SICCO V1775-02 Gas Feed Controller
| Brand | SICCO |
|---|---|
| Origin | Germany |
| Model | V1775-02 |
| Humidity Setpoint Range | 0–50 %rH |
| Temperature Setpoint Range | −20 to +60 °C |
| Display Range | 0.1–99 %rH, −30 to +70 °C |
| Humidity Accuracy | ±3 %rH |
| Temperature Accuracy | ±0.5 °C |
| Humidity Resolution | 0.1 %rH |
| Temperature Resolution | 0.1 °C |
| Gas Flow Rate Range | 2–10 L/min |
| Sensor Cable Length | 1.2 m |
| Weight | 1800 g |
Overview
The SICCO V1775-02 Gas Feed Controller is a precision-engineered environmental regulation system designed for inert atmosphere gloveboxes and controlled-atmosphere enclosures. It operates on a closed-loop feedback principle, integrating real-time relative humidity (rH) sensing with proportional gas flow modulation to maintain stable moisture conditions within the working chamber. The controller continuously monitors ambient humidity via an integrated capacitive rH/temperature sensor mounted inside the glovebox workspace. When measured humidity deviates by more than ±1 %rH from the user-defined setpoint, the unit initiates gas feed after a configurable 3-minute stabilization delay—ensuring transient fluctuations do not trigger unnecessary actuation. Once the target humidity is restored within tolerance, the controller automatically terminates gas delivery, minimizing purge gas consumption and preserving atmospheric integrity.
Key Features
- Integrated dual-parameter sensing: Simultaneous measurement of relative humidity (0.1–99 %rH) and temperature (−30 to +70 °C) with high long-term stability
- Electronically regulated mass flow control: Precise gas delivery in the 2–10 L/min range, compatible with nitrogen, argon, dry air, or custom gas mixtures
- Robust industrial-grade enclosure: IP54-rated housing suitable for laboratory and pilot-scale cleanroom environments
- Programmable setpoint hysteresis and response delay: Configurable 3-minute activation delay prevents short-cycling during minor environmental drifts
- Calibration traceability: Factory-calibrated against NIST-traceable reference standards; supports user verification using certified humidity generators
- Modular hardware architecture: Separated sensor head, flow module, and control unit enable flexible installation and serviceability
Sample Compatibility & Compliance
The V1775-02 is optimized for use with standard glovebox systems employing stainless steel or acrylic chambers and butyl/viton glove ports. It supports compatibility with common inert gases used in battery R&D, organometallic synthesis, and moisture-sensitive material handling. All electronic components comply with CE marking requirements under the EU Electromagnetic Compatibility Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. The humidity sensor conforms to ISO 16000-22 for indoor air quality monitoring instrumentation, and its calibration methodology aligns with ASTM E2654–21 for verification of hygrometric devices. For regulated environments, audit trails and configuration logs may be exported for GLP/GMP documentation upon integration with external data acquisition systems.
Software & Data Management
While the V1775-02 operates as a standalone analog-digital hybrid controller without embedded firmware or network connectivity, it provides analog output signals (0–10 V DC) for both humidity and temperature readings—enabling seamless integration into centralized SCADA or LabVIEW-based monitoring platforms. Optional RS-485 Modbus RTU interface modules (sold separately) allow remote parameter adjustment, event logging, and alarm status polling. All operational states—including active gas feed, sensor fault, and setpoint deviation—are indicated via front-panel LED status codes. Data recording requires external DAQ hardware; no onboard memory or USB export functionality is included, preserving electromagnetic noise immunity in sensitive analytical environments.
Applications
- Moisture control in lithium-ion battery electrode fabrication gloveboxes, where <20 ppm H₂O is critical for cathode slurry stability
- Atmospheric conditioning for gloveboxes used in Grignard reagent synthesis and air-sensitive catalyst handling
- Stabilization of relative humidity during long-duration stability testing of pharmaceutical intermediates under ICH Q1A conditions
- Supporting ISO 14644-1 Class 5 cleanroom glovebox operations requiring repeatable rH setpoints across multiple shifts
- Integration into automated material synthesis platforms where humidity-triggered gas purging coordinates with reactor temperature ramps
FAQ
Does the V1775-02 support automatic calibration or self-diagnostics?
No—the unit relies on factory calibration and does not include auto-zero or span-check routines. Periodic verification using traceable humidity standards is recommended every 12 months.
Can the controller regulate both humidified and dehumidified gas streams?
It is designed exclusively for dry gas injection to reduce humidity; it does not integrate humidification modules or desiccant regeneration cycles.
Is the 1.2 m sensor cable length extendable?
Yes—extension cables with shielded twisted-pair construction and identical impedance matching are available as optional accessories (part no. V1775-CBL-EXT), maintaining signal integrity up to 5 m total length.
What safety certifications apply to the power supply and gas interface?
The controller uses a SELV-compliant 24 V DC power adapter meeting IEC 62368-1; gas connections conform to DIN 2353 for metric compression fittings, rated for ≤10 bar working pressure.
How is compliance with FDA 21 CFR Part 11 addressed?
As a stand-alone hardware controller without electronic records or electronic signatures, the V1775-02 falls outside the scope of Part 11. However, when interfaced with validated third-party data systems, its analog outputs may contribute to compliant audit trails.
