Air flow
FT-MOD-I-200-D-NFC
Air flow
Air flow temperature transmitter with display and NFC interface Modbus output, L = 200 mm
For measurement of air flow and temperature in
ventilation ducts. Measuring range flow 0 – 20
m/s, temperature: 0 – 50 °C. 10x offset
adjustable via rotary switch. 8 lid positions
selectable. 5-point calibration and
parameterization (address, baud rate) via the NFC
interface on the display. Incl. adjustable
mounting flange F-10 for adjusting the immersion
depth (50 – 190 mm). Output signal linear due to
microprocessor technology. Supply voltage 15 – 30
V AC/DC. Power consumption: 205 mA (24 V AC)/70
mA (24 V DC). Sensor diameter 10 mm (stainless
steel). Housing: Base: PBT, color similar to RAL
7016. Display: PC, transparent. Ring: PBT, color
similar to RAL 1003. IP65 protection (incl. seal
ring). 2 x strain relief M16. Fast wiring with
double-row spring terminals. Cable cross-section
0.2 – 1.5 mm². Terminal resistance via DIP
switch. Leakage resistance: 100 MΩ, 20 °C, 500 V
DC. Permissible ambient conditions: -20 °C to
70°C. 0 – 95% rH (non-condensing).
Data sheet no. 11400
For measurement of air flow and temperature in
ventilation ducts. Measuring range flow 0 – 20
m/s, temperature: 0 – 50 °C. 10x offset
adjustable via rotary switch. 8 lid positions
selectable. 5-point calibration and
parameterization (address, baud rate) via the NFC
interface on the display. Incl. adjustable
mounting flange F-10 for adjusting the immersion
depth (50 – 190 mm). Output signal linear due to
microprocessor technology. Supply voltage 15 – 30
V AC/DC. Power consumption: 205 mA (24 V AC)/70
mA (24 V DC). Sensor diameter 10 mm (stainless
steel). Housing: Base: PBT, color similar to RAL
7016. Display: PC, transparent. Ring: PBT, color
similar to RAL 1003. IP65 protection (incl. seal
ring). 2 x strain relief M16. Fast wiring with
double-row spring terminals. Cable cross-section
0.2 – 1.5 mm². Terminal resistance via DIP
switch. Leakage resistance: 100 MΩ, 20 °C, 500 V
DC. Permissible ambient conditions: -20 °C to
70°C. 0 – 95% rH (non-condensing).
Data sheet no. 11400
JY
Air flow
Power supply switch mode input 24 V AC/DC
Transforms 24 V AC/DC to other DC voltage output:
10 V DC, max. 1.0 A 12 V DC, max. 1.0 A 16 V DC,
max. 1.0 A 18 V DC, max. 1.0 A 24 V DC, max. 1.0
A Dimensions: 45 x 92 x 62 mm (W x H x D)
Protection class: IP 20
Data sheet no. 14201
Transforms 24 V AC/DC to other DC voltage output:
10 V DC, max. 1.0 A 12 V DC, max. 1.0 A 16 V DC,
max. 1.0 A 18 V DC, max. 1.0 A 24 V DC, max. 1.0
A Dimensions: 45 x 92 x 62 mm (W x H x D)
Protection class: IP 20
Data sheet no. 14201
RLSW 6.1.1
Air flow
Air flow monitor 230 V AC
Compact device for on-site installation and with
separate air flow sensor with mounting flange for
installation in ducts. Calorimetric measuring
principle. With temperature compensation and
sensor rupture protection. 2 potential-free
changeover contacts. Internal reset button.
Adjustable via potentiometer: Flow speed: 0.2 –
15 m/s Switching hysteresis: 1 – 10% Start-up
override: 15 – 120 s Switch-off delay: 2 – 20 s
When applying the operating voltage the air flow
monitor is activated. If the adjusted flow speed
is reached during the startup bridging, the flow
monitoring relay connects and e.g. unlocks the
humidification. If the flow speed is not reached,
the alarm relay connects. If, during operation,
the flow speed falls below the set value, the
flow relay connects after expiring the switch-off
delay. Maximum immersion depth of the sensor: 120
mm, protection class: IP 68, Medium temperature:
0 – +80 °C, ambient temperature: 0 – +60 °C,
protection class: IP 65, breaking capacity of the
relay contacts: 10 A/250 V, connection cable of
the sensor: 1.8 m, 3 x 0.5 mm ²
Data sheet no. 11201
Compact device for on-site installation and with
separate air flow sensor with mounting flange for
installation in ducts. Calorimetric measuring
principle. With temperature compensation and
sensor rupture protection. 2 potential-free
changeover contacts. Internal reset button.
Adjustable via potentiometer: Flow speed: 0.2 –
15 m/s Switching hysteresis: 1 – 10% Start-up
override: 15 – 120 s Switch-off delay: 2 – 20 s
When applying the operating voltage the air flow
monitor is activated. If the adjusted flow speed
is reached during the startup bridging, the flow
monitoring relay connects and e.g. unlocks the
humidification. If the flow speed is not reached,
the alarm relay connects. If, during operation,
the flow speed falls below the set value, the
flow relay connects after expiring the switch-off
delay. Maximum immersion depth of the sensor: 120
mm, protection class: IP 68, Medium temperature:
0 – +80 °C, ambient temperature: 0 – +60 °C,
protection class: IP 65, breaking capacity of the
relay contacts: 10 A/250 V, connection cable of
the sensor: 1.8 m, 3 x 0.5 mm ²
Data sheet no. 11201
RY 1-U
Air flow
Threshold switch 24 V AC, 1 VA
To convert analog input signals into
2-point-signals. Frame for installation on 35 mm
DIN-installation rails in control consoles.
Input: 0 – 10 V DC < 0.2 mA Output: Relay with
changeover contact, 230 V, 10 A Protection class:
IP 20 Dimensions: 22.5 x 77 x 52.5 mm (W x H x D)
Threshold value setting via potentiometer
Hysteresis adjustable, 0.2 – 1 V
Data sheet no. 14201
To convert analog input signals into
2-point-signals. Frame for installation on 35 mm
DIN-installation rails in control consoles.
Input: 0 – 10 V DC < 0.2 mA Output: Relay with
changeover contact, 230 V, 10 A Protection class:
IP 20 Dimensions: 22.5 x 77 x 52.5 mm (W x H x D)
Threshold value setting via potentiometer
Hysteresis adjustable, 0.2 – 1 V
Data sheet no. 14201
SF 311A
Air flow
Flow sensor ATEX-certified group II, cat. 1/2 G, Zone 0/1
Housing made of V4A. Connection to separate
evaluation electronics. Device designation Ex II
1/2 G EEx ia IIC T4 Based on the calorimetric
principle, the flow sensor can be used for
monitoring liquid and gaseous media.
Pressure-resistant up to 300 bar. Protection
class: IP 67. Temperature class T4. Medium
temperature: -20°C – +60°C Measuring range: 2 –
20 m/s, thread G 1/2 A ATEX test certification:
DMT 03 ATEX E090X
Data sheet no. 12101
Housing made of V4A. Connection to separate
evaluation electronics. Device designation Ex II
1/2 G EEx ia IIC T4 Based on the calorimetric
principle, the flow sensor can be used for
monitoring liquid and gaseous media.
Pressure-resistant up to 300 bar. Protection
class: IP 67. Temperature class T4. Medium
temperature: -20°C – +60°C Measuring range: 2 –
20 m/s, thread G 1/2 A ATEX test certification:
DMT 03 ATEX E090X
Data sheet no. 12101
SF 321A
Air flow
Flow sensor with ATEX certification Group II Category 2G
Housing made of V4A. Connection to separate
evaluation electronics. Device designation Ex II
2 G EEx ia IIC T4 Based on the calorimetric
principle, the flow sensor can be used for
monitoring liquid and gaseous media.
Pressure-resistant up to 30 bar. Protection
class: IP 67. Temperature class T4, 6 m
connection cable TPE-S,5 x 0.34 mm² Media
temperature: -26 °C – +80 °C Measuring range: 2 –
20 m/s thread G1/2 A ATEX test certification: DMT
03 ATEX E091
Data sheet no. 12101
Housing made of V4A. Connection to separate
evaluation electronics. Device designation Ex II
2 G EEx ia IIC T4 Based on the calorimetric
principle, the flow sensor can be used for
monitoring liquid and gaseous media.
Pressure-resistant up to 30 bar. Protection
class: IP 67. Temperature class T4, 6 m
connection cable TPE-S,5 x 0.34 mm² Media
temperature: -26 °C – +80 °C Measuring range: 2 –
20 m/s thread G1/2 A ATEX test certification: DMT
03 ATEX E091
Data sheet no. 12101
SL 101.1
Air flow
Air flow monitor 230 V AC
With mounting flange for installation in
ventilation ducts. Optical indicator of the
operating conditions (start-up – operation –
failure) via LED. Calorimetric measuring
principle. 1 floating normally open contact The
threshold value can be steplessly adjusted via a
potentiometer. Setting range: 1 – 10 m/s. If the
value falls below the threshold, the relay drops
out. Maximum immersion depth: 115 mm. Ambient
temperature: -10 – +50 °C. Protection class: IP
65. Breaking capacity of the relay contact: 3
A/250 V. Connection cable: 2 m, 4 x 0.5 mm².
Data sheet no. 11101
With mounting flange for installation in
ventilation ducts. Optical indicator of the
operating conditions (start-up – operation –
failure) via LED. Calorimetric measuring
principle. 1 floating normally open contact The
threshold value can be steplessly adjusted via a
potentiometer. Setting range: 1 – 10 m/s. If the
value falls below the threshold, the relay drops
out. Maximum immersion depth: 115 mm. Ambient
temperature: -10 – +50 °C. Protection class: IP
65. Breaking capacity of the relay contact: 3
A/250 V. Connection cable: 2 m, 4 x 0.5 mm².
Data sheet no. 11101
SL 520 1.3S
Air flow
Luftstrom-Messwertgeber 24 V DC
Mit Montageflansch zur Montage in Lüftungskanälen.
Optische Betriebsanzeige
durch LED.
Messprinzip kalorimetrisch.
1 Analogausgang 0 - 10 V nicht linear.
Eingestellt auf:
2m/s = 1V - 20 m/s = 10V.
Maximale Eintauchtiefe: 115 mm.
Umgebungstemperatur: -10 - +50°C.
Schutzart: IP 65.
Anschlusskabel: 2 m, 4 x 0,5mm²
mit Stecker M16, Codierung A.
Datenblatt-Nr. 11102
Mit Montageflansch zur Montage in Lüftungskanälen.
Optische Betriebsanzeige
durch LED.
Messprinzip kalorimetrisch.
1 Analogausgang 0 - 10 V nicht linear.
Eingestellt auf:
2m/s = 1V - 20 m/s = 10V.
Maximale Eintauchtiefe: 115 mm.
Umgebungstemperatur: -10 - +50°C.
Schutzart: IP 65.
Anschlusskabel: 2 m, 4 x 0,5mm²
mit Stecker M16, Codierung A.
Datenblatt-Nr. 11102
SN 2301.1
Air flow
Evaluation electronics 230 V AC ATEX certification group II, cat. (1)G, PTB 01 ATEX 2075
With amplifier for connection of ex flow sensors
with relay output for air flow and line
monitoring. The setting of the threshold value
for gaseous and liquid media is done by slide
controls and potentiometers. The current state is
displayed by a 11-digit LED display. The sensor
and power supply circuit are galvanically
isolated from each other. The evaluation
electronics and the connecting line is monitored
for wire breakage and short-circuit. If the value
falls below the threshold or in the event of wire
breakage or short-circuit, the accompanying
monitoring relay drops out. Breaking capacity of
the relay contacts: 4 A/250 V AC Housing with
click-in base for installation on mounting rail.
Protection class: IP 40 Dimensions: 45 x 78 x 120
mm (W x H x D)
Data sheet no. 12150
With amplifier for connection of ex flow sensors
with relay output for air flow and line
monitoring. The setting of the threshold value
for gaseous and liquid media is done by slide
controls and potentiometers. The current state is
displayed by a 11-digit LED display. The sensor
and power supply circuit are galvanically
isolated from each other. The evaluation
electronics and the connecting line is monitored
for wire breakage and short-circuit. If the value
falls below the threshold or in the event of wire
breakage or short-circuit, the accompanying
monitoring relay drops out. Breaking capacity of
the relay contacts: 4 A/250 V AC Housing with
click-in base for installation on mounting rail.
Protection class: IP 40 Dimensions: 45 x 78 x 120
mm (W x H x D)
Data sheet no. 12150