APG MPI-F Series User Manual
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APG MPI-F Series User Manual

Mpi magnetostrictive level sensors
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MPI Magnetostrictive Level Sensors
User Manual
For the Series MPI-F
Intrinsically Safe, Flexible, Stainless Steel and PVDF Stems
APG
Doc #9005623
Part #200337
Rev C, 09/2022
R

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Summary of Contents for APG MPI-F Series

  • Page 1 MPI Magnetostrictive Level Sensors User Manual For the Series MPI-F Intrinsically Safe, Flexible, Stainless Steel and PVDF Stems Doc #9005623 Part #200337 Rev C, 09/2022...

  • Page 2: Table Of Contents

    Chapter 3: Programming ..................15 Modbus Programming ........................15 Modbus Programming with RST-6001 and APG Modbus Software ........15 4-20 mA Programming with RST-4100 and APG Modbus Software ........16 Modbus Register Lists for MPI-F8 ..................16-17 MPI-F8 Modbus Sensor Parameters ..................18-22 Modbus Register Lists for MPI-F6 and MPI-F7 ..............

  • Page 3: Introduction

    Every APG instrument comes with a label that includes the instrument’s model number, part number, and serial number. Please ensure that the part number on your label matches your order. The following electrical ratings and approvals are also listed on the label. Please refer to the product page on APG’s website for relevant certificates.

  • Page 4: Warranty And Warranty Restrictions

    Warranty and Warranty Restrictions This product is covered by APG’s warranty to be free from defects in material and workmanship under normal use and service of the product for 24 months. For a full explanation of our Warranty, please visit https://www.apgsensors.com/about-us/terms-conditions.

  • Page 5: Chapter 1: Specifications And Options

    Chapter 1: Specifications and Options • Dimensions MPI-F/B (SS Stem) Sensor Dimensions with 2”Ø Stem Weights MPI-F/B Float Options U & V / I & J S & T I & J U & V 2.80” 4.98” 5.88” 3.07” U & V 3.03”...
  • Page 6 MPI-F/B (SS Stem) Sensor Dimensions with 3”Ø Stem Weights MPI-F/B Float Options U & V / I & J S & T I & J U & V 2.80” 4.98” 5.88” 3.07” U & V 3.03” Y & Z / L & M I &...
  • Page 7 MPI-F/K (PVDF Stem) Sensor Dimensions MPI-F/K Float Options I & J H & K 4.98” 3.50” 2.00” 3.00” S1 Top Number & Total Probe Length Deadband Height of Stem in Inches Length† Weights L ≤ 144” 6” 5” 145” ≤ L ≤ 300” 8”...

  • Page 8: Mpi-F/K Shipping Box Contents

    • MPI-F/K Shipping Box Contents MPI-F/K Shipping Box PROBE HOUSING (TYP 2) PROBE MOUNTING OPTION (TYP 2) 10” (254 mm) FLOATS MINIMUM PER ORDER BEND RADIUS (TYP 4) STEM WEIGHT(S) AND DOWEL PIN(S) PER ORDER Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 9: Specifications

    • Specifications Performance Resolution 4-20 mA: 14 bit DAC (1 mm) Modbus: 0.04 in. (1 mm) Accuracy 4-20 mA: Greater of ±0.05% of FS or 1 mm Modbus: ±0.04 in. (±1 mm) Digital Temp Sensor Accuracy: ±1°C API 18.2 Temp Sensor Accuracy: ±0.25°C over -40°...

  • Page 10: Model Number Configurator

    • Model Number Configurator Model Number: MPI - _F_ _____ _____ - _____ _____ - _____ _____ _____ _B_ - _____ - _____ - _____ _2_ _____ _____ I. Stem Material A. Stem Type □ □ 316L SS Flexible Tubing J.
  • Page 11 Model Number: MPI - _F_ _____ _____ - _____ _____ - _____ _____ _____ _K_ - _____ - _____ - ____ _2_ _____ __W6__ I. Stem Material A. Stem Type □ □ Proprietary PVDF formulation Flexible Tubing J. Total Stem Length in Inches B.

  • Page 12: System Wiring Diagrams And Is Use Case Diagrams

    Otherwise, wire directly. Otherwise, wire directly. Otherwise, wire directly. USB to computer Equivalent 120 Ω with APG Modbus terminating resistor software internal to RST-6001 MPI sensor MPI sensor MPI sensor Note: An independent +8-24 Vdc...
  • Page 13 MPI - MDI Use Case Diagram (Modbus Output Only) Hazardous Area Zone 1 Modbus Address: Master Controling: Sensor 1 Zone 0 or Zone 1 MPI Sensor Modbus Address: 1 Single MDI controlling a single MPI sensor • MDI is located in Zone 1 area. MPI can be in Zone 0 or Zone 1 without additional barriers. •...
  • Page 14 ONLY. After programming, sensor must be reintegrated to 4-20 mA loop for proper system operation. Programming Module RST-4100 and APG Modbus software required for programming MPI-F6 and MPI-F7 series sensors. Out 24V Note: 24 VDC is MPI-F6 or...

  • Page 15: Chapter 2: Installation And Removal Procedures And Notes

    Chapter 2: Installation and Removal Procedures and Notes • Tools Needed You will need the following tools to install your MPI level sensor: • Wrench sized appropriately for MPI mounting • Wrench sized appropriately for conduit connections • Flat-head screwdriver for wire terminals •...

  • Page 16: Pvdf Installation Temperature Requirements

    • PVDF Installation Temperature Requirements Prior to installing a PVDF-stem MPI-F, the interior, mid-column temperature of the tank must be measured to determine the amount clearance needed at the bottom of the probe for thermal expansion. See Figure 1. Determine interior, mid-column temperature in °F. 2.

  • Page 17: Physical Installation Instructions

    Ensure that all components have been received, including: • MPI-F sensor (head and stem, slide mount if purchased) • Float or floats, if float(s) purchased from APG • Stem Weight(s); Weight-Locking Pin and Set Screw for SS; Top Weight Retention Ring (with two screws), Dowel Pin for PVDF •...

  • Page 18: Electrical Installation

    Taper IMPORTANT: Floats must be oriented  properly on the stem, or sensor readings will be inaccurate and unreliable. Untapered floats will have a sticker or etching indicating the top of the float. Remove sticker prior to use. Figure 2.2 IMPORTANT: MPI-F level sensor MUST be installed according to drawing 9009451 ...

  • Page 19: Chapter 3: Programming

    An APG RST-6001 Modbus Controller can be used in tandem with APG Modbus software to program and control up to 20 MPI-F8 series sensors. Through APG Modbus, you can monitor the raw readings from the sensor, configure the data for distance, level, volume, or weight, and enter measurements for a strapping chart.

  • Page 20: Ma Programming With Rst-4100 And Apg Modbus Software

    An APG RST-4100 Programming Module can be used in tandem with APG Modbus software to program a single MPI-F6/7 series sensor. Through APG Modbus, you can configure the 4 mA and 20 mA output setpoints and calibration settings. If your monitoring equipment (PLC, etc.) can be configured to interpret the 4-20 mA output(s) of the MPI-F as volume, then the MPI-F can be configured accordingly via APG Modbus.
  • Page 21 0, 1, 2, 3, 4 40201 Restore to Factory Defaults *These registers are not used by the MPI-F8, even though they are labeled in the APG Modbus software. †Setting is factory calibrated. Do not adjust. Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 22: Mpi-F8 Modbus Sensor Parameters

    • MPI-F8 Modbus Sensor Parameters 40401 - Units Determines the units of measure for the Calculated Reading when Application Type is set to 0, 1, or 7. 1 = Feet 2 = Inches 3 = Meters 40402 - Application Type Determines the type of Calculated Reading performed by the sensor.
  • Page 23 40405 - Maximum Distance (Factory Calibrated) Sets the distance (beginning from the Zero Reference) to the point where the sensor will stop looking for float signals, usually the bottom of the stem. A float beyond the Maximum Distance value will not be detect- 40406 - Full Distance Sets the positive distance (beginning from the sensor Zero Reference) to the point where the monitored vessel is considered full.
  • Page 24 40413 - Filter Window (Factory Calibrated) Determines the physical range (0 - 10,364 mm) of qualified received signals, based on the current raw reading. Signals beyond the +/- Filter Window range of the current reading will not qualify unless the average moves.
  • Page 25 40417 - Offset (Factory Calibrated) Sets the Zero Reference of the sensor, the point from which the calculated distance is measured. 40418 - Pre filter Defines the physical range (0 - 10,364 mm) of the start up (pre-filter) window. Four sample readings must be found within the Pre filter window for the MPI sensor to successfully start up.
  • Page 26 40446 - Baud Rate Selects the communication speed between the sensor and the Server Device. All devices on the network must use the same Baud Rate. APG Modbus Server and Client devices default to 9600 Baud. 0 = 9600 1 = 19200...

  • Page 27: Modbus Register Lists For Mpi-F6 And Mpi-F7

    • APG Modbus Register Lists for MPI-F6 and MPI-F7 Input Registers (0x04) Register Returned Data 30299 Model Type 30300 Raw Top Float Reading (in mm, unsigned) 30301 Raw Bottom Float Reading (in mm, unsigned) 30302 Version 30303-30304 Calculated Top Float Reading (in selected Units)
  • Page 28 40444-40445 Parameter 5 Data 0 to 1,000,000 mm *These registers are not used by the MPI-F6 or MPI-F7, even though they are labeled in the APG Modbus software. †Setting is factory calibrated. Do not adjust. Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 29: Mpi-F6 And Mpi-F7 Modbus Sensor Parameters

    1 = Feet 2 = Inches 3 = Meters For MPI-F6 and MPI-F7, this is seen only when using APG Modbus to program the MPI-F. This setting does not affect the 4-20 mA output. 40402 - Application Type Determines the type of Calculated Reading performed by the sensor.
  • Page 30 40405 - Maximum Distance (Factory Calibrated) Sets the distance (beginning from the Zero Reference) to the point where the sensor will stop looking for float signals, usually the bottom of the stem. A float beyond the Maximum Distance value will not be detect- 40406 - Full Distance Sets the positive distance (beginning from the sensor Zero Reference) to the point where the monitored vessel is considered full.
  • Page 31 40412 - Averaging Sets the number of qualified received float signals to average for the raw reading. Qualified received signals are placed in a first-in, first-out buffer, the contents of which are averaged for the raw reading. The larger the number of qualified received signals being averaged, the smoother the reading will be, and the slower the reading will be to react to quickly changing targets.
  • Page 32 40416 - Multiplier (Factory Calibrated) Calibrates the distance reading span. The Multiplier is shown by the values 1 - 1999, but these values are understood to represent 0.001 - 1.999. The default of 1000 (i.e. 1.000) is used for most applications. 40417 - Offset (Factory Calibrated) Sets the Zero Reference of the sensor, the point from which the calculated distance is measured.
  • Page 33 40424 - 2nd Float Offset Used to calibrate bottom float reading (-10,364 - 10,364 mm). Differences in fluid specific gravity can change the level at which a float rests in the liquid. Use this parameter to match probe reading to confirmed liquid level.

  • Page 34: Mpi-F Application Type Parameters

    • MPI-F Application Type Parameters Application 0 - Distance Register Function Value Range 40400 Device Address 1 to 247 40401 Units 1 = Feet, 2 = Inches, 3 = Meters 40402 Application Type 40403 Volume Units 40404 Decimal (Calculated) 0 - 3 Application 1 - Level Register Function...
  • Page 35 Application 3 - Volume of Standing Cylindrical Tank ± Conical Bottom Register Function Value Range Diameter 40400 Device Address 1 to 247 40401 Units 40402 Application Type 40403 Volume Units 1 - 7 40404 Decimal (Calculated) 0 - 3 40405 Max Distance (factory set) 40406...
  • Page 36 Application 5 - Volume of Horizontal Cylindrical Tank ± Hemispherical Ends Register Function Value Range 40400 Device Address 1 to 247 40401 Units 40402 Application Type 40403 Volume Units 1 - 7 40404 Decimal (Calculated) 0 - 3 40405 Max Distance (factory set) 40406 Full Distance...
  • Page 37 Application 7 - Pounds (Linear Scaling) Register Function Value Range 40400 Device Address 1 to 247 40401 Units 1 = Feet, 2 = Inches, 3 = Meters 40402 Application Type 40403 Volume Units 40404 Decimal (Calculated) 0 - 3 40405 Max Distance (factory set) 40406...
  • Page 38 Application 10 - Volume of Horizontal Oval Tank Register Function Value Range 40400 Device Address 1 to 247 40401 Units 40402 Application Type 40403 Volume Units 1 - 7 40404 Decimal (Calculated) 0 - 3 40405 Max Distance (factory set) 40406 Full Distance 0 - 32,768 mm...

  • Page 39: Chapter 4: Maintenance

    Chapter 4: Maintenance • General Care Your MPI-F level sensor is very low maintenance and will need little care as long as it was installed correctly. However, in general, you should: • Periodically inspect your MPI-F to ensure the stem and floats are free of any heavy buildup that might impede the movement of the floats.

  • Page 40: Chapter 5: Hazardous Location Installation

    Chapter 5: Hazardous Location Installation and Certification • Intrinsically Safe Installation Drawing for Hazardous Locations Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...
  • Page 41 Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...
  • Page 42 Automation Products Group, Inc. Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

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