S452 Volumetric Flow Ranges

 Inch

 DN

 S-Range (m3/h)

 M-Range (m3/h)

 HS-Range (m³/h)

 ½”

 DN15

 0.2 ... 45.6

 0.4 ... 91.0

 0.48 ... 110

 ¾”

 DN20

 0.4 ... 89.1

 0.9 ... 178

 1.09 ... 215

 1”

 DN25

 0.6 ... 148

 1.2 ... 295

 1.82 ... 357

 1½”

 DN40

 1.5 ... 367

 2.9 ... 732

 4.36 ... 886

 2”

 DN50

 2.4 ... 600

 4.8 ... 1,198

 7.26 ... 1,450

 2½”

 DN65

 4.1 ... 1,027

 8.2 ... 2,049

 N/A

 3”

 DN80

 5.7 ... 1,424

 11.4 ... 2,841

 N/A

 Measurement

 Flow

 Accuracy

 ±(1.5 % of reading + 0.3 % full scale)

 Selectable units

 m³/h, m³/min, l/min, l/s, cfm, kg/h, kg/min, kg/s

 Repeatability

 0.25 % o.RDG

 Sensor

 Thermal mass flow sensor

 Sampling rate

 3 samples / sec

 Turndown ratio

 200:1

 Response time (t90)

 0.5 sec

 Consumption

 Selectable units

 m³, ft³, l, kg

 Reference conditions

 Selectable conditions

 20 °C 1000 mbar (ISO1217), 0 °C 1013 mbar (DIN1343) freely adjustable

 Signal / Interface & Supply 

 Analog output

 Signal

 4 ... 20 mA (4-wire), isolated 

 Scaling

 0 ... max flow, freely adjustable

 Load

 Max. 400 Ohm

 Update rate

 Value updated ever 1 sec

 Pulse output

 Signal

 Switch output, normally open, max. 30 VDC, 200 mA

 Scaling

 1 pulse per consumption unit (selectable)

 Fieldbus

 Protocol

 Modbus/RTU, HART, M-Bus

 Supply

 16 ... 30 VDC

 Current consumption

 200 mA

 General data

 PC Software

 USB Service Kit + Software

 Display

 Integrated

 LCD

 Material

 Process connection

 Stainless steel 1.4404 (SUS 316L)

 Housing

 Al alloy

 Sensor

 Stainless steel 1.4404 (SUS 316L)

 Metal parts

 Stainless steel 1.4404 (SUS 316L)

 Miscellaneous

 Electrical connection

 Screw terminals

 Protection class

 IP67

 Approvals

 CE, RoHS, FCC, Ex-Options

 Process connection

 S450: G1/2” (ISO 228/1) 

 S452: Measuring section with R-thread or Flange

 Weight

 S450: 1.75 kg S452: 1.25 kg (without measuring section)

 Operating conditions

 Medium

 Air, N₂, O₂, CO₂ and other non corrosive gases

 Medium temperature

 S450: -40 ... +150 °C
 S452: -40 ... +100 °C 

 Medium humidity

 < 90 %, no condensation

 Operating pressure

 S450: 0 ... 1.6 MPa

     (applicable for option A1280) 

     0 ... 5.0 MPa

     (applicable for option A1279)*

 S452: 0 ... 4.0 MPa

 *For pressure above 1.5 MPa use the installation device 

   A530 1106 or A530 1113.

 Ambient temperature

 -40 ... +65 °C

 Storage temperature

 -30 ... +70 °C

 Transport temperature

 -30 ... +70 °C

 Pipe sizes

 S450: ½” ... 12” (bigger pipes on request) 

 S452: ½” ... 3”