The high performance pressure transmitter model can be used to measure liquid, gas, or steam flow as well as liquid level, density and pressure. It outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure , This Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols..

1.Pressure Transmitters.
The high performance pressure transmitter model can be used to measure liquid, gas, or steam flow as well as liquid level, density and pressure. It outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure , This Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols.

2. Temperature Transmitters.
A temperature transmitter is a device used to sense a temperature and transmit an output representative of the sensed temperature. Process control transmitters are used to measure process parameters in a process control system. Temperature transmitters are used in controlling industrial processes by sensing a temperature of the process and transmitting the information to a remote location. A process temperature transmitter provides an output related to a sensed process substance temperature. The temperature transmitter output can be communicated over the loop to a control room, or the output can be communicated to another process device such that the process can be monitored and controlled.

3. Flow Transmitter.
There are many hundreds of types of flow meters depending on the make and application. They may be classified roughly as follows.

● Turbine rotor types.
Helical turbine meters are constructed similarly to conventional turbine meters. The basic elements are the same with exception given to the rotor or impeller shape and the measurement cartridge design. Basically all turbine meters consist of a body with flanged ends, a rotor or impeller assembly, a bearing assembly system and electrical system.
The body is used to house the measurement cartridge and is typically a carbon steel spool piece.
The body can be made from several other materials as deemed necessary to accommodate the measured fluid characteristics. The body also contains the electrical pick-up assembly used to transform the mechanical rotation of the impeller to electrical pulses as measured by the flow computer or local totalizer.

● ROTATING VANE TYPE
The jet of fluid spins around the rotating vane and the speed of the rotor is measured mechanically or
Electronically

● Magnetic Flow Transmitter.
A magnetic flow meter (mag flow meter) is a volumetric flow meter which does not have any moving parts and is ideal for wastewater applications or any dirty liquid which is conductive or water based. Magnetic flow meters will generally not work with hydrocarbons, distilled water and many non-aqueous solutions). Magnetic flow meters are also ideal for applications where low pressure drop and low maintenance are required.

● Ultrasonic Flow Transmitters.
The speed at which sound propagates in a fluid is dependent on the fluid's density. If the density is constant, however, one can use the time of ultrasonic passage (or reflection) to determine the velocity of a flowing fluid.Some manufacturers produce transducer systems that operate in the shear-mode, sending a single pulse and receiving a single pulse in return. Narrow-beam systems are commonly subject to walk-away (the signal completely missing the downstream transducer). Wide-beam systems overcome beam refraction and work better in changing liquid density and temperature. With the advent of digital signal processing, it has become possible to apply digital signal coding to the transmitted signal. This can eliminate many of the problems associated with noise and variations in liquid chemistry.

● Vortex Flow meters.
Consists of a vortex shedding velocity sensor, an RTD temperature sensor and a solid state pressure transducer to measure flow, pressure and temperature at the same location, providing greater accuracy in process measurement. Provides a cost effective solution with simple operation, for gas, liquid and steam applications.

● Coriolis Flow Meters.
The Coriolis Meter is one of the most versatile meters on the market. It is available in a wide range of sizes for measurement of liquids, gases and come in a wide range of sizes, and give accurate and reliable performance. It is one of the most versatile meters on the market.

● Mass Flow Meters.
Mass flow measurement is the basis of most recipe formulations, material balance determinations, and billing and custody transfer operations throughout industry. With these being the most critical flow measurements in a processing plant, the reliability and accuracy of mass flow detection is very important.

4. Level Transmitters.
● Ultrasonic Level Transmitters.
The non-contact ultrasonic flow meter is a non-invasive flow meter available in two formats: transit time and Doppler. Both technologies feature clamp on designs with transducer arrangements that can detect in-situ flow rates from outside the pipe work, without any interruption to flow or process. Transit time flow meters, or also known as 'time of flight' meters are mainly consigned to the measurement of clean liquids, although many flow measurement devices have a maximum tolerance of 5% solids. The principle behind this type of non-intrusive clamp-on (strap on) flow meter is that acoustic waves with a frequency of >20kHz are emitted from one transducer to the other side of the pipe back to the opposite transducer requires less time than when travelling in the opposite direction. The differential transit time of the synchronized signals is proportional to the flow rate of the fluid.

● Capacitance Level Transmitters.
Often called RF due to the radio frequency signals that are applied to the capacitance circuits, these type of sensors are excellent for measuring a wide range of liquids, slurries and solids. Capacitance level sensors can be used to measure media with dielectric constants between 1.1 and 90.Capacitance level sensors are rugged, contain no moving parts, are easy to clean and simple to use.
● Radar Level Transmitters.
Also known as microwave level sensors, radar level sensors are ideal for use in environments where temperature varies and in moist, dusty or vaporous environments. The microwaves are able to penetrate temperature and vapor layers that can be problematic for other types of water level sensor. Objects with high dielectric constants such as metal and conductive water will reflect microwaves. Conversely, media with low dielectric constants (glass, plastics, food stuffs, paper) will absorb the microwaves by varying degrees.
Radar water level sensors are ideal for use in a vacuum as the microwaves are electromagnetic energy and don't require air molecules to propagate.

● Diffrential Pressure Transmitters.
One of the primary principles underlying industrial level measurement is that different materials and different phases of the same material have different densities. This basic law of nature can be utilized to measure level via differential pressure (that at the bottom of the tank relative to that in the vapor space or to atmospheric pressure) or via a float or displacer that depends on the density differences between phases.