CI-FT211X/212X Thermal Mass Flow Meter
The CI-FT211x and CI-FT212x are advanced thermal mass flow meters designed for precise measurement of standard flow, mass flow, gas consumption, and temperature. Featuring a no-moving-parts design, they offer stable performance, high reliability, and strong resistance to vibration. With full-digital signal processing and a wide measuring range (as low as 0.1 Nm/s, turndown ratio up to 1:2500), they are ideal for low-flow, volatile, and single-equipment gas monitoring. Built-in smart diagnostics detect sensor contamination and prevent overheating, ensuring long-term accuracy and safety.
Feature:
Ultra-low measuring limit down to 0.1 Nm/s;
Full-digital signal processing eliminates zero-point drift and ensures high accuracy and long-term stability;
Smart terminal support via mobile app with Bluetooth for remote data viewing and configuration;
30+ calibration points to overcome nonlinear defects in thermal measurement;
Non-intrusive installation under pressure with almost zero pressure drop;
No need for pressure or temperature compensation due to integrated thermal measurement principle;
Wide turndown ratio of 1:2500, with a measurement range from 0.1 Nm/s to 250 Nm/s;
Fully isolated electrical structure to eliminate field disturbance;
2.8″ capacitive IPS touch LCD with ultra-wide viewing angle;
Large-capacity data logging, supporting up to 10 million values;
Wireless Bluetooth configuration and data transmission;
Standard Modbus RTU (RS485) communication with 4–20 mA and pulse output;
Insert type (CI-FT211x): suitable for DN20–DN1000 pipes, with under-pressure installation via ½” ball valve;
Pipe type (CI-FT212x): pipe sizes DN15, DN20, DN32, DN40, DN50, DN65, DN80; connection options include R-type thread, Flange EN1092-1, ANSI / B16.5;
Flow:
Measuring Range: 0(0.1)~250 Nm/s
Accuracy: ±(1.5% RD + 0.3% FS) [1% RD Option]
Sampling Rate: > 20 Samples/sec
Medium: Compressed Air, Nitrogen, Oxygen, Carbon Dioxide & other
Reference Conditions: non-condensing gases \ 20 °C,
1 bar(a) -ISO 1217 (configurable)
Output:
Flow Rate/Temperature: Standard 4~20 mA output (configurable)
Pulse output: Consumption/Alarm (standard)
Digital output: Modbus RTU RS485 (standard)
Wirless Communication: Bluetooth (standard), Wi-SUN (optional), IOT-4G (optional)
Connector: 2 × 5pin M12, Female
Power:
Power Supply: DC18~30VC, 5W @ DC 24V
Display & Data log:
Display: 2.8″ IPS LCD with capacitive touch
Data Log: Max. 10,000,000 values
Operating Environment:
Environment Temperature: -30~+70 °C
Medium Temperature: -40~+150 °C
Operating Pessure: CI-FT211x: 0~6.3 MPa(a) (>1.7 MPa.a high pressure jig required)
CI-FT212x: 0~1.7 MPa(a) (4.0 / 6.3 MPa(a) Optional)
Other:
Process Connection: G1/2″ (ISO 228-1) (CI-FT211x Insert type)
EMC: Compliant with IEC 61326-1
Pole/Pipe Section Material: SUS304 (Standard)/SUS316 (Optional)