background image

MPX Magnetostrictive Level Sensors

Installation Guide

For MPX-T

R

APG

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

Thank You

Thanks for purchasing an MPX-T 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 888-
525-7300.

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

Table of Contents

 

5

Installation Guidelines & Instructions

The MPX should be installed in an area--indoors or outdoors--which meets the following 
conditions:

• 

Ambient temperature between -40

°

C and 85

°

C  (-40

°

F to +185

°

F)

• 

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 chemicals incompatible with Titanium Grade 2

• 

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.

• 

No ignition hazards exist due to impact or friction with the titanium stem.

• 

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-T floats are 

typically installed by customer.

4

Dimensions

 

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.

Part # 122950-0032

Doc #9004815 Rev C

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:

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. 

 

SAMPLE

MPX-T5B-JI-F4SC-120-3D

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.

1

Description

2

How To Read Your Label

3

Warranty

MPX-T Housing Dimensions

Figure 5.1

  

UP

Taper

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.

5.00”

5.71”

Ø 0.27”

4.21”

6.84” - 6.97”

3/4” NPT

1.90”

4.94”

GND 
SCREW

ZERO
REFERENCE

3/4” NPT
Housing
Connection
Location

 

IMPORTANT

: MPX-T 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.

Warning:

 -- The model MPX-T contains titanium in excess of 7.5% for Group II and care 

needs to be taken to avoid an ignition hazards due to impact or friction;
AVERTISSEMENT -- Le MPX-T modèle contient du titane en excès de 7,5% pour le groupe 

II et les soins doivent être prises pour viter une inflammation des dangers dus à des 

chocs ou frottements.

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 NON-
HAZARDOUS;
AVERTISSEMENT -- RISQUE D’EXPLOSION -- AVANT DE DECONNECTER L’EQUIPEMENT, 
COUPER LE COURANT OU S’ASSURER QUE L’EMPLACEMENT EST DESIGNE NON 
DANGEREUX.

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.

 

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 

use.

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.

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 ferruls on wires, if possible.

• 

Replace housing cover.

• 

For EMI protection on MPX-T4 and -T5 models, either connect the grounding screw (see 
Dimensions section 4) to an earth ground, or ensure that tank mounting of MPX is grounded.

See Electrical Connections and System Wiring Diagrams (section 6) for Modbus and 4-20 mA 
wiring examples.

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.

Отзывы: