Apg Mpx Series Magnetostrictive Level Sensors Installation Guide

MPX Series Magnetostrictive Level Sensors

Thank You
Thanks for purchasing an MPX series magnetostrictive level sensor from us! We appreciate your business and your trust. Please take a moment to familiarize yourself with the product and this manual before installation. If you have any questions, at any time, don’t hesitate to call us at 888525-7300.
NOTE: Scan the QR code to the right to see the full user manual on your tablet or smartphone. Or visit www.apgsensors.com/support to find it on our website.

MPX Magnetostrictive Level Sensors Installation Guide
For MPX-E, MPX-E Chemical, and MPX-R

Table of Contents
1.Description 2. How To Read Your Label 3. Warranty 4. Dimensions

5. Installation Guidelines & Instructions
6. Sensor and System Wiring
7.General Care

8. Repair Information 9. Hazardous Location Wiring

APG
R
Automation Products Group, Inc. 1025 W 1700 N Logan, UT 84321 www.apgsensors.com | phone: 888-525-7300 | email: [email protected]

Part # 122950-0003 Doc #9004081 Rev G

1 Description
The MPX series magnetostrictive level sensor provides highly accurate and repeatable level readings in a wide variety of liquid level measurement applications. It is certified for installation in hazardous areas in the US and Canada by CSA for Class I, Division 1 & 2 and Class I, Zones 1 and 2 environments.
2 How To Read Your Label
Each label comes with a full model number, a part number, and a serial number. The model number for the MPX will look something like this:
SAMPLE: MPX-R3-ZY-F2.5WB-120
The model number correlates with all the configurable options and tells you exactly what you have. Compare the model number to the options on the datasheet to identify your exact configuration. You can also call us with the model, part, or the serial number and we can help you.
You’ll also find all hazardous certification information on the label.
3 Warranty
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. Contact Technical Support to receive a Return Material Authorization before shipping your product back.
Scan the QR code below to read the full explanation of our Warranty on your tablet or smartphone.

5 Installation Guidelines & Instructions
The MPX should be installed in an area–indoors or outdoors–which meets the following conditions:
· Ambient temperature between -40°F and 185°F (-40°C to 85°C) · Relative humidity up to 100% · Altitude up to 2000 meters (6560 feet) · IEC-664-1 Conductive Pollution Degree 1 or 2 · IEC 61010-1 Measurement Category II · No chemical corrosive to stainless steel (such as NH3, SO2, Cl2, etc.) (Not applicable to plastic-
type stem options.) · Ample space for maintenance and inspection

Additional care must be taken to ensure: · The probe is located away from strong magnetic fields, such as those produced by motors,
transformers, solenoid valves, etc. · The medium is free from metallic substances and other foreign matter. · The probe is not exposed to excessive vibration. · The float(s) fit through the mounting hole. If the float(s) does/do not fit, it/they must be
mounted on the stem from inside the vessel being monitored. · The float(s) is/are oriented properly on the stem (See Figure 5.1 below). MPX-E floats will be
installed by the factory. MPX-R floats are typically installed by customer.

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 “N” indicating the top of the float. Remove sticker prior to
UP use.

Figure 5.1

4 Dimensions

MPX-E Chemical Housing Dimensions

3/4″ NPT

4.29″

1/2″NPT

3.70″

4.29″

5.71″ 4.92″

3.70″

5.00″

4.25″

3/4″ NPT 1/2″ NPT

9.30″ 8.51″

9.30″ 8.51″

2x .27″

S1 Dead-Band S2 Dead-Band

ZERO REFERENCE

ZERO REFERENCE

Min. 12″ Max. 153″
3/4″ NPT 4.94″ 4.15″
2.38″ GND SCREW

Note: for dual dimensions, largeFloaht Ooputiosnsing dimensions are above small housing
H & K
dimens2i.o00n” s.
Float Ref.

3.50″
MPX-E Housing Dimensions

4.21″ 3.74″

5.71″ 4.92″ 5.00″ 4.25″

7.32-7.44″ 6.53-6.65″
ZERO REFERENCE
Note: For dual dimensions, large housing dimensions are above small housing dimensions.

3/4″ NPT Housing Connection Location
Ø 0.27″

Installation Instructions: · If your sensor’s stem and floats fit through the mounting hole, carefully lower the assembly into the vessel, then secure the sensor to the vessel. · If the floats do not fit, mount them on the stem from inside the vessel being monitored. Then secure the sensor to the vessel. · For sensors with float stops, refer to the assembly drawing included with the sensor for float stop installation locations.
Warning! The Kynar stem is susceptible to thermal expansion when the process temperature exceeds 73°F / 23°C. This expansion can be calculated as follows: Expansion = (Max Process Temperature (°F) -73)*.000108 * Kynar Stem Length). This is the distance that must be left between the end of the Kynar stem and the tank bottom at the maximum process temperature.
Electrical Installation Instructions: · Remove the housing cover of your MPX. · Feed system wires into MPX through 3/4″ NPT conduit openings. Fittings must be UL/CSA Listed for CSA installation and IP65 Rated or better. · Connect wires to MPX terminals. Use crimped ferrules on wires, if possible. · Replace housing cover. · For EMI protection on MPX-E4 and MPX-R4 models, either connect the grounding screw (see Dimensions section 4) to an earth ground, or ensure that tank mounting of MPX is grounded.
IMPORTANT: WARNING — A SEAL SHALL BE INSTALLED WITHIN 18 inches OF THE ENCLOSURE; AVERTISSEMENT — UN SCELLEMENT DOIT ETRE INSTALLÉ A MOINS DE 18 inches DU BOITIER.

3/4″ NPT

MPX-R Housing Dimensions

4.21″

5.71″ 5.00″

4.94″
1.90″ GND SCREW

6.84″ – 6.97″
ZERO REFERENCE

3/4″ NPT Housing Connection Location
Ø 0.27″

6 Sensor and System Wiring Diagrams Modbus System Wiring

Power Supply

+12-24 Vdc GND

Use Shielded Cable

Server Device

RS-485 A

RS-485 B

120 terminating resistor

Note: Earth Ground terminal is factory connected to internal housing ground lug.

MPX Modbus series sensor
Sensor 1
V+ B A GND EARTH GND

MPX Modbus series sensor
Sensor 2
V+ B A GND EARTH GND

MPX Modbus series sensor
Sensor 3
V+ B A GND EARTH GND

120 terminating resistor at last sensor

IMPORTANT: For EMI protection on an MPX-E4 or -R4, either connect the grounding screw (see section 4) to an earth ground, or ensure that tank mounting of the MPX is grounded.

Modbus System Wiring with RST-6001

Power Supply

+12-24 Vdc GND

Use Shielded Cable

RST-6001

A

Modbus

B -5V

Controller

+5V

USB to computer with APG Modbus software

Equivalent 120 terminating resistor internal to RST-6001

Note: An independent +12-24 Vdc power supply is required when using an RST-6001 Modbus Controller. The RST-6001 can only supply ±5 Vdc, not the +12-24 Vdc required by the MPX.
Note: Earth Ground terminal is factory connected to internal housing ground lug.

MPX Modbus series sensor
Sensor 1
V+ B A GND EARTH GND

MPX Modbus series sensor
Sensor 2
V+ B A GND EARTH GND

MPX Modbus series sensor
Sensor 3
V+ B A GND EARTH GND

120 terminating resistor at last sensor

IMPORTANT: Refer to section 9 for Hazardous Location Wiring.

NOTE: For APG Modbus programming instructions, please see MPX user manual. APG Modbus software can be downloaded from www.apgsensors.com/support.

4-20 mA Wiring
4-20 mA Single Float Loop Wiring
(MPX-E2 and MPX-R2 Series)

Sensor
12-24 Vdc Out

+- Power Source
(12-24 Vdc)
Receiver
Input Com

4-20 mA Dual Float Loop Wiring
(MPX-E3 and MPX-R3 Series)

Sensor
12-24 Vdc Out 1 Out 2

+- Power Source
(12-24 Vdc)
Receiver
Input 1 Input 2 Com

Sensor
12-24 Vdc Out 1 Out 2

OR

+-
Power Source (12-24 Vdc)

Receiver 1
Input Com

Receiver 2
Input Com

4-20 mA Programming Wiring

Programming configuration is for programming ONLY. After programming, sensor must be reintegrated to 4-20 mA loop for proper system operation.

USB to computer with APG Modbus software

RST-4100

Programming Module and APG Modbus software required for programming MPX-E2, -R2 and MPX-E3, -R3 series sensors.

MPX-E2, -R2 or MPX-E3, -R3 series sensor.
Sensor
12-24 Vdc Out (1) Out 2

Out 24V

Note: a minimum of 14 Vdc is required to establish communications with the RST-4100

Load Resistor
(150 to 700 ) Wired in series for
programming.

+
Power
Source
(14- 24 Vdc)
–

IMPORTANT: MPX level sensor MUST be installed according to drawing 9003468 (Hazardous Installation and Non-Incendive Wiring Drawing) in section 9 to meet listed approvals. Faulty installation will invalidate all safety approvals and ratings.

7 General Care
Your 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 MPX unit to ensure the stem is free of any heavy buildup that might impede the movement of the float(s). If sediment or other foreign matter becomes trapped between the stem and float(s), detection errors can occur.
If you need to remove the floats(s) from the stem of your MPX, be sure to note the orientation of the float(s) prior to removal. This will help ensure proper re-installation of the float(s).
Also, ensure that the housing cover is snuggly secured. If the cover becomes damaged or is misplaced, order a replacement immediately.

IMPORTANT: All repairs and adjustments of the MPX level sensor must be made by the factory. Modifying, disassembling, or altering the MPX is strictly prohibited.
8 Repair Information
If your MPX level sensor needs repair, contact us via email, phone, or online chat on our website. We will issue you an RMA number with instructions.
· Phone: 888-525-7300 · Email: [email protected] · Online chat at www.apgsensors.com

DANGER: OPEN CIRCUIT BEFORE REMOVING COVER or KEEP COVER TIGHT WHILE CIRCUITS ARE ALIVE; AVERTISSEMENT — OUVRIR LE CIRCUIT AVANT D’ENLEVER LE COUVERCLE, or GARDER LE COUVERCLE BIEN FERME TANT QUE LES CIRCUITS SONT SOUS TENSION.
DANGER: WARNING — EXPLOSION HAZARD — SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2; AVERTISSEMENT — RISQUE D’EXPLOSION — LA SUBSTITIOND E COMPOSANTSP EUTR ENDRE CE MATERIEL INACCEPTABLE POUR LES EMPLACEMENTS DE CLASSE I, DIVISION 2.
DANGER: WARNING — EXPLOSION HAZARD — DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NONHAZARDOUS; AVERTISSEMENT — RISQUE D’EXPLOSION — AVANT DE DECONNECTER L’EQUIPEMENT, COUPER LE COURANT OU S’ASSURER QUE L’EMPLACEMENT EST DESIGNE NON DANGEREUX.
DANGER: WARNING — POTENTIAL ELECTROSTATIC CHARGING HAZARD – CLEAN ONLY WITH A DAMP CLOTH; AVERTISSEMENT — DANGER DE CHARGE ELECTROSTATIQUE POTENTIEL – NETTOYER SEULEMENT AVEC UN CHIFFON HUMIDE.

9 Hazardous Location Wiring

References

• Industrial Sensor Manufacturer | APG, Inc.