VARIO® Sistema de vácuo com resistência química MD 4C EX VARIO +AK+EK
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MD 4C EX VARIO +AK+EK
VACUUBRAND20696937ca. 420 mmca. 365 mmca. 36 kgWith 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 CVC 3000 with system accessories (I/O-Module, supply / isolation amplifier) and ATEX vacuum sensor 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 system accessories are installed in a non-hazardous area.
Performance features
- full advantage of ATEX chemistry diaphragm pumps with separator AK and emission condenser EK
- 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 CVC 3000 (optional) for precise vacuum control and fully automatic processes
- complete system accessories I/O module, supply / isolation amplifier and ATEX vacuum sensor - from one source
Technical data
Conversor de unidades
| Technical data | Unit | MD 4C EX VARIO +AK+EK |
|---|---|---|
| Vacuum controller | without controller | |
| Number of heads / stages | 4 / 3 | |
| Max. pumping speed | m3/h | 3.7 |
| Max. pumping speed | cfm | 2.2 |
| Ultimate vacuum (abs.) | mbar/torr | 3 / 2.3 |
| Ultim. vac. (abs.) with gas ballast | mbar/torr | 10 / 7.5 |
| Integral leakage rate | mbar l/s | 0.1 |
| Ambient temperature range (operation) | °C | 10 - 40 |
| Ambient temperature range (storage) | °C | -10 - 60 |
| Max. media temperature | °C | 40 |
| Max. back pressure (abs.) | bar | 1.1 |
| Inlet connection | Small flange KF DN 25 | |
| Outlet connection | Hose nozzle DN 8-10 mm | |
| Coolant connection | 2 x hose nozzle DN 6-8 mm | |
| Rated motor power | kW | 0.25 |
| Max. operating current | A | 3.2 |
| Max. starting current | A | 150A / 2.5ms |
| Motor speed range | min-1 | 30 - 1500 |
| Degree of protection | IP 54 | |
| Dimensions (L x W x H), approx. | mm | 600 x 365 x 420 |
| Weight, approx. | kg | 36 |
| Noise level at 50 Hz, typ. | dBA | 42 |
| ATEX conformity | Pumping chamber (pumped gases): II 2G IIC T3 X Environment with inert purge gas: II 2G IIB T4 X Environment without inert purge gas: II 3G IIB T4 X Motor: II 2G Ex d IIB T4 Gb | |
| Items supplied | Pumping unit completely mounted with inlet separator and emission condenser, ready for use, with manual. Shatter and shock protection for glass parts are to be provided by the customer. 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. | |
| Accessories | PTFE tubing KF DN 25 (1000 mm: 20686033) Analog I/O module VACUU·BUS 4-20mA / 0-10V (20635425) Signal conditioner 0-10V/4-20mA (20635426) Power/input isolating amplifier 4-20mA (20635427) Vacuum sensor ATEX +-1 mbar 4-20mA (20635423) Vacuum sensor ATEX +-3 mbar 4-20mA (20635424) Vacuum controller CVC 3000 (20635028+20612090) VACUU·BUS® male plug with cable 2m (20612462) |
MD 4C EX VARIO +AK+EK - Pumping speed graph MD 4C EX VARIO +AK+EK - Pump down graph (100 l volume) |
MD 4C EX VARIO +AK+EK - Dimension sheet |
MD 4C EX VARIO +AK+EK - Configuration example |
-Technical data are subject to change without notice-
Ordering data
| Product name | Mains voltage and frequency | Plug | * Order no. |
|---|---|---|---|
| MD 4C EX VARIO +AK+EK | 230 V~ 50 Hz | Open wires | 20696937 |
* Com a introdução de nosso novo sistema de gestão ERP em 2018, nossos números do pedido será alargado a oito dígitos prefixados com os dígitos 2 e 20, respectivamente.
Product comparison
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | | |||||||||||||
Bomba de membrana com resistência química | - | 12 | 18 | 1.9 |  | | - | - | - | - | - | - | - | - |
Bomba de membrana com resistência química | - | 3 | 10 | 3.7 | | | - | - | - | - | - | - | - | - |
VARIO® bomba de membrana com resistência química | - | 3 | 10 | 3.7 | | | - | - | - | - | - | - | | - |
Bomba de membrana com resistência química | - | 2 | 10 | 8.1 | | | - | - | - | - | - | - | - | - |
+AK+EK | - | 2 | 10 | 8.1 | | | - | - | - | - | - | - | - | - |
Bomba de membrana com resistência químicaVARIO | - | 2 | 10 | 8.1 | | | - | - | - | - | - | - | | - |
Sistema de vácuo com resistência química+AK+EK | MZ 2C EX | 12 | 18 | 1.9 | | | - | | | - | - | - | - | - |
Sistema de vácuo com resistência química+AK+EK | MD 4C EX | 3 | 10 | 3.7 | | | - | | | - | - | - | - | - |
VARIO® Sistema de vácuo com resistência químicaVARIO +AK+EK | MD 4C EX VARIO | 3 | 10 | 3.7 | | | - | | | - | - | - | | - |
VARIO® bomba de vácuo com resistência químicaVARIO +AK+EK | MV 10C EX VARIO | 2 | 10 | 8.1 | | | - | | | - | - | - | | - |
