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The ultrasonic technology of the SITRANS clamp on flow meter provides highly accurate measurement of liquids and gases. With no pressure drop or energy loss, a wide turn-down ratio and no need to cut the pipe or stop the flow, installation is easy and maintenance is minimal.
The Siemens SITRANS LUT400 series controllers are compact, single point, long-range ultrasonic controllers for continuous level, or volume measurement of liquids, slurries, and solids, and high accuracy monitoring of open channel flow.
The preconfigured pump routines in the SITRANS LUT 400 allow you to choose the best pump control scenario for your application. In the video below, you will see how the assist pump routines work.
The SITRANS LUT 400 has three assists pump routines available:
Alternate duty assist
Service ratio duty assist
Fixed duty assist
The fixed duty assist routine mainly uses one pump to control the liquid level. In this example, pump 1 will always start before pump 2. When the liquid level reaches the pump 1 “on” set point, pump one will turn on. If the liquid level continues to rise while pump one is running, then pump 2 will start. Pump 2 will assist pump 1 to lower the liquid level. Both pumps we'll turn off when the liquid level reaches the “off” set point. This pump sequence is fixed. Pump 1 will always start first, then if necessary, pump 2 will assist pump 1.
The alternate duty assist routine rotates between both pumps to control the liquid level. Pump 1 will start first. If it cannot keep up with the inflow, then pump 2 will turn on and assist pump 1. Both pumps will run until the liquid level reaches the pump “off” set point. On the next cycle, pump 2 will be the first pump to start. Pump 1 will assist pump 2 if it is necessary. The starting pump will continue to alternate between pump 1 and pump 2 after each filling cycle.
The service ratio duty assist routine rotates between both pumps based on the defined service ratio. In this example the service ratio is split equally between both pumps. The SITRANS LUT will choose which pump starts first based on this ratio. Since pump 1 has the lowest runtime hours it starts first. Pump 2 will assist pump 1 if the level continues to increase. On the next cycle, pump 2 to will start first. Pump 1 will assist pump 2 if necessary. The service duty ratio assist routine will continue to maintain the runtime ratio for each filling cycle.
The video below explains the basics of programming the SITRANS F M electromagnetic flowmeter.
The SITRANS F M MAG 5000 & 6000 are microprocessor-based transmitters engineered for high performance, easy installation, commissioning and maintenance. These transmitters are truly robust, cost-effective and suitable for all-round applications. The MAG 5000 has a measuring accuracy of ± 0.4% of the flow rate (incl. sensor), while the MAG 6000 has a measuring accuracy of ± 0.2% of the flow rate and can be fitted with optional plug-in communication modules.
Other Members of the SITRANS F M MAG Family:
SITRANS F M MAG 1100 is a wafer design sensor in stainless steel with highly resistant liners and electrodes and is designed for the general industry environment. The flangeless wafer design meets all flange standards. The SITRANS F M MAG 1100 is used in all industries where the corrosion-resistant stainless steel housing and the highly resistant liner and electrodes fit even the most extreme process media.
The SITRANS F M MAG 1100 F sensor is especially designed for the food & beverage and pharmaceutical industries and is available with hygienic and flexible process connections. It meets all sanitary requirements and is 3A certified and EHEDG approved.
The SITRANS F M MAG 5100 W with its patented liners of hard rubber NBR or ebonite and EPDM is a sensor for all water applications such as ground water, drinking water, cooling water, waste water, sewage or sludge applications.
SITRANS F M MAG 3100 is an electromagnetic flow sensor with a large variety of liners, electrode material and with grounding electrodes as standard, all this ensures a perfect fit for almost every flow application.
Also, measuring electrodes which are capable of withstanding the most extreme processes and various liners are available.
The SITRANS F M MAG 3100 P sensor is designed to meet the most common specifications within the chemical and process industries. It has PTFE or PFA liners and Hastelloy electrodes being the ideal combination. The fully welded construction provides a ruggedness that fits almost every flow application.
The SITRANS F M MAG 6000 I and the SITRANS F M MAG 6000 I Ex de transmitters have an measuring accuracy of + 0.2% of the flow rate and are designed to meet the demands of the process industry. Both versions are based on a microprocessor with a built-in alphanumeric display.
