Laboratory vacuum pump PC 520 select

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Overview

• VACUU·SELECT vacuum controller with graphical user interface simplifies laboratory workflows
• Predefined application processes save time and provide reproducible results
• Easy-to-use application editor for creating custom process sequences
• Oil-free two-stage chemistry diaphragm pump (based on MZ 2C NT) with chemical and condensate compatibility
• Simultaneous operation of two independent electronically controlled vacuum applications

Description
This chemistry vacuum pumping unit is a compact, cost‑effective solution for running two electronically controlled vacuum applications in parallel with a single pump. The unit is based on the MZ 2C NT two-stage chemistry diaphragm pump and is intended for medium‑duty laboratory vacuum tasks with common solvents. Each vacuum port has an independent solenoid valve for electronic vacuum control and check valves to prevent cross‑contamination. The VACUU·SELECT controller provides an intuitive, application‑based GUI with predefined vacuum processes, manual set‑point control, distillation modes and a drag‑and‑drop application editor to create custom sequences. For solvent evaporation the system detects boiling pressure and switches to two‑point control to stabilise pressure during boiling. The inlet separator (glass with protective coating) prevents particles and liquid droplets from entering the pump. The exhaust vapor condenser enables near‑complete solvent recovery when used with an appropriate chilled water line or chiller.

Technical data and graphs
Max. pumping speed 50 Hz: 2 m3/h
Max. pumping speed 60 Hz: 1.4 cfm
Ultimate vacuum: 7 mbar / 5 torr
Ultimate vacuum with gas ballast: 12 mbar / 9 torr
Number of heads: 2
Number of stages: 2
Vacuum controller: VACUU·SELECT
Lower ambient temperature (operation): 10 °C
Upper ambient temperature (operation): 40 °C
Lower ambient temperature (storage): -10 °C
Upper ambient temperature (storage): 60 °C
Max. back pressure (abs.): 1.1 bar
Inlet connection: 2 x hose nozzle DN 8-10 mm
Outlet connection: Hose nozzle DN 8-10 mm
Coolant connection: 2 x hose nozzle DN 6-8 mm
Rated motor power: 0.18 kW
Rated motor speed at 50/60 Hz: 1500/1800 min-1
Protection class IEC 60529: IP 20
Dimensions (L x W x H): 435 mm x 272 mm x 457 mm
Weight: 19.6 kg
Noise (sound pressure level) at 50 Hz: 45 dBA
ATEX conformity: II 3/- G Ex h IIC T3 Gc X (Internal Atmosphere only)
Items supplied: Pumping unit completely mounted, ready for use, with manual
Rated mains voltage range: 230 V
Mains frequency: 50-60 Hz
Interface: Ethernet (RJ45): Modbus TCP / USB (Type A): Data transfer, software update / RS-232 (additional adapter required)

Characteristics / specifications

• Model: PC 520 select
• Pumping principle: Two-stage chemistry diaphragm pump (based on MZ 2C NT)
• Pumping speed (50 Hz): 2 m3/h
• Ultimate vacuum: 7 mbar (5 torr)
• Ultimate vacuum with gas ballast: 12 mbar (9 torr)
• Number of heads/stages: 2 / 2
• Controller: VACUU·SELECT with graphical UI, predefined processes and application editor
• Simultaneous operation: Two independent electronically controlled vacuum applications
• Inlet separator: Glass with protective coating to prevent particles/liquid ingress
• Exhaust vapor condenser: For solvent recovery when used with appropriate cooling
• Connections: Inlet 2x DN 8-10 mm; Outlet DN 8-10 mm; Coolant 2x DN 6-8 mm
• Motor power: 0.18 kW, speed 1500/1800 min-1 (50/60 Hz)
• Protection class: IP 20
• Dimensions/Weight: 435 x 272 x 457 mm / 19.6 kg
• Noise level: 45 dBA (50 Hz)
• Supply voltage: 230 V, 50-60 Hz