Product Description
The 1151 differential pressure transmitter is a well - established and widely used instrument in the field of industrial process measurement and control. It has earned a reputation for its reliability, accuracy, and versatility, making it a staple in various industries around the world. This transmitter is designed to measure the difference in pressure between two points in a fluid system, which can be used to infer important process variables such as flow rate, liquid level, and density.
The core of the 1151 differential pressure transmitter lies in its pressure - sensing element. Typically, it uses a strain - gauge or a capacitive sensing technology.
In the case of strain - gauge sensors, a diaphragm is exposed to the differential pressure. When there is a pressure difference across the diaphragm, it deforms. This deformation causes a change in the resistance of the strain gauges attached to the diaphragm. The transmitter then measures this change in resistance and converts it into an electrical signal proportional to the differential pressure.
Capacitive sensors, on the other hand, consist of a diaphragm and fixed electrodes. The differential pressure causes the diaphragm to deflect, which in turn changes the capacitance between the diaphragm and the electrodes. The transmitter measures this change in capacitance and generates an output signal corresponding to the differential pressure.
Features
One of the most common applications of the 1151 differential pressure transmitter is in flow measurement. In a pipeline, a differential pressure is created across a flow - restricting element such as an orifice plate, a venturi tube, or a flow nozzle. The magnitude of this differential pressure is related to the square of the flow rate according to the Bernoulli's principle. The 1151 transmitter measures this differential pressure and provides an output signal that can be used to calculate and display the flow rate. This is crucial in industries such as oil and gas, chemical, and water treatment, where accurate flow measurement is essential for process control, inventory management, and billing purposes.
In tanks and vessels, the 1151 differential pressure transmitter can be used to measure the liquid level. The pressure at the bottom of a tank filled with liquid is proportional to the height of the liquid column and the density of the liquid. By measuring the differential pressure between the bottom and the top of the tank (taking into account the pressure of the gas above the liquid), the transmitter can accurately determine the liquid level. This is important in industries such as food and beverage, pharmaceuticals, and power generation, where precise liquid level control is necessary for safe and efficient operation.
High Accuracy
The 1151 differential pressure transmitter is known for its high - accuracy measurement. It can achieve an accuracy of up to ±0.25% of span, which ensures reliable and precise process control. This high accuracy is maintained over a wide range of operating conditions, including temperature and pressure variations.
Wide Rangeability
It offers a wide rangeability, which means it can measure a large range of differential pressures. This allows for flexibility in different applications. For example, it can be used in low - pressure applications such as measuring the pressure drop across a small - diameter pipeline or a filter, as well as in high - pressure applications in industrial pipelines with large flow rates.
Temperature Compensation
To ensure accurate measurement in varying temperature environments, the 1151 differential pressure transmitter is equipped with temperature compensation technology. The internal electronics adjust the output signal based on the temperature sensor readings, minimizing the effects of temperature changes on the measurement accuracy.
Robust Construction
The transmitter is built with a robust and durable housing that can withstand harsh industrial environments. The wetted parts are made of high - quality materials such as stainless steel or other corrosion - resistant alloys, ensuring long - term reliability and performance even in corrosive or abrasive fluid systems.
Electrical Isolation
The 1151 differential pressure transmitter provides electrical isolation between the input and output circuits. This helps to prevent electrical interference and ensures the safety of the connected control systems. It also allows for easy integration with different types of electrical equipment.
Product Parameters
Place of Origin |
Shandong, China |
Customized Support |
OEM, ODM |
Brand Name |
Rosemounte |
Model Number |
1151 |
Material |
316L |
Warranty |
1 Year |
Accuracy Grade |
0.2G |
Size |
25X25X30 cm |
Weight |
4.8kg |
Product Name |
Rosemounte 1151 Pressure Transmitter |
Selling Units |
Single item |
Single Package Size |
30X25X25 cm |
Structure Type |
Capacitive Pressure Transmitter |
Pressure range |
0.001MPa~35MPa |
Packaging & Shipping

Carton Boxes
Company Profile
KeRui (Weifang) Automation Equipment Co., Ltd.Specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply to specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.


FAQ
1.Q: How long is the delivery?
-- Mostly within 10days
2.Q:Can I get a sample?
-- Sure, contact our sales please
3.Q:What is your MOQ?
-- 1pcs
4.Q: How about warranty time?
-- 12month
5.Q: How can I visit your factory?
-- Fly to Qingdao air port, it's our pleasure to pick you up.
6.Q:How do you control your quality ?
-- We have EPR system .we control from parts, process, testing, packing ,retesting.
Every Sensor will be tested two times before reach you, after that sport test for the third time. Make sure about the quantity.