BENEFITS
- Pipes sizes available: DN15, DN20, DN32, DN40, DN50, DN65, DN80
- Fits your needs: various process connections available (R-thread, EN 1092-1 flange or ANSI flange)
- Exchangeable sensor unit (easy sensor swap)
- Optional flow conditioner, no need for a straight inlet anymore
INSTALLATION AND SENSOR REMOVAL
TECHNICAL DATA
| General Specifications | |||||||
| Accuracy | 1.5 % of reading + 0.3 % full scale (Optional high accuracy: 1% of reading + 0.3% FS) | ||||||
| Repeatability | 0.25 % of reading | ||||||
| Sampling rate | > 10 samples / sec | ||||||
| Reference conditions | Can be set by user. Standard conditions are Ps = 0.1 MPa and Ts = 20 °C | ||||||
| Medium conditions: | -30 ... +140 °C / relative humidity < 90 % no condensation | ||||||
| Transport Temperature: | -30 ... +70 °C | ||||||
|
Material: |
Metal parts 1.4404 (SUS 316L) Casing PC + ABS
Sensor: Ceramic with glass coating |
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| Classification: | IP65 | ||||||
| Electrical connection: | 2 x M12, 5 poles (2 x M12 plug with screw terminals included) | ||||||
| Approvals: | CE, RoHS, FCC | ||||||
|
Operating temperature |
-30 ... +140 °C fluid temperature
-30 ... +70 °C casing -10 ... +50 °C casing with display |
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| Operating pressure | S401: 0 ... 5.0 MPa (>1.6 MPa need installation device) S421: 0.... 1.6 MPa (Optional: 4.0 MPa) | ||||||
|
Analogue output |
Signal: Scaling: Max load: | 4 ... 20 mA, isolated 0 ... max flow
250R |
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| Pulse output | Signal: Scaling: | Isolated switch output, normally open, Max 30 VDC, 20 mA 1 pulse per consumption unit | |||||
| Modbus output | Isolated RS-485 with Modbus/RTU protocol or Modbus/TCP output (with PoE option) | ||||||
| Power supply | 15 ... 30 VDC / 200 mA | ||||||
| Volumetric flow ranges | S401 | S421 | |||||
| Inch | DN | Di (mm) | S 401-S
(m3/h) |
S 401-M
(m3/h) |
S 401-H
(m3/h) |
Measuring range from to | |
| ½” | DN15 | - | - | - | 0.5 ... 90 m³/h | ||
| ¾” | DN20 | - | - | - | 0.9 ... 170 m³/h | ||
| 1” | DN25 | 27.3 | 0.5 ... 147.7 | 0.6 ... 294.7 | 0.6 ... 356.9 | 1.5 ... 290 m³/h | |
| 1¼” | DN32 | 36.0 | 0.9 ... 266.3 | 1.2 ... 531.5 | 1.2 ... 643.5 | 2 ... 500 m³/h | |
| 1½” | DN40 | 41.9 | 1.2 ... 366.7 | 1.5 ... 731.9 | 1.5 ... 886.2 | 3 ... 700 m³/h | |
| 2” | DN50 | 53.1 | 2.0 ... 600.1 | 2.5 ... 1197.6 | 3.0 ... 1450.0 | 4 ... 1000 m³/h | |
| 2½” | DN65 | 68.9 | 3.5 ... 1026.5 | 5.0 ... 2048.6 | 5.0 ... 2480.4 | 6 ... 1500 m³/h | |
| 3” | DN80 | 80.9 | 5.0 ... 1424.4 | 7.0 ... 2842.7 | 7.0 ... 3441.9 | 8 ... 2500 m³/h | |
| 4” | DN100 | 100.0 | 10 ... 2183.3 | 12 ... 4357.2 | 12.0 ... 5275.7 | ||
| 5” | DN125 | 125.0 | 13 ... 3419.6 | 18 ... 6824.4 | 18.0 ... 8263.1 | ||
| 6” | DN150 | 150.0 | 18 ... 4930.1 | 25 ... 9838.9 | 25.0 ... 11913.1 | ||
| 8” | DN200 | 200.0 | 26 ... 8785.6 | 33 ... 17533.3 | 42.0 ... 21229.5 | ||
| 10” | DN250 | 250.0 | 40 ... 13743.9 | 52 ... 27428.5 | 60.0 ... 33210.7 | ||
| 12” | DN300 | 300.0 | 60 ... 19814.8 | 80 ... 39544.1 | 100.0 ... 47880.4 | ||
Stated measuring ranges under following conditions:
Standard flow in air Reference pressure: 1000 hPa
Reference Temperature: +20 °C
The table above shows the air flow ranges for pipe sizes up to DN300 at standard conditions. At other reference conditions and gas types the flow range may vary, please contact your local sales support.
Furthermore it is possible to measure the air flow in bigger pipes (> DN300), for this please contact your local sales support.
DIMENSIONS
ORDERING
| S421 Thermal Mass Flow Meter (Inline type) | ||
| Order No. | Code | Description |
| S695 4120 | S4210 | S421 Thermal Mass Flow Meter, in-line type, 1.6 MPa version |
| S695 4121 | S4211 | S421 Thermal Mass Flow Meter, in-line type, 4.0 MPa version |
| Measuring section connection * | ||
| A130X | A | R-thread (ISO 7-1) |
| A132X | B | Flange, EN 1092-1, PN40 |
| A134X | C | Flange ANSI 16.5 |
| Measuring section size * | ||
| 1 | A | DN15 (1/2”) |
| 2 | B | DN20 (3/4”) |
| 3 | C | DN25 (1”) |
| 4 | D | DN32 (1.25”) |
| 5 | E | DN40 (1.5”) |
| 6 | F | DN50 (2”) |
| 7 | G | DN65 (2.5”) |
| 8 | H | DN80 (3”) |
| Gas type 1 | ||
| A1007 | A | Air |
| A1008 | B | CO2 |
| A1009 | C | O2 (Oil- & grease-free cleaned) |
| A1010 | D | N2 |
| A1011 | E | N2O |
| A1012 | F | Argon |
| A1013 | G | Natural Gas |
| A1014 | H | H2 (real gas calibration) |
| A1015 | I | Other gas (Please specify) |
| A1016 | J | He (real gas calibration) |
| A1017 | K | C3H8 |
| Z | No Second Gas | |
| Gas type 2 (same selections as above) | ||
| Range | ||
| A | Standard range version | |
| A1403 | D | Low range version (1/3 of standard range) |
| A1407 | F | Vacuum / Atmospheric range (1/3 of standard range) |
| Calibration | ||
| A | Standard calibration | |
| A1404 | E | High accuracy calibration (1 % ± 0.3 %F.S.) |
| Output | ||
| A1410 | A | Analog 4 ... 20 mA, Pulse output |
| A1411 | B | Modbus/RTU output |
| A1413 | C | Analog 4 ... 20 mA, Pulse output compatible to S400 |
| A1424 | D | Modbus/TCP output (including 5 m M12-cable with RJ45 Plug) (with PoE option) |
| Display | ||
| A | Without display Standard | |
| A1420 | B | With display |
| Flow conditioner (optional) | ||
| A107X | A | R-thread flow conditioner |