IRN/NEM/200/Ex-0G magnetic switch EX JOLA

Description

The IRN/NEM/200/Ex-0G magnetic switch EX JOLA is used for automatic level control, level indication, limit/point level detection, as a protection against emptying or as a protection against overfilling of liquids in tanks or tanks.

These units are not suitable for use on vibrating machines or in places where they are subject to shock or vibration.

Mode of operation

Magnetic switches IRN / NEM /…/ Ex-0G II 1/2 G c IIC CT = 0 are equipped with a float and a floating rod to which the magnet is attached at the opposite end of the float. The float follows the liquid level and moves the floating rod, inserted through the screw thread of the unit’s spigot, up or down. A guide tube for the floating rod and a magnet are mounted above the spout, and adjustable magnetic switches IRN/HMW/28/Ex-1G II 2 G Ex ia IIC T6 Gb are mounted on the outside of the tube. These magnetic switches have so-called bistable properties; i.e. remain in the switching state caused by the magnet’s passing effect and only switch when the magnet goes in the opposite direction.

IRN/NEM/200/Ex-0G features

• float material: stainless steel
• float dimensions: 200 mm Ø
• diameter of floating rod: 6mm
• material of the floating bar: stainless steel
• length of floating rod: 1,200 mm for liquids with a specific gravity of 1 g/cm³
• Magnetic capsule material: antistatic (conductive) PP
• Threaded spigot: stainless steel
• guide tube: stainless steel, dimensions: see technical data sheet
• ex magnetic switches installed: IRN/HMW/28/Ex-1G II 2 G Ex ia IIC T6 Gb
• mounting: vertical
• temperature range: + 1 °C to + 60 °C

More technical information can be found under the Documentation tab in the attached pdf documents.

Use

for use in potentially explosive atmospheres in Zone 0, Zone 1 and Zone 2 categories.

The design allows for on-demand use in mines susceptible to fire force. INERIS EC type-examination certificate 03ATEX0164