VRD Testing for WTIA test procedure

SafeTac VRD Tester (Series 3)

VRD Tester is a test unit designed to test all current DC VRD  units on the market today.

The series 3 is necessary because it is not possible to load many welders to a high enough current  using resistors in a hand held tester

Some welding machine models in the  Cigweld,Lincoln,Kemppi & SafeTac  range require a load of 30 or more amps to turn the VRD off & on

Unit has an internal 200 Ohm resistor & a programmable microprocessor precision voltage indicator to indicate the transition from less than 35 VDC (Green LED) to above 36 Volts DC (Flashing Red LED)

The unit works by connecting leads pressing button to turn the unit on then welding at 90 to 150 Amps for 2 to 3 seconds.

It is still possible to test some Welding machines without welding with the optional load resistor.

Unit will automatically power down after 3 minutes to increase battery

Tester can be programmed to suit different voltages if required

Series 3 Tester will also work with wired handpiece tig triggers & remote RF type electrode holder trigger switch devices

Tester comes with adaptors to suit all types of welding terminal such as Stud, Lincoln mech-connectors, Small dinse on inverters & large Dinse on 200 amp plus machines.

Inline tester makes connection to welding machine easier & safer than other methods currently used.

SafeTac VRD Tester (Series 2) VRD Tester is a test unit designed to operate with all SafeTac VRD units. It is a cylindrical rod with a green or red button one end and a brass lug on the other. With a brass button in the middle, testing is accomplished by touching the brass end onto the work clamp then placing the electrode onto the central brass button and pressing the test button. The test procedure is etched onto the 304 s/s plate, which is attached to the H/D canvas carry bag. Upper test resistance has been increased from 180 Ohms to 200 Ohms +/- 1% (1674.2 2003)VRD turn on point and 40 ohms VRD turn off point. The series 2 tester now works with Cigweld and Eutectic VRD products plus many other Factory VRD units set close to the 200 Ohm maximum resistance VRD turn on point. The series 2 unit can be identified by the no 2 stamped on the end of the brass test lug. At no time is the operator in contact with the welder output whilst testing. Unit Length 290mm Diameter 38mm Weight including carry bag 705 grams

 

SafeTac Welder OCV Level Test Pen Programmable Microprocessor controlled (Patent Pending) allows simple pass/fail testing of welding machines output voltage for compliance to AS 1674.2 2003,also quick check for safe electrode holder voltage before handling electrode (test time less than 1.5 seconds). 3 to 180 VAC/VDC input auto polarity AC/DC auto detect, auto turn on /off fuse protected Indication Steady Green less than 35 VDC & 25 VAC RMS Flashing Red Voltage is greater than 35.5 VDC & 26 VAC RMS,Steady Blue indicates voltage being tested is AC Red & Green Flashing simultaneously indicates battery needs changing Light weight pocket tester with built in sleep mode (1 year battery life normal operation) auto detects and turns on when welder voltage is being applied probe turns off when test is complete. Standard factory setting indicates test min/max voltage levels set in Australian Standards 1674.2 2003 AC & DC Pass & Fail indication levels can be adjusted between DC 3 to 180 VDC AC 3.5 to 180 VAC Peak to suit site requirements. Note : Test on non - VRD Welder (67 VAC) OCV Red on indicating over -voltage Blue on indicating AC