Description

Kofloc EX700 Mass Flowmeter

Kofloc EX700 Mass Flowmeter is a compact, high-precision thermal mass flow meter engineered for precise gas measurement in industrial processing, laboratory analysis, and OEM equipment manufacturing. Built with advanced thermal capillary sensing technology, the Kofloc EX700 Mass Flowmeter delivers fast response times, high accuracy, and excellent zero-point stability without requiring temperature or pressure corrections. Housed in a durable enclosure with analog and digital output options, it provides reliable gas telemetry for burner control, gas mixing, and semiconductor processing.

Installation & Setup Best Practices

To ensure long-term measuring accuracy, sensor stability, and electrical protection when installing the Kofloc EX700 Mass Flowmeter, follow these guidelines:

Inline Gas Filtration: Always install a 5 to 10-micron particle filter directly upstream of the meter inlet to prevent moisture, oil droplets, or dust from contaminating the micro-capillary tube.
Proper Gas Calibration Factor: When operating the meter with gases other than the factory calibration gas (typically Air or $N_2$ ), apply the appropriate conversion factor (K-factor) in your control system.
Power & Grounding Shielding: Use shielded multi-conductor signal cables grounded at a single point to prevent electrical noise from corrupting the 0–5V or 4–20mA analog output signals.

Specifications

Parameter	Specification
Manufacturer / Brand	KOFLOC Corp.
Model Series	EX-700 Series / EX700
Focus Keyword Target	Kofloc EX700 Mass Flowmeter
Measurement Principle	Thermal Mass Flow Sensing (Capillarity Method)
Available Gas Flow Ranges	$10 text{SCCM}$ up to $100 text{SLM}$ (Full scale variants)
Measurement Accuracy	$pm 1.0%$ Full Scale
Repeatability	$pm 0.2%$ Full Scale
Response Time	$le 1.0 text{second}$ ( $0% to 99%$ response)
Max Operating Pressure	0.49 MPa ( $4.9 text{bar}$ / $71 text{PSI}$ )
Operating Temperature	5°C to 50°C (41°F to 122°F)
Output Signals	0–5V DC, 4–20mA Analog, RS-485 Modbus RTU
Wetted Materials	Stainless Steel 316 / 304, Viton, Fluororubber

Features

Direct Mass Flow Measurement: Thermal sensing calculates true mass flow without needing external temperature or pressure compensation.
High Measurement Precision: Micro-capillary sensor yields $pm 1.0%$ full-scale accuracy with superior zero-point stability.
Rapid Signal Response: Fast response rate captures quick flow transients and dynamic gas shifts.
Corrosion-Resistant Stainless Steel Body: Stainless steel construction ensures long operational life when handling dry process gases.

Applications

Semiconductor & Photovoltaic Production: High-purity shielding and purge gas metering (Nitrogen, Argon, Helium) in cleanroom processing.
Gas Blending & Analytical Instruments: Accurate carrier gas flow metering for gas chromatography and mass spectrometry.
Industrial Burner & Flame Control: Mass flow regulation of combustible fuel gas and oxygen mixtures for combustion systems.
Bioreactors & Fermentation Systems: Precise sparging gas monitoring for pharmaceutical and bio-process growth tanks.

Kofloc EX700 Mass Flowmeter

Installation & Setup Best Practices

To ensure long-term measuring accuracy, sensor stability, and electrical protection when installing the Kofloc EX700 Mass Flowmeter, follow these guidelines:

Inline Gas Filtration: Always install a 5 to 10-micron particle filter directly upstream of the meter inlet to prevent moisture, oil droplets, or dust from contaminating the micro-capillary tube.

Proper Gas Calibration Factor: When operating the meter with gases other than the factory calibration gas (typically Air or $N_2$ ), apply the appropriate conversion factor (K-factor) in your control system.

Power & Grounding Shielding: Use shielded multi-conductor signal cables grounded at a single point to prevent electrical noise from corrupting the 0–5V or 4–20mA analog output signals.

Parameter

Specification

Manufacturer / Brand

KOFLOC Corp.

Model Series

EX-700 Series / EX700

Focus Keyword Target

Kofloc EX700 Mass Flowmeter

Measurement Principle

Thermal Mass Flow Sensing (Capillarity Method)

Available Gas Flow Ranges

10 text{SCCM}

up to

100 text{SLM}

(Full scale variants)

Measurement Accuracy

pm 1.0%

Full Scale

Repeatability

pm 0.2%

Full Scale

Response Time

le 1.0 text{second}

(

0% to 99%

response)

Max Operating Pressure

0.49 MPa (

4.9 text{bar}

71 text{PSI}

)

Operating Temperature

5°C to 50°C (41°F to 122°F)

Output Signals

0–5V DC, 4–20mA Analog, RS-485 Modbus RTU

Wetted Materials

Stainless Steel 316 / 304, Viton, Fluororubber

Features

Direct Mass Flow Measurement: Thermal sensing calculates true mass flow without needing external temperature or pressure compensation.

High Measurement Precision: Micro-capillary sensor yields $pm 1.0%$ full-scale accuracy with superior zero-point stability.

Rapid Signal Response: Fast response rate captures quick flow transients and dynamic gas shifts.

Corrosion-Resistant Stainless Steel Body: Stainless steel construction ensures long operational life when handling dry process gases.

Applications

Semiconductor & Photovoltaic Production: High-purity shielding and purge gas metering (Nitrogen, Argon, Helium) in cleanroom processing.

Gas Blending & Analytical Instruments: Accurate carrier gas flow metering for gas chromatography and mass spectrometry.

Industrial Burner & Flame Control: Mass flow regulation of combustible fuel gas and oxygen mixtures for combustion systems.

Bioreactors & Fermentation Systems: Precise sparging gas monitoring for pharmaceutical and bio-process growth tanks.

Kofloc EX700 Mass Flowmeter

Product Note:

Description