Laboratory vacuum pump MZ 2C VARIO select

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Overview

• VACUU·SELECT vacuum controller with graphical user interface and predefined applications simplifies laboratory vacuum processes
• Automatic boiling point detection and vacuum adjustment for shorter process times
• Extended diaphragm lifetime for reduced operating and maintenance costs
• Chemically resistant, oil-free diaphragm technology suitable for common solvents

Short description
The MZ 2C VARIO select is a chemical diaphragm pump for laboratory solvent handling and general vacuum tasks. It combines a VARIO on‑demand motor control with the integrated VACUU·SELECT controller for application‑based operation. Users can run manual set‑point control for simple tasks, execute fully automated distillations, or create and edit custom applications via the graphical interface. During solvent evaporation the controller detects the boiling pressure and automatically adapts the vacuum to maintain process control and shorten cycle times.

Key product data

• Ultimate vacuum (no gas ballast): 7 mbar (5 torr)
• Ultimate vacuum with gas ballast: 12 mbar (9 torr)
• Max. pumping speed (50 Hz): 2.8 m³/h
• Max. pumping speed (60 Hz): 1.65 cfm
• Number of heads: 2
• Number of stages: 2
• Vacuum controller: VACUU·SELECT (graphical UI, predefined applications)
• Inlet / outlet connection: Hose nozzle DN 8–10 mm
• Rated motor power: 0.53 kW
• Rated mains voltage range: 200–230 V, 50–60 Hz
• Protection class (IEC 60529): IP 20
• Max. back pressure (abs.): 1.1 bar
• Operating ambient temperature: 10 °C to 40 °C
• Storage temperature: -10 °C to 60 °C
• Dimensions (L x W x H): 243 x 243 x 245 mm
• Weight: 14.3 kg
• Noise (50 Hz): 43 dBA (sound pressure)
• ATEX: II 3/- G Ex h IIC T3 Gc X (internal atmosphere only)
• NRTL certification: No
• Items supplied: Pump assembled and ready for use, with manual

Features & operation

• VACUU·SELECT controller: graphical UI, predefined applications, manual setpoint control, automated distillations, application editing
• Automatic boiling point detection for solvent evaporation and automatic vacuum adjustment
• On‑demand motor speed control for optimized process control and extended diaphragm/valve life
• Oil‑free, chemically resistant diaphragm technology for use with common laboratory solvents
• Interfaces: Ethernet (RJ45) Modbus TCP, USB (Type A) for data transfer and software update, RS‑232 (adapter required)

Technical data (excerpt)

• Max. pumping speed 50 Hz: 2.8 m³/h
• Max. pumping speed 60 Hz: 1.65 cfm
• Ultimate vacuum: 7 mbar / 5 torr
• Ultimate vacuum with gas ballast: 12 mbar / 9 torr
• Heads / stages: 2 / 2
• Rated motor power: 0.53 kW
• Supply voltage: 200–230 V, 50–60 Hz
• Max. back pressure (abs.): 1.1 bar
• Protection class: IP 20
• Dimensions: 243 x 243 x 245 mm
• Weight: 14.3 kg
• Noise level (50 Hz): 43 dBA