vacuubrand MD 4C NT VARIO User Manual

129 pages

To Next Page

page 1 of 129

Chemistry diaphragm pumps

Chemistry vacuum systems

Chemistry pumping units

Instructions for use

Technology for Vacuum Systems

ME 4C NT VARIO

MZ 2C NT VARIO

MD 4C NT VARIO

MV 10C VARIO-B

MD 12C VARIO-B

PC 3002 VARIO

PC 3003 VARIO

PC 3004 VARIO

PC 3010 VARIO

PC 3012 VARIO

Part I of II

Part I

Part I:

Safety information - Technical data -

Use and operation

Part I1
Reset / Language Selection8
- Table of Contents9
Safety Information11
- Important Information11
- General Information13
- Intended Use13
- Setting up and Installing the Equipment14
- Ambient Conditions17
- Operating Conditions17
- Safety During Operation19
- Maintenance and Repair22
  - Important Information: Equipment Marking (ATEX)24
Technical Data26
- General Technical Data Valid for All Pumps/Pumping Units26
Use and Operation38
- Installing a Pump in a Vacuum System38
- During Operation44
- Important Notes Regarding the Use of Gas Ballast45
- Important Notes Concerning the Operation of the Exhaust Waste Vapor Condenser46
- Shutdown & Storage48
- Vacuum Controller CVC 300050
Menu Guide55
Pump down Function57
Vac Control Function59
Auto Mode62
Program Function64
- Application Example66
VACUULAN Function67
Application Examples69
- Vacuum for Filtration and Suction69
- Vacuum for Gel Dryer, Drying Chambers and Vacuum Concentrators70
- Vacuum for Distillation and Evaporation (E.g., Rotary Evaporator)70
- Fore-Vacuum for High Vacuum Pumps72
- Vacuum for Distillation and Evaporation (E.g., Rotary Evaporator) 70 Fore-Vacuum for High Vacuum Pumps72
Configuration73
Part II75
Readjustment of CVC 300078
Calibration in the Factory80
Cleaning the Pressure Transducer81
Interface Parameters82
- Setting of the Interface83
- Read Commands "CVC 200084
- Write Commands "CVC 200085
- Read Commands "CVC 300087
- Write Commands "CVC 300089
Accessories92
Troubleshooting95
Replacing Diaphragms and Valves99
- Cleaning and Inspecting the Pump Heads (Pumps NT VARIO / PC 300X VARIO)100
- Replacing the Diaphragm105
- Replacing the Valves107
- Cleaning and Inspecting the Pump Heads (Pumps VARIO-B / PC 301X VARIO)111
- Replacing the Diaphragm115
- Assembling the Pump Heads116
- Replacing the Valve at the Distributor (Outlet Side)117
- Assembling the Connecting Hoses118
- Replacing the Device Fuse121
Notes on Return to the Factory122
Warranty125
Health and Safety Clearance Form126
EC Declaration of Conformity of the Machinery127

Questions and Answers:

M
Mark GomezAug 25, 2025
What to do if VACUUBRAND Laboratory Equipment pump does not start?
- B
  Billy StoutAug 26, 2025
  If your VACUUBRAND Laboratory Equipment pump doesn't start or stops immediately, and the warning triangle and pump symbol are flashing, it might be due to a few reasons. If the pump has been exposed to condensate, allow it to run for a few minutes at maximum speed with atmospheric pressure at the inlet. Check for overpressure in the outlet line by removing any blockage or opening the valve. If the motor is overloaded, allow it to cool down, identify, and eliminate the cause of failure, then manually reset it by switching off the pump or unplugging it.
T
Timothy HamptonAug 25, 2025
Why doesn't my VACUUBRAND Laboratory Equipment pump achieve ultimate vacuum?
- P
  Patricia YoderAug 25, 2025
  If your VACUUBRAND pump isn't reaching its ultimate vacuum or usual pumping speed, check the centring ring at the small flange connection for correct positioning and inspect the pipeline and vacuum system for leaks. Ensure the controller setting is correct by selecting the ''Pump down'' function with the speed set to ''HI''. Use vacuum lines with a larger diameter and keep them as short as possible. If the pump has been exposed to condensate, allow it to run for a few minutes with atmospheric pressure at the inlet to purge. Clean and inspect the pump heads for deposits. Replace diaphragms and/or valves if they are damaged. Check process parameters for outgassing substances or vapor generation.

vacuubrand MD 4C NT VARIO Specifications

General

Type	Rotary Vane Pump
Max. back pressure (absolute)	1.1 bar
Voltage	230 V
Connection	Plug
Noise Level	50 dB(A)
Noise level at 50 Hz	49 dB(A)
Frequency	50 Hz
Material	Aluminium