SIGRIST AquaScat 2 P User manual

Document number: 11838E
Version: 2
Valid from: V 126
Instruction Manual
AquaScat 2 P
Turbidimeter with closed flow cell

Copyright© SIGRIST-PHOTOMETER AG, subject to technical changes without notice 4/2018
SIGRIST-PHOTOMETER AG
Hofurlistrasse 1
CH-6373 Ennetbürgen
Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.photometer.com

Instruction Manual AquaScat 2 P
11838E/2 i
Content
1. General notes to the user ...................................................................................... 1
1.1. Purpose of the Instruction Manual................................................................. 1
1.2. Target group .............................................................................................. 1
1.3. Additional documentation............................................................................ 1
1.4. Copyright stipula tions .................................................................................. 1
1.5. Storage location of the Instruction Manual ..................................................... 1
1.6. Meaning of the safety symbols ..................................................................... 2
1.7. Meaning of the safety pictograms ................................................................. 2
1.8. Proper use .................................................................................................. 3
1.9. User requirements ....................................................................................... 3
1.10. Conformity................................................................................................. 3
1.11. Use restrictions ........................................................................................... 3
1.12. Dangers when not used properly .................................................................. 3
2. Instrument overview ............................................................................................. 4
2.1. Measuring station with optional accessory parts ............................................. 4
2.2. Designation of the AquaScat 2 P................................................................... 5
2.3. Scope of supply and accessory parts .............................................................. 6
2.4. Technical data ............................................................................................ 7
3. General safety pointers.......................................................................................... 9
3.1. What to do in an emergency ........................................................................ 9
3.2. Dangers when using properly ......................................................................10
3.3. Warning and danger symbols on the instrument............................................11
4. Mounting the measuring device ............................................................................12
4.1. Location evaluation ....................................................................................12
4.2. Mechanical mounting of the photometer......................................................12
4.3. Mounting the docking station .....................................................................14
4.4. Mounting the sample connections ...............................................................14
4.5. Mounting the optional flow meter ...............................................................15
5. Electrical installation.............................................................................................16
5.1. Safety pointers for the installation ................................................................16
5.2. Installation procedure .................................................................................17
5.3. Connecting the customer connections ..........................................................18
5.4. Connection of the optional mains device ......................................................20
6. Initial start-up......................................................................................................22
7. Operation ...........................................................................................................24
7.1. Operation basics ........................................................................................24
7.2. Control components in measuring operation.................................................24
7.3. Activating and deactivating the screen lock ...................................................29
7.4. Display in measuring operation ....................................................................30
7.5. Switching to service operation .....................................................................31
7.6. Control components in service operation ......................................................32
7.7. Setting the operating language ....................................................................35
7.8. Setting the current outputs .........................................................................36
7.9. Setting the limits ........................................................................................37
7.10. Configuring the flow meter.........................................................................39
7.11. Setting the outputs (relay outputs 1/2)..........................................................40
7.12. Setting the date and time............................................................................41
7.13. Setting or changing the access code.............................................................42
7.14. Back up configured data .............................................................................42
8. Servicing .............................................................................................................43
8.1. Servicing schedule ......................................................................................43
8.2. Fasten photometer to docking station ..........................................................44

Instruction Manual AquaScat 2 P
ii 11838E/2
8.3. Remove the measuring cell unit ...................................................................46
8.4. Replace desiccant.......................................................................................47
8.5. Manual adjustment ....................................................................................49
8.6. Check and clean optional accessory parts......................................................52
8.7. Clean the closed measuring cell ...................................................................52
8.8. Change battery ..........................................................................................54
9. Troubleshooting ..................................................................................................55
9.1. Pinpointing the cause of a malfunction .........................................................55
9.2. Replace fine-wire fuse.................................................................................55
9.3. Warning and error messages .......................................................................56
10. Customer service information................................................................................60
11. Decommissioning & storage ..................................................................................61
12. Packaging & transport ..........................................................................................62
13. Disposal..............................................................................................................63
14. Spare parts .........................................................................................................64
15. Appendix............................................................................................................64
15.1. Measuring cell plate with control unit...........................................................65
15.2. Servicing log ..............................................................................................67
16. Index..................................................................................................................70
Glossary –terms used in this document
Please refer to our website for specialist terms: www.photometer.com

General notes to the user Instruction Manual AquaScat 2 P
11838E/2 1
1. General notes to the user
1.1. Purpose of the Instruction Manual
This Instruction Manual provides the user with helpful information about the entire life cycle
of the photometer and control unit. Please read through it completely before putting the in-
strument into operation.
1.2. Target group
The Instruction Manual is intended for all persons who are responsible for the operation and
maintenance of the instrument.
1.3. Additional documentation
DOC. NO.
TITLE
CONTENT
11841E
Brief Instructions
The most important functions and com-
plete menu structure.
11780E
Reference Manual
More sophisticated menu functions and
worksteps for advanced users.
11880E
Data sheet
Descriptions and technical data about
the photometer.
11840E
Service Manual
Repair and conversion instructions for ser-
vice engineers.
11888DEF
AquaScat 2 P declaration of
conformity
Compliance with the underlying directives
and standards.
10718DEF
Declaration of conformity
SP-C039 (mains device)
Declaration of conformity
SP-C039 (mains device).
1.4. Copyright stipulations
The Instruction Manual has been written by SIGRIST-PHOTOMETER AG. Copying or modify-
ing the content or providing this document to third parties is permitted only with the express
written consent of SIGRIST-PHOTOMETER AG.
1.5. Storage location of the Instruction Manual
The Instruction Manual is a component of the product and should always be close at hand.
The most recent version (in color) of the Reference Manual can be downloaded at
www.photometer.com (one-time registration).
It can also be ordered from our representative in your country. Section 10

Instruction Manual AquaScat 2 P General notes to the user
2 11838E/2
1.6. Meaning of the safety symbols
Below is an explanation of all danger symbols that occur in this Instruction Manual.
Danger due to electrical shock that may result in serious bodily injury or death.
Non-observance of this danger warning may lead to electrical shocks or death.
Danger due to explosion that may result in serious bodily injury or death.
Non-observance of this notice may cause explosions resulting in serious material damage and
death.
Warning about bodily injury or hazards to health with long-term effects.
Non-observance of this warning may lead to injuries with possible long-term effects.
Notice about possible material damage.
Non-observance of this notice may cause material damage to the instrument and its periph-
erals.
1.7. Meaning of the safety pictograms
Below is an explanation of all pictograms that occur in this Instruction Manual.
Additional information about the current topic.
Practical procedures when working on the photometer.
Manipulations on the touchscreen.
Work on the PC.
Fold-out, additional help.
DANGER!
EXPLOSION
HAZARD!
WARNING!
CAUTION!

General notes to the user Instruction Manual AquaScat 2 P
11838E/2 3
1.8. Proper use
The AquaScat 2 P is designed for measuring turbidity during water treatment and is opti-
mized for the values that occur in water treatment plants with regard to measurement span
and environmental conditions.
1.9. User requirements
The instrument may be operated only by trained technical personnel.
The instrument may be operated only by persons who have read and understood the
content of the Instruction Manual.
1.10. Conformity
Current technological principles were followed in designing and manufacturing the photo-
meter. They comply with the applicable guidelines concerning safety and duty to take due
care.
The system meets the requirements applicable within the European Union (EU) for electro-
magnetic compatibility (EMC) and low voltage directives (LVD) and has the CE mark.
Please refer to the separate declaration of conformity for details (document 11888DEF).
1.11. Use restrictions
Explosion hazard during operation in an inappropriate environment.
It is not permitted to operate the instrument in explosion hazardous areas or rooms.
It is not permitted to use the instrument with explosive sample substances.
1.12. Dangers when not used properly
Operation when not used properly.
Improper use can cause injuries to persons, process -related consequential damage and dam-
age to the photometer and its peripherals.
In the following cases the manufacturer cannot guarantee the protection of persons and the
instrument and therefore assumes no legal responsibility:
The instrument is used in a way not included in the described area of application.
The instrument is not properly mounted.
The instrument is not installed in accordance with the Instruction Manual.
The instrument has been operated with accessory parts which SIGRIST -PHOTOMETER
AG has not expressly recommended.
Improper changes to the instrument have been performed.
The instrument has not been operated within the specifications, in particular concern-
ing pressure and temperature.
EXPLOSION
HAZARD!
DANGER!

Instruction Manual AquaScat 2 P Instrument overview
4 11838E/2
2. Instrument overview
2.1. Measuring station with optional accessory
parts
Figure 1: Measuring station with optional accessory parts

Photometer with closed measuring cell
Section 2.3 / 2.4

Sample outlet Section 4.4

Flow regulator (customer side)

Drain hose (customer supply)

Non-return valve type
(customer supply and according to EN
13959)

Connection hoses (customer sup-
ply and according to EN 13618 or
EN 61770)

Flow meter with/without limit switch
(optional)

Sample inlet Section 4.4

Docking station Section 8.2


Instrument overview Instruction Manual AquaScat 2 P
11838E/2 5
2.2. Designation of the AquaScat 2 P
The photometer is fitted with a rating plate:
Figure 2: Rating plate on the AquaScat 2 P

Manufacturer

Country of origin

Product name

Serial number

Date of manufacture

Service voltage

Frequency range

Power

Observe the Instruction Manual

Disposal information Section 13

Instruction Manual AquaScat 2 P Instrument overview
6 11838E/2
2.3. Scope of supply and accessory parts
PCS.
ART.
NO.
NAME
VIEW
VARIANT
1
118995
AquaScat 2 P 24
VDC
Photometer incl.
docking station
PCS.
ART. NO.
NAME
VIEW
VARIANT
1
Instruction Manual
German 11838D
English 11838E
French 11838F
1
Reference Manual
German 11780D
English 11780E
1
Brief Instructions
German 11841D
English 11841E
French 11841F
PCS.
ART. NO.
NAME
VIEW
VARIANT
1
120159
Flow meter
(with connections
D=16 mm)
Section 2.1
1
120161
Flow meter with limit
switch (Connections
D = 16 mm)
Section 2.1
1
120160
Flow meter with flow
regulator (connections
D=16mm)
Section 2.1
1
120162
Flow meter with limit
switch and flow regu-
lator (connections
D=16mm)
Section 2.1
1
119466
Flow regulator with
connections D=16mm
Section 2.1
1
116706
Checking unit for
AquaScat 2 P
Section 8.5
Scope of supply
Documentation
Optional accessory
parts

Instrument overview Instruction Manual AquaScat 2 P
11838E/2 7
PCS.
ART. NO.
NAME
VIEW
VARIANT
1
119102
Profibus DP bus cou-
pler
Reference Manual
1
119103
Modbus RTU bus cou-
pler
Reference Manual
1
119041
Module for 4 x current
outputs
1
119045
24 VDC mains device
20 W IP66, input 100-
240 VAC
1
119082
I/O module
1
119081
Ethernet cable for
fixed installation IP66
2.4. Technical data
TURBIDITY
MEASUREMENT
VALUES
Measuring principle
Scattered light measurement
Measurement span
0 .. 100 FNU
Sample media
Water
Wavelength
880 nm, compliant with DIN EN ISO 7027
Radiation class
LED device of Class 1 according to EN 60825-1
Measuring angle
90°
AQUASCAT 2 P
VALUES
Resolution
0.001 FNU
Reproducibility
0-10 FNU: ±0.002 FNU, or ±1% full scale
10-100 FNU: ±1.5%
Repeatability
0.001 FNU or ±0.1% full scale
Service voltage
18-30 VDC

Instruction Manual AquaScat 2 P Instrument overview
8 11838E/2
AQUASCAT 2 P
VALUES
Power consumption
8 W
Curr. outputs
2 x 0/4 .. 20 mA, galvanically isolated to max. 50 V relative
to ground, max. 600 burden
Digital input
Contact
Analog inputs
2 x 0/4 .. 20 mA
Relay contacts
2 relay contacts 250 V, 4 A
Control unit
Integrated control unit
Measuring ranges
8 ranges between 0 .. 0.1 and 0 .. 100 FNU freely configura-
ble
Housing
Plastic (ABS)
Dimensions
For detailed dimension sheet see Section 15
Weight
Approx. 3.6 kg
Protection degree
IP65
Maximum operating altitude
3,000 m above sea level for instruments which are not oper-
ated with low voltage (mains, relays).
Ambient temperature
0 .. 50°C
Ambient humidity
0 .. 95% rel. humidity, non-condensing
Interface
Ethernet, SD card (for logging, SW update, diagnostics)
Modbus TCP, optional Modbus RTU, Profibus DP
Terminal size for signal cable
Cable holder for Ø of 0.08 mm2to 1.5 mm2
Display
¼ VGA with touchscreen
Resolution: 320 x 240 pixels with 3.5” diagonal
MEASURING CELL
VALUES
Material
POM/PVC
Sample flow
0.2 .. 2 l/min.
Connections
Hose supports: 16 mm
GF System: Outer threads G3/4”
Sample pressure / tempera-
ture
Permitted working range

General safety pointers Instruction Manual AquaScat 2 P
11838E/2 9
3. General safety pointers
3.1. What to do in an emergency
What to do in an emergency:
SIGRIST-PHOTOMETER AG instruments have no On/Off switch. This is the responsibility of
the customer. Before commissioning, clarify the following points:
Clarify the position of the On/Off switch and the way it works.
Where and how the sample supply can be stopped.
Who the responsible authorities are.
MEASURE
NOTES
1.
Interrupt the service voltage to the
measuring station.
2.
Interrupt sample supply.
3.
Secure emergency site.
4.
Notify responsible institution.
CAUTION!
PROCEDURE IN
AN
EMERGENCY!

Instruction Manual AquaScat 2 P General safety pointers
10 11838E/2
3.2. Dangers when using properly
Electrical shock due to damaged instrument or cabling.
The instrument may be operated only when the cables are undamaged.
The instrument may be operated only if it has been properly installed or repaired.
Life threatening voltage inside the instrument.
The instrument must never be operated when the front cover is removed.
The instrument may be opened only by trained personnel.
Damage due to incorrect service voltage.
The instrument may be connected only to voltage sources as specified on the rating plate.
Property damage due to escaping sample.
The instrument must never be connected to leaking sample tubes and operated.
Damage to the touchscreen due to strong mechanical pressure.
Do not apply excessive pressure to the touchscreen (touch lightly with your fingertip).
Do not use pointed objects for manipulations on the touchscreen.
Use of aggressive chemicals.
Do not use aggressive chemicals or cleaning agents when cleaning.
Thoroughly clean the instrument with a neutral cleaning agent if it has come into con-
tact with aggressive chemicals.
If the instrument changes hands, always include the Instruction Manual.
If the Instruction Manual is lost, you can request a replacement.
Registered users can download the current version at www.photometer.com.
According to the risk assessment of the applied safety directive DIN EN 61010-1, there re-
mains the risk of a faulty measuring value display. This risk can be reduced with the follow-
ing measures:
Use a flow meter to monitor the flow rate of the instrument.
Use an access code to prevent unauthorized persons from changing parameters.
Perform the specified servicing duties.
DANGER!
DANGER!
WARNING!
CAUTION!
CAUTION!
CAUTION!
CAUTION!

General safety pointers Instruction Manual AquaScat 2 P
11838E/2 11
3.3. Warning and danger symbols on the instru-
ment
There are no warning or danger symbols on the instrument.
Users must ensure that they observe the safety measures as specified in the Instruction Ma n-
ual at all times when working with the instrument and its peripheral equipment.
The following sections must be internalized:
Section 1.6
Section 1.8
Section 3
Observe local safety pointers when performing the described procedures .
WARNING!

Instruction Manual AquaScat 2 P Mounting the measuring device
12 11838E/2
4. Mounting the measuring device
4.1. Location evaluation
A note about selecting the right installation location:
The sample feed should be as short as possible so that changes in the reading are
displayed without delay.
There should be no vibrations on the mounting surface. Vibrations cause measuring
errors and can permanently damage the unit.
The photometer and peripheral equipment should be easily accessible to facilitate in-
spection and maintenance work.
Make sure that the photometer is not exposed to direct sunlight. This may cause sig-
nificant deviations in the measuring value.
4.2. Mechanical mounting of the photometer
Figure 3: Mounting the AquaScat 2 P

Fastening on the photometer

Mounting bracket on the wall

Support

Fixing nut
The dimensional specifications according to the mounting drawings in the Appendix must be
observed when mounting the photometer. Section 15

Mounting the measuring device Instruction Manual AquaScat 2 P
11838E/2 13
WORKSTEP
PROCEDURE
1.
Pre-mounting the mounting
bracket.
Screw on the mounting bracket (Figure 3, 2) horizontally
at the intended position.
2.
Fasten the photometer onto
the pre-mounted mounting
bracket.
2.1: Position the photometer on the pre-mounted
mounting bracket (Figure 3, 2) and pay attention to the
two positioning pins (arrows, see picture).
2.2: Screw the photometer onto the mounting bracket
(Figure 3, 2).
3.
Align the photometer.
3.1: Loosen the fixing nut (Figure 3, 4).
3.2: Adjust the support (Figure 3, 3) so that it contacts
the wall and relieves the load stress on the instrument
(Figure 3, 1).
3.3: Tighten the fixing nut (Figure 3, 4).

Instruction Manual AquaScat 2 P Mounting the measuring device
14 11838E/2
4.3. Mounting the docking station
Mount the docking station close to the photometer using two fastening screws.
Figure 1, 6
4.4. Mounting the sample connections
4.4.1. Important information when mounting the sample
connections
Observe the following points when mounting the sample connections:
Only an non-return valve type EA tested and certified according to EN 13959 must be
used.
Only hoses tested and/or certified according to EN 13618 or EN 61770 must be used.
All the hoses must be secured with clamping straps. Two weeks after mounting, all
the connections must be checked for leakage to avoid any air suction.
In order to ensure an accurate measurement of the turbidity, observe the following points
when mounting the sample connections:
A continuous water flow rate as specified in the technical data is required (Sec-
tion2.4). If the required water flow rate is exceeded or undershot, measuring errors
may occur!
Large drops in the pressure must not occur; if that happens, air bubbles may occur.
A regulator valve should always be used for adjusting the water flow rate and for
generating the counter pressure in the measuring cell on the sample outlet.
The use of transparent hoses is not permitted.
VORSICHT!

Mounting the measuring device Instruction Manual AquaScat 2 P
11838E/2 15
4.4.2. Attaching the sample connections
Figure 4: Inlet and outlet of the photometer

Sample inlet

Sample outlet
The inlet hose is fastened to the sample inlet (Figure 4, 1) and the drain hose is fastened to
the sample outlet (Figure 4, 2).
4.5. Mounting the optional flow meter
Note the following when connecting the optional accessory part:
All hose junctions have to be secured with hose clamps. The sealing of the junctions should
be checked about 2 weeks after installation to ensure that no air can be pulled in.
SIGRIST recommends installing a simple flow meter to regularly check the sample flow . 
Sections 2.1 and 2.3
Note the following points when mounting the flow meter:
The flow meter is to be fastened before the sample inlet of the photometer.
If the required water flow rate is exceeded or undershot, measuring errors may occur!
Installing a flow meter with limit contact improves this situation.
CAUTION!

Instruction Manual AquaScat 2 P Electrical installation
16 11838E/2
5. Electrical installation
5.1. Safety pointers for the installation
Life threatening voltage inside the instrument:
Connecting electrical lines is extremely dangerous. Parts of the system can also be damaged.
Local regulations must be observed at all times for electrical installations.
Further, the following basic principles must be observed:
It is imperative that the protective conductor is connected.
Because the instrument has no main switch, a suitable disconnection device (switch,
plug) should be installed near the service voltage. It must be designated and easily ac-
cessible.
The instrument box must not be charged with voltage until the installation is comple t-
ed and the front cover is mounted.
On instruments with an optional mains device, a back-up fuse with a max. tripping
current of 16 A must be present. The cables must be able to withstand this load.
If faults cannot be remedied, the unit must be put out of operation and protected
against inadvertent operation.
The installation and commissioning of the Modbus RTU and Profibus DP field bus interfaces
are described in the Reference Manual.
DANGER!