SF 321A
Art. no. 101596
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
Unit price
€431.60
Discountgroup: ARG01
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
| Measured medium 1: |
Fluid or gaseous media |
|---|---|
| Measuring range 1: |
3...300 cm/s (fluid) / 200...2000 cm/s (gas) (switchable) |
| Outputs 1: |
Measurement signal |
| Permissible temperature of medium 1: |
-20...+70 °C |
| Permits / approvals : |
ATEX |
| Protection type: |
IP67 |
Datasheet 12101 - Flow sensors SF 321A / SF 311A
Catalog 2025 (PDF)
Flip catalogue 2025
Technical data
| Measured medium 1: |
Fluid or gaseous media |
|---|---|
| Measuring range 1: |
3...300 cm/s (fluid) / 200...2000 cm/s (gas) (switchable) |
| Outputs 1: |
Measurement signal |
| Permissible temperature of medium 1: |
-20...+70 °C |
| Permits / approvals : |
ATEX |
| Protection type: |
IP67 |
Downloads
Datasheet 12101 - Flow sensors SF 321A / SF 311A
Catalog 2025 (PDF)
Flip catalogue 2025
SN 2301.1
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
SR 2301.3
Evaluation electronics 24 V DC with ATEX certification
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 onto mounting
rail. Protection class: IP 40 Dimensions: 45 x 78
x 120 mm (W x H x D) ATEX certification group II,
cat. (1)G, PTB 01 ATEX 2075
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 onto mounting
rail. Protection class: IP 40 Dimensions: 45 x 78
x 120 mm (W x H x D) ATEX certification group II,
cat. (1)G, PTB 01 ATEX 2075
Data sheet no. 12150
Einblicke zu 40 Jahren Oppermann
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