AUTOMATION P R O D U C T S GROUP, INC. Operator’s Manual MPX Series Magnetostrictive Level Sensors Doc 9003761 Rev. B 4/13 Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • E-mail: sales@apgsensors.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Table of Contents Warranty......................................................................................... 3 How does it work?........................................................................... 4 Installation....................................................................................... 5 Wiring........................................................................................... 6-8 Hazardous Location Wiring.............
Rev. B, 4/13 MPX Series Magnetostrictive Level Sensors •Warranty and Warranty Restrictions APG warrants its products to be free from defects of material and workmanship and will, without charge, replace or repair any equipment found defective upon inspection at its factory, provided the equipment has been returned, transportation prepaid, within 24 months from date of shipment from factory.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • How does it work? The MP series level sensors are based on magnetostrictive technology. Inside the stainless steel stem is a wire waveguide made of a metal that has magnetostrictive properties. Magnetostrictive means that the atoms in the metal realign in the presence of a magnetic field causing the metal to temporarily deform or elongate very slightly. Inside the float(s) are permanent magnets.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • Installation The MPX should be installed in an area, indoors or outdoors, which meets the following conditions: • • • • • • • • • • The ambient temperature does not exceed -40oC to 85oC (-40oF to +185oF) Relative humidity up to 100% Pollution Degree 2 Measurement Category II Altitude 2000 meters or less. Locate the Probe away from strong magnetic fields, such as those produced by motors, transformers, solenoid valves, etc.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • Sensor Wiring All MPX models will operate on 10-24 Vdc. Always use a high quality power source that will deliver clean, stable voltage. Modbus RS-485 Wiring (MPX-E1 and MPX-R1 models) Always use shielded cable. APG recommends using twisted-pair cable for all Modbus network wiring.
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Hazardous Area B CSA/UL Listed Hazardous Location Cable CSA/UL Listed Conduit Non-Hazardous Area Vmax ≥ Voc, Ca ≥ Ccable + Ci La ≥ Lcable + Li Field Wiring Apparatus Non-Incendive Certified Associated Non-Hazardous Area Vmax = 28VDC, Imax = 200ma, Ci = 0nF, Li = 0 Hazardous Area Earth Ground Connection Non-Incendive Wiring for Installation in 0 Class I Division 2 Groups C and D, Max. Tep. 85 C Install in accordance with Section 18 of the CEC or Article 500 of the NEC.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • Sensor Communications Modbus (RS-485) The MPX-E1 and MPX-R1 series utilizes standard Modbus RTU protocol (RS485). The sensor can only operate as a slave device. For more information about Modbus RTU, please visit www.modbus.org. The sensor will transmit at: 9600 baud, 8 bits, 1 Stop Bit, No parity (allow a minimum delay of 300 ms between transactions).
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Configuring Software Communications All MPX versions use the same APG Modbus software for sensor programming. Use the following steps to configure the software communications. Step 1: select “Communication” from the “Configure” menu. Step 2: select the appropriate Sensor Type, as shown below, then click the “Save Config” button at the bottom of the screen.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Step 3: select the mode of communication as shown below. Modbus (RS-485): (MPX-E1 and MPX-R1) OR Select the appropriate Comm Port when using direct serial communications. Check the “USB Communications (RST-6001)” box when using the RST6001 communications module. 4-20 mA: check the box labeled “USB Communication (RST-4100)” (MPX-E2, MPX-R2, MPX-E3, MPX-R3) Automation Products Group, Inc. APG...
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Configuring Software Communications for Multiple Sensors Step 1: select the total number of sensors you wish to read. Step 2: change the “Sensor #” boxes to match the address’ of the target sensors. Step 3: Change the Description labels as desired. The Description is used to differentiate between sensors in other areas of the software. Step 4: Click “Save Config” then “Close”. (continued) 12 Automation Products Group, Inc. APG...
Rev. B, 4/13 MPX Series Magnetostrictive Level Sensors Step 5: Click on “Start”. The sensor readings should populate as the software cycles through each sensor. START Step 6: Click on a sensor description to access that sensor’s parameters. Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Using the Software Programming Window Click on the desired sensor description to open that sensor’s programming window. Sensor readings are displayed in the Input Registers table. The register values should automatically populate. If not, click “Receive All” to retrieve the register values from the sensor. (continued on next page) 14 Automation Products Group, Inc. APG...
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 To change an individual parameter, click on the value you wish to change, enter the desired value, then click the adjacent “Send” button to implement the change. To send all the register values as currently listed, click “Send All” To retrieve the register values saved in a sensor, click “Receive All” A green window indicates successful communication. A yellow window indicates a communication failure.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Modbus Register Lists Input Registers (0x04): Register 30300 30301 30302 30303-30304 30305-30306 Returned Data Raw Top Float Reading (in mm, unsigned) Raw Bottom Float Reading (in mm, unsigned) Temperature Reading (in 0C, signed) Calculated Top Float Reading (in selected Units) Calculated Bottom Float Reading (in selected Units) NOTE: the Calculated Readings will be returned without a decimal place.
Rev. B, 4/13 MPX Series Magnetostrictive Level Sensors (continued) Register Function Value Range 40415 Sample Rate 50 to 1000 msec.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Application Parameters Device Address (1 to 255) (40400) Each device within the Modbus network must be assigned a unique address. Each MPX sensor should be connected to the network individually and assigned an address. Each sensor is set to address 1 by default.
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MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Application Type 6: Volume of spherical tank Register Function Value Range 40402 Application Type 6 40403 Volume Units 1 to 7 40404 Decimal Place 0 to 3 40406 Full Distance Typically = Blanking 40407 Empty Distance 0 to 10364 mm 40436-40437 Tank Diameter 0 to 100,000 mm Full Distance Empty Distance Diameter Automation Products Group, Inc. APG...
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Application Type 7: Pounds Allows the user to apply a conversion multiplier to the calculated level reading. NOTE: the decimal point for the multiplier (40436-40437) is always assumed to be in the thousands position, therefore a setting of 206250 = 206.250 actual multiplier. Example: suppose the product in a tank weighs 206.25 pounds for every inch of level.
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MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Application Type 11: Curve Fit Allows the sensor to mimic a tank strapping chart by using a 3rd degree polynomial equation to produce a “curve fit” approximation.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Once the all data points have been entered, click the “Calculate” button to determine the values required for the “curve fit” calculation. NOTE: before clicking “Calculate” ensure that there is only one empty row following the last line of data (as shown). Use the keyboard “Delete”key to remove any addition empty rows.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Volume Units (1 to 7) (40403) Determine the units of measure for all volumetric Application Types. 1 = Cubic Feet 2 = Million Cubic Feet 3 = Gallons 4 = Cubic Meter 5 = Liters 6 = Cubic Inches 7 = Barrels Decimal Place (0 to 3) (40404) Set the number of digits after the decimal place to be included in the calculated reading (Input registers 30303-30304 and 30305-30306) Example: a measurement of 1126.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Full Distance Increase the factory set Empty Distance by “X” in millimeters (as shown below). Empty Maximum Distance Distance X (in mm) Example for X = 25 mm (1”) Factory settings: Maximum distance = 1500 mm (to end of stem) Empty Distance = 1500 mm (to end of stem) Adjusted Settings: Max Distance = 1500 mm Empty Distance = 1525 mm 30 Automation Products Group, Inc. APG...
Rev. B, 4/13 MPX Series Magnetostrictive Level Sensors • Signal Processing and Control (advanced users only) The parameters in this section (pages 24-25) are advanced factory settings and should not normally need adjustment. Sensitivity (0 to 100%) (40408) Controls the level of amplification applied to the float signal. The sensitivity setting is expressed as a percentage; 0 to 100%.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Out of Range Samples (1 to 255) (40414) Determines the number of consecutive level readings that fall outside of the acceptance window before the “out of range” target is recognized as being legitimate and figured into the averaging buffer. Out of Range readings detected fewer times than the Out of Range Samples setting will be rejected. Sample Rate (50 to 1000 msec) (40415) Sets the interval between float readings.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • 4-20 mA Settings MPX-E2, MPX-R2 and MPX-E3, MPX-R3 models only. *4 mA Set-point (0 to 10364) (40426) Sets the measurement value associated with a 4 mA signal. The set-point is based on raw measurement value of register 30300 (in millimeters), and not the calculated value of register 30303. *20 mA Set-point (0 to 10364) (40427) Sets the measurement value associated with a 20 mA signal.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 •Web Alarming (40430 to 40435) When the MP is interfaced with an LOE or RST-5002 web-enabled master device, the MP can be configured to generate website alarms via levelandflow. com. Refer to the LOE or RST-5002 user manual for more information about website alarms and using levelandflow.com.
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MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Saving Sensor Parameter Configurations Click on “File”, then select “Save Mode Values”. Choose a file name and the location where you wish to save the file, then click “Save” Recalling Saved Sensor Configurations Click on “File”, then select “Load Mode Values”. Choose a file you wish to upload, then click “Open”. This will load the parameter values into the software.
Rev. B, 4/13 MPX Series Magnetostrictive Level Sensors • Inspection and Maintenance Periodically inspect the MPX unit to ensure that the stem is free of any heavy buildup that might impede the movement of the float. If sediment or other foreign matter becomes trapped between the stem and the float, detection errors can occur. Ensure that the housing cover is snuggly secured. If the cover becomes damaged or is misplaced, order a replacement immediately. Automation Products Group, Inc. APG...
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • Specifications Electrical Connection: terminal block Supply Voltage: 12 to 24 VDC Current Draw Modbus: 28 mA 4-20 mA: 22 mA (single), 44 mA (dual) Output MPX-x1: modbus (RS-485) MPX-x2: 4-20 mA loop (2 wire) MPX-x3: dual 4-20 mA loop (3 wire) Resolution Modbus: 1 mm 4-20 mA: 14 bit Accuracy: 0.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • MPX-R Dimensions 5.72” 5.00” 4.30” 3/4” NPT Ø 0.25” 7.00” 10” Dead-Band Float Options U&V (from reference) S&T Ref. 2.80” Ref. 5.50” 3.07” 3.03” Y&Z W&X Ref. 6” Dead-Band 5.00” Ref. 5.50” (from reference) 5.10” Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com 3.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 • MPX-E Dimensions 5.72” 4.30” 5.00” 3/4” NPT Ø 0.25” 7.00” 6” Dead-Band (from reference) Float Options A&B 2.00” C&D Ref. 1.63” 2.06” 1.5” Dead-Band F E (from reference) Ref. 1.38” Ref. 1.87” 1.78” 40 Ref. 2.20” 1.47” Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Model Number Configuration MPX – A E R A B – C D – E F Stem Type 0.5 in. diameter 1 in. diameter B Output 1 Modbus RTU 2 4-20 mA (loop powered, 2-wire) 3 Dual 4-20mA (loop powered, 3-wire) – G H D Float 2 (optional) Refer to float options in sections C N None E Mounting Options (include size) F FF Flange, 150# ANSI (size: 2, 2.5, 3, 4, 5, 6 in.) R RF Flange, 150# ANSI (size: 2, 2.5, 3, 4, 5, 6 in.) S Tri-Clamp (size: 2, 2.5, 3, 4 in.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Certificate of Compliance Certificate: 2397437 Master Contract: 237484 Project: 2397437 Date Issued: May 18, 2011 Issued to: Automation Products Group Inc 1025 West 1700 North Logan, UT 84321 USA Attention: Karl Reid The products listed below are eligible to bear the CSA Mark shown with adjacent indicators 'C' and 'US' for Canada and US or with adjacent indicator 'US' for US only or without either indicator for Canada only.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Certificate: 2397437 Master Contract: 237484 Project: 2397437 Date Issued: May 18, 2011 Notes: • The model code breakdown is as follows: a= E or R; b= 1, 2 or 3; c= A, B, C, D, E, F, Z, or Y; d= N, B, D, or Y; e= F, R, P, N, or O; f= W or S; g= A or B; and hhh= 12–153 for the 1/2" stem or 48–300 for the 1" stem.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Certificate: 2397437 Master Contract: 237484 Project: 2397437 Date Issued: May 18, 2011 manner can be used. The nameplate is affixed to the top of the enclosure. Labels, if shown in the report, may vary slightly in layout, provided that the required information continues to be shown.
MPX Series Magnetostrictive Level Sensors Rev. B, 4/13 Certificate: 2397437 Master Contract: 237484 Project: 2397437 Date Issued: May 18, 2011 PERMANENTLY CONNECTED EQUIPMENT requires the special considerations to satisfy the CEC and the Canadian deviations in the standard, including overcurrent and fault protection as required. Equipment Operation: This includes explanations of operating controls and warning symbols used, and instructions for interconnection, replacement of consumables (e.g.
MPX Magnetostrictive Level Sensors Rev. B, 4/13 Notes 46 Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
MPX Magnetostrictive Level Sensors Rev. B, 4/13 Notes Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
AUTOMATION P R O D U C T S GROUP, INC. APG...Providing tailored solutions for measurement applications Automation Products Group, Inc. Tel: 1/888/525-7300 1/435/753-7300 Fax: 1/435/753-7490 e-mail: sales@apgsensors.com www.apgsensors.com Automation Products Group, Inc. 1025 W. 1700 N.
