MD 4C EX VARIOVARIO® chemistry diaphragm pump
Overview
- full advantage of ATEX chemistry diaphragm pumps
- VARIO®: short process times due to hysteresis-free VARIO® vacuum control
- VARIO®: VARIO®-pump operates on demand only as fast as necessary – minimal power consumption, extended maintenance intervals, silent operation
- VARIO®: vacuum controller VACUU·SELECT (optional) for precise vacuum control and fully automatic processes
- ATEX vacuum sensor and Connection Box 100 for easy installation – from one source
Ultimate vacuum
3 mbar
Ultimate vacuum with gas ballast
10 mbar
Max. pumping speed 50 Hz
3.7 m3/h
VARIO® chemistry diaphragm pump in action
With the new ATEX VARIO® chemistry diaphragm pumps and vacuum systems, the vacuum can be precisely controlled by the motor speed. The VARIO® pump is driven by an additional control signal line. The optional vacuum controller VACUU·SELECT with ATEX vacuum sensor and Connection Box 100 enable fully automatic evaporations without the need for parameter settings or user programming. With the adaptive control it finds the boiling pressure independently and adjusts the vacuum continuously and optimally according to the vapor pressure. The vacuum controller and the Connection Box 100 are installed in a non-hazardous area.
Technical data and graphs
| Max. pumping speed 50 Hz | 3.7 m3/h | Select diagram |
| Ultimate vacuum | 3 mbar / 2.3 torr | |
| Ultimate vacuum with gas ballast | 10 mbar / 7.5 torr | |
| Number of heads | 4 | |
| Number of stages | 3 | |
| Vacuum controller | without controller | |
| 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 | small flange KF DN 25 | |
| Outlet connection | small flange KF DN 16 | |
| Rated motor power | 0.25 kW | |
| Minimum motor speed VARIO in min-1 | 30 min-1 | |
| Maximum motor speed VARIO in min-1 | 1500 min-1 | |
| Rated motor speed at 50/60 Hz | 1500 min-1 | |
| Protection class IEC 60529 | IP 54 | |
| Dimension L in mm | 469 mm | |
| Dimension B in mm | 265 mm | |
| Dimension H in mm | 305 mm | |
| Weight | 28 kg | |
| Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) | 42 dBA | |
| ATEX conformity | Pumping chamber (pumped gases): II 2G Ex h IIC T3 Gb X, Environment with inert purge gas: II 2G Ex h IIB T4 Gb X, Environment without inert purge gas: II 3G Ex h IIB T4 Gc X, Motor: II 2G Ex db IIB T4 Gb | |
| NRTL certification | No | |
| Items supplied | Pump completely mounted, ready for use, with manual. Speed control via 4-20 mA current loop (4 mA = 0 rpm, 20mA = 1500 rpm). Control signal and mains cable length 10 m, without plugs. | |
| Rated mains voltage range 1 | 230 V | |
| Mains frequency 1 | 50 Hz |
Downloads
Equipment
-
![Connection Box 100,Connection box for simplified installation and control ofATEX VARIO chemistry diaphragm pumps withvacuum controller (VACUU·SELECT or CVC 3000) andone vacuum sensor (both are available separately)]()
Connection Box 100 Connection box for ATEX VARIO pumps- Surface-mounted insulated housing
- Pre-wired
![ATEX Vacuum gauge head DMP 331i, BDSENSORS,with KF DN 16,measuring range: 1000-1 mbar, accuracy +-1 mbar,with ATEX approval: II 1G Ex ia IIC T4 Gaoutput signal 4 - 20 mA, for operationwith EX i - power / input isolating]()
DMP 331i KF DN 16 Vacuum sensor- With ATEX-certification II 1G Ex ia IIC T4 GA
- Measuring range 1000-1 mbar
- Accuracy: +-1 mbar
![ATEX Vacuum gauge head CERABAR PMP21,Endress+Hauser, with KF DN 16,measuring range: 1000-1 mbaraccuracy: better than +-3 mbar,with ATEX approval: II 2G Ex ia IIC T4 Gboutput signal 4 - 20 mA, for operationwith Ex i - p]()
Cerabar PMP21 KF DN 16 Vacuum sensor- With ATEX certification: II 2G Ex ia IIC T4 Gb
- Measuring range 1000-1 mbar
- Accuracy: better than +-3 mbar
![PTFE tubing antistatic, KF DN 16/1000 mm]()
KF DN 16, 1000 mm PTFE-tubing (antistatic) with small flanges- PTFE (antistatic) / stainless steel
- Nominal width KF DN 16 mm | length 1000 mm
- Leak rate 1 x 10-4 mbar l/s
![PTFE tubing antistatic, KF DN 25/1000 mm]()
KF DN 25, 1000 mm PTFE-tubing (antistatic) with small flanges- PTFE (antistatic) / stainless steel
- Nominal width KF DN 25 mm | length 1000 mm
- Leak rate 1 x 10-4 mbar l/s
![analog-I/O-module 4-20mA/0-10V VACUU·BUS,interface for vacuum controller to ATEX-VARIO pump andEX-vacuum sensors, with 2 m VACUU·BUS cable]()
VACUU·BUS® Analog-I/O-Module IN 4-20mA/OUT 0-10V VACUU·BUS®- Analog interface
- Colored LED status display
![VACUU·BUS cable 2 m,with male plug and with litz wires]()
VACUU·BUS® VACUU·BUS cable 2 m with male plug and with litz wires- VACUU·BUS® Accessory
- With male plug and litz wires
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VARIO® chemistry diaphragm pump in action
With the new ATEX VARIO® chemistry diaphragm pumps and vacuum systems, the vacuum can be precisely controlled by the motor speed. The VARIO® pump is driven by an additional control signal line. The optional vacuum controller VACUU·SELECT with ATEX vacuum sensor and Connection Box 100 enable fully automatic evaporations without the need for parameter settings or user programming. With the adaptive control it finds the boiling pressure independently and adjusts the vacuum continuously and optimally according to the vapor pressure. The vacuum controller and the Connection Box 100 are installed in a non-hazardous area.
Technical data and graphs
Max. pumping speed 50 Hz 3.7 m3/h Select diagram Ultimate vacuum 3 mbar / 2.3 torr Ultimate vacuum with gas ballast 10 mbar / 7.5 torr Number of heads 4 Number of stages 3 Vacuum controller without controller 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 small flange KF DN 25 Outlet connection small flange KF DN 16 Rated motor power 0.25 kW Minimum motor speed VARIO in min-1 30 min-1 Maximum motor speed VARIO in min-1 1500 min-1 Rated motor speed at 50/60 Hz 1500 min-1 Protection class IEC 60529 IP 54 Dimension L in mm 469 mm Dimension B in mm 265 mm Dimension H in mm 305 mm Weight 28 kg Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®) 42 dBA ATEX conformity Pumping chamber (pumped gases): II 2G Ex h IIC T3 Gb X, Environment with inert purge gas: II 2G Ex h IIB T4 Gb X, Environment without inert purge gas: II 3G Ex h IIB T4 Gc X, Motor: II 2G Ex db IIB T4 Gb NRTL certification No Items supplied Pump completely mounted, ready for use, with manual. Speed control via 4-20 mA current loop (4 mA = 0 rpm, 20mA = 1500 rpm). Control signal and mains cable length 10 m, without plugs. Rated mains voltage range 1 230 V Mains frequency 1 50 Hz 
für Zoom klicken
Max. pumping speed 50 Hz
für Zoom klicken
Pump down graph 50 Hz (100 l volume)
Downloads
Chemistry diaphragm pump MD 4C EX VARIOthree stage, 230 V / 50 Hzwith ATEX approval:pumping chamber (pumped gases):II 2G Ex h IIC T3 Gb Xenvironment (without inert purge gas):II 3G Ex h IIB T4 Gc Xenvironment (with iMD 4C EX VARIO VARIO® chemistry diaphragm pumpEquipment
-
![Connection Box 100,Connection box for simplified installation and control ofATEX VARIO chemistry diaphragm pumps withvacuum controller (VACUU·SELECT or CVC 3000) andone vacuum sensor (both are available separately)]()
Connection Box 100 Connection box for ATEX VARIO pumps- Surface-mounted insulated housing
- Pre-wired
![ATEX Vacuum gauge head DMP 331i, BDSENSORS,with KF DN 16,measuring range: 1000-1 mbar, accuracy +-1 mbar,with ATEX approval: II 1G Ex ia IIC T4 Gaoutput signal 4 - 20 mA, for operationwith EX i - power / input isolating]()
DMP 331i KF DN 16 Vacuum sensor- With ATEX-certification II 1G Ex ia IIC T4 GA
- Measuring range 1000-1 mbar
- Accuracy: +-1 mbar
![ATEX Vacuum gauge head CERABAR PMP21,Endress+Hauser, with KF DN 16,measuring range: 1000-1 mbaraccuracy: better than +-3 mbar,with ATEX approval: II 2G Ex ia IIC T4 Gboutput signal 4 - 20 mA, for operationwith Ex i - p]()
Cerabar PMP21 KF DN 16 Vacuum sensor- With ATEX certification: II 2G Ex ia IIC T4 Gb
- Measuring range 1000-1 mbar
- Accuracy: better than +-3 mbar
![PTFE tubing antistatic, KF DN 16/1000 mm]()
KF DN 16, 1000 mm PTFE-tubing (antistatic) with small flanges- PTFE (antistatic) / stainless steel
- Nominal width KF DN 16 mm | length 1000 mm
- Leak rate 1 x 10-4 mbar l/s
![PTFE tubing antistatic, KF DN 25/1000 mm]()
KF DN 25, 1000 mm PTFE-tubing (antistatic) with small flanges- PTFE (antistatic) / stainless steel
- Nominal width KF DN 25 mm | length 1000 mm
- Leak rate 1 x 10-4 mbar l/s
![analog-I/O-module 4-20mA/0-10V VACUU·BUS,interface for vacuum controller to ATEX-VARIO pump andEX-vacuum sensors, with 2 m VACUU·BUS cable]()
VACUU·BUS® Analog-I/O-Module IN 4-20mA/OUT 0-10V VACUU·BUS®- Analog interface
- Colored LED status display
![VACUU·BUS cable 2 m,with male plug and with litz wires]()
VACUU·BUS® VACUU·BUS cable 2 m with male plug and with litz wires- VACUU·BUS® Accessory
- With male plug and litz wires
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