Shanghai Xiande GMVC-3000pro Intelligent Vacuum Controller
| Brand | Shanghai Xiande |
|---|---|
| Origin | Shanghai, China |
| Model | GMVC-3000pro |
| Control Range | 1–800 mmHg (Torr), 1–1066 hPa (mbar), 0–106.6 kPa, 0 to –0.01 MPa |
| Pressure Type | Negative (Vacuum) |
| Display | Digital Touchscreen (5.5″ Color LCD) |
| Ultimate Vacuum | 8 mbar |
| Max Pumping Speed | 20 or 30 L/min |
| Interface | Quick-Connect Ø10 mm |
| Power Supply | AC 220 V, 50 Hz |
| Rated Power | 130 W |
| Standby Power | 3 W |
| Noise Level | ≤55 dB(A) |
| Operating Temperature | 5–40 °C |
| IP Rating | IP20 |
| Dimensions (L×W×H) | 185 × 310 × 310 mm |
| Weight | 13 kg |
| Optional Steam Temperature Monitoring | –20 to 200 °C |
Overview
The Shanghai Xiande GMVC-3000pro Intelligent Vacuum Controller is an integrated vacuum management system engineered for precision-controlled solvent removal and inert atmosphere handling in laboratory-scale rotary evaporation, fractional distillation, and synthetic chemistry workflows. Unlike standalone vacuum gauges or basic solenoid controllers, the GMVC-3000pro combines a corrosion-resistant diaphragm vacuum pump with real-time closed-loop pressure regulation, enabling dynamic vacuum setpoint tracking across multi-stage evaporation protocols. Its control architecture operates on differential pressure feedback using a high-stability piezoresistive sensor calibrated against NIST-traceable references, delivering repeatable vacuum maintenance within ±1.5% of full scale across its operational range. Designed for compatibility with both domestic and international rotary evaporator platforms—including Buchi, IKA, Heidolph, and major Chinese OEMs—the system supports process-critical functions such as inert gas purging (N₂, Ar), gradient vacuum ramping, and automated pressure stabilization during heat-sensitive compound isolation.
Key Features
- Integrated corrosion-resistant PTFE-composite diaphragm pump (20 or 30 L/min nominal speed) with oil-free, maintenance-light operation suitable for acidic, alkaline, and halogenated vapors.
- 5.5-inch capacitive touchscreen interface with dual-language support (English/Chinese), intuitive graphical menu navigation, and real-time vacuum curve visualization.
- 10-segment programmable vacuum profile function: users define time–pressure sequences (e.g., ramp-down to 50 mbar over 3 min, hold at 25 mbar for 12 min, then step to 10 mbar) for reproducible multistep distillations.
- Dual-unit display and input: seamless switching between mbar, kPa, MPa, and Torr; configurable decimal resolution (0.1 or 1 unit) based on application sensitivity requirements.
- One-touch venting and pulse-mode release for rapid, operator-safe atmospheric re-equilibration without mechanical valve wear.
- USB 2.0 port for export of timestamped vacuum logs (CSV format), supporting audit-ready data retention compliant with GLP documentation practices.
- Optional integrated steam temperature probe input (–20 to 200 °C) enables synchronized thermal–vacuum process mapping—critical for boiling point correlation and bumping prevention.
Sample Compatibility & Compliance
The GMVC-3000pro is validated for use with volatile organic solvents (e.g., dichloromethane, ethanol, toluene, chloroform), low-boiling hydrocarbons, and reactive intermediates under controlled negative pressure. Its PTFE wetted-path construction ensures chemical resistance to concentrated acids (HCl, HNO₃), alkalis (NaOH, KOH), and oxidizing agents encountered in extraction and purification protocols. The system meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1). While not certified to ISO 9001 at the unit level, its firmware architecture supports 21 CFR Part 11–compliant audit trails when deployed with validated third-party data management software. All electrical components conform to IP20 ingress protection, appropriate for dry, non-hazardous laboratory environments per IEC 60529.
Software & Data Management
The embedded controller firmware provides local data logging at user-selectable intervals (1 s to 60 s), storing up to 30 days of continuous vacuum history in non-volatile memory. Exported CSV files include columns for timestamp (YYYY-MM-DD HH:MM:SS), measured pressure (mbar), setpoint (mbar), pump status (ON/OFF), and optional temperature (°C). No cloud connectivity or remote access is implemented—ensuring full data sovereignty and alignment with institutional IT security policies. For regulated environments, the system supports manual calibration verification via front-panel zero/span adjustment using certified reference manometers, with calibration events logged alongside operator ID and date/time stamps.
Applications
- Precision rotary evaporation of thermolabile natural products and pharmaceutical actives where over-evaporation or thermal decomposition must be avoided.
- Multi-solvent gradient distillation in combinatorial synthesis, enabling sequential removal of solvents with differing vapor pressures (e.g., hexane → ethyl acetate → methanol).
- Inert atmosphere processing during Grignard reactions, lithium–halogen exchange, or air-sensitive catalyst handling—leveraging nitrogen/argon purge cycles coordinated with vacuum hold steps.
- Lyophilization pre-conditioning and cold trap monitoring in hybrid drying systems requiring stable sub-atmospheric pressure control.
- Teaching laboratories requiring robust, entry-level vacuum instrumentation with transparent operation logic and failure-mode visibility (e.g., pump overload warning, sensor timeout alert).
FAQ
What vacuum sensors are used in the GMVC-3000pro?
The unit employs a factory-calibrated piezoresistive absolute pressure transducer with stainless steel diaphragm and ceramic substrate, optimized for long-term stability in aggressive vapor environments.
Can the GMVC-3000pro be connected to a PC for automated control?
It features USB host capability for data export only; no RS-232, Ethernet, or Modbus interfaces are provided. Full external automation requires integration via analog 0–10 V or 4–20 mA setpoint input (available on request with OEM configuration).
Is the pump serviceable in the field?
Yes—the diaphragm assembly and inlet filter are user-replaceable using standard Torx tools; replacement kits and torque specifications are included in the technical manual.
Does the system support automatic solvent trap defrosting cycles?
No—defrosting remains manual. However, the controller’s pressure-hold mode stabilizes vacuum during trap warming, minimizing process interruption.
What is the maximum allowable ambient temperature for continuous operation?
Continuous duty is rated up to 40 °C; above this, thermal derating reduces pump duty cycle and may trigger overtemperature shutdown at 50 °C internal chassis temperature.
