Danfoss PFM3000 USB User guide
Instrument for Balancing of Hydronic Systems
PFM3000 USB
User’s Guide
VU.E1.V2.02
PFM3000
PFM3000
Contents
3Contents ..................................... .......
5Introduction ................................... .......
6Invaluable Advantages of PFM3000 ............. .......
6Important User Notice ......................... .......
6Getting Started ................................ .......
6Battery Charging .............................. .......
7Flushing of Hoses ............................. .......
7PFM3000 Zero Measuring Correction ........... .......
8Functions of Keys on the Instrument's Keyboard . .......
8PFM3000 Configuration ........................ .......
9Language Setting ............................. .......
9Clock Setting ................................. .......
10Pressure Units ................................ ......
10Flow Units .................................... ......
11Valve Selection ............................... ......
11Measured Medium Selection ................... ......
Selection of Minimum Pressure for Flow
Displaying .................................... ......
Measuring Flow in the Fittings Not Saved in the
PFM3000 Memory ............................ ......
Calculation of Valve Presetting for a Requested
Flow ......................................... ......
12
13Measuring with PFM3000 ...................... ......
13Measuring Without Project ..................... ......
13System Over pressure Measuring ............... ......
13Differential Pressure and Flow Measuring ....... ......
13Automatic in Process Zero Setting .............. ......
14Flow Measuring Limitation ..................... ......
14
15Temperature Measuring ....................... ......
15Heating Calculations .......................... ......
15
Calculation of Valve Pressure Drop for a
Requested flow ............................... ......
Measurements Necessary for the Project
Balancing .................................... ......
Balancing Calculations of Projects with Central
Pressure Input ................................ ......
........ ......
15
16Data Recording ............................... ......
16Recording Settings ........................... ......
16Start of Recording ............................. ......
17Full Data Memory and Low Battery .............. ......
17End of Recording ............................. ......
18Processing Projects ........................... ......
18Creating a New Project ........................ ......
19Project without a Common Valve ............... ......
19
20Project Balancing Calculation .................. ......
20Project Balancing Results ...................... ......
21Project Balancing Check ....................... ......
22
23Communication with a Computer ............... ......
23User Software PFM3000 ....................... ......
23Minimum PC Requirements .................... ......
23Software Installation ........................... ......
23Windows USB Drivers Installation Guide
26Operating the Program ........................ ......
26Data Processing .............................. ......
27Maintenance Instructions ...................... ......
28Parts of the Delivery ........................... ......
29Technical Specifications ....................... ......
3
PFM3000
4
PFM3000
Introduction
PFM3000 has been designed for the servicing and hydraulic
balancing of most pressurised heating and/or cooling
systems. It enables measuring of both under-pressure and
over-pressure as well as that of differential pressure within a
given system. Furthermore, using the differences in pressure
between the balancing and measuring elements, the flow
through individual branches of the system can be measured,
thus allowing the whole system to be balanced.
PFM3000 has a number of key features that enable easy
handling. The apparatus itself is relatively small and
extremely hard wearing so that it can withstand the harshest
of conditions during operation. After measuring, the acquired
data can be transferred to a PC via a USB interface and
subsequently analysed using a specialised software
provided.
The basic module of the apparatus comprises of a
differential pressure meter with an integrated pressure
sensor that allows digital data processing. Owing to the
advantages gained by the use of digital technology, the
PFM3000 is able to compensate for inaccuracies normally
associated with pressure measurements, such as
temperature dependency and non-linearity. This forms the
basics for the accuracy of subsequent measurements.
One of the essential components for balancing hydraulic
systems is a built-in flow meter module. The flow meter
works by calculating the flow through a given branch within
the system using differences in pressure registered by the
measuring element. Specifications for both the balancing
and measuring elements of well-recognised manufacturers
are pre-programmed in the memory of the PFM3000. These
easily accessed from its main menu. In addition, the flow
meter automatically corrects the flow for different types of
medium within the system being measured, such as systems
with antifreeze additives or cooling systems.
The biggest advantage for the user is conferred by a module
used for heating system balancing calculations. It allows
regulation of complicated multi-branch heating systems
inclusive of any shared valve. The PFM3000 utilises a
sophisticated method for calculating hydraulic resistances
within the system. As a result, the PFM3000 comes up with
a proposal with the lowest energetic loss. This function
dramatically decreases the time required for balancing.
An inverse module to the flow meter module is that used for
the calculation of valve pre-settings, the output of which is a
valve pre-setting value for a required flow. For a given valve,
the pre-setting value is calculated using its respective
parameters stored in the memory of the PFM3000.
The PFM3000 can be supplemented with an external
thermometer connected via the coaxial connector. The
temperature of the working medium can be easily measured
by inserting the thermometer into the differential pressure
outputs due to their size compatibility with the balancing
valve measuring needles. The temperature value is recorded
in the memory of the PFM3000 along with other collected
data.
5
PFM3000
Apart from the usual recording and archiving of collected
data, the PFM3000 has an integrated recording module
equipped with a real time circuit. This also enables the
diagnosis of any timed processes taking place in the system,
the analysis of which aids selecting the most optimal system
set up. During recordings with longer measuring periods, the
PFM3000 automatically enters a lower energy consumption
mode. This ensures prolonged recording from the internal
energy source (a lithium battery).
Data can be collected from various points around the
heating system as and when required. In addition, it can also
be collected periodically. The values recorded by the
PFM3000 include pressure, flow (velocity), temperature,
chosen valve and its pre-settings. Each measurement is
given an id, which makes the subsequent data handling
easier. The recorded data can be subsequently transferred
into a PC using the software provided. The software further
enables its analysis in tabulated or graphic formats.
Alternatively, the data can be exported using standard PC
formats and analysed in text editing, table processing or
database programmes. All data can also be printed.
Important User Notice
Do not expose the PFM3000 to temperatures lower than the
freezing point of the previously measured liquid medium as
the pressure sensor may get damaged.
The R20 quick release couplers that are used on the smaller
size measuring tubing contain charcoal filters with filtering
capacity of 50µm, which can get clogged when measuring
systems with abundant particles. These filters should be
changed if an unrealistic pressure value is displayed or if
any of the pressure inputs appear non-functional.
Getting Started
The PFM3000 is supplied with a pre-charged lithium battery
ready for use. After switching on the PFM3000 for the first
time, check alternatively set the real time circuit according to
instructions.
Invaluable Advantages of PFM3000
y Mechanical design
y Integrated pressure sensor
y Robust metal case
y Water resistant
y Big 4-line display
y Illuminated display
y Well-arranged 16-key foil keyboard
y Chargeable lithium battery
Battery Charging
The battery status can be checked during measuring by
pressing the hot key .Its capacity will be subsequently
displayed in a form of bargraph.
6
PFM3000
Message Low Battery! flashes on the display every 15
seconds if the battery capacity reaches less than 5%. It is
possible to run the PFM3000 for a further 6 hours following
the appearance of the above message, after that the
PFM3000 automatically turns itself off. To recharge the
battery, plug charger cable into a port situated at the bottom
of the PFM3000 (see Figure 1), plug power supply unit into a
mains power socket and charge for at least 7 hours.
Flushing of Hoses
The supplied connecting hoses are pre-filled with 50%
ethylene glycol solution.
If you need to flush them immediately after purchase, follow
the instruction outlined below:
y Connect the tubing to a measuring needle fitted with
a ball valve.
y Remove the smaller R20 quick release coupler from the
tubing by pressing the black safety clasp towards it.
y Do not remove attempt to remove the quick release
coupler by pulling using a force, the surface of the
connecting tubes may get damaged
y Plug the measuring needle into the measuring nipple of
the balancing valve.
y Carefully turn the ball valve on.
y Flush the tubing with water until all air bubbles have
disappeared.
y Turn the ball valve off.
y Replace the R20 quick release coupler.
y The tubing will remain filled with watter as both the R20
and R21 quick release couplers have a check-valve.
The tubes should be de-aerated prior to measuring in order
to minimise errors.
PFM3000 Zero Measuring Correction
Should the zero pressure value shift while the PFM3000 is in
use, the ZERO key can be used to correct it. For detailed
Zero Procedure description see chapter Automatic in
Process Zero Setting.
If, however, the zero value error is greater than several kPa,
it is recommended to clean the sintered filters within
measuring tubing. Should the problem persist, please
contact our customer service for assistance. The zero
setting is not registered in the memory of the PFM3000 so
the original pressure and flow values are displayed each
time the PFM3000 is turned on.
7
PFM3000
Functions of Keys on the Instrument's
Keyboard
Keys with standard numbers or letters are used to enter data
into computer. Following keys have special functions:
Hold down the key for about a second to turn the
PFM3000 on.
Starts zero procedure used for the correction of
zero setting or differential pressure in face of
static pressure.
Opens main MENU during measuring. Once in
MENU, the key functions to move up a level.
Pressing the ESC/MENU key while entering
data, not the new but the original value is
entered.
Enters values or confirms choices from menu.
Valve hot key. Calls up choice of valves during
measuring.
Presetting hot key. Calls up valve presetting
option
Battery hot key. Calls up battery capacity during
measuring.
Project Change hot key. Lists projects down
while in the Projects Making mode.
Project Change hot key. Lists projects up while
in the Projects Making mode.
Quick record hot key. PFM3000 makes one
record if you press this button while in
measuring mode. Record contains valve type
and preset, actual pressure, flow and
temperature values. You can write 16 chars
description at the end of this function. You can
view quick record as an standard record in
PFM3000 User Software.
KVS hot key. Displays the current KVS of a
valve during measuring.
KV hot key. Displays the current KV of a valve
during measuring.
Pressing the key deletes the last character or
deletes a whole line if held. Of a number being
entered, holding it down deletes the whole
number.
Navigates around the main menu or branches
within the Working with Projects mode. Moves
cursor in data entry regime. While in the
measuring mode, it switches displaying modes.
PFM3000 Configuration
Prior to measuring for the first time, the following parameters
can be preset according to your requirements. Once
configured, these settings will automatically be recalled each
time the PFM3000 is switched back on.
Use the following instructions to configure the PFM3000:
8
PFM3000
Choose menu by pressing the ESC/MENU key.
The first line in the menu gives the name of an
item followed by a list of subentries. A selected
item is marked by an at the beginning of the
line. If the item selected has further sub entries,
is displayed at the end of the line.
Return to measuring from any level of menu by
holding down the ESC/MENU key for second.
Language Setting
Select and confirm entry.
Open menu
Main Menu
Select Configuration and
confirm.
Menu Configuration. Select
Language and confirm.
Menu Language. Select desired
language and confirm.
Mode menu
Select Date and Time and
confirm.
If incorrect, set date and time as follows:
Open menu. Select
Configuration and confirm.
Configuration menu. Select
Date and Time and confirm.
Menu Date and Time. Select
Minute and confirm.
Enter minutes by pressing
respective number keys.
Clock Setting
Both the time and date are entered this way.
Mode hot key
Moves cursor to the required
position.
Enters number.
...
Press briefly to delete the
number at the position of the
cursor, hold down to delete the
whole number.
9
PFM3000
Confirms minute entry.
Hours, days, months and years can be entered accordingly.
There is no need to enter every decade, just those that are
incorrect.
Automatic Switch OFF
The PFM3000 turns itself off automatically after ten minutes
of keyboard inaction. It is therefore recommended to disable
this function prior to prolonged measuring as this can not be
carried out while in the recording mode. Unlike the above
functions, disabling the automatic switch off is not saved in
the starting configuration of the PFM3000 and will be
enabled again each time the PFM3000 is turned back on.
Open menu.
Select Configuration and
confirm.
Menu Configuration.
Select Automatic OFF and
confirm.
Menu Automatic OFF.
Select Disable and confirm.
Display Illumination
Use this function when measuring in poor lighting conditions
or at night. However, due to the high energy consumption,
display illumination decreases the operating time by 50%.
This function can be disabled by setting the illumination time
to zero.
Pressure Units
Flow Units
Open menu. Select Display and
confirm.
Display menu. Select Backlight
Time and confirm.
Menu Backlight Time. Enter
illumination time and confirm.
Main menu. Select Display and
confirm.
Display menu. Select Units and
confirm.
Units menu. Select Pressure
Units and confirm.
Select the unit required and
confirm.
Move up one level.
10
Loading...