type with white backed or yellow backed according to their shape.
industrial bimetal thermometer
temperature gauge

temperature gauge

Common methods of measuring temperature include bimetallic strip (the bending of which increases with temperature) and the thermocouple which produces an electronic voltage that depends on the temperature. Most experts agree that your engine should run between 195 degrees and 220 degrees. In ideal situations, your needle will maintain a posture right in the middle of your gauge.

Resistance sensor

The resistance increases as the temperature of the sensor increases. The resistance vs temperature relationship is well known and is repeatable over time. An RTD is a passive device. There are two main types of resistance temperature detectors, thin-film and wire-wound. Wire wound resistors: which are used in electronic equipments and instruments where high precision and more power dissipation are specified. Wire Wound Resistors are preferred over metal oxide resistors because of being better temperature co-efficient and of smaller size. Thin films: are used for protecting the surface of many material, especially optical elements, from wear, scratches, fingerprints, and even from corrosion.
Resistance sensor
temperature transmitter

temperature transmitter

HPE SimpliVity: SimpliVity was one of the companies focusing on hyperconverged infrastructure that HPE acquired almost three years ago. HP integrated the software and hardware of this product with the industry-leading servers and added it to a variety of HP servers. In hyperconverged systems, processing, storage and networking are integrated. One of the key features of HPE SimpliVity is its ease of use and integration with VMware. This HP server also supports a large number of data availability and disaster recovery features. Most HCIs outsource these tasks to third parties, but HPE SimpliVity itself has provided them.

thermowell

A thermowell serves as a protective barrier between a thermometer and the process media. Thermowells are often found in industrial process systems within refineries and petrochemical and chemical plants. In addition to protecting thermometers, thermowells provide easier serviceability and reduce operating costs
thermowell
Level gauge

Level gauge

The level measuring instruments are suitable to measure the level of gas or fluid and it could be done directly or indirectly which would be done according to the application. There are commonly 3 types of level gauges used: Reflex level gauge. Transparent level gauge. Magnetic type level gauge. Reflex type level gauges sturdily consist of a body with glass and cover tightened by U-bolts. They have a prism glass window that uses the basic optical principles of light refraction and reflection to enhance the indication of the liquid level. Transparent gauge consists of a body having machined to have a liquid chamber and one or more windows on both the sides of the gauge . On each window a transparent level glass is tightly pressed with sealing joints between the metallic covers and the body by means of Bolts and Nuts.

magnetic level gauge

the working principle behind a magnetic level indicator is that the measuring instrument shares the same fluid — and therefore, the same level — as the vessel. The level indicator is attached to the vessel and connects directly with the fluid to be measured. … As the fluid level rises or falls, so does the float. Magnetic level gauges use magnetism to link the indicator in a gauge to a float inside of a vessel in order to accurately show the level of fluid within.
magnetic level gauge
Level switch

Level switch

Conductivity level switches are sensors with an electrical contact output at a specific liquid level. Applications include ponds, reservoirs, sumps, pharmaceuticals, closed vessels and open tanks. Diaphragm level switches are sensors with an electrical contact output. An ultrasonic water level sensor reading a full-scale range of 144 inches will have an accuracy of ±0.36 inches (at ambient temperature). The same sensor reading a distance of 75 inches will have an accuracy of ±0.18 inches.

level transmitter

Level transmitters provide continuous level measurement over the range of the system rather than at a single point and produce an output signal that directly correlates to the level within a vessel. … The output signal generated can be used to display the depth or to actuate control functions.

Accuracy

Ultrasonic sensors use sound waves to detect the liquid level. These liquid level sensors can have a resolution as high as 0.1 in. (2.5mm) and an accuracy of 0.25% of the detected range.

level transmitter