Metrohm 772 User Manual
772 Pump Unit
Manual
8.772.8001EN
Metrohm AG
CH-9100 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
772 Pump Unit
8.772.8001EN
Manual
07.2012 fpe
Teachware
Metrohm AG
CH-9100 Herisau
teachware@metrohm.com
This documentation is protected by copyright. All rights reserved.
Although all the information given in this documentation has been
checked with great care, errors cannot be entirely excluded. Should you
notice any mistakes please send us your comments using the address
given above.
Documentation in additional languages can be found on
http://documents.metrohm.com.
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Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.1.1 Model versions ........................................................................ 1
1.1.2 Connectors .............................................................................. 1
1.1.3 Intended use ........................................................................... 1
1.2 About the documentation ................................................... 2
1.2.1 Symbols and conventions ........................................................ 2
1.3 Safety instructions ................................................................ 3
1.3.1 General notes on safety ........................................................... 3
1.3.2 Electrical safety ........................................................................ 3
1.3.3 Tubing and capillary connections ............................................. 4
1.3.4 Flammable solvents and chemicals ........................................... 4
1.3.5 Recycling and disposal ............................................................. 4
2 Overview of the instrument 6
Table of contents
3 Installation 7
3.1 Setting up the instrument .................................................... 7
3.1.1 Packaging ................................................................................ 7
3.1.2 Checks .................................................................................... 7
3.1.3 Location .................................................................................. 7
3.2 Mounting the tubings .......................................................... 7
3.2.1 Mounting the pump tubing ..................................................... 7
3.2.2 Installing the inlet tubing and outlet tubing .............................. 9
3.3 Connecting the peristaltic pump ....................................... 10
3.3.1 Connection to a Sample Processor ......................................... 11
3.3.2 Connection to the 731 Relay Box .......................................... 11
4 Operation 14
5 Operation and maintenance 15
5.1 General notes ...................................................................... 15
5.1.1 Care ...................................................................................... 15
5.1.2 Maintenance by Metrohm Service .......................................... 15
5.2 Pump tubings ...................................................................... 16
5.2.1 Selecting the pump tubing ..................................................... 16
5.2.2 Suitability test for tubing materials ......................................... 17
5.2.3 Tubing dimensions ................................................................. 17
5.2.4 Tubing lifetime ...................................................................... 17
5.2.5 PharMed® pump tubing data sheet ....................................... 18
5.2.6 Viton® pump tubing data sheet ............................................ 19
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5.3 Tubings ................................................................................ 20
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III
Table of contents
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5.4 Quality Management and validation with Metrohm ....... 20
6 Troubleshooting 21
6.1 Problems ............................................................................. 21
7 Technical specifications 22
7.1 Peristaltic pump .................................................................. 22
7.2 Power supply ...................................................................... 22
7.3 Interfaces and connectors ................................................. 22
7.4 Safety specifications ........................................................... 22
7.5 Electromagnetic compatibility (EMC) ................................ 23
7.6 Ambient temperature ......................................................... 23
7.7 Reference conditions .......................................................... 23
7.8 Dimensions/material ........................................................... 24
8 Conformity and warranty 25
8.1 Quality Management Principles ........................................ 25
8.2 Warranty (Guarantee) ........................................................ 26
9 Accessories 28
9.1 Scope of delivery per model version ................................. 28
9.1.1 772 Pump Unit ...................................................................... 28
9.1.2 772 Pump Unit with aspiration equipment ............................. 29
9.1.3 772 Pump Unit with rinsing equipment .................................. 32
9.2 Optional accessories ........................................................... 35
9.2.1 772 Pump Unit ...................................................................... 35
9.2.2 772 Pump Unit with aspiration equipment ............................. 36
9.2.3 772 Pump Unit with rinsing equipment .................................. 36
Index 38
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IV
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Table of figures
Figure 1 Front 772 Pump Unit ......................................................................... 6
Figure 2 Inserting the tubing olives ................................................................. 7
Figure 3 Installing the pump tubing ................................................................ 8
Figure 4 Fastening the pressure clamp in place ................................................ 8
Figure 5 Connecting the tubings ..................................................................... 9
Figure 6 Screwing the union nuts tightly ....................................................... 10
Figure 7 772 Pump Unit directly on the Sample Processor ............................. 11
Figure 8 772 Pump Unit via the Remote Box and 731 Relay Box .................... 12
Figure 9 Direction of rotation ........................................................................ 13
Figure 10 Calculation formula for the permeability (C) ..................................... 19
Table of figures
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1 Introduction
1.1 Instrument description
The 772 Pump Unit is a versatile peristaltic pump for conveying or evacuating liquid media. It was designed specifically for the production operation and laboratory environment and enables a wide range of applications. Unlike membrane pumps, pumping organic solvents or liquids with
solids content is no problem for the 772 Pump Unit.
Therefore, the 772 Pump Unit is equally well suited for use in titration,
e.g. for evacuating titration samples with silver halide precipitation and as
a delivery pump in larger automation systems. By using the respective suitable tubing material, a wide variety of tasks can be managed.
The flow rate of up to 600 mL/min opens up a wide range of applications.
1.1.1 Model versions
The 772 Pump Unit is available in the following three versions:
1 Introduction
2.772.0110
2.772.0120 772 Pump Unit with aspiration equip-
2.772.0130 772 Pump Unit with rinsing equipment
Each version includes different accessories according to its use (see Chap-
ter 9, page 28).
1.1.2 Connectors
The 772 Pump Unit needs 16 - 24 V DC voltage.
Power is supplied to the pump via the direct connection to a Sample Processor (e.g. 814 or 815) or to the 731 Relay Box (connection via adapter
cable 6.2160.010).
1.1.3 Intended use
The 772 Pump Unit is designed for usage in automated systems in analytical laboratories.
This instrument is suitable for pumping chemicals and flammable samples.
Use of the 772 Pump Unit therefore requires the user to have basic knowledge and experience in handling toxic and caustic substances. Knowledge
with respect to the application of the fire prevention measures prescribed
for laboratories is also mandatory.
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1.2 About the documentation
1.2 About the documentation
Caution
Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which the user must follow in order to ensure safe operation of the instrument.
1.2.1 Symbols and conventions
The following symbols and formatting may appear in this documentation:
Cross-reference to figure legend
The first number refers to the figure number, the second to the instrument part in the figure.
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Instruction step
Carry out these steps in the sequence shown.
Method Dialog text, parameter in the software
File ▶ New Menu or menu item
[Next] Button or key
Warning
This symbol draws attention to a possible life hazard
or risk of injury.
Warning
This symbol draws attention to a possible hazard due
to electrical current.
Warning
This symbol draws attention to a possible hazard due
to heat or hot instrument parts.
Warning
This symbol draws attention to a possible biological
hazard.
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Caution
This symbol draws attention to a possible damage of
instruments or instrument parts.
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1.3 Safety instructions
1.3.1 General notes on safety
Warning
This instrument may only be operated in accordance with the specifications in this documentation.
This instrument has left the factory in a flawless state in terms of technical
safety. To maintain this state and ensure non-hazardous operation of the
instrument, the following instructions must be observed carefully.
1.3.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
1 Introduction
Note
This symbol marks additional information and tips.
Warning
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.
Warning
Never open the housing of the instrument. The instrument could be
damaged by this. There is also a risk of serious injury if live components
are touched.
There are no parts inside the housing which can be serviced or replaced
by the user.
Mains voltage
Warning
An incorrect mains voltage can damage the instrument.
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Only operate this instrument with a mains voltage specified for it (see
rear panel of the instrument).
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1.3 Safety instructions
Protection against electrostatic charges
Warning
Electronic components are sensitive to electrostatic charges and can be
destroyed by discharges.
Do not fail to pull the mains cable out of the mains connection socket
before you set up or disconnect electrical plug connections at the rear
of the instrument.
1.3.3 Tubing and capillary connections
Caution
Leaks in tubing and capillary connections are a safety risk. Tighten all
connections well by hand. Avoid applying excessive force to tubing
connections. Damaged tubing ends lead to leakage. Appropriate tools
can be used to loosen connections.
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Check the connections regularly for leakage. If the instrument is used
mainly in unattended operation, then weekly inspections are mandatory.
1.3.4 Flammable solvents and chemicals
Warning
All relevant safety measures are to be observed when working with
flammable solvents and chemicals.
￭ Set up the instrument in a well-ventilated location (e.g. fume cup-
board).
￭ Keep all sources of flame far from the workplace.
￭ Clean up spilled liquids and solids immediately.
￭ Follow the safety instructions of the chemical manufacturer.
1.3.5 Recycling and disposal
This product is covered by European Directive 2002/96/EC, WEEE – Waste
from Electrical and Electronic Equipment.
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The correct disposal of your old equipment will help to prevent negative
effects on the environment and public health.
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1 Introduction
More details about the disposal of your old equipment can be obtained
from your local authorities, from waste disposal companies or from your
local dealer.
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2 Overview of the instrument
1
2
3
4
5
6
7
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Figure 1 Front 772 Pump Unit
Status LED
1
For displaying the operating state.
Pressure clamp
3
For the counterpressure to the pump tubing.
Tubing clamp (outlet)
5
Connection cable
7
With M8 plug for connection to a Sample
Processor.
Locking lever with clamping screw
2
Rotor
4
Tubing clamp (inlet)
6
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