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...+60 °C
Permits / approvals :
ATEX
Protection type:
IP67
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Downloads

Datasheet 12101 - Flow sensors SF 321A / SF 311A
Catalogue 2024 (PDF)
Catalogue price list 2024 (Excel)
Catalogue price list 2024 (PDF)
Flip catalogue 2024

Accessories

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
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

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