APG MNU IS Series User manual

APG
R
Doc # 9005166
Part #200177
Rev. A, 09/2018
MNU IS Ultrasonic Modbus Sensors
User Manual
Intrinsically Safe Ultrasonic Modbus Sensor

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Table of Contents
Introduction ................................................................................................................ iii
Warranty and Warranty Restrictions.................................................................... iv
Chapter 1: Specications and Options..................................................................... 1
Dimensions ........................................................................................................................................1
Specications ................................................................................................................................... 2
Model Number Congurator.......................................................................................................... 3
Electrical Pinout Table, Power Supply Table, and System Wiring Diagrams................. 4-6
Chapter 2: Installation and Removal Procedures and Notes..............................7
Tools Needed..................................................................................................................................... 7
Installation Notes ............................................................................................................................ 7
Physical Installation Notes ........................................................................................................... 7
Electrical Installation ..................................................................................................................... 8
Mounting Instructions ................................................................................................................... 8
Software Installation....................................................................................................................... 8
Removal Instructions ..................................................................................................................... 8
Chapter 3: Programming ............................................................................................9
Modbus Programming .................................................................................................................... 9
Modbus Programming via Internet with RST-5003 or LOE .................................................... 9
Modbus Programming with APG Modbus Software .............................................................. 10
MNU IS Modbus Register Lists.............................................................................................. 10-11
MNU IS Modbus Sensor Parameters ....................................................................................12-16
MNU IS Web / Independant Modbus Alarm Parameters ................................................. 17-19
MNU IS Modbus Application Parameters .......................................................................... 19-24
Chapter 4: QuickMode Operation and Notes........................................................25
QuickMode Description................................................................................................................ 25
QuickMode Operation ................................................................................................................... 25
QuickMode Operation Notes ....................................................................................................... 25
QuickMode Communication Notes............................................................................................26
QuickMode Settings......................................................................................................................26
Using QuickMode .......................................................................................................................... 27
QuickMode Timing Example.......................................................................................................28
Chapter 5: Maintenance ...........................................................................................29
General Care....................................................................................................................................29
Calibration .......................................................................................................................................29
Troubleshooting.............................................................................................................................30
Repair and Returns........................................................................................................................30

iii
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Introduction
Thank you for purchasing a Series MNU IS Intrinsically Safe Modbus Ultrasonic Sensor from APG. We
appreciate your business! Please take a few minutes to familiarize yourself with your MNU IS and this
manual.
MNU IS ultrasonic sensors are rugged, low-power units, rated Intrinsically Safe for hazardous location
installations. They feature APG’s new QuickStart Mode for power-saving, on-demand measurements and
optional Gas Discharge Tube surge protection. All MNU IS sensors are fully programmable via RS-485
Modbus communications, and with APG Modbus software and an RS-485-to-USB converter.
Reading your label
Every APG instrument comes with a label that includes the instrument’s model number, part number, serial
number, and a wiring pinout table. Please ensure that the part number and pinout table on your label
match your order.
IMPORTANT: Your MNU IS sensor MUST be installed according to drawing 9005002
(Hazardous Installation Drawing) located at the back of the manual to meet listed approv-
als. Faulty installation will invalidate all safety approvals and ratings.
Certications
Class I Division 1, Groups C& D, T4
Class I, Zone 0, AEx ia IIB T4 Ga
Ex ia IIB T4 Ga
IECEx SIR 18.0048X
Ex ia IIB T4 Ga
0344 Ta: -30°C to 60°C
SIR 18ATEX2193X
II 1G Ex ia IIB T4 Ga
Ta: -30°C to 60°C
US
C
237484
Table of Contents
Chapter 6: Hazardous Installation Drawing and Certication......................... 31
Hazardous Installation Drawing................................................................................................. 31
CSA Certicate of Compliance.............................................................................................. 32-35
EC Declaration of Conformity .....................................................................................................36
IECEX Certicate of Conformity........................................................................................... 37-39
Appendix..................................................................................................................... 40
Appendix A: MNU IS Default Holding Register Values .........................................................40
Appendix B: MNU IS Barrier Notes............................................................................................ 41

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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. 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.

1
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Chapter 1: Specications and Options
• Dimensions
MNU-IS-2424 MNU-IS-2425
MNU-IS-6424 MNU-IS-6425
3/4” ø NPT
Threads
2” ø NPT
Threads
1.98”
50.29mm
1.47”
37.34mm
5.08”
129.03mm
3.05”
77.47mm
7.21”
183.13mm
Housing Option 2