Wohler DC 410FLOW Manual de usuario
Contents
2
Contents 1General Information..............................4
1.1 Operation Manual Information....................... 4
1.2 Notes............................................................. 4
1.3 Intended Use................................................. 4
1.4 Basic equipment............................................ 5
1.5 Transport....................................................... 5
1.6 Information on disposal................................. 5
1.7 Manufacturer................................................. 5
2Specifications........................................6
2.1 Measured Data.............................................. 6
2.2 Calculated Values ......................................... 7
2.3 Logger........................................................... 9
2.4 Technical Data ............................................ 10
3Component Explanation ....................11
3.1 Basic Unit.................................................... 11
3.2 Probes and Components............................. 13
3.3 Function ...................................................... 15
3.4 Functions..................................................... 16
3.5 Display and Key Setup................................ 16
4Getting Started....................................18
4.1 Check Battery Status................................... 18
5Operation.............................................20
5.1 Turning the Pressure Computer on and Self
Check.......................................................... 20
5.2 Measuring ................................................... 20
5.3 Special Tips................................................. 21
6Measurement Modes in the Main
Menu 23
6.1 Selecting the Main Menu............................. 23
6.2 Option „Air Speed“....................................... 23
6.2.1 Measuring the Air Speed............................. 24
6.2.2 Theoretical Background .............................. 25
6.3 Option „Airflow (Pitot)“ ................................. 26
Contents
3
6.3.1 Measuring the Airflow (Pitot)........................26
6.3.2 Grid-point Measurements ............................27
6.4 Option „Airflow (k value)“ .............................30
6.4.1 Theoretical Backround.................................30
6.4.2 Connecting the Wöhler DC 410Flow to the
Vent.............................................................31
6.4.3 Performing the Test.....................................32
6.5 Option “4 Pa Test“ .......................................34
6.6 Option „Energy Utilization Check“................38
6.7 Option „U value“...........................................45
6.8 Option “Volume“...........................................46
6.9 Graph / Record............................................48
6.10 Printing out Measurement Records .............50
6.11 Option "Save measurements"......................51
6.12 Option "SETUP"...........................................51
7Option 'Data management' ................53
7.1.1 Save Customer Records..............................54
7.1.2 Creating a New Customer Folder ................55
7.2 Option "Data management".........................56
7.3 Data Transfer with the PC or Notebook.......56
7.4 Data Logging ...............................................56
8Troubleshooting .................................57
9Maintenance........................................57
9.1 Maintenance work........................................57
10 Warranty and Service.........................58
10.1 Warranty......................................................58
10.2 Service.........................................................58
11 Accessories.........................................59
12 Declaration of conformity..................60
Points of sale and service............................61
General Information
4
1General Information
1.1 Operation Manual
Information
This operation manual allows you to work safely
with the Wöhler DC 410FLOW. Please keep this
manual for your information.
The Wöhler DC 410FLOW Flow and Pressure Meter
should be employed by professionals for its in-
tended use only.
Any damages caused by not following this manual
are excluded from liability.
1.2 Notes
WARNING!
Not following this warning can cause injury or
death.
ATTENTION!
Not following this note can cause permanent
damage to the device.
NOTE!
Useful information
1.3 Intended Use
The meter can be used for the measurement of
differential pressure, airflow, air speed and tem-
perature as well as for the registration of humidity
and barometric pressure. It is especially designed
for the following purposes:
Acceptance measurements at ventilation
systems according to DIN EN 12599.
4 PA Pressure Test to confirm the combustion
air availability.
Measurement of the ventilation loss and the
surface loss
Flow pressure, installation pressure, standing
pressure, jet pressure
Flow measurement in air and flue gas ducts
Data logger
General Information
5
1.4 Basic equipment
Meter
Components
Wöhler DC 410FLOW
Flow and Pressure
Meter
2 capillary tubes
Batteries
Plastic case
1.5 Transport
ATTENTION!
Improper transport can harm the instrument.
Always transport the instrument in the provided
carrying case in order to prevent damage. The
pressure connectors have to be protected by the
protection cap.
The case is included in the sets and can also be
bought separately.
1.6 Information on disposal
Electronic equipment does not belong into domes-
tic waste, but must be disposed according to the
applicable statutory provisions.
You may hand in any defective batteries taken out
of the unit to our company as well as to recycling
places of public disposal systems or to selling
points of new batteries or storage batteries.
1.7 Manufacturer
Specifications
6
2Specifications
2.1 Measured Data
Differential pressure
Description
Data
Range
±100 hPa
Accuracy
< 3 % of the reading, if
the value is < ± 10 Pa,
better than
± 0.3 Pa
Resolution
0.1 Pa at
-1,100 Pa to
+1,100 Pa, otherwise
1 Pa
Measurement of very small pressures
Description
Data
Range
± 100 Pa
Accuracy
< 3 % of the reading, if
the value is < ± 10 Pa,
better than
± 0.3 Pa
Resolution
± 0,01 Pa
Temperature (internal sensor)
Description
Data
Range
-20 °C to 60°C
Accuracy
< ± 1 °C
Resolution
0.1°C
Specifications
7
External temperature probe
(optional, e.g. with Measuring Pli-
ers for Temperature Measurement
or Special Wall Temperature
Probe)
Description
Data
Range
2 canals, -20.0 °C to
+800.0 °C
Accuracy
< ± 2 °C at 0°C to
133°C, otherwise 1.5
% of the value, ac-
cording to the directive
EN 50379-2
Resolution
0.1°C
Relative humidity
(internal sensor)
Description
Data
Range
0 % to 100 % rh (rela-
tive humidity), non
condensing
Accuracy
< ± 2 % RH, in range 0
to 90 % RH, otherwise
< 3 % RH
Resolution
0.1 % RH
Barometric Pressure
(integrated barometric pressure
sensor)
Description
Data
Range
±300 hPa to 1,100 Pa
Accuracy
< ± 1.5 % hPa of rea-
ding
Resolution
0.1 hPa
2.2 Calculated Values
Variable
Calculation
Pressure units
hPa, Pa, mmH2O, PSI, inwc,
bar, mbar, conversion ac-
cording to the general con-
version rules
Temperature
unit
°C and °F, conversion ac-
cording to the general con-
version rules
Specifications
8
Air speed
Description
Data
Range
0.3 m/s to 120 m/s
Resolution
0.01 m/s
Continuous density
correction
automatic, with
temperature signal
Specifications
9
2.3 Logger
Description
Data
Extent
9999 measurements,
each with the meas-
ured value of pressure
and humidity and
three temperature
values (if the external
temperature sensors
are connected) can be
stored in the internal
memory. The user can
set the log rate from 1
second to 24 hours.
USB interface for data
transfer to a PC
Permanent online da-
ta, already during the
registration
User adjustable log
rate
Sampling interval of 1
second to 24 hours
can be set.
NOTE!
Ensure that the meter is connected to the power
supply or that the batteries are charged.
Specifications
10
2.4 Technical Data
Description
Data
Current consumption
4 AA rechargeable
batteries or 4 AA
disposable batteries
1.5 volt
- working mode:
ca. 60 mA,
- off-mode and log
mode:
ca. 45 µA for clock
and processor
Interfaces
USB- (COM-Port),
data transfer to the PC
It is possible to trans-
fer the data directly
from the meter to the
Wöhler TD 600 ther-
mal fast printer.
Storage temperature
-20 °C to +60 °C
Operating temperature
5 °C to +40 °C
Mass
ca. 365 g, with batter-
ies and integrated
magnet
Dimensions
80 x 550 x 60 mm
Date and time
Date and time are
included in the meas-
urement report
Internal memory
2 MB
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