Diverse Zeromag ZM100A-33 High Power Demagnetizer

Diverse Zeromag ZM100A-33 High Power Demagnetizer


The Diverse Zeromag ZM100A-33 is a demagnetizing system for steel pipes and plates similar to the ZM100A. However it uses a power pack of double power allowing up to 33V output delivering 3KW continuous output power. Particularly applicable for large pipes, joint degauss and high field environments such as smelters. It is used to reduce the magnetic field levels in welding joint preparations to levels which are low enough to enable welding to proceed. It uses the same novel technology as the ZM100A. The solution is fast (ready to weld in just a few seconds), deep penetrating (will easily handle 50mm thick wall size) and easy to use.



  • Portable weld preparation demagnetism for steel structures in smelters
  • Suitable for very large pipes or large structures
  • Cancels magnetism to prevent arc blow
  • Uses proprietary Diverse technology
  • Reduces or eliminates weld repairs caused by magnetic arc blow
  • Compact rugged construction
  • Can be used in conjunction with preheat
  • Rapidly deployed and simple to operate
  • Two sets of handles for shared lifting

Technical Specifications

ZM100A-33 Specifications

Magnetic Field Reduction In auto mode typically reduced 40x, for most weld scenarios magnetic field reduced to < 10 Gauss. In manual mode for most scenarios field reduced to 0G
Gaussmeter Measurement Range 0 to +/- 1800 Gauss
Resolution 1 Gauss
Magnetic Probe Size 5mm x 20mm x 100mm long. Encased in stainless steel
Controls Auto/Manual switch
Push buttons to start and stop automatic mode
Manual adjustment control used for manual override
Gaussmeter null
Current Output Range 0 to +/- 100 Amps max
Output Voltage Range 0V to 33V (I x V must be <= 3kW)
Magnetic Field Nulling Time 3 seconds typical
Manual Control -100A to +100A continuously variable with 10 turn control
Auto Control Auto-tracking and nulling of magnetic field
Line Power Line voltage range 180V to 265V ac 48 to 62Hz Power 3kW
Operating Temperature -20 C to 50 C
Storage Temperature -40 C to 85 C
Humidity 0-90%, non-condensing
Environmental Not water proof so do not operate or store in a wet environment
Weight 33kg
Dimensions (WxLxH) 520 x 220 x 550 mm
Storage/Shipping Dimensions 62x27x63, weight 40kg
Calibration Calibrated by Diverse to NPL traceable standard
Housing Built into a carrying case to enable it to be used on site; 19" portable rack, 4U
Demagnetizing Cable 50m and up to 3x50m. Options: bobbins and clam coils
EMC Validated to CE and FCC standards for emissions and immunity
Warranty 12 months