S-401
Insertion Type
FEATURES
- Thermal mass flow, independent of pressure and temperaturechanges
- Measures standard flow, mass flow and consumption
- Installation under pressure through 1/2” ball valve
- Sensor can be calibrated in 2 different gases
- Selectable gas type (Some gases require real gas calibration!)
- With the integrated display users can see the actual flow and the total consumption
- IP65 casing provides robust protection in rough industrialenvironment
- Isolated mA and pulse output signals or Modbus/RTU interface
- Very fast response time, high accuracy and wide measuring range
- Tube diameters of DN25 to DN500
- 2 installation types: center installation and 100 mm insertiondepth installation for bigger pipes (> DN250)
PRODUCT DESCRIPTION
FEATURES AT A GLANCE
- Measures standard flow, mass flow and consumption
- Thermal mass flow, independent of pressure and temperature changes
- IP65 casing provides robust protection in rough industrial environment
- Very fast response time
- High accuracy and wide measuring range
- Isolated mA and pulse output signals or Modbus/RTU or
- Modbus/TCP interface (with PoE option)
- Selectable gas type (Some gases require real gas calibration!)
- Sensor can be calibrated in 2 different gases
BENEFITS
- Tube diameters of DN25 and above
- 2 installation types: center installation and 100 mm insertion depth installation for bigger pipes (> DN250)
- Installation under pressure through 1/2” ball valve
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.
DIMENSION
ORDERING
S401 Thermal Mass Flow Meter (Insertion type) | ||
Order No. | Code | Description |
S695 4100 | S4010 | S401 Thermal Mass Flow Meter, 220mm shaft |
S695 4101 | S4011 | S401 Thermal Mass Flow Meter, 300mm shaft |
S695 4102 | S4012 | S401 Thermal Mass Flow Meter, 400mm shaft |
S695 4103 | S4013 | S401 Thermal Mass Flow Meter, 160mm shaft |
Connection thread | ||
Standard | A | G 1/2” |
A1006 | B | PT 1/2” Adapter |
A1005 | C | NPT 1/2” Adapter |
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 (92,7 m/s) | |
A1401 | B | Max range version (185 m/s), only for S401 |
A1402 | C | High speed range version (220 m/s), only for S401 |
A1403 | D | Low range version (1/3 or standard range) |
A1407 | F | Vacuum / Atmospheric range (1/3 of standard range) |
Calibration | ||
A | Standard calibration | |
A1405 | C | Bi-directional calibration, only for S401 |
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 |