MMA Midor User manual

Midor
Measuring and Balancing Device
User Guide for Mobile Devices with OS Android 7.0 and above

Midor 3
rev. 1.2 Android Midor Application User Guide
Contens
Introduction ..........................................................................................................................................................................5
Midor Instrument Features...................................................................................................................................................5
Midor Pressure Measuring Unit ...........................................................................................................................................6
Midor Application Installation...............................................................................................................................................7
Main Application Display......................................................................................................................................................7
Application Setup.................................................................................................................................................................7
Context Menu.......................................................................................................................................................................8
Instrument turn-on................................................................................................................................................................8
Measuring ............................................................................................................................................................................9
Authorisation of Location Services in the Android OS...............................................................................................................................................9
Searching of Pressure Measuring Unit.....................................................................................................................................................................9
Measuring Window.................................................................................................................................................................................................10
Select Valve .............................................................................................................................................................................................................................................. 10
Valve Presetting........................................................................................................................................................................................................................................ 11
Medium...................................................................................................................................................................................................................................................... 11
direct ........................................................................................................................................................................................................................................... 11
Set Requested Flow.................................................................................................................................................................................................................................. 12
Medium temperature................................................................................................................................................................................................................................. 12
Pressure Measuring Zero, Deaeration of Measuring Hoses .................................................................................................................................................................... 13
Quick Record ............................................................................................................................................................................................................................................ 14
Projects..............................................................................................................................................................................14
Working with Projects.............................................................................................................................................................................................14
Project Window, Project Tab..................................................................................................................................................................................15
Project Context menu.............................................................................................................................................................................................15
New........................................................................................................................................................................................................................................................... 15
Open.......................................................................................................................................................................................................................................................... 16
Save.......................................................................................................................................................................................................................................................... 16
Save as ..................................................................................................................................................................................................................................................... 16
Mail this Project......................................................................................................................................................................................................................................... 16
Rename Project ........................................................................................................................................................................................................................................ 16
Project Window, Branches Tab..............................................................................................................................................................................17
Branches Context menu.........................................................................................................................................................................................17
Add Branch ............................................................................................................................................................................................................................................... 17

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Android Midor Application User Guide rev 1.2
Rename Branch.........................................................................................................................................................................................................................................18
Move Branch Up........................................................................................................................................................................................................................................18
Delete Branch............................................................................................................................................................................................................................................18
Move Branch Down...................................................................................................................................................................................................................................18
Records..............................................................................................................................................................................19
Record Info Tab..................................................................................................................................................................................................... 19
RECORD Context Menu........................................................................................................................................................................................ 19
New Record...............................................................................................................................................................................................................................................20
Open Record .............................................................................................................................................................................................................................................21
Read Record .............................................................................................................................................................................................................................................21
Save Record as.........................................................................................................................................................................................................................................21
Mail this record ..........................................................................................................................................................................................................................................21
Export Record as csv ................................................................................................................................................................................................................................22
Export and Mail as csv ..............................................................................................................................................................................................................................22
Export Record as xls .................................................................................................................................................................................................................................22
Export and Mail as xls ...............................................................................................................................................................................................................................22
RECORD ITEMS Tab............................................................................................................................................................................................ 22
Heating Calculations..........................................................................................................................................................23
Calculate Presetting............................................................................................................................................................................................... 23
Pressure Loss Calculation ..................................................................................................................................................................................... 24
Available Pressure Calculation............................................................................................................................................................................... 24
Calculate Valve Authority....................................................................................................................................................................................... 25
....................................................................................................................................................25
Pressure Measuring Unit Maintenance..............................................................................................................................27
Sintered Filters Replacement................................................................................................................................................................................. 27
Batteries Replacement........................................................................................................................................................................................... 27
Troubleshooting .................................................................................................................................................................28
Safety and Device Disposal Instructions ...........................................................................................................................29
Batteries................................................................................................................................................................................................................ 29
Information for Users on Collection and Disposal of Used Devices and Batteries................................................................................................... 29
Specifications.....................................................................................................................................................................30

Midor 5
rev. 1.2 Android Midor Application User Guide
Introduction
The Midor instrument is designed for hydraulic balancing of heating and cooling systems. It allows measuring static
pressure, differential pressures and flow in the said systems. Using the differential pressure measured by the
measuring component in the system, Midor calculates the flow that runs through the component (balancing valve or
measuring orifice). The application corrects the calculated flow also for anti-freeze mixes in cooling systems.
The flow can be measured in all branches of the whole hydraulic system and the whole system can be balanced.
Midor Instrument Features
the core of the instrument consists of the pressure measuring unit that measures pressure in balancing components of
hydronic systems and sends the measured values to the Bluetooth Low Energy (hereinafter just BLE) technology in a
mobile device with the Android or iOS operating systems. The Midor measuring unit is very robust with a massive
heavy-duty frame that can withstand a fall from 2 meters. Inside the measuring unit, there is a hydraulic section with a
built-in symmetrical differential sensor for accurate digital processing of measured data. The Midor measuring
instrument is very accurate and this accuracy is based on:
• Very accurate measuring of the pressure with a fully differential pressure sensor and 24-bit data processing from the
pressure sensor.
• Possibility of resetting the differential pressure for pressure measuring of very low differential pressures. The resetting
of measuring is done at the hydraulic bypass of pressure inputs.
The Midor instrument uses advanced digital technologies that compensate inaccuracies usually occurring in pressure
measuring, such as temperature dependencies and measuring non-linearity.
Another feature of the Midor instrument consists in recording measurements. Data from measuring can be recorded
independently and directly in the pressure measuring unit. The measuring unit is equipped with a time circuit that allows
programming a periodical recording of measurement independently on the application in the mobile device. Once the
recording is complete, the measuring unit turns off and the record remains stored in the measuring unit until the
application reads it out. Another method of recording consists in recording of current values directly into the mobile
device.

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Android Midor Application User Guide rev 1.2
Using the Bluetooth Low Energy transmission, the Midor application communicates with the measuring unit; a user-
friendly interface can be handled via the user mobile device. The application processes pressure values and allows
displaying the flows in the measured system based on features of balancing components stored in the mobile device’s
storage. The application stores in the mobile device’s storage balancing valves of most leading European producers. If,
incidentally, a valve in not contained in the application, you can enter the valve’s Kv and the application will calculate
the flow from this value.
You can handle the software by direct touching required fields, or you can use the menu in the upper section of the
screen.
The user software contains data of valves from many manufacturers, which makes the flow calculation on the required
valve easier.
Midor Pressure Measuring Unit
Positive pressure input
Negative pressure input
Zero knob
Keyboard Battery cover

Midor 7
rev. 1.2 Android Midor Application User Guide
Midor Application Installation
Find the Midor application in Google play and install it in your mobile device.
Main Application Display
On the home page of the application are buttons that directly navigate to the
different parts of the Midor application.
Application Setup
Press the Settings button in the introductory window where you can set up
the initial features of the application.
In the Measuring section, these are units for measuring the pressure, flow
and temperature. Further, you can turn on/off here the sound for the whole
Midor application.
Turn on/off the sound in the Midor application by pressing the Sound button.
In the Records section, you can enter Initial description, Initial record
location.
In the Projects section, you can enter Initial project name, Initial branch
name, Initial project file name.
In the Sensor preferences, the Bluetooth address of the pressure unit is

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Android Midor Application User Guide rev 1.2
Stored after activating the Always use the selected device option in Measuring.
After the application installation is complete, this item remains empty. When
you will be measuring with the automatic connection of one unit without
searching and you will want to connect another pressure unit, you must delete
this field.
Once the Battery type is selected, enter the used AAA battery type in the
pressure unit. This setup is very important for the correct calculation a display
of the battery condition indication. You can find the battery type on the battery.
Almost all rechargeable batteries sized AAA are of the NiMH type. Well-known
and of high quality are Eneloop batteries from Panasonic.
Context Menu
If you will press icon on arbitrary application window, the menu related to relevant window appears. This menu is
called Context menu.
Instrument turn-on
Very Important! Warning!
When switched on, the instrument initialises itself. This take several seconds and the green light indicator on the
instrument is flashing quickly during the initialisation. Do not establish the Bluetooth connection with the measuring
instrument until this light indicator stops flashing and is on steadily. If the green light indicator fleshes with 1 second
period, there is an error in the BLE module initialisation. Try to switch off the instrument, wait for several seconds and
turn it on again.

Midor 9
rev. 1.2 Android Midor Application User Guide
Measuring
Once the Measuring button is selected, a window is displayed on the
introductory screen for searching and connecting with the measuring unit.
Authorisation of Location Services in the Android OS
Following changes in Google Play Services, Android OS now requires
authorisation of Location Services when using Bluetooth technology. This
can be turned on manually in the mobile phone settings under
Personal/Location.
Searching of Pressure Measuring Unit
the Midor application will search for and display available Midor devices. Select your Midor unit
from the displayed list using the last four digits of the serial number. This function occurs in many
other places in the Midor application. If you check the Always use the selected device option,
the Midor application will connect with this unit automatically and will not search for any other.
Once the Measuring button is pressed, the Measuring screen will appear straight away.
You can cancel the Always use the selected device from the Application Setup, the Sensor
Preferences/Always use Bluetooth Address option. Here, delete the Bluetooth address of your
pressure unit module.

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Android Midor Application User Guide rev 1.2
Measuring Window
Based on the differential pressure sensed and the medium measured, i.e. its temperature, valve and
its preset, the application displays the differential pressure in measuring points of the attached fitting
and the flow through this fitting.
The status line in the screen’s bottom displays several important pieces of information:
1. The last four digits of the serial number of the pressure unit connected.
2. The percentage status of the battery of the pressure unit connected.
3. The validity of calibration of the pressure unit connected.
4. The firmware version number of the pressure unit connected.
Measuring Context Menu Tabs
Select Valve
You can select the required valve by pressing the
Select valve selection list.
After clicking on the blue Manufacturer line, the list of
valve manufacturers contained in the Midor instrument
database will open. Select the manufacturer required
by you. The database of valves in the instrument
contains valves from the world’s leading manufacturers;
when selecting the valve and its preset, the Kv values
provided by the manufacturer will be used for the flow
calculation. The Kv values are recalculated by the
mathematical function from manufacturers’ tables.
After clicking on the blue Select Type line, the list of