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pH Digital Controller pH502421-2 With Matching Pin & PID Control PACKED WITH FEATURES ■CAL Check alert users of calibration status ■Easy to operate ■Fail safe alarm system ■PC connectivity port ■ATC ■Mounting brackets & instructions ■Accurate measurement PROCESS INSTRUMENTS AmpHel Flat-tip pH Electrode General Purpose HI 6100405 Designed for industrial applications with features such as a PTFE junction, general purpose glass, and PVDF body. With its durable design, you can count on this electrode to stand up to your process environment. ■Flat tip pH Electrode ■BNC Connector ■General purpose glass electrode - for best response time over entire range ■Can be used in many different applications ■PVDF Body ■Double junction technology/gel polymer filling wwwWhen you select a Blackstone pump, you are eliminating the time consuming effort involved in picking the right material for your application. Blackstone pumps are completely sealed during assembly and offer IP65 protection against splashes and spills providing excellent protection even in hostile environments. Fibre- reinforced polypropylene housing stands up to aggressive chemicals while offering superior strength under tough industrial conditions. ■ IP65 protection ■ Simple operation ■ One-piece diaphragm construction ■ Minimal moving parts ■ Excellent resistance to most chemicals ■ Various flow rates available The pump head and O-rings are made of PVDF, PTFE and FPM/FKM which offer unsurpassed resistance APPLICATIONS Used wherever fluids must be dosed with the highest possible grade of accuracy with a defined volume and within a defined time period. Guide to Process Instruments ■ Analog Process Controllers ■ Black-Stone Dosing Pumps Controller and Pump System ■ Digital and Analog Transmitters ■ Digital Panel Mount Controllers ■ Mini Controllers ■ PCA Series Analysers ■ Wall Mounting Controllers Blackstone Chemical Dosing Pumps ■ IP65 protection ■ Simple operation ■ One-piece diaphragm construction ■ Minimal moving parts ■ Excellent resistance to most chemicals ■ Various flow rates availableS A Metal Finisher Issue 30 Contents 46 16 S A Metal Finisher Issue 30 5 56 64 Mediation Contribution from Frans Wilbrink of Wilbrink and Associates SAMFA, PostNet Suite 39, Private Bag X3, Plumstead, 7801. Email: headoffice@samfa.org.za | www.samfa.org.za Tel: 021 761 8537 Cell: 082 553 2463 Published by the South African Metal Finishing Association | Dec 2020 Graphic Material Credits on Page 54 NEWS BENEFITS OF CUSTOM TRAINING By David Petrie of Rheinmetall-Laingsdale U.K. lawyers cash in with “No win No fee” Health Safety & Employment Laws By Anthony Poeton of Poeton Industries 48 Letter from former KZN Chairperson, Mark Wright Greetings from over the Seas Page Links5 S A Metal Finisher Issue 30 From the Editor Tony van der Spuy They say that Necessity is the Mother of Invention and, with the planet facing one of its greatest challenges, exam- ples of inventions to help us cope in this pandemic abound. If we thought that we were enduring poor trading conditions before COVID, we certainly had to change into a different gear to keep traction in these trying times. When everyone is facing a common threat it does help to refocus on what we need to be doing. It is easy to become distracted when everything is going well. Things change when a serious threat looms. SAMFA is a service association, so we need to be able to continue to offer our services at affordable rates. This issue of S A Metal Finisher is an example of necessary change. We hope you enjoy this digital version which has been designed specifically for online viewing. Going digital-only has enabled us to reduce advertising rates and made distribution slicker and more efficient. Please read the SAMFA News article to discover all the changes we are making to stay ahead of the game. Finally, as we contemplate the new year before us, our wish for you is that 2021 will bring good fortune, good health and fresh opportunities.Sustaining Members The companies whose logos appear below have subscribed to SAMFA’s premium class membership. These sustaining members ensure that we are in a financial position to continue to develop and to support the growth of a strong and responsible metal finishing industry in RSA.COATING TECHNIQUES S A Tel: +27 11 398 4330 Cell: +27 76 411 8498 Powder Coating Equipment Pre-Treatment Systems Drying and Curing Ovens Conveyor Systems Application Systems Control Systems Special Design www.ct-sa.co.zaAutomatic & Manual Powder Coating Application Equipment E-COATMasterSeries E-COAT Master Series is currently our flagship mobile system. Also available is our entry level Basic and PRO unit. All systems are available in box feeder and hopper type as well as various fixed mounting options. E-COAT Master eriSes is a most efficient and intelligent system delivering outstanding value for money. The unit incorporates the option to independently set current, voltage, powder and atomizing values. The “Fast Select” feature enables operators to choose between three options: ●Smooth Surface Coating ●Re-Coating ●Difficult Surface Coating or extremely high Faraday Cage areas. Parameters can be set or changed on the rear end cap of the gun during production. The E-Coat Master series stores 50 configurations in memory. a www.ct-sa.co.zaTel: +27 11 398 4330 Cell: +27 76 411 8498 Email:ray@ct-sa.co.za Website: www.ct-sa.co.za Unit 8, The Warehouse, cnr Deodar & Constantia Roads, Pomona, Kempton Park. Contact Us: Tel: +27 11 398 4330 Cell: +27 76 411 8498 E-ROBOTSeries RECIPROCATORS ●Smooth, swift and precise movement for speedy and uniform coating ●Reduced powder consumption ●Quick operation change with pre-programmable option settings for automatic selections of stroke and speed ●User friendly touch screen panel to control speed and stroke length ●Wide memory with 99 receipts. Last working time and total working time can be saved ●PLC controlled axis and automationsNext >