7.1 Pump/gas flow integrator (Art. No. 4803)

The FLOW INTEGRATOR allows a precise integration of the amount of gas, which has passed through the MASSFLOW gas controller.

The electric pulses, corresponding to 5 ml of gas (e.g. air, nitrogen, oxygen) for the MASSFLOW 5000 (and 0.5 ml for the MASSFLOW 500), are registered and using the RS-interface, the gas volume can be recorded on a PC (for example using the fermentation software FNet or SIAM or the pump control software PNet).

In processes where the gas flow is controlled e.g. by a pH-stat during a cell culture to keep the pH of the medium constant, it is often important to know when and how much acid (such as carbon dioxide) or base (nitrogen in cell cultures) was added. This data yields important information about the process, its kinetics, time of completion etc.

Another use of the INTEGRATOR is the measurement of enzyme activities (esterases, amidases, lactamases and other enzymes).

The PUMP/GAS-FLOW INTEGRATOR can now be electronically implemented inside the MASSFLOW gas flow regulator and, therefore, does not require any additional valuable laboratory bench space.


7.2 PNet control software for peristaltic and syringe pumps, DOSER or MASSFLOW (Art. No. 6600)

PNet is a PC control software for the remote control of LAMBDA laboratory instruments (peristaltic pumps PRECIFLOW, MULTIFLOW, HIFLOW, MAXIFLOW, syringe pump VIT-FIT, powder dosing instrument DOSER and gas flow controller MASSFLOW).

The pumps are connected to the computer through a RS-232 or RS-485 interface. Up to 6 LAMBDA laboratory instruments and 12 INTEGRATORs can be connected and controlled simultaneously.


7.3 List of accessories and spare parts


Art. No.Accessories
4810Pump remote control (analog and digital) cable, 8 poles
4802Pump ON/OFF remote control cable, 2 poles (open ends)
4824Cable for inverted analog ON/OFF control, 8 poles

Interface and Control software
4822RS232 interface (for connection of the instruments to the serial port)
4816RS485 interface (for connection of the instruments to the serial port)
4817RS232/485 converter
4818Power supply for RS232/485 converter (5V/1W)
4819RS-line connection cable (serial)
6600PNet control software for peristaltic and syringe pumps, DOSER or MASSFLOW
800202Quadruple plug box (Power and RS-connection for up to 4 LAMBDA laboratory instruments)

Spare parts
4821Plug-in power supply (12V/24W) for PRECIFLOW, MULTIFLOW, DOSER, MASSFLOW
4815Silicone tubing 3/5mm x 10m
800113Stainless steel tubing clamp