Metrohm 793 IC User manual

793 IC Sample Prep Module
IC Sample Prep Module793 Metrohm
ON ON
OFFOFF
REMOTE PUMP
POWER
ON
OFF
REMOTE
STEP
ACTUATOR
Instructions for Use
8.793.1003
CH-9101 Herisau/Schweiz
E-Mail [email protected]
Internet www.metrohm.com

CH-9101 Herisau/Switzerland
E-Mail [email protected]
Internet www.metrohm.com
793 IC Sample Prep Module
Instructions for Use
8.793.1003 06.2001 / up

Table of contents
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use I
Table of contents
1 Introduction............................................................................................ 1
1.1 Instrument description ............................................................................ 1
1.2 Parts and controls .................................................................................... 2
1.3 Information about the Instructions for Use ......................................... 4
1.3.1 Organization.................................................................................. 4
1.3.2 Notation and pictograms.............................................................. 5
1.4 Safety notes............................................................................................... 6
1.4.1 Electrical safety ............................................................................. 6
1.4.2 General precautionary rules ......................................................... 6
2 Installation.............................................................................................. 7
2.1 Setting up the instrument ....................................................................... 7
2.1.1 Packaging ..................................................................................... 7
2.1.2 Check............................................................................................ 7
2.1.3 Location ........................................................................................ 7
2.1.4 Arrangement of the instruments ................................................... 7
2.2 Mains connection ..................................................................................... 8
2.2.1 Setting the mains voltage ............................................................. 8
2.2.2 Fuses ............................................................................................ 9
2.2.3 Mains cable and mains connection ............................................. 9
2.2.4 Switching the instrument on/off .................................................... 9
2.3 Connection to a Modular IC System for Neutralization ................... 10
2.3.1 Electrical connection................................................................... 10
2.3.2 Connection of the SP Module A ................................................. 11
2.3.3 Settings in the «IC Net 2.1» program.......................................... 16
2.4 Connection to a Modular IC System for Cation Elimination ........... 18
2.4.1 Electrical connection................................................................... 18
2.4.2 Connection of the SP Module A ................................................. 19
2.4.3 Settings in the «IC Net 2.1» program.......................................... 22
3 Operation ............................................................................................... 23
3.1 Handling the SP Module A .................................................................... 23
3.2 Manual operation .................................................................................... 24
3.3 Operation via IC Detector 732 .............................................................. 25
4 Malfunctions – Maintenance........................................... 28
4.1 Malfunctions and their rectification .................................................... 28
4.2 Maintenance and servicing................................................................... 30
4.2.1 Care............................................................................................. 30
4.2.2 Maintenance by Metrohm service .............................................. 30
4.2.3 Shutdown .................................................................................... 30
4.2.4 Exchanging the pump tubing ..................................................... 31
4.2.5 Regeneration of the cation exchange material .......................... 32
4.2.6 Cleaning the SP Module A.......................................................... 33
4.2.7 Exchanging the cation exchange material ................................. 35
4.2.8 Braking range adjustment .......................................................... 36

Table of contents
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
II
5 Appendix ................................................................................................. 38
5.1 Technical data......................................................................................... 38
5.2 Standard equipment .............................................................................. 40
5.3 Optional accessories ............................................................................. 41
5.4 Warranty and conformity ...................................................................... 42
5.4.1 Warranty.......................................................................................42
5.4.2 EU Declaration of conformity ......................................................43
5.4.3 Certificate of conformity and system validation ..........................44
5.5 Index ......................................................................................................... 45
List of figures
Fig. 1: Front of the 793 IC Sample Prep Module..........................................................2
Fig. 2: Rear of the 793 IC Sample Prep Module...........................................................3
Fig. 3: SP Module A (1.793.0110).................................................................................4
Fig. 4: Setting the mains voltage ..................................................................................9
Fig. 5: Connection 793 IC Sample Prep Module -
Modular IC System for Neutralization ..............................................................10
Fig. 6: Connections at SP Module A...........................................................................12
Fig. 7: Installing pump tubings ...................................................................................13
Fig. 8: Connection 793 IC Sample Prep Module -
Modular IC System for cation elimination........................................................18
Fig. 9: Assembling the actuator..................................................................................34
Fig. 10: Adjusting the braking range ............................................................................37

1.1 Instrument description
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 1
1 Introduction
1.1 Instrument description
The 793 IC Sample Prep Module consists of a reactor block (SP
Module A) with its corresponding control unit; this contains an addi-
tional 2-channel peristaltic pump.
Inline sample pretreatment like neutralization or cation exchange for ion
chromatographic analyses can be carried out with the cation exchanger
built into the SP Module A. The SP Module A contains three cation ex-
change units which are in turn used for cation exchange, regenerated
with acid and rinsed with water. In order to perform each analysis under
comparable conditions a freshly regenerated cation exchange unit is
normally used. Switching is either carried out automatically by the IC
system or manually. Due to possible interference of sulfate with the IC
determination, perchloric acid is normally used for cation exchanger re-
generation of the SP Module A instead of sulphuric acid.
At the control unit the SP Module A can either be switched to the next
position manually or by remote control via the remote interface. The
built-in peristaltic pump, which delivers the solutions required for oper-
ating the SP Module A, can also be switched on by remote control or
manually.
The 793 IC Sample Prep Module is particularly suitable for retrofitting a
modular anion IC system for inline sample pretreatment in a simple
manner. Two typical applications are described in detail in these in-
structions for use: Neutralization (e.g. exchange of Na
+
by H
+
) and
Cation Separation (e.g. exchange of heavy metals by H
+
). Of course
the 793 IC Sample Prep Module can also be combined with all other
HPLC components currently on the market.
Although in principle the techniques of cation exchange by the 793 IC
Sample Prep Module and suppression by the 753 Suppressor Module
are comparable, the 793 IC Sample Prep Module is not suitable for
chemical suppression after ion chromatographic separation of anions.

1 Introduction
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
2
1.2 Parts and controls
IC Sample Prep Module793 Metrohm
ON ON
OFFOFF
REMOTE PUMP
POWER
1
11
14
44
45
55
5
9
99
9
11
1111
1112
1212
12 10
1010
10
ON
OFF
REMOTE
STEP
ACTUATOR
2
22
23
33
36
66
67
77
78
88
8
Fig. 1: Front of the 793 IC Sample Prep Module
1
11
1
Power on lamp
Lights up when instrument is switched
on
7
77
7 SP Module A position display
Is lit up when the actuator is "in position"
2
22
2 Pump Remote ON/OFF
On/Off switch for remote control of the
pump
8
88
8 Actuator step
Switches the actuator to the next
position (manual operation mode)
3
33
3 Pump ON/OFF
On/Off switch for the pump (manual
operation mode)
9
99
9 Holding clamp
For locking the tubing cartridge into
place
4
44
4 Tubing cartridge
For 6.1826.010 Pump tubing
10
1010
10 Snap-action lever
For releasing the tubing cartridge
5
55
5 Contact pressure lever
For adjusting the contact pressure
11
1111
11 Pump drive
Roller head with contact rollers
6
66
6 SP Module A Remote ON/OFF
On/Off switch for remote control of the
actuator
12
1212
12 Mounting pin
For attaching the tubing cartridge

1.2 Parts and controls
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 3
WARNING - Fire Hazard -
with the same type and rating of fuse
For continued protection replace only
Type
Made by Metrohm Herisau Switzerland
14
1414
1413
1313
13
19
1919
19 15
1515
15
Remote
110V-120V
220V-240V
0,5A(T)
0,25A(T)
50 - 60 Hz 50 VA
PumpActuator
ActuatorBreakpoint
'
''
't
ACB
20
2020
20 16
1616
1617
1717
1718
1818
18
S
Fig. 2: Rear of the 793 IC Sample Prep Module
13
1313
13 Mains switch
For switching the instrument on/off:
I = ON 0 = OFF
17
1717
17 Connection for SP Module A
14
1414
14 Serial number 18
1818
18 Adjustment screw for braking
range
15
1515
15 Remote interface for pump
Remote I/O lines for connection of
external devices (e.g. 732 IC Detector)
19
1919
19 Mains connection plug
Mains connection, see section 2.2
16
1616
16 Remote interface for actuator
Remote I/O lines for connection of
external devices (e.g. 732 IC Detector)
20
2020
20 Fuse holder
Changing the fuses, see section 2.2

1 Introduction
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
4
Fig. 3: 1.793.0110 SP Module A
1.3 Information about the Instructions for Use
Please read through these Instructions for Use carefully before you put
the 793 IC Sample Prep Module into operation. The Instructions for
Use contain information and warnings to which the user must pay
attention in order to assure safe operation of the instruments.
1.3.1 Organization
These Instructions for Use 8.793.1003 for the 793 IC Sample Prep
Module provide a comprehensive overview of the startup procedure,
operation, fault rectification and technical specifications of these in-
struments. The Instructions for Use are organized as follows:
Section 1 Introduction
General description of instruments, parts and controls
and safety notes
Section 2 Installation
Setting up, mains connection, attachment of accesso-
ries, connection to IC system
Section 3 Operation
Manual operation and operation via 732 IC Detector
Section 4 Faults – Maintenance
Fault rectification, maintenance
Section 5 Appendix
Technical data, standard equipment, options, warranty,
declarations of conformity, index
To find the required information on the instruments please use either
the Table of contents or the Index at the back.
21
2121
21
Reactor block
22
2222
22 Actuator connection
with permanently fixed inlet and
outlet capillaries
23
2323
23 Connection cable
Connection cable to control unit
21
2121
21 22
2222
22 23
2323
23
1
3
2
SP Module A
Io n ana lysis

1.3 Information about the Instructions for Use
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 5
1.3.2 Notation and pictograms
The following notations and pictograms (symbols) are used in these In-
structions for Use:
<PUMP> Switch or key
15
1515
15 Part or control of 793
89
8989
89 Part or control of 732/733
" Range " Parameter or entry value
at 732 IC Detector
>PARAM/detector
range: 1.00 mS/cm
Display
Text in display 1
11
1of the 732 IC
Detector
Hazard
This symbol draws attention to a
possible danger to life or of injury if
the associated directions are not
followed correctly.
Warning
This symbol draws attention to
possible damage to instruments or
instrument parts if the associated
directions are not followed cor-
rectly.
Caution
This symbol marks important
information. First read the associ-
ated directions before you con-
tinue.
Comment
This symbol marks additional
information and tips.

1 Introduction
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
6
1.4 Safety notes
1.4.1 Electrical safety
While electrical safety in the handling of the 793 IC Sample Prep Mod-
ule is assured in the context of the specifications IEC 1010-1 (protection
class I, degree of protection IP20), the following points should be no-
ted:
x Mains connection
Setting the mains voltage, checking the mains fuse and the mains
connection must be effected in accordance with the instructions in
section 2.2.
x Opening the 793 IC Sample Prep Module
When the 793 IC Sample Prep Module is connected to the power
supply the instrument must neither be opened nor should parts be
removed from it, otherwise there is a danger of coming into contact
with components which are live. Always disconnect the instrument
from all voltage sources before you open it and ensure that the mains
cable is disconnected from mains connection 19
1919
19 !
x Protection against static charges
Electronic components are sensitive to static charging and can be
destroyed by discharges. Before you touch any of the components
inside the 793 IC Sample Prep Module, you should earth yourself and
any tools you are using by touching an earthed object (e.g. housing of
the instrument or a radiator) to eliminate any static charges which
exist.
1.4.2 General precautionary rules
x Handling of solvents
Check all pump tubings and all input and output lines periodically for
possible leaks. Follow the relevant instructions regarding the handling
of flammable and/or toxic solvents and their disposal.
x Regular exchange of pump tubings
Pump tubings are consumable material and must be replaced from
time to time (see Section 4.2.4). Suitable measures must be taken so
that any leak which might occur in the pump tubing or connections
during unattended operation will cause no damage (placing the
instrument at the bottom, collection device for any liquid which may
leak out).

2.1 Setting up the instrument
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 7
2 Installation
2.1 Setting up the instrument
2.1.1 Packaging
The 793 IC Sample Prep Module is supplied together with the sepa-
rately packed accessories in special packagings containing shock-
absorbing foam linings designed to provide excellent protection. The
actual instrument is packed in an evacuated polyethylene bag to pre-
vent the ingress of dust. Please store all these special packagings as
only they can assure damage-free transport of the instrument.
2.1.2 Check
After receipt, immediately check whether the shipment is complete and
has arrived without damage (compare with delivery note and list of
accessories in section 5.2). In the case of transport damage, see
instructions in section 5.4.1 "Warranty".
2.1.3 Location
Position the instruments in the laboratory at a location convenient for
operation, free from vibrations and protected against a corrosive
atmosphere and contamination by chemicals.
2.1.4 Arrangement of the instruments
The best position for the 793 IC Sample Prep Module is beside the Mo-
dular IC System (e.g. 733 IC Separation Center).
The 793 IC Sample Prep Module should always be placed at the
bottom of the instrument stack so that any leaks which may occur in
the pump tubing or connections cannot cause damage to the other
instruments by leakage of corrosive liquids (e.g.acid).

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
8
2.2 Mains connection
Follow the instructions below for connecting to the power supply. If
the instrument is operated with the mains voltage set wrongly and/or
wrong mains fuse there is a danger of fire!
2.2.1 Setting the mains voltage
Before switching on the 793 IC Sample Preparation Module for the first
time, check that the mains voltage set on the instrument (see Fig. 2)
matches the local mains voltage. If this is not the case, you must reset
the mains voltage on the instrument as follows:
1 Disconnect mains cable
Disconnect mains cable from mains connection plug 19
1919
19 of the
793 IC Sample Preparation Module.
2 Remove fuse holder
Using a screwdriver, loosen fuse holder 20
2020
20 below the mains
connection 19
1919
19 and take out completely.
3 Check fuse
Carefully take the fuse installed for the desired mains voltage
out of fuse holder 20
2020
20 and check its specifications (the position
of the fuse in the fuse holder is marked by the white arrow
imprinted next to the mains voltage range):
100}
}}
}120 V 0.5 A (slow-blow) Metrohm No. U.600.0013
220}
}}
}240 V 0.25 A (slow-blow) Metrohm No. U.600.0010
4 Insert fuse
Change fuse if necessary and reinsert in fuse holder 20
2020
20.
5 Install fuse holder
Depending on the desired mains voltage, insert fuse holder in
the 793 IC Sample Preparation Module so that the correspond-
ing mains voltage range can be read normally and the adjacent
white arrow points to the white bar imprinted below the fuse
holder (see Fig. 4).

2.2 Mains connection
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 9
13
1313
13
220 -
--
-240 V
100 -
--
-120 V
19
1919
19
20
2020
20
220 -
--
-240 V
100 -
--
-120 V
Fig. 4: Setting the mains voltage
2.2.2 Fuses
One of the two fuses 0.5 A/slow-blow for 100}120 V or 0.25 A/slow-
blow for 220}240 V is installed in fuse holder 20
2020
20 of the 793 IC Sample
Prep Module as standard.
Ensure that the instrument is never put into operation with fuses of
another type, otherwise there is danger of fire!
For checking or changing fuses, proceed as described in section 2.2.1.
2.2.3 Mains cable and mains connection
Mains cable
The instrument is supplied with one of three mains cables:
x 6.2122.020 with plug SEV 12 (Switzerland, })
x 6.2122.040 with plug CEE(7), VII (Germany, })
x 6.2133.070 with plug NEMA 5-15 (USA, })
which are three-cored and fitted with a plug with an earthing pin. If a dif-
ferent plug has to be fitted, the yellow/green lead (IEC standard) must
be connected to protective earth (protection class I).
Any break in the earthing inside or outside the instrument can make it
a hazard!
Mains connection
Plug the mains cable into mains connection plug 19
1919
19 of the 793 IC
Sample Prep Module (see Fig. 4).
2.2.4 Switching the instrument on/off
The 793 IC Sample Prep Module is switched on and off using mains
switch 13
1313
13. When the instrument is switched on lamp 1
11
1lights up.
100 – 120 V
220 – 240 V
13
1313
13 Mains switch
19
1919
19
Mains connec-
tion plug
2
22
20
00
0 Fuse holder

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
10
2.3 Connection to a Modular IC System for
Neutralization
An important application for the 793 IC Sample Prep Module is neutrali-
zation of an alkaline sample for anion determination by IC with chemical
suppression. Strong bases (e.g. 30 % NaOH) should not be led unlim-
ited to the SP Module A. To provide a sufficient capacity for exchanging
Na
+
by H
+
Ions, only a small fraction (e.g. 20 µL) is directed to the SP
Module A using a sample loop. The analyte anions are preconcentrated
subsequently on a preconcentration column and finally eluted to the
separation column in counter flow by the eluent.
Therefore, such an IC system corresponds to the Modular IC System
6(MIC 6: Anion system with chemical suppression, preconcentration
and matrix elimination) enhanced by the 793 IC Sample Prep Module.
If the sample doesn’t require matrix elimination and preconcentration, it
can be treated directly by the SP Module A. This could be an option for
samples containing only low amounts of the cations which have to be
eliminated. For this purpose, a system as described in section 2.4
should by used.
The following pages describe the electronic connections of this system
in combination with the 766 IC Sample Processor on the base of full
control by «IC Net 2.1».
2.3.1 Electrical connection
The 793 IC Sample Prep Module is connected to an IC system consist-
ing of 732 IC Detector, 733 IC Separation Center (two injectors), 709 IC
Pump, 752 IC Pump Unit, 753 IC Suppressor Module and 762 IC Inter-
face as shown in Fig. 5.
753
793
752
762
733
709
732
PC
6.2134.100
6.2134.080
6.2134.090
6.2128.130
6.2143.210
6.2115.070
6.2125.120
6.2125.090
6.2141.110
6.2143.200
6.2128.180
6.2128.180
6.2128.180
B (LOOP) A (PCC)
Fig. 5: Connection 793 IC Sample Prep Module -
Modular IC System for Neutralization

2.3 Connection to a Modular IC System for Neutralization
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 11
Please note, that the suppressor of the 753 IC Suppressor Module is
not switched by the 766 Sample Processor program. The remote con-
nection 16
1616
16 (suppressor/actuator) of the 753 IC Suppressor Module is
connected to the event line “fill” of the 733 valve B instead, using the
6.2128.180 cable. Thus the suppressor is switched when the fill position
is accessed by valve B.
2.3.2 Connection of the SP Module A
The following description implies the usage of the 2.733.0120 IC Sepa-
ration Center (two injectors).
The 1.793.0110 SP Module A must first be inserted in the 733 IC Sepa-
ration Center and connected to the 793 IC Sample Prep Module. Addi-
tionally, the suppressor block of the 753 Suppressor Module is inserted
and connected, which is described in detail in the corresponding
8.753.1001 Instructions for Use.
The connection of all parts should be done as described by the follow-
ing scheme:
B
Fill Inject
A
SP
Module
A
752 793 709
MSM
753
B
Inject Fill
A
SP
Module
A
752 793 709
MSM
753
B
Inject Inject
A
SP
Module
A
752 793 709
MSM
753
H
2
O Regenerant RegenerantEluentH
2
OH
2
O
H
2
O Regenerant RegenerantEluentH
2
OH
2
O
H
2
O Regenerant RegenerantEluentH
2
OH
2
O
A
) Sample loop at valve B
is filled.
B) Sample is neutralized
by SP Module A;
Anions are preconcen-
trated via valve A..
C) Preconcentrated
anions are eluted to
the separation column.
sample
sample
sample
preconcentration
column
separation
column
separation
column
separation
column
preconcentration
column
preconcentration
column

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
12
The inlet and outlet capillaries mounted on the SP Module A are then
connected up. Proceed as follows:
1 Insert SP Module A
x Place SP Module A 21
2121
21 on the floor of the inner chamber of
the 733 Separation Center.
2 Connect SP Module A
x Remove the plastic stopper from opening 41
4141
41 or 43
4343
43 on the
733 IC Separation Center and push cable 23
2323
23 mounted on the
SP Module A 21
2121
21 through the opening.
x Connect cable 23
2323
23 to connection 17
1717
17 “Actuator“ of the 793 IC
Sample Prep Module (see Fig. 5).
3 Connect sample line to 793 SP Module A
x Screw inlet capillary 24
2424
24 marked with "Sample in" at SP Module
A connection 22
2222
22 (see Fig. 6) onto connection “5” of injection
valve B using a 6.2744.010 compression fitting.
4 Connect SP Module A to valve A (Preconcentration
column)
x Screw outlet capillary 29
2929
29 marked with “Sample out” onto
connection “1” of injection valve A using a 6.2744.010 com-
pression fitting.
x Please note, that the preconcentration column at valve A has
to be rinsed in counterflow when switched from “Fill” to “In-
ject”.
1
3
2
24
2424
24
27
2727
27
28
2828
28
29
2929
2925
2525
25
26
2626
26
Fig. 6:
Connections at SP Module A
24
2424
24 Inlet capillary for sample
25
2525
25 Inlet capillary for acid
26
2626
26 Outlet capillary for acid
27
2727
27 Outlet capillary for H
2
O
28
2828
28 Inlet capillary for H
2
O
29
2929
29 Outlet capillary for sample
H
2
O
Regenerant
Waste
Sam
p
le in
Sam
p
le out
Waste

2.3 Connection to a Modular IC System for Neutralization
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 13
5 Attach pump tubings
x Loosen both tubing cartridges 4
44
4 from the holding clamp 9
99
9 by
pressing down snap-action lever 10
1010
10 and remove from mount-
ing pin 12
1212
12 on 793 Sample Prep Module (see Fig. 1).
x Press contact pressure lever 5
55
5on both tubing cartridges
down as far as it will go.
x Insert a length of pump tubing 33
3333
33 (6.1826.010, ~1.3 mL/min)
into each of the tubing cartridges as shown in Fig. 7. The
white-white stopper 34
3434
34 must click into the corresponding
holder on the left-hand side of the tubing cartridge.
x Place the tubing cartridges on mounting pin 12
1212
12 and press
down on the right-hand side until snap-action lever 10
1010
10 clicks
into position on holding clamp 9
99
9. Take care that no kinks are
formed in the pump tubing.
30
3030
30 32
3232
32 33
3333
33 34
3434
34 4
44
45
55
534
3434
34 35
3535
35 25/28
25/2825/28
25/2810
1010
10 36
3636
3631
3131
31 31
3131
31
Fig. 7: Installing pump tubings
4
44
4
Tubing cartridge 31
3131
31 PEEK compression fitting
(6.2744.010)
5
55
5 Contact pressure lever 32
3232
32 PEEK coupling (6.2744.030)
10
1010
10 Snap-action lever 33
3333
33 Pump tubing (6.1826.010)
25
2525
25 SP Module A inlet capillary
for HClO
4
34
3434
34 Stopper (white-white)
28
2828
28 SP Module A inlet capillary
for H
2
O
35
3535
35 PEEK coupling (6.2744.110)
30
3030
30 PTFE tubing (6.1803.020) 36
3636
36 PEEK filter unit (6.2821.100)

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
14
6 SP Module A connection 2: Regenerant
x Pull the inlet capillary 25
2525
25 marked with “Regenerant“ at SP
Module A connection 22
2222
22 (see Fig. 6) through one of the rear
panel openings 41
4141
41 or 43
4343
43 of the 733 IC Separation Center.
x Mount a PEEK compression fitting 31
3131
31 (6.2744.010) on the
end of inlet capillary and screw this on to PEEK filter unit 36
3636
36
(6.2821.100) (see Fig. 7).
x Mount coupling 35
3535
35 on to the inlet of the PEEK filter unit and
push this coupling on to outlet end of the first pump tubing
33
3333
33 (see Fig. 7).
x Mount suction tubing: cut a piece of PTFE Tubing 30
3030
30
(6.1803.020) to the desired length.
x Mount a PEEK compression fitting 31
3131
31 (6.2744.010) on one
end of PTFE tubing 30
3030
30 and screw this on to coupling 32
3232
32 (see
Fig. 7).
x Push coupling 32
3232
32 on to the inlet end of the first pump tubing
33
3333
33 (see Fig. 7).
x Immerse the other end of the suction tubing in a vessel
containing regeneration solution (normally 20 mmol/L HClO
4
)
and fix in place.
x Pull outlet capillary 26
2626
26 marked with "Waste" at SP Module A
connection 22
2222
22 (see Fig. 6) through one of the rear panel
openings 41
4141
41 or 43
4343
43 of the 733 IC Separation Center.
x Lead outlet capillary 26
2626
26 to a sufficiently large waste container
and fix in place.
7 SP Module A connection 3: H
2
O
x Pull the inlet capillary 28
2828
28 marked with “H
2
O“ at SP Module A
connection 22
2222
22 (see Fig. 6) through one of the rear panel ope-
nings 41
4141
41 or 43
4343
43 of the 733 IC Separation Center.
x Mount a PEEK compression fitting 31
3131
31 (6.2744.010) on the
end of inlet capillary 28
2828
28 and screw this on to the second
PEEK filter unit 36
3636
36 (6.2821.100) (see Fig. 7).
x Mount coupling 35
3535
35 on to the inlet of the PEEK filter unit and
push this coupling on to outlet end of the second pump tub-
ing 33
3333
33 (see Fig. 7).
x Mount suction tubing: cut a piece of PTFE Tubing 30
3030
30
(6.1803.020) to the desired length.
x Mount a PEEK compression fitting 31
3131
31 (6.2744.010) on one
end of PTFE tubing 30
3030
30 and screw this on to coupling 32
3232
32 (see
Fig. 7).
x Push coupling 32
3232
32 on to the inlet end of the second pump
tubing 33
3333
33 (see Fig. 7).
x Immerse the other end of the suction tubing in a vessel con-
taining rinsing solution (normally dist. H
2
O) and fix in place.
x Pull outlet capillary 27
2727
27 marked with “Waste“ at SP Module A
connection 22
2222
22 (see Fig. 6) through one of the rear panel ope-
nings 41
4141
41 or 43
4343
43 of the IC Separation Center 733.
x Lead outlet capillary 27
2727
27 to a sufficiently large waste container
and fix in place.

2.3 Connection to a Modular IC System for Neutralization
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use 15
8 Startup of 793 IC Sample Prep Module
x Set switch <REMOTE> 2
22
2to "OFF".
x Switch on 793 IC Sample Prep Module with mains switch 13
1313
13
and set switch <PUMP> 3
33
3to "ON".
x Adjust the contact pressure for both tubing cartridges: press
contact pressure lever 5
55
5upwards until the solutions just start
to be drawn in. Then press the contact pressure lever up-
wards until it clicks once more to obtain optimal contact pres-
sure.
x Check all tubing from the storage vessels through the tubing
cartridges and the SP Module A up to the waste containers
for leakage of liquids. If liquid escapes anywhere the corre-
sponding compression fitting must be tightened further or
changed.
x Before using the SP Module A for sample pretreatment, its
cation exchange material should be conditioned. Inject 30%
sodium hydroxide 15 times (five injections per unit) using the
sample program of the system “Neutralization” as described
in the following section. The run time can be 20 min. each
while the separation column doesn’t have to be installed.
Pump tubings are consumable material with a lifetime which depends
on the contact pressure. This is why the tubing cartridges should be
raised completely by loosening snap-action lever
10
1010
10 on the right-hand
side if the pump is to remain switched off for a considerable length of
time (the set contact pressure remains unchanged).

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
16
2.3.3 Settings in the «IC Net 2.1» program
During configuration of the 793 IC Sample Prep Module and 753 Sup-
pressor Module the IC Net assistant “New system wizard” requires the
definition of “Event lines” for the SP Module A and suppressor, respec-
tively. Although these lines are not installed you must enter any unused
“Event line” to enable the program to proceed. Actually, the SP Module
A is controlled by the 766 sample processor, while the suppressor is
controlled by the event line from 733 valve B (see Fig. 5).
A main program for the system “neutralization.smt“ is defined together
with two programs for extra systems for the 766 IC Sample Processor.
“start-neutralization.smt“ starts the 752 Pump. Furthermore, the SP
Module A is rinsed at all three positions. “end-neutralization.smt“ turns
off the 752 Pump..
The peristaltic pumps of the 753 IC Suppressor Module and 793 IC
Sample Prep Module are started when the IC system is activated
(measuring baseline). For this, the option ’Start pump with startup
Start pump with startupStart pump with startup
Start pump with startup
hardware
hardwarehardware
hardware’ has to be selected for both devices.
neutralization.smt
1. Program for the 766 IC Sample Processor:
001 Ctrl INIT 732
002 Move sample
003 Lift work
004 Ctrl FILL B / STEP 1
005 Pump 120 s
006 Ctrl FILL A 1
007 Ctrl INJECT B1
008 Wait 60 s
009 Ctrl ZERO 1
010 Ctrl INJECT A1
011 Ctrl STEP MSM 753
 Initialize remote interface
 Move needle to sample position
 Place lift with needle to working position
 Switch injection valve B at 733 to "Fill"
 Fill first sample loop (B) with sample
 Switch injection valve A at 733 to "Fill"
 Switch injection valve B at 733 to "Inject"
 Pump sample to sample loop A via SP Module A (*)
 Trigger autozero at 732 IC Detector
 Switch injection valve A at 733 to "Inject"
 Switch SP Module A to next position
(*) The time for pumping the sample to the SP Module A should be as small as
possible to avoid contamination of the subsequent preconcentration column
by other anions from the water used for this line. For this reason, calibration
procedures should include blank measurements with this water.