LabTech VC1000 Digital Vacuum Controller
| Brand | LabTech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | VC1000 |
| Pricing | Upon Request |
| Display | 2.5-inch LCD |
| Control Range | 2 mbar to atmospheric pressure (1013 mbar) |
| Control Accuracy | ±1 mbar (±0.1 kPa) |
| Control Modes | 5-step programmable vacuum gradient |
| Pump Control | Automatic on/off sequencing |
| Tubing Material | Chemically resistant (perfluoroalkoxy PFA and fluorinated elastomer seals) |
Overview
The LabTech VC1000 Digital Vacuum Controller is an engineered solution for precise, repeatable vacuum regulation in laboratory-scale evaporation, concentration, distillation, and drying applications. It operates on closed-loop feedback control using a built-in piezoresistive pressure transducer calibrated against NIST-traceable references. The controller continuously monitors system pressure and dynamically modulates vacuum pump output—either via variable-speed drive interface or relay-based on/off switching—to maintain setpoint stability within ±1 mbar across its full operating range (2–1013 mbar). This level of control eliminates manual valve adjustment, reduces operator dependency, and ensures consistent process conditions critical for method transfer and regulatory compliance in GLP- and GMP-aligned environments.
Key Features
- Precision digital pressure regulation with real-time feedback loop architecture
- 2.5-inch high-contrast monochrome LCD display with backlight for clear parameter visibility under varied lab lighting
- Five-stage programmable vacuum gradient: users define time-stamped pressure setpoints to execute multi-phase protocols (e.g., gentle initial degassing → rapid bulk removal → final low-pressure drying)
- Integrated pump management logic: automatic start/stop sequencing based on pressure thresholds and dwell times, reducing mechanical wear and energy consumption
- Chemically inert fluid path: all wetted components constructed from PFA tubing and FFKM or FKM elastomer seals, compatible with aggressive solvents (e.g., chlorinated hydrocarbons, strong acids, and bases) and volatile organic compounds
- RS-232 communication port for external logging and integration with LIMS or SCADA systems (ASCII protocol, configurable baud rate)
Sample Compatibility & Compliance
The VC1000 is designed for use with rotary evaporators, centrifugal concentrators, freeze dryers, and vacuum ovens across food safety testing, pharmaceutical stability studies, environmental residue analysis (e.g., EPA Method 3550C), and semiconductor wafer cleaning workflows. Its pressure control fidelity supports USP <621> and ASTM E2047-22 requirements for reproducible solvent removal in reference standard preparation. The device meets IEC 61010-1:2010 safety standards for laboratory electrical equipment and carries CE marking per the EU Low Voltage Directive. While not intrinsically rated for hazardous locations, its corrosion-resistant construction enables safe operation in fume hoods handling Class II and III solvents per NFPA 30.
Software & Data Management
The VC1000 operates as a standalone instrument with no proprietary software dependency. All configuration—including gradient steps, dwell durations, pump delay timers, and alarm thresholds—is performed locally via membrane keypad navigation. Pressure data is not stored internally but can be streamed in real time via RS-232 to third-party acquisition platforms (e.g., LabVIEW, Python-based logging scripts, or ELN systems). Audit trail functionality is implemented at the host system level; when integrated into validated environments, timestamped pressure logs may be archived with electronic signatures per FDA 21 CFR Part 11 requirements if paired with compliant data capture infrastructure.
Applications
- Controlled-rate solvent evaporation in pesticide residue analysis (AOAC 2007.01, EN 15662)
- Gentle concentration of thermolabile biomolecules (peptides, oligonucleotides) without denaturation or oxidation
- Reproducible vacuum drying of hygroscopic reference materials prior to gravimetric calibration
- Staged degassing of polymer solutions prior to thin-film casting in materials R&D
- Automated vacuum hold during lyophilization cycle development for biopharmaceutical formulations
FAQ
What vacuum pumps are compatible with the VC1000?
The controller supports both diaphragm and oil-sealed rotary vane pumps with standard 1/4″ or 3/8″ hose barb connections. For optimal performance, LabTech recommends pairing it with pumps delivering ≥1.5 m³/h free air displacement and ultimate vacuum ≤0.5 mbar.
Does the VC1000 support analog output for PLC integration?
No—only RS-232 serial output is provided. Analog 0–10 V or 4–20 mA interfaces are not available on this model.
Can the gradient program be edited during runtime?
Yes—users may pause execution, modify active step parameters (setpoint, duration), and resume without resetting the entire sequence.
Is calibration traceable to national standards?
The internal pressure sensor is factory-calibrated using a Fluke 754 Documenting Process Calibrator referenced to NIST-traceable primary standards. A calibration certificate is supplied with each unit.
What maintenance intervals are recommended?
Inspect PFA tubing and O-rings every 6 months or after 500 operational hours; replace if discoloration, cracking, or swelling is observed. No routine sensor recalibration is required within the first two years of service.
