MMA Midor User manual

Midor
Balancing Measuring Device
User Guide for Mobile Devices with iOS v. 10.3

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Rev. 1.1 Midor iOS User Guide
Content
Introduction ..........................................................................................................................................................................5
Midor Instrument Features...................................................................................................................................................5
Midor Pressure Measuring Unit ...........................................................................................................................................6
Midor application installation................................................................................................................................................7
Midor Application Main Display............................................................................................................................................7
Application Setup.................................................................................................................................................................7
Pressure Unit Turn-on..........................................................................................................................................................8
Warning! Very important!..................................................................................................................................................8
Measuring ............................................................................................................................................................................9
Measuring Window...................................................................................................................................................................................................9
Measuring Context Menu Tabs...............................................................................................................................................................................10
Select Valve...........................................................................................................................................................................................................10
Valve Preset........................................................................................................................................................................................................... 11
Medium.................................................................................................................................................................................................................. 11
Kv Direct Setup...................................................................................................................................................................................................... 11
Set Requested Flow...............................................................................................................................................................................................12
Medium Temperature.............................................................................................................................................................................................12
Pressure Measuring Zero, Deaeration of Measuring Hoses .................................................................................................................................................................... 13
Projects..............................................................................................................................................................................14
Project Management..............................................................................................................................................................................................14
Project Window, Project Tab...................................................................................................................................................................................14
Project Context Menu.............................................................................................................................................................................................15
New........................................................................................................................................................................................................................................................... 15
Open.......................................................................................................................................................................................................................................................... 15
Save.......................................................................................................................................................................................................................................................... 15
Save as ..................................................................................................................................................................................................................................................... 15
Send Project via Mail ................................................................................................................................................................................................................................ 16
Project renaming....................................................................................................................................................................................................................................... 16
Project Window, Branches Tab...............................................................................................................................................................................16
Branch Context Menu ............................................................................................................................................................................................17
Add Branch ............................................................................................................................................................................................................................................... 17
Rename Branch........................................................................................................................................................................................................................................ 17
Move Branch up........................................................................................................................................................................................................................................ 17
Delete Branch ........................................................................................................................................................................................................................................... 18

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Move Branch Down...................................................................................................................................................................................................................................18
Recording...........................................................................................................................................................................18
Record Info Tab ..................................................................................................................................................................................................... 19
Record info Context Menu ..................................................................................................................................................................................... 20
New Record...............................................................................................................................................................................................................................................20
Open Record .............................................................................................................................................................................................................................................21
Read Record .............................................................................................................................................................................................................................................21
Send Record via Mail ................................................................................................................................................................................................................................21
Delete Record............................................................................................................................................................................................................................................21
Record Items Tab................................................................................................................................................................................................... 22
Heating Engineering Calculations......................................................................................................................................22
Preset Calculation.................................................................................................................................................................................................. 23
Pressure Loss Calculation ..................................................................................................................................................................................... 24
Available Pressure Calculation............................................................................................................................................................................... 24
Valve Authority Calculation..................................................................................................................................................................................... 25
Maintenance.......................................................................................................................................................................26
Sintered Filters Replacement................................................................................................................................................................................. 26
Battery Replacement ............................................................................................................................................................................................. 26
Troubleshooting .................................................................................................................................................................27
Safety and Device Disposal Instructions ...........................................................................................................................29
Batteries................................................................................................................................................................................................................ 29
Information for Users on Collection and Disposal of Used Devices and Batteries................................................................................................... 29
Specifications.....................................................................................................................................................................30

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Rev. 1.1 Midor iOS 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 processing of data
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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Using the BLE 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.
Midor Pressure Measuring Unit
Positive pressure input
Negative pressure input
Zero knob Batteries Cover
Keyboard

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Midor application installation
Find in App Store the Midor application and install it in your mobile device.
Midor Application Main Display
Start the Midor application.
Application Setup
Press the Setup 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
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

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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 AAAare of the NiMH type. Well-known
and of high quality are Eneloop batteries from Panasonic.
Pressure Unit Turn-on
Warning! Very important!
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.

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Measuring
Once the Measuring button is selected, a window is displayed on the
introductory screen for searching and connecting with the measuring unit.
After the Scan button is pressed, 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 and confirm the option by
pressing the Connect button. 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.
Measuring Window
Based on the differential pressure measured, type of measured medium, its
temperature, valve and its preset, the application displays the differential
pressure in measuring points of the attached fitting and compute 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.

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4. The firmware version of the pressure unit connected.
You can find settings available in the Measuring window in the context menu after pressing a button.
You can find the button in the upper right corner of the screen.
Measuring Context Menu Tabs
Select Valve
You can select the required valve by pressing the
selection list.
After clicking on the blue Manufacturer line, the list of valve
manufacturers contained in the Midor instrument database
will open from which you select the manufacturer required
by you. The database of valves in the instrument contains
valves 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 valves
of the given manufacturer will open from which you can
select the required valve type. For simpler orientation and
selection, also the photo for each valve type will be
displayed for you.

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Valve Preset
You can change the valve preset from the selection list.
For every valve, the preset field displays the interval in which you can enter the preset.
Medium
You can select the heat-transfer medium of the measured system by pressing
the Select Medium selection list.
If you select as the medium the Ethylenglycol or Propylenglycol ant-freeze
mix, you will have to enter the given anti-freeze mix concentration in the
Concentration field. Then, the application will recalculate the flow calculation
using this value. Also, you can find under the Concentration field data on the
extent in which the concentration can be specified and entered.
Kv Direct Setup
In case the database of valves does not contain the valve you require you can measure the flow using the Kv direct
specification.
You can obtain the table with preset values and Kv values from the documentation of the respective valve manufacturer.

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Set Requested Flow
This function is used for displaying the actual/requested flow ratio at the
measured valve (the lambda quantity in the proportional balancing method).
This way you can easily and quickly set up the requested flow through the
valve.
Once the value of requested flow is entered, the flow value in absolute units /
the percentage ratio from the previous paragraph will be displayed in the Flow
field in the Measuring screen.
If you set up the requested flow value back to zero,the Flow field in the
Measuring window will show just the flow value in absolute units.
Medium Temperature
Specify the temperature of the medium in the measured system by pressing
the Set Temperatureselection list.
Fill in the temperature data manually in the Temperature field.

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Pressure Measuring Zero, Deaeration of Measuring Hoses
For measuring low differential pressures (under 500 Pa), it is necessary to
reset the pressure measuring of the measuring unit.
The reset function will be activated from the Sensor zero setting selection
list. You will be led through the reset procedure by gradually emerging
pictures. By rotating the pressure reset knob to the left, the pressure inlets are
hydraulically connected and physically there is zero pressure difference
between them. In the pressure measuring unit, the zero pressure value is set.
Then, turn the reset button to its default position.
The connection of the pressure inlets can also be used to bleed the
connection hoses of the measuring unit. For media temperatures above
50 ° C, venting of less than 10 seconds is recommended to avoid
unnecessary heating of the pressure unit measuring circuits.

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Projects
Project Management
The project management in the Midor measuring instrument makes the work in the real technology
easier. You can prepare the project you need to measure directly in the Midor measuring
instrument. You can then store two values for each branch of the project - the initial status of the
branch before balancing and its status after balancing. From the data of the whole project you can
then print a report on the project status before balancing and the report on balancing.
For the project measurement you select the respective project and branch. The Midor measuring
instrument will set the valve and its preset automatically and you are ready for measuring. The
measured data will be again stored automatically in the project’s correct fields.
You can find in the Projects introductory screen two tabs - Projects aBranches.
Project Window, Project Tab
In the Project tab, the input data of the project is entered or measured, such
as Project name, File name for storing projects, Project input pressure.If
the Common valve is used in the project, change the position of the sliding
button. Then, you have to specify and enter the Valve type and Initial preset.
Once the system is balanced, you can also specify and enter the Balanced
status preset.

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Project Context Menu
After clicking on the button in the Project tab, a
selection list is displayed in which you can work with
projects - New, Open, Save, Mail, Save as, Delete,
Rename Project.
New
Once the New button is selected from
the selection list, a screen is opened
in which you specify and enter the
new project name. Confirm it with the
OK button.
After that, the introductory Projects
screen is reopened which already
shows the new file name for storing
the new project.
Open
Select from the selection list
an already existing project
which you want to open.
Save
The selection list, Save -
stores the existing project with
the existing name.
Save as
The Save as selection list, enter the
new name for storing the existing
project, confirm with the OK button.

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Send Project via Mail
The Mail selection list. The existing project will be exported in
the .xml format and send via Mail.
In order to have this function available, you have to have the
Email client application set up in your mobile device. Once this
tab is selected, the Send Mail Email client form is displayed
where the project file is already appended. Fill in the recipient’s
address, the Mail subject, text, and, if appropriate, the
signature. The Mail message will be sent off after pressing the
Send button.
Project renaming
The Rename Project selection
list, specify and enter the new
project name for renaming,
confirm with the OK button.
Project Window, Branches Tab
Once the Branches tab is selected, a screen is displayed where you can set
up or measure parameters of individual branches.
In the first field in this screen, you can specify and enter the branch name, or,
using an arrow key, you can select the branch you want to be displayed from
the existing branches.
In other fields, you can enter the Valve used in the given branch and specify
and enter the Flow requested. The other three fields contain the measured
quantities - Disposition pressure, Initial flow, Actual flow. The other two
fields are used for specifying and entering two values - Initial preset and
Preset. The remaining fields are filled in automatically.

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Branch Context Menu
After clicking on the button in the Branches tab, the
Branch context menu selection list is displayed.
Here, you can work with branches: Add branch, Rename
branch, Relocate branch up, Delete branch, Relocate
branch down
Add Branch
The Add branch selection list: A
screen is opened in which you specify
and enter the new branch name and
confirm with the OK button.
Rename Branch
The Rename branch selection list: A
screen is opened in which you specify
and enter the branch new name and
confirm with the OK button.
Move Branch up
The Move branch up selection list:
You can relocate the existing branch
one place up in the list of branches.
You can verify this in the list of
branches by selecting the arrow at the
branch name.

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Delete Branch
The Delete branch selection list: You can delete the
branch which is currently being edited.
Move Branch Down
The Move branch down selection list:
You can relocate the existing branch
one place down in the list of
branches. You can verify this in the
list of branches by selecting the arrow
at the branch name.
Recording
The Midor pressure unit is equipped with the function of independent periodical data recording. This function may make
the project diagnostics easier especially for irregular or long-time processes.
The recorded data contains the record description, date, time, selected valve, valve preset, medium, temperature of the
medium while recording, pressure and flow. Recordings can be read into the mobile device and further exported and
analysed in tables or diagrams. Last but not least, tables and diagrams can be printed from the data exported like this
and reports compiled on the hydraulic system balancing.
You can find two tabs in the introductory Recordings screen - Record info and Record items.

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Record Info Tab
After clicking on the button, the Record Info
context menu is displayed where you can work with
records using respective tabs - Add new record, Open
record, Save record as, Read record, Send record via
Mail, Delete record.

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Record info Context Menu
New Record
From the New selection list, a screen is open where you
can select what quantities you want to record. The
pressure recording is always mandatory and cannot be
deactivated. Once the quantities to be stored are
selected, you select the medium and its initial temperature
in the two subsequent fields. The last two fields of this
screen are designed for specifying and entering the valve
on which you are measuring and its preset. Confirm the
entry by the Continue to record options button. Another
screen opens in which you specify and enter the text of
the record location and description. The last two fields are
used for entering the interval in which the selected
quantities should be measured and saved, and how many
times the record should be repeated. You can activate
new recording by clicking on the Start recording button.