The Merlin S425A is a 700 bar air operated, automated injector tester used for testing and adjusting  2 stage (2 spring) and conventional injectors, before and after reconditioning. Features are basically the same as S400A with an additional high pressure circuit, pressure regulator, gauge and control valves required to operate second stage opening pressure. Designed and developed with the following functions:-
  • Opening pressure
  • Chatter test (atomization)
  • Spray pattern
  • Seat leakage
  • Back-leakage
All controls and instruments are grouped together for operator convenience and include the latest Merlin S500-2 display monitor, flow control valve, light and fume extraction control.Nozzle opening pressure 1 and 2 are digitally displayed and stored to memory for print-out.Fully sealed air pump unit, robust construction, pneumatically operated via normal workshop air supply.Illuminated spray chamber to give a good view of injector spray form. A variable rate air operated fume extraction system with optional Perspex spray arrestor further assists the extraction operation.Standard tank features include sight level gauge, quick release filler cap and magnetic drain plug.The Merlin S500-2 Display Monitor has been designed for accurate performance testing, production line testing and quality over checking of diesel fuel injectors and nozzles.The repeatable and reliable digital display of pressure eliminates errors normally found in conventional analogue pressure gauges due to hysteresis in gauge readings,possible undetected mechanical damage, gauge inaccuracies and gauge needle bounce when setting Nozzle Opening Pressure.Back leakage timing errors are eliminated due to the absence of having to start and stop a remotely sited mechanical timer.Print out of test results from the thermal image printer.
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    • 1 year warranty

      * Free UK Delivery on orders over £100 (Mainland UK only)
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      • 25,000 Sqft Production Centre

        One of the largest and most sophisticated diesel workshops in the world

      • Merlin HQ

        Purpose-built distribution centre in Preston, Lancashire housing over 50.000 parts.

      • Test Equipment Division

        Design and manufacture of an ever evolving range of diesel injector and pump testing service equipment.

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