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  ControlAir康气通产品 TYPE950XP防爆型电气转换器(I/P),电气比例减压器
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  The Type-950XP Explosion-proof I/P (current to pressure) transducer produces a pneumatic output that is directly proportional to a current input signal. A closed loop pressure feedback control system provides a highly accurate, stable air pressure output for the operation of actuated valves. The unit can mount in any position and is vibration insensitive. Its compact housing and easily accessible ports and adjustments make setup and installation of the unit simple. An integral volume booster provides high flow capacity, which increases control speed in critical applications. Features • Optional Field-Selectable Outputs Allows you to stock only one unit for all outputs • Approved for Natural Gas When purchased with option (E) • RFI/EMI Protected Eliminates susceptibility to electromagnetic intereference • Compact Size Installs where others won’t • Low Air/Gas Consumption 3.0 scfh at mid range Approved for Natural Gas Type 950XP Reliable performance and value in a compact, explosion-proof Now, there is a compact I/P transducer that delivers reliable high performance for the toughest applications in the most hazardous environments: the Type 950XP from ControlAir. The 950XP converts an electrical current signal to a stable, pneumatic output to actuate valves. Its NEMA 4X (IP65) housing is designed for both Intrinsically Safe and Explosion-Proof operation. Advanced circuitry includes electronic feedback control for superior vibration protection and highly accurate output. With flow rates up to 12 scfm (340 Nl/min), the 950XP has the muscle to drive large valves and actuators. It is very economical to operate, consuming only .05 scfm (1.42 Nl/min), which is especially important in natural gas applications. Its small footprint can fit into tight spots. An optional mounting kit lets you mount it directly on a valve, wall, panel, or 2” pipe. Optional field-selectable process output ranges reduce downtime and inventory. And since the 950XP is position insensitive, it provides even more freedom in mounting and connecting to valves and instruments. As a result of this flexibility, installation goes faster. Easy access Zero and Span adjustments make bench or field calibration quick and easy. For operating versatility, you may choose direct, reverse, and split range modes. A piezoelectric bimorph actuator and surface-mounted electronics are conveniently mounted on a removable control manifold that allows easy maintenance. The 950XP can be out-of-the-box and up-and-running quickly. Whether designing a new control system or upgrading an old one, the Type 950XP is the best unit for the job. It is a great combination of performance and value. Get in touch with ControlAir today and one of our application specialists will be happy to discuss your needs. Principles of Operation The Type-950XP utilizes a nozzle to control a pilot pressure to an integral volume booster. The resultant output pressure is measured by a pressure sensor, which in turn provides a feedback signal to the control circuitry. The feedback circuit compares this signal to the input signal and self corrects as necessary, thus minimizing the effects of vibration, position, temperature and supply pressure. The current signal flows to the piezo actuator causing it to bend toward the nozzle. This restricts the flow of air through the nozzle and creates back pressure in the pilot pressure chamber. This back pressure acts as a signal pressure which in turn controls the pressure at the output. Actuator and Control Electronics Pilot Pressure Input Pressure Output Pressure Inputs 4-20 mA Note: Extended periods of electrical input without supply air pressure may damage unit Outputs 3-15 psig 0.20-1.00 bar 3-27 psig 0.20-1.80 bar 6-30 psig 0.40-2.00 bar 0-33 psig 0-2.2 bar Air Consumption 3.0 scfh (1.5 Nl/min) at mid range Note: Multiply by 1.29 for Natural Gas Supply Pressure psig (bar) 3-15 (0.2-1.0), 3-27 (0.2-1.8), 6-30 (0.4-2.0): 100 psig (7.0 bar) maximum 0-33 (0-2.2): 70 psig (4.7 bar) maximum Note: Supply pressure must be a minimum of 5 psig above maximum output Flow Capacity 4.5 scfm (127 Nl/min) at 25 psig (1.7 bar) supply 12.0 scfm 340 Nl/min) at 100 psig (7.0 bar) supply Note: Multiply flow value by 1.29 for Natural Gas Temperature Limits Operating -40° to +158° F (-40° to +70° C) Storage -40° to +200° F (-40° to +93° C) Loop Load, I/P Transducer 9.5 VDC @ 20 mA (500 Ohms resistance) Operating Modes direct, reverse and split range (Split ranging not possible with field selectable option) Functional Specifications housing Physical Specifications Port Sizes Pneumatic 1/4” NPT Electric 1/2” NPT M20 x 1.5 (ATEX) Media Clean, dry, oil-free, air-filtered to 40 micron Sweet natural gas or methane when purchased with the (E) option. Mounting Direct wall, panel, or 2” pipe (optional) Materials Housing Chromate-treated aluminum with epoxy paint. NEMA 4X (IP65) Elastomers Buna-N Trim Stainless steel; brass; zinc-plated steel Weight 1.8 lbs (0.82 kg) 2.3 lbs (1.1 kg) with (E) option  
     
     

 

 

 

 

 

 
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