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Summary of Contents for Sino Instruments HS703
- Page 1 User manual Pneumatic Comparator HS703...
- Page 2 Claim The operating instructions are parts of the products and must be kept in the immediate vicinity of the instrument and readily accessible to skilled personnel at any time. Skilled personnel must have carefully read and understood the operating instructions prior to beginning any work. The manufacturer's liability is void in the case of any damage caused by using the product contrary to its intended use, non-compliance with these operating instructions, assignment of insufficiently qualified skilled...
- Page 3 If the item left idle, please operate the reverse valve once time each month.Or the reverse valve couldn’t be use, at this time, please call our service clerk. Labelling Manufacturer Huxin Instrument(Beijing)Co.,LTD Model Model HS703 Product name Pneumatic comparator Product Pressure range (-0.95-60)bar Range Serial number...
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Page 4: Table Of Contents
Claim Safety 1.Summary 2.Technical Specification 3.Components 4.Working principle 5.Operation 6.Troubleshooting 7.Maintenance 8.Support... -
Page 5: Summary
1 . Summary HS703 Pneumatic comparator is portable structure and designed to generate pressure from vacuum to 60bar.Built-in filter protects the pump from dirty and make maintenance easy and convenient.The F-adjust valve could accomplish 0.0001bar(10Pa)pressure resolution.Especially the lever lead screw design makes user operate in economize labor.The design of reverse valve makes the switch of vacuum and positive pressure more smooth.Two... -
Page 6: Components
3 . Components Hand pump Generate pressure about 10-12bar by run the hand pump up and down repeatedly.Hand pump will realize prepressing function. Lead screw Increase pressure by turning the lead screw clockwise,decrease pressure by turning the lead screw anti-clockwise. Reverse valve (positive/ vacuum) Press the button in order to switch between positive pressure and vacuum. -
Page 7: Working Principle
4 . Working principle HS703 is composed of hand pump,lead screw,F-adjust valve,relieve valve,reverse valve,outputs,etc.The pressure gauge can be installed quickly.Push or pull reverse valve to switch positive pressure position and vacuum position. It is easy to prepressurize by running hand pump up and down,then compress the work medium by turning lead screw clockwise(anti- clockwise),that could realize pressure increasing(decreasing)secondary.Fine... -
Page 8: Operation
5 . Operation For example(1): Take pressure gauge 25bar(2.5Mpa)as example(The standard point:0bar,5bar ,10bar,15bar,20bar,25bar ) Put HS703 on the level;Turn the relieve valve anti-clockwise to open it and make sure the Push it to positive pressure position reverse valve is in positive pressure position. - Page 9 For example(2): Take vacuum pressure gauge as example (The standard point:0bar,-0.2bar, -0.4bar,-0.6bar,-0.8bar,-0.95bar) Pull it to select Put HS703 on the level;Turn the relieve vacuum position valve anti-clockwise to open it and make sure the reverse valve is in vacuum Open by turning it position.
- Page 10 Record 0bar record and close the relieve valve.Providing pressure by hand pump and Up and down leading screw let pressure near -0.2bar,then adjust the F-adjust valve to get exact pressure value. Fine adjust Turn it clockwise until close Use the hand pump leading screw and F-adjust valve to calibrate other standard Up and down point(-0.4bar,-0.6bar,-0.8bar).If the pressure...
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Page 11: Troubleshooting
6 . Troubleshooting There may be some faults of HS703 methioned below after long term use,the maintainer can analyse and eliminate problems by these methods. Make sure to release all pressure of system.It is forbidden to disassemble and repair the product with pressure. -
Page 12: Maintenance
2-3 times. 7.2.If HS703 needs to take a long distance transport,please put on all plugs to prevent leakage of work medium.It is necessary to pack with specialized cartons and foam wrap. - Page 13 HUAXIN Products series Digital Pressure Gauge HX601/HS108 Intelligent Pressure Calibrator HS602 Pressure Comparator HS700(-0.5-0.5)bar HS701(-0.95-6)bar HS702(-0.95-16/25)bar HS703(-0.95-40/60)bar HS720(0-140)bar HS704 (0-160/250)bar HS705/HS705A(0-700)bar HS710/HS710A(0-600/700)bar HS706(0-1600)bar Electrical Pressure Comparator HS318L(0-600)bar 5pcs output HS316L(0-25)bar 5pcs output HS317L(0-60)bar 5pcs output HS315(-0.95-0)bar 2pcs output HS316(0-25)bar 3pcs output...
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