W HLER TA200 Thermoanemo Meter Technik User Manual

Manual
Thermoanemometer

Wöhler TA 200
Best.-Nr. 25391– 2024-06-03

General information

1.1 Information on the operating instructions
These operating instructions enable you to operate the Wöhler TA 200 thermoanemometer safely. Keep it in a safe place for future reference. The Wöhler TA 200 thermoanemometer may only be used by qualified personnel for its intended purpose. We accept no liability for damage caused by failure to observe these operating instructions.
1.2 Notes in the operating instructions
ATTENTION!
Indicates hazards that could result in damage to the appliance.
NOTE!
Highlights tips and other useful information.
1.3 Intended use
The measuring device is used to determine the flow velocity, temperature and volume flow in the air duct and at air diffusers.
1 .4 Scope of delivery

TA 200
Thermoanemometer| Telescopic probe with rubber rings for marking
MIDI plastic case
4 AAA batteries 1.5 V

1.5 Waste disposal

Electronic devices must not be disposed of with household waste, but must be disposed of in accordance with the applicable environmental regulations.
Damaged batteries are considered hazardous waste and must be taken to the designated collection points for disposal.
1.6 Dealer address

Wöhler Technik GmbH
Wöhler-Platz 1
33181 Bad Wünnenberg
Phone: +49 2953 73-100
Fax: +49 2953 73-250
E-mail: info@woehler.de

Technical data

General specifications

After 10 minutes
Dimensions Probe| 175 x 70 x 33 mm
Ø 9 (probe tip)
Ø 12 mm
(Telescopic rod end)
Telescopic tube| 26.5 – 96 cm,
3-way extendable
Weight| 331 g

Flow velocity

10 m/s: 0.10 m/s
Accuracy| +/-(5% of measured value +0.10) m/s
Extremely fast
response time| Typically 0.5 s

Air temperature

Volume flow

Display
Resolution| 0 – 99999
0.1 (0 – 9999.9) or 1 (10000 to 99999)
Unit| m³/h, cmm, cmh, l/s, cfm

Device details

3.1 Key assignment

Short button press: Button function in white text (+ on/off button) Long button press (5 s): Button function in green font

Power button| Switch on/off
NOTE!
The appliance is ready for operation after a warmup time of 5 seconds.
The appliance switches off automatically if no button is pressed for 10 minutes.
---|---
SET| Press for 5 seconds when the device is switched on: Call up the settings menu.
Fashion| Call up the different measurement displays:
Upper display: Flow velocity (always remains)
Lower display: Volume flow or temperature (switchable
Avg.| Calling up the mean value measurement
Press 1 x: Time (max. 1 h)
Press 2 x: Network measurement with measuring points
(max. 999 measuring points
RESET (press for 5 s)| Reset the MIN/max value
▲ Min/Max/HOLD| Press 1 x: Freeze value
Press 2 x:Display maximum value (from switch-on or last reset)
Press 3 times:Display minimum value (from switch-on or last reset)
Press 4 x: Return to normal measurement display
In setting mode: Set value
REC/ ▼| In mean value mode: Save measured value or stop recording
In setting mode: Confirm the set value
ESC/ L – W| In setting mode and average value mode: Return to normal measured value display
In setting mode (setting the length (L) and width (W): Switch between length (L) and width (W).

3.2 Telescopic pole with sensors

ATTENTION!
When the appliance is not in use, always slide the protective sleeve over the sensor opening to protect the sensitive hot wire sensor.
ATTENTION!
Never touch the hot wire and temperature sensor.

Functional principle

The Wöhler TA 200 measures the flow velocity via a very small hot wire sensor. The temperature compensation required for precise measurement at different temperatures is carried out automatically via a separate temperature sensor, which is fitted below the flow sensor. Both values, flow velocity and temperature, are shown simultaneously on the display. The telescopic probe enables flexible adaptation to different air duct crosssections. Thanks to the flexible gooseneck, the device can also detect leaks in doors or windows during blower door measurement in accordance with ISO 9972
The measuring device offers various functions for convenient measurement of ventilation systems:

• For simple volume flow measurement, the duct cross-sectional area can be entered flexibly on the device.
• For network measurements in air ducts in accordance with EN 16211, the values at individual measuring points can be recorded in a special measuring mode. The average of these values is automatically shown on the display. The device can also be used to
  carry out time-averaged measurements, in which the averaged value over a certain period of time is displayed.

Preparation for operation

ATTENTION!
The appliance may only be used within the authorised temperature range. Avoid strong vibrations.
ATTENTION!
The appliance must not be operated in the vicinity of strong electric fields.
ATTENTION!
The device must never be placed on the user interface.

5.1 Batteries

• Insert 4 AAA 1.5 V batteries.
  The battery compartment is located on the back of the device.
  When the battery voltage is low, a battery symbol appears on the left-hand side of the display.

• In this case, insert new batteries.

• To carry out a flow measurement, remove the protective cap from the probe tip.

• Pull the telescopic rod to the required length

5.2 Alignment of the probein the pipe

NOTE!
To measure in the pipe, straighten the gooseneck of the probe head.

• For leakage detection, e.g. on a window or door frame, align the gooseneck of the probe head individually.

There is a yellow sticker labelled IN on the tip of the probe and on the probe handle.

• Make sure that this sticker is always directed towards the air flow to be measured.

5.3 Switch on

• Switch on the appliance by pressing the POWER button.

After a warm-up time of 5 s, the device is in measuring mode.
The automatic switch-off function is activated. (switch off after 10 minutes)
APO (Auto Power Off) appears at the top of the display

• If you want to deactivate the automatic switchoff function, press the Power button and the ▲ Min/Max/HOLD button simultaneously to switch on.

5.4 Backlighting

• Press any button to activate the backlight for 10 seconds

Display modes

Measuring mode
The Wöhler TA 200 displays 3 measured variables:
Flow velocity, volume flow and air temperature In normal measuring mode, press the Mode button to change the view as follows:

Max/min mode

In max./min. mode, press the Mode button to change the view as follows:

Average mode
In average value mode, press the Mode button to change the view as follows:

Mean value measurement

7.1 Time averaging

The device can automatically determine the average value over a specific time (maximum 59:59 h). To do this, proceed as follows:

• Press the AVG button to switch to average value mode (time).
  A clock icon appears on the display.

• Press the REC button to start and stop the average value measurement.

• Press the AVG button twice to return to normal measuring mode.

During the average value measurement (time), the top line shows the elapsed time and the bottom line shows the average value.
Press the MODE button to switch between the measurement parameters.

7.2 Point averaging (network measurement)

For network measurements in air ducts, the device can record the measured values of  theindividual measuring points and automatically calculate the average value.
The average value is shown directly on the display.

• Press the AVG button twice to switch to average value mode (point).
  A dot icon appears on the display.

• Press the REC button to record your measuring point.

• Press the AVG button to return to normal measuring mode.

During the average value measurement (point), the top line shows the number of measurement points recorded and the bottom line shows the average value.
Press the MODE button to switch between the measurement parameters.

Setting mode

• To access the setting mode, press and hold the SET button for longer than 5 seconds while the appliance is switched on.
• Press the ▼ or ▲ button to select a parameter (P1 – P4)
• Press the SET button to call up the selected parameter.
• Press the SET button again to switch between the options.
• Press the REC button to confirm. The device now switches to the next parameter (P1 – P4).
• To exit the setting mode and return to normal measuring mode, press the ESC button.

8.1 P1: Pipe dimensions

• Press the ▼ or ▲ button to select P1 (if not already selected):
  The following input options are available:
  – Diameter (D)
  – Area (A/Area)
  – Length*Width (LW/Lingth.Width)

• Press the SET button to switch between the diameter (D), area (A/Area) and length*width (LW) parameters.

• Press the Rec button to select the desired parameter.

• Press the SET button to set the parameter.

• Press the ▼ or ▲ button to set the value

• Press the SET button to go to the next setting mode P2

8.2 P2: Area input

• Switch as described under 8.1 to parameter P1, area (A) and confirm with the REC button.

• You are now in the P2 setting mode.
  The setting range is 0 – 9999 cm2

• Press the SET button to enter the setting mode.

• Press the ▼ or ▲ button to make the setting.

• Press the AVG button to jump from one decimal point to the next during the setting.

• Press the SET button to accept the set value.

8.3 P2: Diameter

• Press the REC button until you are back in P1 mode.

• Press the SET button to switch to the diameter parameter (D) and confirm with the REC button.

• Press the SET button to enter the setting mode.
  The adjustment range is 0 – 99 cm.

• Press the ▼ or ▲ button to make the setting.

• Press the AVG button to jump from one decimal point to the next during the setting.

• Press the SET button to accept the set value.

8.4 P2: Length, width

• Press the REC button until you are back in P1 mode.

• Press the SET button to switch to the Length Width (S/W) parameter and confirm with the REC button.

• Press the SET button to enter the setting mode.
  The adjustment range is 0 – 99 cm.

• Press the ▼ or ▲ button to make the setting.

• Press the AVG button to jump from one decimal point to the next during the setting.

• Press the SET button to accept the set value. You are now in the mode for setting the width.

• Proceed in the same way here.

NOTE!
To switch between the view for setting the width and length, you can also press the ESC/L-W button.

8.5 P3: Unit “Flow velocityand temperature ”

• Press the ▼ or ▲ button to select P3 (if not already selected):

The following options are available::
Metric: m/s, cm and °C
Imperial: ft/m, inch and °F

• Press the SET button to switch between the metric and imperial unit systems.
• Press the REC button to confirm the selected unit.

The device now automatically switches to P4 mode.

8.6 P4: Unit “Volume flow ”

• Press the ▼ or ▲ button to select P4 (if not already selected):

The following options are available: m3/m, m3/h, cfm, l/s

• Press the SET button to switch between the units.
• Press the REC button to confirm the selected unit.
• The device now automatically switches to P1 mode.
• Press the ESC button to return to normal measuring mode.

Error codes

Check the position of the batteries
Insert new batteries Remove the batteries and reinsert them after one minute
| The display goes out when the appliance is switched on| Insert new batteries
Deactivate the automatic switch-off function: Switch on the device by simultaneously pressing the Power and ♦ Min/Max/HOLD button
E2| Value is below the spec. range for the volume flow| Ventilate the probe under normal ambient conditions.
E3| Value is above the spec. range for the volume flow rate| Ventilate the probe under normal ambient conditions.
E4| The original value was above or below the spec. range for the volume flow rate| Ventilate the probe under normal ambient conditions.
0.00E+00| Temperature-related circuit fault| Send to \Mohler Service
0.00E+00| Memory error| Send to Wailer Service

Maintenance and care

The appliance should only be cleaned with a damp cloth and a pH-neutral cleaning agent if necessary.

ATTENTION!
Never allow moisture to enter the inside of the appliance during cleaning.
ATTENTION!
The appliance housing may only be opened by specialised Wöhler personnel.

Warranty and service

11.1 Guarantee

If used correctly, the warranty period for the Wöhler TA 200 thermoanemometer is 12 months from the date of purchase, excluding batteries.
The costs of transporting and packing the device in the event of repair are not covered by this warranty.
This warranty is void if repairs and modifications have been carried out on the appliance by a third party who is not authorised to do so.

11.2 Service

SERVICE is very important to us. That’s why we are also there for you after the warranty period.

• You send the measuring device to us, we repair it within a few days and send it to you with our parcel service.
• You will receive immediate help from our technicians on the phone.

Declaration of Conformity

The product:
Product name: Wöhler thermoanemometer
Model number: TA 200
complies with the essential protection requirements laid down in the Council Directives on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (2014/30/EU).
The following standards were used to assess the product with regard to electromagnetic compatibility:

EN 61326-1 (2013)
BS EN 61326-1 (2013)
(IEC 61000-4-2 Ed.2.0 (2008)/-3 Ed.4.0 (2020)/-8 Ed.2.0 (2009)

Bad Wünnenberg, 07.05.2024

Dr. Michael Poeplau, Geschäftsführer/Managing Director

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