S421 Insertion Thermal Mass Flow Sensors

S421 In-Line Thermal Mass Flow Sensors measures standard flow, mass flow and consumption, independent of pressure and temperature changes.

Robust: IP65 casing provides protection in rough industrial environment
Informative: high accuracy, wide measuring range, rapid response time
Versatile: sensors can be easily swapped out

Description

The S421 In-Line Thermal Mass Flow Sensors is built to measure standard flow, mass flow, and consumption in rugged industrial environments. With a rapid response time and an operating range of up to -30…+140°C fluid temperature, the S421 provides detailed flow metrics in areas that might be otherwise impossible.

Benefits

Safer Workplace

Provides automated measurements from dangerous areas

Easier Audits

Detailed metrics from risky areas proves safety

Better View of Your Operation

Better information from previously difficult to measure areas

Features

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 interface
Selectable gas type (Some gasses require real gas calibration!)
Sensor can be calibrated in 2 different gasses.

Specs

Accuracy: 1.5% of reading + 0.3% full scale (Optional 1% of reading)
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
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
Operating pressure: 0 … 1.6 MPa (Optional: 4.0 MPa)
Analogue output:
- Signal: 4 … 20 mA, isolated
- Scaling: 0 … max flow
- Max load: 250R
Pulse output:
- Signal: Isolated switch output, normally open, Max 30 VDC, 20 mA
- Scaling: 1 pulse per consumption unit
Modbus output: Isolated RS-485 with Modbus/RTU protocol
Power supply: 15 … 30 VDC / 200 mA