Metrohm 772 Pump Unit - Manual (Page 30)

7.1 Peristaltic pump
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
22 ￭￭￭￭￭￭￭￭
772 Pump Unit
7 Technical specifications
7.1 Peristaltic pump
Direction of rota-
tion Clockwise
Rotational speed 160 - 250 rpm, at 20 V / 200 mA
Flow rate 400 - 600 mL/min
(depending on the supply voltage and the selection of pump tubing)
Pump tubings
Wall thickness 1.6 mm
Inner diameter 0.8 - 6.4 mm
Material Depending on the medium.
7.2 Power supply
Voltage 16 - 24 V DC
Power consump-
tion ≤ 550 mA
7.3 Interfaces and connectors
The 772 Pump Unit does not have any control interfaces. It is operated
and controlled via the power supply.
7.4 Safety specifications
This instrument fulfills the following electrical safety requirements:
CE designation in accordance with the EU directives:
￭ 2006/95/EC (Low Voltage Directive, LVD)
￭ 2004/108/EC (EMC Directive, EMC)
Design and testing ￭ EN/IEC/UL 61010-1
￭ CSA-C22.2 No. 61010-1
￭ Protection class III
￭ EN/IEC 60529
￭ Degree of protection IP20
Safety instructions This document contains safety instructions which have to be followed
by the user in order to ensure safe operation of the instrument.