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WE-7 Operating Instructions 

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The WE-7 allows the Operator to induce an AC or a pulsed DC field into the 
ferrous material being tested.  The device should be utilized within the 
parameters set by the operational specifications within this guide.   

 

 

                        

  

 

 

1.  Push Button Switch – 

The Lycon (#11-304) Micro-Switch is the same 

style of switch used in all Standard Yokes (WE-Series and Competitive units).  
This style of switch has no grounding provision, so care must be taken by the 
operator while performing Wet Method Inspection.  The Switch Housings on 
WE-Series Products were designed for comfort and safety.  While depressed, 
the switch delivers power (AC) to the coil encapsulated in the Yoke housing.  
Review the instructions in this guide, for switch replacement. 

 

 

2.  Slip-In Switch Cover – 

The Slip-In Switch Cover is exclusive to WE-

Series Yokes.  To remove the cover, simply 

pinch

 the cover and pull it out.  

While the Slip-In Switch Cover provides superior resistance to moisture 
ingress, than mechanically fastened switch membranes, it must be regularly 
removed to clean the Switch and Housing, during wet method inspection,  
This cleaning will aid in the avoidance of operator shocks.  

 

        

 

Push Button 
     Switch 

Target Area 

Junction End Cap 

AC/DC Selection 

Switch & DC 

Intensity Knob. 

Pole Pieces 

Crack Orientation 

Top 

Bottom 

Wide Side of Switch Cover (Right). 

Top 

Bottom 

  Helping in Switch Cover 

Top Bottom

Right Left 

 

Summary of Contents for WE-7

Page 1: ...509 Township Road 543 Phone 780 459 6720 Sturgeon County Alberta Fax 780 459 7837 T8T 1M1 E mail info westerninstruments com Web www westerninstruments com Operating Instructions WE 7 Compact AC DC Yo...

Page 2: ...y While depressed the switch delivers power AC to the coil encapsulated in the Yoke housing Review the instructions in this guide for switch replacement 2 Slip In Switch Cover The Slip In Switch Cover...

Page 3: ...he Field Intensity is Infinitely Variable with the use of the Intensity Knob which is also located on the Control Panel An illustration of the Control Panel is show bellow DO NOT CHANGE THE FIELD WITH...

Page 4: ...operation the unit can be operated for extended periods of time however the Yoke housing may get to warm to hold If the Yoke is used for prolonged periods of time of continuous cycling such as 2 to 3...

Page 5: ...ection when Fluorescent Particles are used Indications found with Dry Powder and an AC Field will tend to form immediately and will take slightly longer with Wet Method Particles While using a DC Fiel...

Page 6: ...e Neutral Black Live Care must be taken to insure the proper installation of an AC Power Plug and if there is any question contact your distributor or Western Instruments If an AC Plug in not installe...

Page 7: ...ore we recommend instructional training to CGSB ASNT or other regulatory authority qualifications Western Instruments highly recommends the end user exercise all possible safety precautions including...

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