Vögtlin Instruments GCR Red-y Compact Mass Flow Regulator

The red-y compact series by Vögtlin consists of high-performance digital thermal mass flow meters and regulators engineered for the precise measurement and adjustment of industrial gas lines. Designed as an independent, highly flexible instrumentation solution, these devices feature a cutting-edge touch display with a position sensor for automatic view orientation, making them exceptionally easy to operate in tight physical spaces. Built for ultimate system portability and versatile panel configuration, the instruments can be powered via a standard AA battery, Micro-USB power supply, or a 24 VDC external line. To streamline complex process monitoring setups, the red-y compact leverages an innovative modular design with four application-specific expansion blocks—including battery, power supply, alarm, and analog/pulse output modules—allowing industrial engineers to customize digital gas routing architectures without installing standalone hardware units.

Key Product Features

  • High-Precision Thermal Technology: Delivers exceptional accuracy up to ±1% of full scale combined with a wide dynamic turndown ratio of 1 : 100 for reliable low and high-flow tracking.
  • Modular Application Extensions: Features four smart plug-and-play add-on modules to seamlessly inject customized battery power, external supply, alarm contacts, or active 4-20mA/pulse loops directly into the instrument base.
  • Integrated Precision Flow Control: Models can be equipped with a premium built-in manual needle valve featuring 15 turns to perform hyper-precise, granular adjustments of gas delivery lines.
  • Intuitive Multi-Gas Touch Interface: The vibrant touch screen offers rapid navigation across multiple pre-calibrated gas types, totalizer metrics, and device diagnostics, and automatically rotates using an internal orientation sensor.
  • Robust Industrial Fortification: Engineered with a premium CMOS sensor chip directly embedded in the gas path, housed within a compact profile, and backed by comprehensive international support across a global flow sales and service network.
Technical Specifications
● POWER SECTION
Power Supply OptionsInternal: 1x Regular AA battery (Alkaline, 1.5V)
External: Micro-USB power supply (5 VDC, ±10%) or Modular 24 VDC power block
Battery LifetimeStandby: Approx. 6 months
Continuous Operation: Up to 2 years (depending on display eco-mode settings)
Modular Extensions4 hot-swappable add-on blocks: Battery module, Power supply module, Alarm module, Analog/pulse output module
● INPUT SECTION
Measurement PrincipleThermal mass flow measurement using a high-stability CMOS semiconductor chip sensor.
Calibrated Gas MediaAir (AIR), Nitrogen (N2), Oxygen (O2), Argon (Ar), Carbon Dioxide (CO2).
Multi-gas capability with up to 3 pre-programmed gas curves selectable via touch screen.
Flow Adjustment RangeIntegrated manual needle valve with a 15-turn mechanical travel range for fine positioning control.
● OUTPUT SECTION
Signal Interface OptionsAvailable via specialized add-on extension modules:
Analog Signal Loop: Isolated 4-20mA or 0-20mA current loop output.
Pulse Signal Output: Scalable digital pulse or frequency channel module.
Alarm Switching: 2 independent SPDT mechanical relay alarm contacts.
Local Display OutputVibrant LCD touch screen providing real-time flow rate, accumulative totalizer values, current gas type, units, and system settings.
● PERFORMANCE
Measurement AccuracyEco: ± 2.0% of full scale; ranges > 200 ln/min ± 3.0% of full scale
Eco plus: ± 2.0% of full scale; ranges > 200 ln/min ± 3.0% of full scale
Special: ± 1.0% of full scale up to 50 ln/min
Repeatability±0.2% of full scale value.
Turndown RatioStandard dynamic turndown capability of 1 : 100.
Response TimeSensor response time: 15ms | Total instrument system response: ≤ 300ms.
Display OrientationIntegrated gravity position sensor for automatic 180° screen flip rotation.
● PHYSICAL
Mounting OrientationHorizontal or vertical orientation layout without accuracy degradation.
Process ConnectionsStandard G1/4″ thread or 1/4″ compression fittings (Swagelok compatible).
Manual Orifice SizesNS 1.0L (Ultra-low flow) | NS 1.0 | NS 1.5 | NS 2.0 | NS 2.5 | NS 3.0 | NS 3.5 | NS 4.0 | NS 6.5
● MATERIAL
Flow Body BlockAnodized Aluminium or High-grade Stainless Steel (316L).
Internal Seals / O-RingsFKM (Viton) Standard | EPDM or FFKM (Kalrez) option configurations.
Core CMOS SensorSilicon semiconductor mass flow chip with integrated protective top layers.
● STANDARDS CONFORMITY
Environmental LimitsOperating Temperature Range: 0 to +50°C
Operating Pressure Limits: Maximum 10 bar (Aluminium) | Maximum 16 bar (Stainless Steel)
Global Network BaselineSupported by Vögtlin Instruments GmbH (Switzerland) and global alliance networks including the TASI Flow network.

Download Vögtlin Instruments GCR Red-y Compact Mass Flow Regulator information here

Datasheet:Vogtlin_Red-y-Compact_Datasheet
Manual: Vogtlin-red-y-compact-manual

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