www.ahlborn.com
AIR FLOW
10
Thermoanemometer
Type FV A645 TH2/TH3
Type (includes calibration certificate)
For flow velocities
from 0.1 … 2.000m/s, *
max. resolution: 0.001m/s
Order No. FVA645TH2
For flow velocities
from 0.1 … 15.00m/s,
max. resolution: 0.01m/s
Order No. FVA645TH3
* up to 1.7 m/s on devices
with 24-bit delta-sigma A/D converter (50 Hz)
F Probe tube with heated miniature thermistor for flow
measurement and highly precise Ni10 temperature sensor for
temperature compensation.
F Evaluation electronics are located in a separate module
housing.
F Measurement modules can be directly plugged onto the
measuring instruments.
F Particularly suitable for low wind velocities, e.g. for draught
measurements at work places.
Technical Data:
10.08
01/2005 We reserve the right to make technical changes.
☞
When attaching the measuring module other input
sockets will be blocked. If the blocked input sockets need
to be used or if the module can be directly installed at
the measuring location, an extension cable ZA 9060-VKx
(maximum length 5m) must be used.
Air speed:
Accuracy:
0.1 … 0.5m/s:
0.5 … 3.5m/s:
3.5 … 15.0m/s:
Temperature:
Meas. range:
Resolution:
Operative range:
Compensation:
Nominal temperature:
Air humidity:
Operating voltage:
Current consumption:
Accessories:
Extension cable 2m long
Extension cable 4m long
Dimensions:
Inlet opening:
Cable length:
Order No. ZA9060VK2
Order No. ZA9060VK4
Module size:
± 0.05m/s
± 0.01m/s ± 3% of final val.
± 0.10m/s ± 3% of final val.
–20.0 … 80.0°C
0.1K
0 … 40°C
10 … 36°C
22 °C ± 2K
0 … 90% r.H.
(non-condensing)
6 … 13V
through ALMEMO® device
50mA (mains adapter for
ALMEMO® device is
recommended)
300mm long, 8mm Ø
9mm
1.5m with
ALMEMO® meas. module
37 x 36 x 22mm
10
AIR FLOW
Technical Data:
Electronics Box with Sensor
Measuring range:
FV A605 TA1(O)
FV A605 TA5(O)
0.01 to 1m/s
0.15 to 5m/s
Resolution:
FV A605 TA1(O)
FV A605 TA5(O)
0.001m/s
0.01m/s
Accuracy:
FV A605 TA1(O)
FV A605 TA5(O)
F Probe tube with heated miniature thermistor for flow
measurement and precision NTC resistance for automatic
compensation.
F Evaluation electronics are located in a separate sensor
transmitter module.
F High accuracy as a result of integrated temperature
compensation and individual calibration in wind tunnel, with
laser Doppler anemometer as reference system.
F Response time only 2s for smoothing the measured value
indicated, optionally without smoothing with 100ms response
time.
F Suitable for measuring small flow velocities in gaseous
substances, particularly for control systems and monitoring.
F Typical applications include comfort index measurements,
HEVAC applications, environmental technology, clean room
technology and process measuring and control technology.
±1.0% of final value and
±1.5% of meas. value
±0.5% of final value
±1.5% of meas. value
Nominal conditions:
22°C, 960hPa
Automatic
temperature compensation:
effective in range 0 to 40°C
Temperature influence:
±0.5% of fin. value/°C
01/2005 We reserve the right to make technical changes.
Thermoelectric Flow Sensor
Type FV A605 TA
Sensor
Head size:
Ø 8mm
Shaft:
Ø 15mm
Operative range:
0 to 40°C
Angle of attack:
FV A605 TA1/TA5
FV A605 TA1O/TA5O
±30°
±180°
Inlet opening:
FV A605 TAx:
FV A605 TAxO:
9mm
protecting cage 110mm
Sensor length:
FV A605 TAx:
FV A605 TAxO
300m
310mm
Sensor cable length:
1.5m
Storage temperature:
–30 to +90°C
General Technical Specifications
A special connector cable allows to connect the flow
sensors to all ALMEMO® multi-purpose devices, data
loggers and data acquisition systems. For volume flow
rate measurements the cross section of the ventilating
shaft can be easily entered into ALMEMO® devices. A
problem-free averaging is then possible.
Types (incl. clamping holder
and ALMEMO® connecting cable 1.5m long):
Unidirectional (sensitive in one direction)
with protected measuring tip
Measuring range 0 to 1m/s
Order No. FVA605TA1
Measuring range 0 to 5m/s
Order No. FVA605TA5
Omnidirectional (direction-independent, symmetrical ball tip)
with protecting cage (Ø110mm) including carry-case
Measuring range 0 to 1m/s
Order No.FVA605TA1O
Measuring range 0 to 5m/s
Order No.FVA605TA5O
Measurement medium:
dry air or inert gases
Response time:
standard:
smoothened: 1 τ = 2s
option OAA605TAU:
not smoothened: 1 τ = 100ms
Power supply:
through ALMEMO® device
(approx. 7… 10V)
Current consumption:
approx. 70mA
Output signal:
0 … 1V, linearised,
load resistance min. 10kohms
Housing:
Dimensions:
Protection system:
Weight:
100 x 60 x 35mm (L x W x H)
IP 40 (aluminium housing)
approx. 250g
Operating temperature:
0 to 40°C
Storage temperature:
–30 to 90°C
Air humidity:
0 … 90% r.H., non-condensing
Adjusting reference:
laser Doppler wind tunnel,
adjustment at 22°C/approx.
960hPa, (certificate according
to SN EN 45001)
www.ahlborn.com
10.09
www.ahlborn.com
AIR FLOW
10
Thermoanemometer
Type MT 84x5
Multi-purpose sensor
Types (including calibration / test certificate)
Multi-purpose sensor with protected measuring tip,
sensitive in one direction
Order No. MT8455
Rod sensor with small measuring tip,
sensitive in one surface plane
Order No. MT8465
Omnisensor with ball tip,
sensitive in all directions
Order No. MT8475
Rod sensor
F Laser-calibrated, highly precise probes with adjustable
measuring ranges and standard output signals.
F Suitable for use in all fields of air conditioning, ventilating,
indoor applications and measurements at work places
(draught).
Omnisensor
A special connector cable allows to connect the
thermoanemometers to all ALMEMO® instruments.
Please specify the required measuring range in m/s when
ordering.
Technical Data:
Measuring ranges:
Output signals:
Accuracy:
Nominal temperature:
10.10
01/2005 We reserve the right to make technical changes.
Temperature influence:
Nominal position:
Resolution:
Reproducibility:
Power supply:
Current consumption:
Output time constant:
Operative range:
Dimensions:
Cable length:
Housing:
MT8455/MT8465:
adjustable from 0.125m/s to
1.0 / 1.25 / 1.5 / 2.0 / 2.5 / 3.0 / 4.0 / 5.0 / 7.5 / 10.0 / 12.5 / 15.0
20.0 / 25.0 / 30.0 / 40.0 / 50.0m/s
MT8475:
adjustable from 0.05m/s to
0.5 / 0.75 / 1.0 / 1.25 / 1.5 / 2.0 / 2.5m/s
0–5V, 0–10V, 1–5V, 2–10V, 0–20mA, 4–20mA adjustable
MT8455/MT8465:
± 2% of meas.val. ±0.5% of selected range
MT8475:
± 3% of meas.val. ±1% of selected range
MT8455/MT8465:
18–28°C
MT8475:
20–26°C
MT8455/MT8465:
+0.2% per °C drift when out of nominal range
MT8475:
+0.5% per °C drift when out of nominal range
horizontal
0.07% of selected range
<±1% of measured value
11 to 30VDC or 18 to 28 VAC
max. 350mA
selectable from 0.05 to 10s
0 to 60°C
Probe 300 mm (75 / 150 / 225 mm also available on request), d = 6.4mm, measuring tip 32mm
5m
126 x 80mm, 60mm high
Accessories:
ALMEMO® connecting cable 2m long (please specify measuring range in m/s)
Rechargeable battery pack 12V / 500mA / 1.5Ah incl. charger for handheld devices ALMEMO® 2290x
For use in laboratories mains adapter unit 12V/800mA
Small universal stand, suitable for all probes
Order No.
Order No.
Order No.
Order No.
ZA8400AK
ZB2012AP
ZB1012NA2
ZX9000ST