Danfoss PFM 1000, User Manual

User Guide 

PFM 1000

VU.E2.G1.02 | 5

© Danfoss | 2019.02

Pressure Unit Turn-on

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 PFM 1000 

application will search for and display available PFM 1000 devices. Select your PFM 1000 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 PFM 1000 application. If you 

check the 

Always use the selected device

 option, the PFM 1000 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.

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.

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.

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.