Transformer Rewinding for Ultrasonic Power Module

This week I worked on an Ultrasonic Power Module ( Artech Ultrasonic DGS35-200-T ). It is a 200 watt power module that produces frequencies in the range of 30 - 38Khz. It is coupled to 2 transducer heads that shakes very fine screens in or...

Wohlenberg Keypad Display Repair

Over the last week we have been working on a Wohlenberg 115 Guillotine (built in 1999). A large number of the keys were no longer registering key presses which made the whole machine difficult to operate. These large membrane keypads often ...

Tracing a Eurotherm 425 SS Contactor Circuit

We recently received three Eurotherm 425 Solid State contactor's in for repair. These units were designed to be a low cost replacement for mechanical contactors. They are used for switching single phase resistive loads up to about 40A. S...

Old Sockets on a Light Barrier

Yesterday I worked on a photo eye barrier on an Itotec guillotine. A Currie & Co model PE330. The green LED which indicates the barrier is uninterrupted was out and stopping the blade from coming down. For guillotines the light barrier...

Bruce walks the Kepler track

To start off the year our resident intrepid explorer, Bruce, has completed a hike of the Kepler track in New Zealand. Over 4 days Bruce, with his daughter and family friends, walked the 60km circular path near Te Anau on the South Island. T...