Hach SIGMATAX 2 User Manual

DOC023.52.03103

SIGMATAX 2

User manual

05/2018, Edition 3

3

Table of Contents

Section 1 Specifications ........................................................................................................................ 5

Section 2 General Information............................................................................................................... 7

2.1 Safety information............................................................................................................................... 7

2.1.1 Use of hazard information.......................................................................................................... 7

2.1.2 Precautionary labels .................................................................................................................. 7

2.2 Application areas ................................................................................................................................ 8

2.3 Functional description......................................................................................................................... 8

2.4 Instrument design ............................................................................................................................... 9

Section 3 Installation............................................................................................................................ 11

3.1 Mechanical installation...................................................................................................................... 12

3.1.1 Install the sampling probe........................................................................................................ 14

3.1.2 Second mounting point and extension pipe............................................................................. 16

3.1.3 Install the open loop control unit .............................................................................................. 18

3.1.4 Prepare the connection tube.................................................................................................... 20

3.1.5 Connect the connection tube ................................................................................................... 21

3.2 Electrical installation ......................................................................................................................... 22

3.2.1 Connect the pipe trace heater and fault indication contact...................................................... 22

3.2.2 Connect the fiber optic cable ................................................................................................... 24

3.3 Internal tubing ................................................................................................................................... 24

Section 4 Start Up................................................................................................................................. 27

Section 5 Operation.............................................................................................................................. 29

5.1 Operation .......................................................................................................................................... 29

5.2 Menu overview.................................................................................................................................. 30

5.3 Important instrument settings ........................................................................................................... 31

5.3.1 Switch on the heater ................................................................................................................ 31

5.3.2 Set the processing interval....................................................................................................... 31

5.3.3 Set the display contrast............................................................................................................ 31

5.3.4 Switch on the pressure display ................................................................................................ 31

5.3.5 Access service mode............................................................................................................... 32

Section 6 Maintenance......................................................................................................................... 33

6.1 Maintenance tasks............................................................................................................................ 34

6.1.1 After 1–4 weeks (as necessary)............................................................................................... 34

6.1.2 1×/month (or as necessary) ..................................................................................................... 35

Section 7 Troubleshooting................................................................................................................... 37

Section 8 Replacement parts and accessories ............................................................................... 39

8.1 Product contents............................................................................................................................... 39

8.2 Further accessories .......................................................................................................................... 39

8.3 Replacement and wear parts............................................................................................................ 39

Section 9 Warranty and liability........................................................................................................... 41

4

Table of Contents

5

Section 1 Specifications

From software version 1.6. Subject to change.

Measurement
Principle of operation Samples delivered under pressure, homogenized using ultrasound
Interval 12 to 20 minutes
Sample quantity For up to 2 PHOSPHAX sigma or TOCTAX process photometers
Tube length 10 m, 20 m, 30 m (393.7 in, 787.4 in, 1181.1 in)
Suction height Maximum 7 m (275.6 in) (with tube of length 30 m (1181.1 in): maximum 6 m 236.2 in)
Environmental cond iti ons

Ambient temperature

Control unit: +5 °C to +40 °C (+41 °F to +104 °F)

Connection tube: –20 °C to +40 °C (–4 °F to +104 °F)

(Without additional insulation; in the event of low external temperatures, correct operation can
only be guaranteed with additional insulation. More information available on request)

Medium temperature +5 °C to + 30 °C (+41 °F to +86 °F) (probe)
Equipment properties
Protection type in accordance with IP 54 (Control unit)

Outputs

Fault indication contact, potential-free, 24 V, maximum 1 A
Service interface: RS 232

Power connector 230 V AC / 50 Hz

Power consumption

Device with system components : 600 VA
Recommended fuse: 10 A, time-delay

Line Heater off Heater on (–20 °C (–4 °F))

Continuous
operation

At startup

10 m (393.7 in) 150 VA 250 VA 1300 VA

20 m (787.4 in) 150 VA 350 VA 2300 VA

30 m (1181.1 in) 150 VA 470 VA 3000 VA

Inspection interval: 3 months
Maintenance requirement: Approximately 0.5 h/week, typically

Dimensions:

Open loop control unit: W × H × D 366 × 560 × 212 mm (14.4 × 22 × 8.3 in
Probe: Ø × L 133 × 404 mm (5.2 × 15.9 in

Earth (approximate)

Control unit: 12 kg

Sampling probe 10 m (393.7 in) 7.5 kg

Sampling probe 20 m (787.4 in) 15 kg

Sampling probe 30 m
(1181.1 in)

22 kg

Mounting poles: 10 kg

6

Specifications

7

Section 2 General Information

2.1 Safety information

Please read this entire manual before unpacking, setting up, or operating this equipment.
Pay attention to all danger and caution statements. Failure to do so could result in serious
injury to the operator or damage to the equipment.

To prevent damage to or impairment of the device's protection equipment, the device may
only be used or installed as described in this manual.

2.1.1 Use of hazard information

Note: Information that supplements points in the main text.

2.1.2 Precautionary labels

Observe all labels and notices attached to the instrument and/or delivery packaging.
Personal injury or damage to the instrument could occur if not observed.

DANGER

Indicates a potentially or imminently hazardous situation that, if not avoided, can result in death or
serious injury.

WA RN IN G

Indicates a potentially or imminently dangerous situation that, if it is not avoided, can lead to
death or to serious injuries.

CAUTION

Indicates a possible dangerous situation that can have minor or moderate injuries as the result.

NOTICE

Indicates a situation that, if it is not avoided, can lead to damage to the device. Information that
requires special emphasis.

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety
information.

This symbol may be found on an enclosure or barrier within the product and indicates a risk of electric shock
and/or death by electrocution.

Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal
systems after 12 August 2005. In conformity with European local and national regulations (EU Directive
2002/96/EC), European electrical equipment users must now return old or end-of life equipment to the
manufacturer for disposal at no charge to the user.

Note: You obtain instructions on the correct disposal of all (marked and not marked) electrical products that
were supplied or manufactured by Hach-Lange at your relevant Hach-Lange sales office.

When carrying or transporting the instrument/instrument components and if the total weight is more than 18 kg,
make sure that suitable lifting equipment is used and/or that the instrument/instrument components are carried
by 2

people.

18-32 kg (39.7-70.5 lbs)

8

General Information

2.2 Application areas

Automatic sample removal and homogenization system for supplying the PHOSPHAX S
sigma (total phosphorus), TOCTAX (total organic carbon, TOC) and astro TOC (total
organic carbon, TOC) process photometers with samples from water containing solid
particles with a diameter < 0.5 mm.

2.3 Functional description

A sampling probe is immersed in the water and draws only the sample volume required for
the analysis without coming into contact with pumps. The sample is conveyed into a small
storage vessel in the open loop control unit and is homogenized using an ultrasound
generator.

NOTICE

Any use other than use in accordance with requirements defined in the user manual leads to the
loss of the warranty claims and can lead to personal injury and property damage, for which the
manufacturer assumes no liability.

9

General Information

2.4 Instrument design

Figure 1 Control unit

1 Sample storage vessel 5 Pressure sensor line 9 Overflow drain tube
2 Sample storage vessel lid 6 Display with keypad 10 Sample storage vessel drain tube
3 Sample tube 7 Sample removal for process

instruments

11 Connection tube from the probe

4 Fiber optic cable for

PHOSPHAX

sigma or TOCTAX

8 Mains connection cable 12 Ultrasound transducer

10

General Information

Figure 2 Sampling probe

1 Connection tube 3 Sampling vessel 5 Air outlet
2 Probe cover 4 Valve cover 6 Drain valve

11

Section 3 Installation

DANGER

Only qualified experts may conduct the tasks described in this section.

DANGER

Select a suitable attachment point for the instrument.
Plan out the mechanical mount·before positioning poles or drilling holes. Make sure the mount

has a sufficient bearing capacity. The dowels must be selected and authorized according to the
condition of the wall.

The manufacturer shall accept no liability if the instrument is installed incorrectly.
Plan how to lay cables and tubes and their path in advance. Lay the tubes, data cables and

power cables without any bends and so they do not pose a tripping risk.
Do not connect the electrical supply to the mains·until the instrument is completely wired and

protected against short circuits.
Sufficiently protect the electrical power supply against short circuits.
For the external power supply, always connect a residual-current circuit breaker·(trip current

max.: 30 mA) between the mains and the system.
If the instrument is to be installed outdoors, connect a surge arrester between the mains and the

system.
Products intended by the manufacturer for outdoor use offer a higher level of protection against

the penetration of liquids and dust. If these products are connected to a mains outlet with a cable
and plug·rather than a permanently connected cable, the plug and outlet are much more
susceptible to liquid and dust penetration. The operator must sufficiently protect the plug and
outlet against liquid and dust penetration in accordance with local safety regulations. If the
instrument is to be used outdoors, it must be connected to a suitable outlet with a protection type
of at least IP44 (splash protection).

WA RN IN G

Electrical and fire hazards. Only use the mains cable supplied. Only qualified experts may
perform the tasks described in this section of the manual, while adhering to all locally valid safety
regulations.

NOTICE

Protect the instrument from extreme temperatures from heaters, direct sunlight and other heat
sources.

CAUTION

Beware of the weight (open loop control unit: approximately 12 kg; sampling probe up to
approximately 22 kg) of the instrument and the probe. Do not attempt to carry the instrument and
probe without assistance. Use only suitable lifting devices for the transport.

12

Installation

3.1 Mechanical installation

Figure 3 Dimensions (in mm)

1 Suspension points 3 Wood screw, 5 x 40 (3×)
2 Fixing point 4 Nylon plug, 8 x 40 (3×)

13

Installation

Figure 4 Installation overview

1 SIGMATAX 2 open loop control unit 4 Mounting attachment 7 SIGMATAX 2 sampling probe
2 Connection tube (10–30 m) 5 Base 8 Direction of flow
3 Retaining clamp 6 Mounting pipe, 2 m (78.7 in)

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14

Installation

3.1.1 Install the sampling probe

Installation with rim mounting LZX414.00.00000

Figure 5 Base and mounting attachment

1 Express anchor 3 Mounting attachment
2 Base 4 Cylinder-head screw, M8 × 40 (4×)

15

Installation

Installation using pole mount LZX414.00.00000

Figure 6 Sampling probe and mounting pipe

NOTICE

When carrying out an installation variant that deviates from this example, make sure that the
connection tube from the sampling probe is guided vertically upward for at least 0.5

m (19.6 in).

1 Mounting pipe, 2 m (78.7 in) 3 Retaining clamp
2 EPDM flat seal 4 Cylinder-head screw, M5 × 20 (3×)

16

Installation

3.1.2 Second mounting point and extension pipe

Figure 7 Second mounting point LZX456

1 Mounting pipe, 2 m (78.7 in) 3 Retaining clamp
2 EPDM flat seal 4 Cylinder-head screw, M5 × 20 (3×)

17

Installation

Figure 8 Installation with extension pipe.

NOTICE

When carrying out an installation variant that deviates from this example, make sure that the
connection tube from the sampling probe is guided vertically upward for at least 0.5

m (19.6 in).

1 Mounting pipe, 2 m (78.7 in) 4 Retaining clamp
2 EPDM flat seal 5 Cylinder-head screw, M5 × 20 (3×)
3 Extension pipe

18

Installation

3.1.3 Install the open loop control unit

Make sure that an area of 5 cm is kept free around the entire instrument to enable air to
circulate (distance from the wall of the building, cable channel etc.).

NOTICE

Install the open loop control unit in a dry location out of direct sunlight.

NOTICE

The Teflon sample lines must be laid without sharp bends. Shortening or extending the lines will
lead to problems when the samples are transported.

Each process instrument must have a separate drain tube!
The individual device drains may only be combined in a larger drain pipe with regular water

throughput.

19

Installation

Figure 9 Open loop control unit and process instrument

1 SIGMATAX 2 open loop control unit 5 Separate drain pipe for process

instrument

9 Drain tube for process instrument

2 Fiber optic cable to the process

instruments

6 SIGMATAX 2 connection tube 10 SIGMATAX 2 drain tubes

3 PHOSPHAX sigma or TOCTAX 7 SIGMATAX 2 mains connection

cable

4 Shared drain pipe 8 Teflon sample line

20

Installation

3.1.4 Prepare the connection tube

Figure 10 Connection tube

DANGER

The pipe trace heater in the connection tube is operated at 230 V. If any damage occurs to the
tube casing, the entire system must be taken out of operation immediately.

1 Protective tube 3 Connection tube
2 Heat-shrink tube 4 PG 16 screw connection

21

Installation

3.1.5 Connect the connection tube

Figure 11 Connections for connection tube and drain tubes

1 Air hose (drain valve), Ø 3 mm

(0.11 in)

4 Electrical connection cable for the

pipe trace heater

7 Overflow drain tube

2 Air hose, Ø 5 mm (0.19 in) 5 Connection tube from the sampling

probe

8 Drain fitting

3 Sample tube 6 Drain tube for storage vessel

22

Installation

3.2 Electrical installation

3.2.1 Connect the pipe trace heater and fault indication contact

NOTICE

Protect the instrument from extreme temperatures from heaters, direct sunlight and other heat
sources.

WA RN IN G

Electrical and fire hazards. Use only the supplied power cable.
Only qualified experts may perform the tasks described in this section of the manual, while

adhering to all locally valid safety regulations.

NOTICE

Use only earthed sockets for the connection of this device to the power supply.
If you are not sure if the sockets are earthed, have this checked by a qualified electrician.
The power plug serves in addition to the power supply to isolate the device quickly from the

mains where necessary.
The entire measurement system has two power plugs (measurement device and open loop

control unit).
During the disconnection from the power source it must be made sure that the correct power plug

is pulled (for example by labeling the sockets).
This is recommended for long-term storage and can prevent potential dangers in the event of a

fault.
Therefore make sure that the sockets to which the device is connected are easy to reach by each

user at all times.

NOTICE

Pull out power plug before the opening of the device.

WA RN IN G

The electrical connection for the pipe trace heater must be carried out by a specialist electrician.

NOTICE

If the mains plug·of the power connection cable·is removed and replaced by hard wiring, then in
immediate proximity of the display unit a suitable double-pole one-way circuit breaker with clear
labeling for the power supply must be installed.

All connected signal connection lines must be shielded.

23

Installation

Figure 12 Terminal assignment

1 Connection cable for pipe trace heater 3 Connection terminals for heater

(N, L = terminals 8 + 9 from the top)

2 Fault indication contact (circuit diagram shows contact

during a fault indication)
Open 1/2, closed 2/3

4 Connection terminal for earth conductor

NOTICE

Route the signal lines (1, 2, 3) separated from the power cable.

24

Installation

3.2.2 Connect the fiber optic cable

Figure 13 Fiber optic cable connection

3.3 Internal tubing

1. Carefully screw the level indicator tube (1) and O-ring (2) into the cover (3) from

below.

2. Connect the sampling line (5) to the sampling pipe (4). Then insert the sampling pipe

all the way into the cover through opening 3 or 4.

Note: Fragile glass components

3. Lubricate the rubber seal of the ultrasound transducer (9) with Baysilone paste.

4. Attach the ultrasound transducer (9) to the sample storage vessel using the two

cross-head screws (10). Install the ultrasound transducer in line with the illustration
(cable "upward").

5. Connect the pressure sensor line (7) and insert the sample delivery line (8) 1 cm

(0.39

in) through the central opening in the cover.

1 Fiber optic cable for SIGMATAX 2 with PG screw

connection

3 Knurled-head screw for opening the front panel

2 Blind plug for fiber optic cable PG screw connection

(PHOSPHAX sigma or TOCTAX)

4 Fiber optic cable connection

25

Installation

Figure 14 Sample storage ve ssel

1 Level indicator pipe 5 Sample tube 9 Ultrasound transducer
2 O-ring 6 Connection cable for ultrasound

transducer

10 Cross-head screw, M4 × 16 (2×)

3 Sample storage vessel cover with

O-ring compression fittings

7 Pressure sensor line

4 Small sample pipe 8 Sample tube

26

Installation

27

Section 4 Start Up

After the sampling probe and control unit have been fully installed and all lines have been
connected (connection tube, sampling and drain tubes, fiber optic cables), the mains plug
can be plugged in.

If there is a risk of freezing, switch on the pipe trace heater!

Figure 15 Plug in the power plug

WA RN IN G

The pipe trace heater in the connection tube is operated at 230 V. If any damage occurs to the
tube casing, the entire system must be taken out of operation immediately.

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28

Start Up

29

Section 5 Operation

5.1 Operation

All instrument functions are controlled by the software. The instrument is operated via
menus using four keys that are located below the display. From operational mode, you can
access the first menu level by pressing the function keys, F1 to F4, for 3 seconds.

The functions of the keys in the individual menus may vary, and are therefore shown
(abbreviated clearly) in the second row of the display (softkey function).

Figure 16 Display and keypad

1 Time remaining for current process 4 Operational status of heater

("H" visible = heater active)

7 Go back to previous menu item

2 Current status message 5 Cancel 8 Go to next menu item
3 Operational status of ultrasound

("U" visible = ultrasound active)

6 Setting change

30

Operation

5.2 Menu overview

Menu level 1 Menu level 2 Menu level 3 Description

+SETTINGS
for parameterizing the
instrument

Language Option to select the language for the menus

HEATER Self-adjusting pipe trace heater —

turn on if there is a risk of freezing!

Interval

Time interval (6–60 minutes) between
2

samples.

An interval > 12 minutes is only necessary for
longer analysis periods

Probe type

Length of connection tube (10–30 m
(393.7–1181.1

in)

Contrast

Reading angle (0–30) of the display;
temperature dependent

press. indic.

Pressure display on the screen; can be
switched off

Version Instrument type and program version

+OUTPUT TEST
for testing
connected
data cables

error indication

Switches on the potential-free fault indication
contact for 2

seconds

The fault indication contact is only held in
the previous position for as long as the
user activates it for testing purposes.

fiber optic 1

Blanks fiber optic cable 1 for 1 second

fiber optic 2

Blanks fiber optic cable 2 for 1 second

OF output 2
+SERVICEMENU
for maintenance tasks
and functional tests

+INSPECTION:
SIGMATAX switches to
service mode

clean.samp. tube

Cleans the sample tube (assisted by the
program)

cleaning probe

Cleans the sampling probe (assisted by the
program)

blowing probe

Automatically cleans the sampling probe with
air

blowing valve Automatically cleans the drain valve with air

+FUNCTIONSTEST
SIGMATAX switches
to service
mode

compressor Activates compressor for 30 seconds

probe valve

Automatically open and close the
probe valve

ultrasonic

Takes a new sample and activates
ultrasound for 30 seconds

drain valve

Automatically opens and closes the drain
valve

+ERROR STATUS

filling error Counter for filling errors that have occurred

delivery error Counter for delivery errors that have occurred

error reset Reset the counters to "0"

31

Operation

5.3 Important instrume nt settings

5.3.1 Switch on the heater

1. Press one of the function keys, F1 to F4, for 3 seconds.

2. Open the +SETTINGS menu by pressing F2.

3. Press F4 to scroll to the [heating] menu item

4. Select this menu item by pressing F2.

5. Switch the heater on or off by pressing F3 or F4.

6. Confirm by pressing F2 and exit this menu level by pressing F1.

5.3.2 Set the processing interval

1. Press one of the function keys, F1 to F4, for 3 seconds.

2. Open the +SETTINGS menu by pressing F2.

3. Press F4 twice to scroll to the [interval] menu item.

4. Select this menu item by pressing F2.

5. Set the desired interval by pressing F3 and F4.

6. Confirm by pressing F2 and exit this menu level by pressing F1.

5.3.3 Set the display contrast

1. Press one of the function keys, F1 to F4, for 3 seconds.

2. Open the +SETTINGS menu by pressing F2.

3. Press F4 four times to scroll to the [contrast] menu item.

4. Select this menu item by pressing F2.

5. Set the desired contrast by pressing F3 and F4.

6. Confirm by pressing F2 and exit this menu level by pressing F1.

5.3.4 Switch on the pressure display

1. Press one of the function keys, F1 to F4, for 3 seconds.

2. Open the +SETTINGS menu by pressing F2.

3. Press F4 five times to scroll to the [press indic.] menu item.

4. Select this menu item by pressing F2.

5. Switch the pressure indicator on or off by pressing F3 or F4.

6. Confirm by pressing F2 and exit this menu level by pressing F1.

STATUS U O

Open the probe 0 to minimum –0.5 bar –

Close the probe 0 to minimum 1.3 bar –

Deliver the sample > 1.6 bar 10–16

Empty the probe 0.1–0.5 bar –

32

Operation

5.3.5 Access service mode

1. Press one of the function keys, F1 to F4, for 3 seconds.

2. Press F4 twice to scroll to the [+SERVICEMENU] menu.

3. Press F2 to open this menu.

4. When the [+INSPECTION] or [+FUNCTION TEST] menus are selected, the system

automatically switches to service mode.

Service mode means that:

• The instrument is no longer in operational mode

• The sampling probe and sample storage vessel are empty

• The system is depressurized

• The sampling probe is closed

• The fault indication contact remains in the last valid position

• The instrument will not switch back automatically to operational mode

33

Section 6 Maintenance

The manufacturer recommends that an inspection contract be concluded. This contract
extends the warranty period to 5 years and makes sure that all inspection and
maintenance tasks are carried out by qualified experts.

Maintenance tasks for users are limited to regular visual inspections and, if necessary,
cleaning procedures.

Maintenance schedule DOC273.72.04008.MRZ03

Type of
device:

◦ 10 m ◦ 20 m ◦ 30 m Instrument number:

Commissioning on: by:

Annually:

Seal membrane on relief valve

Every 1.5 years:

Replace compressor

Every 3 months:

Clean supply lines and
sampling probe (interior)

Test pressure

Every 6 months:

Replace valve piston with seal
kit

Heat if there is a risk of
freezing!

Weekly:

Clean sample storage vessel

Visually inspect sample quality

Every 1–4 weeks:

Check/clean sampling probe

Clean sample tube
(semi-automatic)

34

Maintenance

6.1 Maintenance tasks

6.1.1 After 1–4 weeks (as necessary)

Clean the sample tube

1. In the [+SERVICEMENU] menu, open the [+INSPECTION] submenu and the

[clean.samp. tube]menu item.

2. The individual steps are specified here and carried out with the support of the

program (see table).

DANGER

Potential dangers with contact with chemical/biological substances.
Working with chemical samples, standards and reagents is linked with dangers.
Make yourself familiar with the necessary safety procedures and the correct handling of the

chemicals before the work and read and follow all relevant safety data sheets.

WA RN IN G

Before handling these substances observe all danger notes and safety information printed on the
containers of the original solutions and in the safety data sheet.

Dispose of all consumed solutions in accordance with the national regulations and laws.
Select the type of protective equipment suitable to the concentration and quantity of the

dangerous material being used.

Display text Description/action

clean. samp. tube Begin the cleaning tasks supported by the program for the sample tube; start

by pressing F4

clean. samp. tube Confirmation prompt; confirm by pressing F4

cleaning glass inserted? Replace the sample storage vessel with the cleaning vessel, which contains

chlorine bleach (sodium hypochlorite), and confirm by pressing F4.

sample tube advanced? Feed the sample tube through to the base of the cleaning vessel and confirm

by pressing F4.

opening probe cleaning
emptying probe cleaning
affecting
tube xx sec
please wait xx sec

The cleaning solution is automatically sucked in for 60 seconds. In the
meantime, the sample storage vessel can be cleaned using a paper towel
and, if necessary, a little window cleaning solution or diluted hydrochloric
acid.

sample glass inserted? Insert the sample storage vessel again and confirm by pressing F4

sample tube retracted Retract the sample tube and confirm by pressing F4

from cleaning to At this point, it is possible to choose whether SIGMATAX calls up the

[+SERVICEMENU] menu and remains in SERVICE mode, or whether it
switches to operational mode.

Test/maint Operation

opening probe cleaning
emptying probe cleaning
filling probe cleaning
closing probe cleaning
deliv. sample cleaning
emptying sample tube cleaning

The program runs through an automatic rinsing function to remove the
residual cleaning solution by repeatedly filling and emptying the system.

[+SERVICEMENU] or operation Status after rinsing is complete

35

Maintenance

6.1.2 1×/month (or as necessary)

Clean the sampling probe

1. In the [+SERVICEMENU] menu, open the [+INSPECTION] submenu and the

[cleaning probe] menu item.

2. The individual steps are specified here and carried out with the support of the

program (see table).

DANGER

Potential dangers with contact with chemical/biological substances.
Working with chemical samples, standards and reagents is linked with dangers.
Make yourself familiar with the necessary safety procedures and the correct handling of the

chemicals before the work and read and follow all relevant safety data sheets.

WA RN IN G

Before handling these substances observe all danger notes and safety information printed on the
containers of the original solutions and in the safety data sheet.

Dispose of all consumed solutions in accordance with the national regulations and laws.
Select the type of protective equipment suitable to the concentration and quantity of the

dangerous material being used.

Display text Description/action

cleaning probe Begin the cleaning tasks supported by the program for the sampling probe;

start by pressing F4

cleaning probe Confirmation prompt; confirm by pressing F4

probe in clean.solution? Immerse the sampling probe in a bucket containing cleaning solution (rinsing

agent) and confirm by pressing F4

pressure comp.
opening probe cleaning
emptying probe cleaning
filling probe cleaning
closing probe cleaning

The sampling probe is automatically filled with cleaning solution.

was probe shaken?

You can assist the cleaning process mechanically. To do this, simply shake
the probe and confirm by pressing F4

opening probe cleaning
emptying probe cleaning
closing probe cleaning

The sampling probe empties automatically and rinses the removed solids out
into the bucket with the cleaning solution.

probe back in basin? Immerse the sampling probe again at the sampling location and confirm by

pressing F4

from cleaning to At this point, it is possible to choose whether SIGMATAX calls up the

[+SERVICEMENU] menu and remains in SERVICE mode, or whether it
switches to operational mode.

Test/maint Operation

opening probe cleaning
emptying probe cleaning
filling probe cleaning
closing probe cleaning

The program runs through an automatic rinsing function, filling and emptying
the system to remove the residual cleaning solution.

[+SERVICEMENU] or operation Status after rinsing is completed

36

Maintenance

37

Section 7 Troubleshooting

As soon as a fault leads to an interruption in operation, SIGMATAX 2 immediately
switches to service mode. Corresponding error messages are shown both on the
SIGMATAX 2 display and on the displays of the connected process photometers.

Service mode means that:

• The instrument is no longer in operational mode

• The sampling probe and sample storage vessel are empty

• The system is depressurized

• The sampling probe is closed

• The fault indication contact is held in the last valid position

• The instrument will not return automatically to operational mode

Error message Possible cause Measures

delivery error Sample line clogged

Select [clean.samp. tube]and carry out a full clean; if
necessary, blow air through the sample line using the
compressor. Inspect the upper level indication sensor.

Check the compressor in the [+FUNCTIONTEST]
menu

filling error Probe valve clogged

Remove probe, extract blockages and inspect the
probe valve and drain valve.

Sensor error Internal electrical cause Call customer service.

38

Troubleshooting

39

Section 8 Replacement parts and accessories

8.1 Product contents

Description Cat. No

Control unit LXV215

10 m (393.7 in) connection tube + sampling probe LXV231

20 m (787.4 in) connection tube + sampling probe LXV232

30 m (1181.1 in) connection tube + sampling probe LXV282

Storage vessel LZX394

Drain fitting LZX389

Maintenance schedule HDF 167

Cleaning vessel LZX397

2× drain tube 2 m (78.7 in) LZX278

Screw set LZX355

Lid for sample storage vessel with level indicator pipe

Sampling pipe

PG 16 screw connection

Works test certificate

User manual

8.2 Further accessories

Description Cat. No

Pole mount for the probe LZX414.00.00000

User manual BDA361

Second mounting point (for vibrations) LZX456

8.3 Replacement and wear parts

Description Cat. No

230 V membrane compressor (for approximately 1,5 years) LZX376

Sample storage vessel LZX394

Valve piston LZX267

Wear part set for probe valve (for approximately 6 months) LZX306

Complete drain valve LZX266

Complete air filter LZX300

Air filter without fittings (for approximately 12 months) LZX299

Sample storage vessel lid LZX381

Accessory set for lid of sample container vessel LZX385

Maintenance schedule HDF167

Sampling nozzle (inside the probe) LZX271

Filter for air outlet LZX295

Level indicator pipe with O-ring LZX386

Complete probe valve LZX269

Straight sampling pipe LZX305

Bent sampling pipe LZX293

Sampling vessel (probe body) LZX294

Sample tubes 1.5 m (59 in) and 2 m (78.7 in) LZX275

Cleaning vessel LZX397

40

Replacement parts and accessories

Probe line 10 m (393.7 in) LZX393

Probe line 20 m (787.4 in) LZX398

Probe line 30 m (1181.1 in) LZX411

Bottom overflow fitting LZX388

Complete ultrasound transducer LZX284

8.3 Replacement and wear parts

Description Cat. No

41

Section 9 Warranty and liability

The manufacturer warrants that the product supplied is free of material and manufacturing
defects and undertakes the obligation to repair or replace any defective parts at zero cost.

The warranty period for instruments is 24 months. If a service contract is taken out within
6 months of purchase, the warranty period is extended to 60 months.

With the exclusion of the further claims, the supplier is liable for defects including the lack
of assured properties as follows: all those parts that, within the warranty period calculated
from the day of the transfer of risk, can be demonstrated to have become unusable or that
can only be used with significant limitations due to a situation present prior to the transfer
of risk, in particular due to incorrect design, poor materials or inadequate finish will be
improved or replaced, at the supplier's discretion. The identification of such defects must
be notified to the supplier in writing without delay, however at the latest 7 days after the
identification of the fault. If the customer fails to notify the supplier, the product is
considered approved despite the defect. Further liability for any direct or indirect damages
is not accepted.

If instrument-specific maintenance and servicing work defined by the supplier is to be
performed within the warranty period by the customer (maintenance) or by the supplier
(servicing) and these requirements are not met, claims for damages due to the failure to
comply with the requirements are rendered void.

Any further claims, in particular claims for consequential damages cannot be made.

Consumables and damage caused by improper handling, poor installation or incorrect use
are excluded from this clause.

The manufacturer process instruments are of proven reliability in many applications and
are therefore often used in automatic control loops to provide the most economical
possible operation of the related process.

To avoid or limit consequential damage, it is therefore recommended to design the control
loop such that a malfunction in an instrument results in an automatic change over to the
backup control system; this is the safest operating state for the environment and the
process.

42

Warranty and liability

HACH COMPANY World Headquarters

P.O. Box 389, Loveland, CO 80539-0389 U.S.A.
Tel. [phone]
[phone] (U.S.A. only)
Fax [phone]
[email protected]
www.hach.com

HACH LANGE GMBH

Willstätterstraße 11
D-40549 Düsseldorf, Germany
Tel. [phone]
Fax [phone]
[email protected]
www.de.hach.com

HACH LANGE Sàrl

6, route de Compois
1222 Vésenaz
SWITZERLAND
Tel. [phone]
Fax [phone]

© Hach Company/Hach Lange GmbH, 2003, 2012, 2018

. All rights reserved. Printed in Germany 05/2018, Edition 3