Kofloc EX700 Mass Flowmeter

Description

In industrial zones classified as hazardous (Zone 1 or Zone 2), standard electronic flowmeters can act as potential ignition sources. The Kofloc EX700 is engineered with an “Intrinsically Safe” protection structure. It operates at ultra-low energy levels, ensuring that even in the event of a component failure, there is insufficient electrical or thermal energy to ignite an explosive atmosphere.

The EX700 consists of a high-purity thermal sensor housed in a robust, corrosion-resistant body. Because it measures the mass of the gas molecules directly, it eliminates the need for complex compensation calculations. The unit typically works in conjunction with a safety barrier located in a non-hazardous area, providing a stable analog output (such as 4–20mA) to your control system or PLC.

Brand

Kofloc

The natural environment is preserved through the balance of solids, liquids and gases that exist on the earth. However, human civilization has caused pollution that has greatly damaged our environment. The task of the present generation is to restore our environment to its natural healthy state. And this is also the greatest challenge for 21st century science and technology.

KOFLOC's corporate motto is "A Scientific Approach for Fluids." In other words, we create products that scientifically measure and control the balance of liquids and gases. We trust that through our work we are making a contribution to the regeneration of the environment and to the establishment of a prosperous society.

Features

Explosion-Proof Certification: Specifically designed and certified for hazardous locations.
Intrinsically Safe Design: Provides peace of mind when measuring flammable gases like Hydrogen, Methane, or Ethylene.
Direct Mass Flow Measurement: High-accuracy sensing that ignores temperature and pressure fluctuations.
Stainless Steel Construction: Wetted parts are made of SUS316 for maximum durability and chemical compatibility.
Fast Response: Rapidly detects changes in flow rate, essential for safety monitoring and process control.
High Reliability: No moving parts to wear out, ensuring long-term stability in harsh environments.

Specification

Feature	Specification
Detection Method	Thermal Mass Flow Sensing
Protection Structure	Intrinsically Safe (Ex ia IIB T4 or equivalent)
Accuracy	Within $pm$ 1.5% to $pm$ 2.0% Full Scale
Repeatability	Within $pm$ 0.5% Full Scale
Applicable Gases	$H_2$ , $CH_4$ , $C_2H_2$ , $O_2$ , $N_2$ , and other industrial gases
Wetted Materials	SUS316, Fluororesin, Viton (FKM)
Output Signal	4–20mA DC or 0–5V DC (via Safety Barrier)
Max Operating Pressure	0.5 MPa to 1.0 MPa (Model dependent)

Applications

The Kofloc EX700 Mass Flowmeter is the industry standard for:

Petrochemical Refineries: Monitoring gas streams in explosive processing zones.
Hydrogen Stations: Safely measuring $H_2$ flow for green energy infrastructure.
Chemical Manufacturing: Regulating feed gases in reactor rooms.
Fuel Cell R&D: Testing high-energy gas systems where safety is the top priority.
Offshore Platforms: Reliable gas measurement in salt-spray and hazardous environments.

Additional Information

Accessory:

Power supply adaptor: model PSK-85 (cable length, 1.8m)
Electrical cable: model CP-EX-700-※ (※Cable length: -1M, -3M, -5M). In case of the use at the place with strong noise influence, it is recommended to assemble the ferrite core with
the power supply adaptor.