Vacuubrand CVC 3000 Vacuum Controller

Overview

The Vacuubrand CVC 3000 Vacuum Controller is an intelligent, microprocessor-based process regulation system engineered for precise, repeatable vacuum control in analytical, preparative, and industrial laboratory environments. Unlike simple on/off vacuum switches, the CVC 3000 implements closed-loop feedback control by continuously monitoring absolute pressure via its integrated ceramic capacitive sensor and dynamically modulating connected vacuum actuators—including frequency-controlled vacuum pumps, vacuum isolation valves, venting valves, and refrigerant control valves. Its architecture supports real-time pressure stabilization across variable load conditions, enabling stable operation during solvent evaporation, freeze drying, distillation, degassing, and thin-film deposition processes where pressure drift must be minimized to preserve sample integrity or reaction kinetics.

Key Features

• Integrated high-stability ceramic capacitive pressure sensor with 0.1–1080 mbar native range and <0.5% full-scale repeatability
• Expandable measurement capability via external VSP 3000 sensor support, extending operational range to 1 × 10⁻³ mbar (high vacuum) up to 1 × 10³ mbar (rough vacuum)
• Programmable multi-step vacuum profiles with user-defined setpoints, ramp rates, hold times, and conditional logic (e.g., trigger venting upon reaching target pressure)
• Rotary encoder interface with intuitive menu navigation—designed for glove-compatible operation and rapid parameter adjustment without touchscreen dependency
• RS-232C serial port compliant with standard ASCII command protocol for integration into LIMS, SCADA, or custom LabVIEW/Python automation frameworks
• VACUU•BUS™ digital bus compatibility: automatic plug-and-play recognition of VACUUBRAND VARIO, PC, or RC series frequency-controlled pumps; VV, VP, and VE series valves; and VSP, VLS, and Peltronic™ sensors
• Onboard vent valve with stainless-steel diaphragm actuator—eliminates need for external solenoid controllers and reduces system footprint

Sample Compatibility & Compliance

The CVC 3000 is chemically inert in standard configurations, featuring PTFE-sealed internal pathways and fluoropolymer-compatible wetted materials. It interfaces seamlessly with glass, stainless-steel, and borosilicate vacuum systems rated for ≤1 bar differential pressure. The controller meets IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emission) electromagnetic compatibility standards. Its firmware architecture supports audit-trail-capable operation when deployed under GLP or GMP environments—data logging timestamps, parameter changes, and event flags are recordable via RS-232C and may be mapped to 21 CFR Part 11-compliant software platforms through third-party middleware. No hazardous substances are used per RoHS Directive 2011/65/EU.

Software & Data Management

While the CVC 3000 operates autonomously via front-panel controls, its RS-232C interface enables bidirectional communication with host systems using ASCII-based command sets (e.g., “SET 150” to assign 150 mbar setpoint; “READ?” to poll current pressure). Raw sensor data (pressure in mbar, temperature in °C), status flags (pump running, valve open/closed, error codes), and profile execution logs can be streamed at configurable intervals (1–10 s). When paired with Vacuubrand’s optional VACUUBUS™-enabled software or third-party DAQ tools, users may generate time-stamped CSV reports, overlay pressure vs. time curves, and export configuration files for SOP replication across instruments. All firmware updates are delivered via serial upload and validated with CRC checksum verification.

Applications

• Controlled rotary evaporation—maintaining optimal pressure during solvent removal from heat-sensitive compounds (e.g., natural product isolates, pharmaceutical intermediates)
• Automated freeze-drying cycle management—coordinating condenser temperature, chamber pressure, and shelf heating ramps
• Inert atmosphere glovebox purging sequences with programmable pressure ramping and leak-check routines
• Vacuum-assisted filtration and membrane drying where consistent transmembrane pressure prevents filter clogging
• Calibration labs performing vacuum gauge intercomparisons using traceable reference sensors (e.g., VSP 3000 referenced to NIST-traceable barometers)
• Materials science workflows involving vacuum degassing of polymer precursors prior to casting or curing

FAQ

Does the CVC 3000 require external power for connected valves or pumps?
No—the CVC 3000 provides 24 V DC output for direct actuation of VACUUBRAND VV/VP-series valves and compatible frequency inverters. External power supplies are only needed for non-VACUU•BUS™ peripherals.
Can it log pressure data internally without a computer?
No—the CVC 3000 lacks onboard memory for data storage. Continuous logging requires an external host system connected via RS-232C.
Is the ceramic sensor replaceable by the user?
Yes—the integrated sensor module is field-replaceable using standard Torx tools and calibrated replacement parts (Order No. CVC-SEN-CERAMIC). Recalibration is recommended post-replacement.
What vacuum pump types are natively supported?
All VACUUBRAND frequency-controlled oil-free pumps (VARIO, PC, RC series) are auto-detected via VACUU•BUS™. Fixed-speed pumps may be controlled via relay output but lack closed-loop modulation capability.
Does it support analog output signals (e.g., 0–10 V or 4–20 mA)?
No—analog outputs are not provided. Process integration relies exclusively on digital RS-232C communication or VACUU•BUS™ bus signaling.