Thermal flow meter METPOINT®️ FLM SF53

massvolumefor gas

Summary
METPOINT®️ FLM SF53 with BDL compact – volumetric flow measurement for continuous monitoring and data logging of compressed air.

Contents

• SF53 sensor, up to 185 m/s, insertion depth 220 mm
• BDL compact 2D data logger
• Connection cable, approx. 5 m

Description
The METPOINT FLM system from BEKO Technologies is an industrial solution for real-time volumetric flow measurement of compressed air. Using a thermal flow principle with two temperature sensors aligned in flow direction, it converts the electrical power required to maintain a fixed temperature difference (40 K) into a reliable volumetric/mass flow signal. The system supports energy optimization, leak detection and operational documentation.

Use and integration

• Installation: insertion probe installed under pressure into the pipeline (220 mm insertion depth) for inline measurement without major system interruption.
• Integration: connection to METPOINT BDL Compact for centralized logging and display; compatible with other recorders (DS/BDL).
• Data monitoring: display and storage via BDL Compact; communication via RS485 (Modbus RTU), analog 4-20 mA and pulse outputs.
• Maintenance: maintenance planning from recorded data (filter replacement, annual calibration, etc.).

Advantages and applications
Continuous end-of-line volumetric flow monitoring to identify consumption patterns, leaks and energy saving potential; low maintenance (no moving parts); pre-calibrated for specific pipe diameters or recalibratable for other diameters.

Table - Extracted data
Dimensions (mm): 220 mm insertion depth — 80 x 437 x 94 (W x H x D)
Operating temperature: sensor tube –30 ... +140 °C; housing –30 ... +80 °C
Supply voltage: 18 ... 36 VDC (optionally via plug-in power supply or via BDL)
Measurement technique: calorimetric thermal flow measurement
Media: compressed air, technical gases
Relative humidity: max. 90% RH (no water droplets)
Working pressure: 0 ... 10 bar (standard); up to 0 ... 50 bar (version E) with additional pressure protection
Sensor tube and fitting material: stainless steel 1.4301
Digital output: RS485 (Modbus RTU)
Analog output: 4 ... 20 mA (load < 500 Ω)
Pulse output: 1 pulse per m3 or per L, potential-free, passive max. 48 VDC / 150 mA

Integration METPOINT BDL Compact
The BDL Compact provides centralized recording and display of measured values (volumetric flow, pressure dew point, pressure, temperature, power, residual oil content). It offers 2 to 4 sensor inputs (analog, digital or mixed) and data logger options (memory, export).

Additional information
The SF53 sensor is supplied pre-calibrated for a 53.1 mm pipe diameter as a universal sensor and can be recalibrated for other diameters on request. Options include display variants and LED indication for configuration. Indicative weight: 7.5 kg.

Characteristics / technical specifications

• Model: METPOINT®️ FLM SF53 (SF53 sensor)
• Insertion depth: 220 mm
• Maximum process speed: up to 185 m/s (SF53 specification)
• Compatible recorder: METPOINT BDL Compact (2D)
• Connection cable: approx. 5 m (supplied)
• Housing dimensions: 80 x 437 x 94 mm (W x H x D)
• Sensor temperature range: –30 ... +140 °C; housing: –30 ... +80 °C
• Supply: 18 ... 36 VDC
• Measurement principle: calorimetric / thermal mass flow
• Measurable media: compressed air and technical gases
• Permissible humidity: max. 90% RH (no condensation)
• Working pressure: 0 ... 10 bar (standard); up to 0 ... 50 bar (E) with additional protection
• Sensor/fitting material: stainless steel 1.4301
• Outputs: RS485 (Modbus RTU), 4-20 mA, pulse output (1 pulse/m3 or per L)
• Weight (indicative): 7.5 kg
• Options: display variants, LED indication, pre-calibration for different diameters, external recorders (DS 400/DS 500) compatible