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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Rev. 1.1 Midor iOS User Guide
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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Rev. 1.1 Midor iOS 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.
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.