UQD(UQDZ Intelligent) Electric - 8 Pages

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Catalogue excerpts

UQD (UQDZ Intelligent) Electric Ball Float Liquid Level Transmitter Summary UQD series electrical ball-float level transmitters belong to the electrical type instruments, including measuring unit and signal transmitting unit. The meter can be classified into 90 ordinary type, 91 big rotating angle type, 92 external mounting type three types according to measuring unit structure. Also can it be classified into analog (UQD.A) type and intelligent (UQD.Z) type according to the signal transmitting unit. UQD.Z type transmitter not only can directly display local liquid level change, but also can it transmit 4-20mA analog signal on which digital signal being conformity with HART protocol is superimposed. All the transmitters’ head cases adopt modern fashionable case design and shape beautifully with all the working chambers separated. The meters are safe and reliable. They widely applies to measure various kinds of liquid level and transmit liquid level change signal, such as sticky, dirty, explosive, corrosive and other fluid. They are perfect instruments for liquid level measurement in production process in petroleum, chemical, metallurgy, power industry and light industries. Principle of Operation The measuring unit of UQD series electric ball-float liquid level transmitter includes floating ball, balance lever, balance weights ( these three elements comprise a torque balance device). The floating ball can float up and down freely with liquid level changing. When the liquid level change, the floating ball position changes correspondingly and drive the main shaft to rotate through the floating ball connecting rod. The angular displacement sensor in the case couples with the main shaft via a pair of gears. In this way, the changes of the liquid level can be converted into electric signal that will be turned into standard current signal in direct proportion by the electronic circuit in the case. Main Performances and Qualifications Performance and qualifications Analog Meter ( transmitter head) Intelligent Meter (transmitter head) Supplying voltage Output signal Precision class Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province, P.R. China Tel: +86-415-6227343 Fax: +86-415-6227341 Website: http://www.ddtop.com

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Structure and Installation Dimensions UQD.A-90 analog meter (head), UQD.Z-90 intelligent meter (head) ordinary type electric ball-float liquid level transmitter Design Features They are suitable for working environment (or container) in which the rod is needed to be long and the range is small. They have simple structure with installation easy and convenient. The angular rotating range (angular home range ) < 35°, when operating angle range is not less than 8D, signal 4-20mA can be output. Installation Dimensions J? Outlne sketch and Installation Dimensions of Ordinary Type Add: No.. 10 Huanghai...

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AnaJog Meter Inteliggent Meter UQD.A-90.UQD.Z-90 Common Type Outline UQD.A - 91 analog meter (head) type, UQD.Z - 91 intelligent meter (head) type big angle type electric ball-float liquid level transmitter Design Features In order to solve the problem that there is no way for the transmitter working in volume limited container to increase the measuring range by being extended the length of the ball connecting rod, our company developed and manufactured 91 type electric ball-float liquid level transmitter which maximum operating angle can reach 80". So we resolve the problem that using short rod...

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Here we remind our customer that the limit length of the ball connecting rod is 400mm. UQD.A-92 analog meter (head) type, UQD.Z- 92 intelligent meter (head) type external mounting type electric ball-float liquid level transmitter. Design Feature 92 external mounting type transmitter has the same measuring unit and transmission unit as 90 ordinary type transmitter. The difference is for external type transmitter adding a external measuring chamber (see the figure) that connects the fluid container through pipeline. So the fluid can flow into the external measuring chamber with same liquid level...

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Installation Dimensions Note: Flange A is, DN 40, DN.0 or DN6.3Mpa JB/TB82.2-94 raised face flange The support for the measuring chamber should be equipped by users themselves Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province, P.R. China Tel: +86-415-6227343 Fax: +86-415-6227341 Website: http://www.ddtop.com

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Model Selection Table Model Code meaning Electric ball-float liquid level transmitter A Analog meter (head) Intelligent meter (head) 90 Ordinary type External mounting type A Specially required flange standard and dimensions (please give the requirements in detail) Intrinsically safe Isolating explosion type T Flange material: Carbon steel Fluid temperature: -40 225 Fluid temperature: 225 450 Model selection example: UQD.A – 90B – iTG is ordinary type electric ball-float liquid level transmitter, analog meter (head), nominal pressure is 4.0MPa, nominal diameter is 250mm, intrinsically safe, flange...

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Load CharacteristicChart Order Notice 1. Select transmitter model correctly according to the model selection sheet. 2. Note the following parameter without hcing listed in the model selection sheet. Operating pressure: Special liquid contacting material brand Range and Length of Ball Connecting Rod L* — length of ball connecting rod (mm) (X — floating ball operating angle * — for UQD-91 big angle type electric ball-float liquid level transmitter, L includes the length of the arm that connects the ball connecting rod. Example: float ball operating angle is 35^ measuring range is 500mm, to evaluate...

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1600 UQD-92 External mounting type Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province, P.R. China Tel: +86-415-6227343 Fax: +86-415-6227341 Website: http://www.ddtop.com

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