Midor
5
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.
