Pneumatic actuators, electric actuators, hydraulic actuators, electric actuator drive mechanism, electrical - gas valve positioner and valve positioning device debugging, maintenance special tools YHS-717 / S Calibrator 
 YHS717 / S calibrator is 4-20MA current loop signal equipment (such as pneumatic actuators, electric actuators, hydraulic actuators, electric actuator drive mechanism, electrical - gas valve positioner and valve positioners, etc.) calibration, repair and maintenance of high-performance solutions. Rapid induction of new knob makes it quick and easy to use, long life. YHS-717 process calibrator batteries using environment-friendly high-capacity rechargeable lithium battery! Be power for a long time, operating costs can save a lot! 
 Shanghai Technology Development Co., Ltd. Shenzhen Industry 
 Contact: Zou Pengcheng 
 Mobile: 
 Phone: 

 YHS-717 process calibrator main features are: 
 ? Use of rapid induction knob can be operated with one hand; 
 ? MA power supply, simulation, and measurement; also shows the percentage of mA and range; 
 ? 0.02% accuracy and 0.001mA resolution; 
 ? Optional step and ramp output; 
 ? 24V loop power supply, the mA measure, including the HART 250Ω resistor; 
 ? 0-28 DC voltage measurement? Openings can not easily replace the battery; 
 YHS-717 process calibrator mA current output mode 
 Calibrator output current, there are two modes: 
 Source output mA (SOURCE mA) mode, this time calibrator to output current. 
 Analog output mA (SIMULATE mA) mode, then the calibrator can simulate an external power supply with two-wire transmitter. 
 YHS-717 process calibrator automatically ramp current output 
 Automatic ramp current output calibrator output can be a changing of the current applied to the continuous passive circuit (output) or active circuits (analog). You can free up both hands test transmitter response. Press to enter the auto ramp current output, and choose a slope type. Calibrator in the range of 0-20 mA or 4-20 mA type of space within one of the three slopes to impose or control of a continuous repetition of the mA signal: 
 Step Slope: 25% slope gradient steps, each step of the pause 5 seconds (4-8-12-16-20-16-12-8-4-8MA ... ...). 
 Slow slope: 40 seconds from 0% to 100% to 0% gentle slope (4 --- 20 ---- 4 --- 20 --- 4MA). 
 Fast Slope: 15 seconds from 0% to 100% to 0% quickly ramp (4 --- 20 ---- 4 --- 20 --- 4MA). 
 Manually pressing the rotary cap, current output in accordance with 1μA, 10μA, 100μA to adjust the resolution (the default value is 1μA). Turn the screw cap, current output increase or decrease 1μA/10μA/100μA. Pogue in the automatic ramp-and 25% of the step case, it'll screw cap, you can also change the current size of the change in direction. 
 YHS-717 specification process calibrator 
 DC mA (SOURCE / SIMULATE / MEASURE) 
 (Source output / simulation / measurement) 
 Range: 0 - +24 mA (milliamps); Resolution: 1uA (microamps); Accuracy: ± (0.02% of reading + 4 counts) 
 DC voltage (measured MEASURE V dc) 
 Range: 0 - +28 V (V); Resolution: 1mV (mV); Input impedance: 1MΩ (megohm) 
 Accuracy: ± (0.02% of reading + 4 counts) 
 Loop power supply (Loop Power): ≥ 24V (V) 
 YHS-717 process calibrator Special Offers 
 Promotion Time: December 31, 2010 only 
 Shenzhen Sea Technology Industry Development Co., Ltd. 
 Tel:, Contact: Zou Pengcheng Fax: 
 Web site: E-mail: zpc870921 @