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MLX Field Mount Loop Indicator
Brand: Yokogawa Electric CorporationThe MLX is the latest addition to Yokogawa's family of loop powered indicators operating from a 4-20 mA DC input.
This model uses the same explosion proof housing as the MLA and MLD, and incorporates the LCD display from the EJX pressure transmitter.
The display itself contains a 6 digit numerical display, a 6 digit alphanumeric display for engineering units and a 20 segment bar graph indicating 0 to 100% of full scale.
The display is user configurable to show the desired engineering units.
Another unique feature is square root extraction from a pressure transmitter signal for flow measurement.
Please consult our general specification or instruction manual regarding product related details, options, mounting and wiring.
Features- User interface
- A front panel push button switch combined with four touch switches allows easy configuration of the indicator (calibration, span, zero and engineering units).
- Root extraction
- For applications where the process variable is non-linear and based on the square root, 3/2 root or 5/2 root, the MLX can be configured to display the root function of the input.
- Field Configurable
- Via the front panel user interface, the process variable parameters can be modified as desired in the field.
- LCD Display features
- The LCD display includes a bar graph for an analog indication of the process variable magnitude. The 6 digit display and 6 character display (combined with several symbols) give an instant view of all process variable parameters. A menu system allows customizing parameters such as decimal point position, engineering units, status of symbols and state of bar graph.
- Self-diagnostics
- Built-in diagnostics operate at power-up and during operation for ease of maintenance and troubleshooting.
- EMC Conformity Standard
- EN61326-1 Class A, Table 2 (for use in industrial location)
- Built-in Loop Protection
- Includes circuitry that, in the event of MLX failure, automatically takes the MLX out of the loop thus maintaining loop integrity.
Specifications
Accuracy
- ± 0.05 % of Full Scale +1-Digit
- 0.02 % of Full Scale - Max.
- -0.03 % of Full Scale - Max.
Ambient Temperature Range
- -40° to 80° C (-40° to 176° F)
Approvals & Certifications
- ATEX Intrinsically Safe, Flameproof, Non-Incendive Approval
- CE
- CSA Intrinsically Safe, Explosion-proof, Dust Ignition-proof, Non-Incendive Approval
- EMC EN 61326-1 Class A
- FM Intrinsically Safe, Explosion-proof, Dust Ignition-proof, Non-Incendive Approval
- IECEx Intrinsically Safe, Flameproof, Non-Incendive Approval
Cable Type
- Twisted Pair Shielded Cable
Current
- 200 mA without Damage - Over-Range
- 3.6 to 28 mA - Operating Current
Display
- 20-Segment Bar Graph
- LCD Display
- Six 14-Segment Alphanumeric Characters
- Six 7-Segment Digits - Numerical
Electrical Connectors
- 1/2”-14 Female NPT
- M20 x 1.5 Female
Enclosure Finish
- Epoxy Resin Coating
- Gray (RAL # 7046)
- Light Blue (RAL # 5012)
- Mint Green
- Orange (RAL # 2008)
- Polyurethane Resin Baked Finish - Deep Sea Moss Green (Equivalent of Munsell 0.6 GY3.1/2.0)
- Polyurethane-Epoxy Anti-Corrosion Coating
- Red (Munsell # 7.5 R4/14)
- Silver (RAL # 9006)
- Yellow (RAL # 1018)
Enclosure, Body Material
- 304 Stainless Steel - Wired Tag
- 316 Stainless Steel - Name Plate
- Black Anodized Aluminum - Name Plate
- Low Copper Cast Aluminum Alloy with Polyurethane Paint
- SUS316 Cast Stainless Steel (ASTM CF-8M)
Environmental Protection
- IP66
- IP67
- NEMA 4X
Humidity
- 0 to 100 % Relative Humidity at 23° C (73° F) - Ambient Humidity
Hysteresis
- 0.03 % - Hysteresis Error
Input
- 4-20 mA DC 2-Wire
Isolation
- 500 Vdc - Input/Output / Ground Isolated
Linearity
- 0.03 % - Conformity
Mounting
- 2” (50 mm) Pipe Mount
- Bracket
- Surface
- Wall Mounted
Mounting Position
- Horizontal
- Vertical
Repeatability
- 0.03%
Shock
- 50 G
Span & Zero Adjustments
- Zero & Span can be Set between ± 999,999
Temperature Effect
- 0.1° C (0.18° F) Per 10° C (18° F) - Ambient Temperature Effect
Turn-On Time
- 12 seconds (Includes Power On Self-test & Memory Integrity Check)
Update Time
- 1 second
Vibration
- 3 G at 10 to 150 Hz
Voltage Drop
- 3.5 V at 20 mA