The Diverse Zeromag ZM50 is a demagnetising system for steel pipes and plates similar to the ZM100A, however the ZM50 is packaged in a splash proof container for deployment in subsea welding habitats. 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 and is fast (ready to weld in just a few seconds), deep penetrating (will handle easily 50mm thick wall size) and simple to use. The ZM50 is housed in a stainless steel drum with a splash proof front panel seal. A ring handle allows the unit to be manipulated to the working site in the habitat. With Zeromag, you are in control – you can see the magnetic field level in the weld area, control Zeromag either manually or automatically and see the magnetism shrink to zero. You then know welding can progress unimpeded.
| Magnetic Field Reduction | Typically reduced 20x for most weld scenarios magnetic field reduced to <10 Gauss |
| 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 2 push buttons to start and stop automatic mode Manual adjustment control used for manual override Gaussmeter null |
| Current Output Range | 0 to +/- 50 Amps max Option: 0 to +/- 100 Amps max |
| Output Voltage Range | 0V to 18V |
| Magnetic Field Nulling Time | 3 seconds typical |
| Manual Control | -50A to +50A continuously variable with 10 turn control Option: -100A to +100A |
| Auto Control | Auto-tracking and nulling of magnetic field |
| Line Power | Line voltage range 90V to 265V ac 48 to 62Hz Power 1.8kVA |
| 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 | 36kg |
| Dimensions (DiaxH) | 370 x 580 mm |
| Storage Dimensions | 50 x 50 x 75, weight 47kg |
| Calibration | Calibrated by Diverse to NPL traceable standard |
| Housing | Stainless steel construction outside. Inside assembly is stainless steel and painted aluminum. Unit has a welded circular handle to facilitate handling |
| Demagnetizing Cable | 50m + 50m. Options: bobbins and clam coils |
| EMC | N/A ZM100A validated to CE and FCC standards for emissions and immunity |
| Warranty | 12 months |