Product Description

The MTLT-5000 is based upon the magnetostrictive principle. The sensing tube contains a wire which is pulsed at fixed time intervals. The interaction of the current pulse with the magnetic field created by the magnetic float causes a torsion stress wave to be induced in the wire. This torsion propagates along the wire at a known velocity, from the position of the magnetic float and toward both ends of the wire. A patented piezo-magnetic sensing element placed in the transmitter assembly converts the received mechanical torsion into an electrical return pulse. The microprocessor-based electronics measures the elapsed time between the start and return pulses and converts it into a 4-20 mA DC output which is proportional to the level being measured.

Product Features

  • Designed to mount externally to the Magne-Trac
  • No maintenance required
  • Multidrop HART Communications
  • FM Approved Explosion Proof/IS
  • NEMA 4X/7 enclosure
  • Modular design
  • Adjustable output damping
  • Up to .001” resolution
  • 2-wire loop powered
  • RFI/EMI protection
  • Offers a 4/20 mA 2-wire loop powered circuit for continuous level measurement
  • Available in lengths up to 300 inches
  • Process temperature range: -30 to 400 degrees F.
  • The Non-Contact design ensures no wear to the sensing element, thus requiring no maintenance or recalibration

Product Specifications

Level OutputSpecification
Measured VariableProduct level & interface level
Output Signal / Protocol4 to 20 mA with HART®, 1 or 2 Loop
Order LengthsFlexible Hose:

 

(ATEX Ex ia IIB, FM IS Group C, D):

3048 mm (120 in.) to 7620 mm (300 in.)*

 

(All Else):

3048mm (120 in.) to 12200mm (480 in.)*

 

Rigid Pipe:

508mm (20 in.) to 7620mm (300 in.)

 

Non-Linearity0.02% F.S. or 0.794mm (1/32 in)**
Repeatability0.01% F.S. or 0.381mm (0.015 in)**

(any direction)

*Contact QTS for longer lengths
**Whichever is greater

Output4-20mA HART®
Linearity0.02% F.S.
Measuring RangeRigid Pipe: 20-300 Inches Flexible Hose: 120-480 inches
ApprovalATEX, CSA, FM

 

ParametersSpecification
Enclosure RatingNEMA Type 4X
Humidity0 to 100% relative humidity, non-condensing
Operating TemperatureElectronics:

-40°C (-40°F) to 71°C (160°F)

Sensing Element:

-40°C (-40°F) to 125°C (257°F)

Temperature Element:

-40°C (-40°F) to 105°C (221°F)

Vessel PressureIndustrial Rigid Pipe: 1000 psi (69 bar)

Sanitary Pipe: 435 psi (30 bar)

Teflon Pipe: 100 psi (7 bar)

Flexible Hose: 260 psi (18 bar)

MaterialsWetted Parts: 316L stainless steel

Non-wetted Parts: 316L stainless steel

Epoxy coated aluminum

* Contact QTS for alternative material

Electronics

Input Voltage10.5 to 36 VDC, 28 VDC Max. for I.S. Approval
Fail SafeHigh (21.4mA) or Low (3.8 mA)
Reverse Polarity ProtectionSeries diode
Light/Transient ProtectionStage 1:

Line-to-ground surge suppression; IEC 61000-4-5

 

Stage 2:

Line-to-ground surge and line-to-ground transient suppressors, IEC 61000-4-4

Wiring

Connections2-wire shielded cable or twisted pair, Daniel Woodhead 6-pin male connector, 4570 mm (180 in) integral cable with pigtail

Calibration

Zero Adjust RangeAnywhere within active length
Span Adjust RangeFull Scale to 152 mm (6in.) from zero

Mounting

Rigid Pipe¾” in. adjustable MNPT fitting Flange or Ti-Clamp® Mount
Flexible Hose1” in. adjustable MNPT fitting Flange Mount

Electrical Connections

Single & Dual Cavity¾” in. FNPT conduit opening
NEMA Type 4X½” in. FNPT conduit opening

Display

Measured VariablesProduct level, interface
VariablesLevel and temperature
Size13 mm (0.5 in)
Number of Digits16

Compatible Products

Documents

DocumentTitleCategory
400-01 400-01 MTLT-5000 Overview
Product Literature
410-06 Magnetostrictive Transmitter Model Code Breakdown
Data Sheet
430-04 430-04 MTS Magnetostrictive Transmitter IOM
IOMs