Jerguson® Magnicator® Transmitters & Switches

Transmitters

MTII 4300™


The MTII4300 precisely senses the position of the Magnicator float by applying a short 1.5μs pulse to the sensing element. This pulse creates a magnetic field around the sensing element. When the float’s magnetic field and the sensing element’s magnetic field intersect, a twist occurs in the sensing element.  Based on the time between the initial pulse and the detection of the corresponding twist, the location of the float magnet can be precisely calculated.

 

 

 

  • 4-20 mA loop powered; 10.5 to 28 VDC
  • HART 7 protocol communications standard
  • SIL2 Available
  • Foundation Fieldbus output optional
  • Sensing lengths from 6 inches to 228 inches (15 cm to 6 meters)
  • Continuous level measurement with repeatability .01% Full Scale
  • FM approved for use in hazardous locations:
    • Class I, Division 1 Groups B, C, D
    • Class II, Division 2 Groups E, F, G
  • CSA and ATEX approvals optional
  • NEMA 4X Enclosure Standard – 316SS optional

 

RST2™

rst2

The RST2 sensor is a chain of magnetic reed switches and resistors mounted within a heavy wall stainless steel tubing assembly. As the float within the Magnicator responds to liquid level change in the chamber, the float actuates adjacent reed switches. The reed switch and resistors provide a varying resistance output. It is this output that is measured by the RST2 electronics module, as an indication of liquid level. The RTS2 transmitter will provide a 4-20 mA signal proportional to the liquid level indicated by the Magnicator.

 

  • Two-wire, 4-20 mA loop powered, proportional transmitter
  • Sensing lengths from 6 inches to 228 inches (15 cm to 6 meters)
  • Continuous level measurement with 1/2″ resolution
  • UL/CUL approved for use in hazardous locations:
    • Class I, Division 1 Groups B, C, D
    • Class II, Division 2 Groups E, F, G
  • Electronics housed in NEMA 4X, 7 (Groups B, C, D) and IP 66/67 enclosure

 

Switches

SAS-16™ – Snap-Action Switch

 

saswjuncbox

The switch mechanism is based on a unique Jerguson tri-magnet design where the snap action is accomplished by the utilization of magnetic repulsion.  The magnet mounted in the float causes the secondary magnet to rotate as it passes up and down. The switch magnet is repelled by the secondary and snaps to the opposite side. This causes the cradle to pivot, moving the push rod which operates the switch contacts.  The result is positive snap action interlock switching – no springs…no cams…no problems.

 

 

 

 

  • Externally Mounted – No Contact with Fluid Process
  • Suitable for Applications up to 750ºF!
  • Fully Adjustable Switch Post
  • Highly Resistant to Vibration
  • SPDT (Single-Pole Double-Throw)
  • 10 Amp Rating 120 VAC; 10 Amp 240 VAC
  • Standard Anodized Aluminum Enclosure; Available in 316 Stainless Steel
  • UL/CUL Class I, Division 1, Groups A, B, C, D
  • ATEX Version Available

 

RS-2™

rs2

This simple reed switch device can be used to directly control low-amp equipment, or as an input to user supplied controllers or DCS systems.  Available with either SPDT or DPDT action.

 

 

 

 

 

 

  • Hermetically Sealed Bi-Stable Latching Reed Switch
  • Continuous 1 Amp, Maximum 2 Amp Current Load @ 120 VAC/VDC
  • NEMA 7 for NEC Class 1, Div. 1, Groups B, C & D
  • Completely Sealed – Never has to be opened or exposed to the environment
  • UL, CUL approved for service in Class I, Groups B, C, & D.  Class II, Groups E, F, & G Hazardous Locations

 

Resources

Approvals: USA FM MTII4200 and MTII4300

Brochures: MTII4300 Magnetostrictive Transmitter

RST2 Level Transmitter

SAS-16 Point Level Switch

RS-2 Point Level Switch

IOM: Magnicator MTII 4300 Magnetostrictive Transmitter Installation, Operation, and Maintenance Instruction Manual

Magnicator MTII 4200 Transmitter Installation, Operation, and Maintenance Instruction Manual

Drawings: Magnicator Switches, Transmitters & Accessories