Danfoss PFM 3000A User guide [pl]
Instrument for the Balancing of Heating Systems
PFM 3000
User Guide
VUE1V102
PFM 3000
PFM 3000
Content
Content
Introduction
Invaluable Advantages of PFM 3000
Important User Notice
Putting the Instrument into Operation
Battery Charging
Deaeration of Connecting Tubes
PFM 3000 Zero Measuring Correction
Functions of Keys on the Instrument's
Keyboard
Measuring with PFM 3000
Measuring Flow in the Fittings Not Saved in the
PFM 3000 Memory ..................................
Heating Calculations
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Calculation of the Fitting Presetting for Requested
Flow ...............................................
Calculation of the Pressure Drop for Requested
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flow ................................................
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Data Record
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Processing Projects
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Measurements Necessary for the Calculation of
8Language Changing ..................................
Project Balancing ...................................
8Real Time Clock Setting ..............................
9Automatic Shut OFF ..................................
9Display Backlight Time ...............................
10Pressure Units ......................................
Balance Calculation of the Project with a Pressure
10Flow Units ..........................................
Input in the Middle ...................................
10Measuring Filter .....................................
Communication with a Computer
10Valve Selection .....................................
Data Processing and Displaying Program - User
11Valve Presetting Change .............................
software PFM 3000 ..................................
11Measured Medium ..................................
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11Measuring Without Project ...........................
11System Overpressure Measuring .....................
12Differential Pressure and Flow Measuring .............
Maintenance Instructions
Parts of the Delivery
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Technical Specifications
13Temperature Measuring .............................
PFM 3000 Menu
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13Record Preparing ...................................
14Start of Recording ...................................
15Full Data Memory and Low Battery ....................
15End of Recording ...................................
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16Creating a New Project ..............................
17Project without a Common Valve .....................
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18Balance Calculation of the Project ....................
18Results of Project Balancing ..........................
18Project Balancing Check .............................
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21Minimum PC Requirements ..........................
21Software Installation .................................
21Operating the Program ..............................
21Measured Data Processing ..........................
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PFM 3000
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PFM 3000
Introduction
PFM 3000 has been designed for the servicing and hydraulic
balancing of heating and cooling systems. It is equipped with
a number of added built-in functions that make your work
enjoyable.
The instrument is small. Its hard metal case lets you use it
even under severe outdoor conditions. Even if you spill
water on the case, PFM 3000 stays intact. A delivery
includes standard RS232 interface and user software for the
processing of gathered data.
A basic modulus of the instrument is a differential
manometer with digital pressure processing. It is equipped
with a built-in pressure sensor. The manometer combines
the advantages of digital technology and compensates
temperature dependence and the non-linear character of
measuring. It makes possible the measuring of overpressure
or underpressure in a system and the measuring of
differential pressure. Using pressure difference at a
balancing or measuring component you can measure flow at
particular branches of a system and balance the heating
system. Excellent features of the manometer enable further
accurate measuring.
An external thermometer modulus is a part of the basic
measuring equipment of the instrument. It enables to
measure the temperature of a medium. The thermometer
connects to the RS232 interface connector. One finds it easy
to work with, as its dimensions are compatible with the
dimensions of the measuring needles of balancing valves.
The measuring spike of the thermometer should be plugged
into an output for the measuring of differential flow. Along
with other data temperature is being recorded in the
instrument’s memory.
A built-in flow meter modulus is an indispensable instrument
for the balancing of hydraulic systems. It calculates flow at a
particular branch of a heating system out of pressure
difference at a measuring element. The memory of the
instrument keeps the characteristics of balancing and
measuring elements of established producers. You can
choose a particular type in the instrument’s menu.
There is an automatic flow correction function for flow
measuring in systems with non-freezing additives or cooling
systems.
A valve presetting calculation modulus is an revelsal part of
the flow meter modulus. The output of the valve presetting
calculation function is valve presetting for required flow. The
function calculates valve presetting using valve
characteristics stored in the memory. Therefore you always
receive the right value of presetting.
An integrated recording modulus including a real time circuit
is another positive feature of the instrument. The time circuit
is all time powered from apparatus lithium battery.
The modulus helps keep records from project realisation or
diagnose time actions in a heating system. The memory
stores pressure, flow, temperature, chosen valve, valve
presetting and measurement identification data, which helps
you process and evaluate results on your PC. While
recording measured data with a longer recording period, the
instrument switches automatically to the sleep mode. This is
enabled by a long-term recording function with energy
coming from an internal source.
You can record data at different points of the heating system
and have the current state of the system processed in your
office. You can also choose a periodical recording. The
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PFM 3000
analysis of time actions will help you choose an optimum
system solution.
To download recorded data into your PC you can use
software included in the delivery. The software makes it
possible to display data in a chart or graph. They can also
be printed. Data can be exported in standard PC formats
and processed by a text editor, chart processor or database
programs.
A heating system balancing modulus seems to be the most
important component for the user. The modulus calculates
the balancing of the system with many branches. It makes it
possible to regulate even a complicated heating system
including a common valve. A sophisticated calculation
method optimises hydraulic ratios in the system and
produces a project aiming at minimum energy loss in the
system. The method reduces substantially the time needed
for balancing. The function calculates valve presetting
directly using the characteristics stored in the memory.
Therefore you always receive the right presetting value.
Invaluable Advantages of PFM 3000
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
Important User Notice
If you have previously used the instrument to measure liquid
medium, do not expose it to temperature lower than the
point of congelation of measured liquid. The pressure sensor
may be damaged.
Inputs for measuring tubing are equipped with sintered filters
- filtering capacity 50 µm. When measuring in systems with a
lot of dirt, filters get fouled. If the instrument's display
indicates high pressure or one of pressure inputs does not
work after measuring tubing have been disconnected,
replace the filters.
Putting the Instrument into Operation
PFM 3000 is delivered with precharged lithiun battery and is
ready to run immediately. Please check apparatus clock
after first switch on.
Battery Charging
During measuring you can see battery state after hot key
pushing. The battery capacity baragraph appears on
display
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PFM 3000
Message Low Battery! flashes on the display every 15 sec
bellow battery capacity 5%. You can work in this state about
6 hours, after it PFM 3000 automatically switches off.
Connect battery charger into conector under the cover at
PFM 3000 bottom. Charging time is about 7 hours.
Deaeration of Connecting Tubes
To minimize measurement errors, deaerate the connecting
tubing of the instrument. Take a quick coupler R20 off the
tubing by pressing a safety ring (black collar) towards the
quick coupler. Do not disconnect the quick coupler merely by
pulling or force. The surface of the tubing or screw joint
might be damaged. Connect the tubing to the measuring
valve by a quick coupler R21 or to a discharge cock by
means of a measuring adaptor. Flush out the tubing with
water until air bubbles disappear. Put back the quick coupler
R20.
hoses. While it has not requested effect, special
maintenance is needed.
Zero is not stored in PFM 3000 configuration and not
corrected value is measured after new switch on.
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:
Switches the instrument on and off. To switch on
the instrument, hold the key for one second.
Resets a reading about pressure on the display.
The key also corrects possible zero instability
and the dependence of the differential pressure
on static pressure.
If in the measuring function, it opens the menu.
It is used for the upward movement within the
menu. If you press the key while entering data,
the new value will not be saved. The previous
data will be kept.
Serves to accept a value or a selected
command in menu.
PFM 3000 Zero Measuring Correction
When measuring zero pressure will take an error after a time
of PFM 3000 using, you can correct this effect by ZERO
function. In the instant that zero error is grater some kPa, we
recommend clean or change sintered filters in apparatus
Hot key Valve. While in the measuring mode, it
opens a selection of valves.
Hot key Preset. While in the measuring mode, it
opens a valve presetting.
Hot key Battery. While in the measuring mode,
it opens battery capacity display.
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PFM 3000
Hot key Project Change. While in the Project
making mode, it changes displayed projects.
Deletes a sign from the actual position and
deletes a whole line if held.
Use the keys to move within the menu or the
value entry. While in the measuring mode, it
switches displaying modes. In the Project
making mode, it changes displayed branches.
PFM 3000 Configuration
Before measuring, configure the instrument according to a
particular system. The configuration will be saved in the
memory until a next change regardless of shutting down the
instrument.
Press MENU key to open menu. The first line
shows an entry name. The other lines show the
list of sub entries. A selected entry is marked
at the beginning of the line. If the entry has sub
entries, it is marked by at the very end of the
line.
Move in menu and confirm
requested item.
Return one level up, by holding 1 sec you will
return into the measuring from arbitrary menu
level.
Language Changing
Main Menu
Select item Configuration
and confirm it.
Menu Configuration. Select
Language item and confirm it.
Menu Language. Select
requested Language and confirm
it.
Real Time Clock Setting
You can check Date and Time in the Time mode
Mode hot key
Mode offer
Select Date and Time and press
OK.
If PFM 3000 clock setting is incorrect set the appropriate
parameter
Main menu. Select
Configuration item and confirm.
Open menu
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PFM 3000
Configuration menu. Select
Date and Time item and
confirm.
Menu Date and Time. Select
Minute item and confirm.
Enter minutes.
Move cursor to requested
position.
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There is no need to enter every decade and/or decimal point
of the number in question, only the desired changes
Rewrite digit at cursor position.
If needed, erase digit at cursor
position by DEL key. Holding
DEL by 1s you will erase whole
number.
Confirm correct number.
Automatic Shut OFF
PFM 3000 shuts down automatically 10 min after pressing
the keyboard for the last time. In case of measuring for a
longer period of time without using the keyboard switch this
function off in the Configuration/Automatic OFF menu.
While in the recording mode, this function is switched off
automatically. It is reactivated after the end of recording. The
automatic shut down command is not saved in the
instrument's configuration. Next time when you switch the
instrument on the function is active again.
Main menu
Select Display item and confirm.
Menu Configuration.
Select Automatic OFF item and
confirm.
Menu Automatic OFF.
Select requested function and
confirm.
Display Backlight Time
This is a function to be appreciated when you measure in
dark. When you set the backlight time to 0, the function is
not active.
Main menu. Select Display item
and confirm.
Display menu. Select Backlight
Time item and confirm.
Enter Backlight Time value and
confirm.
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