SIGRIST DualScat Ex User manual

INSTRUCTION MANUAL
DualScat Ex
SIGRIST
In-line Turbidimeter
with SIREL SMD/Ex
SIGRIST-PHOTOMETER AG
Hofurlistrasse 1
CH-6373 Ennetbürgen
Switzerland
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.photometer.com
Document No.: 10118E
Version: 5
Valid from: SN 450101

© SIGRIST-PHOTOMETER AG, Subject to change without notice 9/2016

Instruction Manual DualScat Ex
10118E/5 i
Contents
1Equipment Description...................................................................... 1
1.1 General view of measuring station 1
1.2 Scope of supply and accessories 1
1.3 Equipment purpose and conformity 2
1.4 Identification of the product 4
1.5 Technical data 6
2Safety Rules ................................................................................... 8
2.1 Symbols used 8
2.2 Rules for ensuring safe operation 8
3Installation/Start-up .........................................................................9
3.1 Installation 9
3.1.1 Photometer..................................................................9
3.1.2 Installation of the SIREL SMD Control unit...................... 10
3.1.3 Installation of the SIREL Ex control unit ......................... 11
3.2 Electrical connections 11
3.2.1 General information about connecting the SIREL SMD Ex . 11
3.2.2 Opening the SIREL SMD .............................................. 11
3.2.3 Opening the SIREL Ex housing ...................................... 12
3.2.4 Establish SIREL SMD/ Ex electrical connections............... 12
3.3 Initial start-up 15
4Operation ..................................................................................... 16
4.1 Operating elements and display SIREL SMD 16
4.2 Control components and display of the SIREL Ex 17
4.3 Normal operation 18
4.4 Service mode 18
4.5 Setting the national language 19
4.6 Setting the measuring range 20
4.7 Setting the relay functions 21
4.8 Setting the limits 23
4.9 Setting the access code 24
4.10 Additional possibilities 25
5Servicing ...................................................................................... 26
5.1 Service schedule 26
5.2 Replacement of desiccant in the Ex enclosure 26
5.3 Replacement of desiccant in the sensor head 28
5.4 Cleaning the sensor head 30
5.5 Replacing the O-ring 60 x 3 on the sensor head or replacing the
blanking glass / blanking plate 31
5.6 Recalibrating the photometer 32
5.6.1 Preparations for recalibration with the checking unit ........ 33
5.6.2 Preparations for recalibrating with formazine .................. 35
5.6.3 Recalibration procedure ............................................... 36
6Troubleshooting ............................................................................ 38
6.1 Pinpointing causes of trouble 38
6.2 Fault messages 39
6.3 Carrying out a sensor check 40
6.4 Customer service information 41
7Taking Out of Service/Storage ......................................................... 43

Instruction Manual DualScat Ex
ii 10118E/5
8Packing/Transport ......................................................................... 44
9Disposal ...................................................................................... 45
10 Spares......................................................................................... 46
11 Appendix ..................................................................................... 48
12 Index........................................................................................... 50

Instruction Manual DualScat Ex
10118E/5 iii
Foreword
This Instruction Manual describes the basic functions employed in operating
the DualScat Ex. It is addressed to all persons responsible for operation of the
instrument.
Operate the instrument only after familiarizing yourself with the content of the
Instruction Manual. In particular, study the section on safety rules very careful-
ly before you start operation.
Doc. No.
Title
Content
10121E
Brief Instructions
Most import ant functions and complete
menu structure
10119E
Reference Handbook
More sophisticated menu functions and
worksteps for advanced users
11766E
Data Sheet
Descriptions and technical data about the
instrument.
10120E
Service Manual
Repair and conversion instructions for ser-
vice technicians
11044E
SIREL Ex Instruction
Manual
Contains additional information about the
SIREL Ex control unit
Important information
Orientation aid
Supplementary information
Extremely dangerous voltage
Caution: danger of explosion (LIFE-THREATENING
DANGER)
Separate disposal of electrical and electronic equipment
Additional
Documentation
Symbols used

Instruction Manual DualScat Ex
iv 10118E/5

Instruction Manual DualScat Ex
10118E/5 1
1Equipment Description
1.1 General view of measuring station
Figure 1: General view DualScat Ex with SIREL SMD .
1.2 Scope of supply and accessories
Units
Name
Versions/Remarks
1
Photometer
Dual-angle 90°/25°, single-angle 90°,
single-angle 25°
1
Control unit, standard
or Ex version
SIREL SMD 100..240 VAC or
SIREL SMD 24 VDC
SIREL SMD Ex 100..240 VAC or
SIREL SMD Ex 24 VDC
1
Housing key (square
drive) for SIREL Ex
Only for SIREL Ex (118771)
1
Instruction Manual
1
Reference Handbook
Brief Instructions
Standard scope
of supply:
EX enclosure
Product pipe
Control unit
Example with
SIREL SMD
Connecting cable
Photometer
Cooling connection
(optional)

Instruction Manual DualScat Ex
2 10118E/5
Art. No.
Name
Versions/Remarks
119125
Blanking glass coated with
PVD-chrome, with EPDM
O-Ring
Lock ring inclusive. Check chemical
compatibility of the blanking glass
with medium.
or
118786
Blanking plate, sand blast-
ed with EPDM O-Ring
Lock ring inclusive. Check chemical
compatibility of the blanking plate
with medium.
Art. No.
Name
Versions/Remarks
113064
Checking unit with solid
reference
901800
Junction box
115637
Bus coupler netTAP
Profibus–DP
112952
Cooling system
Depends on medium temperature and
ambient temperature.
In-line enclosure
Various qualities and nominal widths
1.3 Equipment purpose and conformity
Incorrect use of the photometer, or use for purposes other than the intended
duty, can produce false measuring results with possible process-related dam-
age or damage to the photometer itself.
The control unit SIREL SMD and any peripheral components may not be in-
stalled or operated in explosive atmospheres.
If a SIREL Ex control unit is used, it is imperative to read manufacturer docu-
mentation 11044DEF beforehand.
The instrument is designed to measure turbidity in liquids which are in Zone 0
explosion hazard areas (Ex d IIC T3/T4/T5/T6 Ga/Gb).
Required
Accessories:
Optional
Accessories:
Intended duty

Instruction Manual DualScat Ex
10118E/5 3
The photometer complies with the following standards for electrical equipment
and for explosive atmospheres:
EN 60079-0:2012+A11:2013
General requirements
IEC 60079-0:2011
General requirements
EN 60079-1:2014
Instrument protection with pressure-proof
encapsulation “d”
IEC 60079-1:2014
Flameproof enclosure
EN 60079-26:2015
Operating materials with instrument protec-
tion level (EPL) Ga
European Directive
2014/34/EU
Table 1: Standards
The photometer possesses the following certification:
EC type examination certificate BVS 10 ATEX E 101 X
IECEx BVS 16.0054X
State-of-the-art engineering practice was followed in the design and manufac-
ture of the photometer. It complies with the generally accepted guidelines with
regard to safety and the exercising of due care.
The photometer and control unit comply with the electromagnetic compatibility
(EMC) requirements applicable within the European Union (EU) and with the
Low Voltage Guidelines (LVG), and it carries the CE mark.

Instruction Manual DualScat Ex
4 10118E/5
1.4 Identification of the product
Two labels are affixed to the control unit. The instrument number of the con-
trol unit is indicated on the back. The electrical connection data are given on
the sticker at the bottom left:
Figure 2: Labels for the serial number and the electrical connection data on the SIREL SMD.
Figure 3: Position of the SIGRIST rating plate on the SIREL Ex
X: Rating plate of the manufac-
turer SIREL Ex Instruction
Manual

Instruction Manual DualScat Ex
10118E/5 5
Figure 4: Photometer rating plate.
The photometer rating plate provides the following information:
Figure 5: Information on identification plate
Pos
Name
1
Manufacturer
2
Instrument type
3
Serial number
4
Conformity data
5
Ex protection type
6
Temperature classes
7
Ambient tempera-
ture
8
Certificates
9
Warning
You can also consult the photometer’s serial number in the menu
* SYSTEM INFO *. Reference Handbook

Instruction Manual DualScat Ex
6 10118E/5
1.5 Technical data
Measuring principle
90°/25° scattered light measurement at 650 nm
Measuring span
0 .. 2'000 NTU 90° (optional 25°)
Reproducibility
NTU
90°
25°
0 .. 8
±1% full scale
±1% full scale
8 .. 400
±2% full scale
±3% full scale
Resolution
less than ±0.25% full scale
Warm-up time
less than 3 min
Temperature stability
less than -0.15%K-1 full scale
Reaction time
less than 2 s (step response limit switch)
Servicing interval
see Service Schedule 5.1
Medium temperature
20 .. +80 °C, max. 120 °C for 1 h
Installation
In-line housing (Varivent®or compatible)
Service voltage
24 VDC (of control unit)
Flow cell
borosilicate glass (Pyrex) or Sapphire
stainless steel SS316L, 1.4435
seal NBR, EPDM, FPM or Kalrez
Enclosure
cast aluminum enclosure (GK-AlSi 13/ Silavont 15)
2-component synthetic resin finish
Dimensions
about 160 mm x Ø200 mm
see section 0 for detailed dimension drawing
Weight
about 6.4 kg
Degree of protection
IP65
Ex protection type/
temperature class
Ex db IIC T3/T4/T5/T6 Ga/Gb
Ambient temp.
-20 .. +50°C
Max. Druck
2 MPa (20 bar) at 80°C
<1 MPa (<10 bar) with blanking glass 118775
≥1 MPa (≥10 bar) with blanking plate 118786
Attention: Consider specification of the Varivent®-
housing
Cooling required
from 80 °C medium temperature
Turbidity
measurement
Photometer

Instruction Manual DualScat Ex
10118E/5 7
Service voltage
100 .. 240 V, 47 .. 63 Hz or 18 .. 30 VDC, 25 W
Dimensions
200 mm x 157 mm x 96 mm
See Section 0 for detailed dimension drawing
Weight
about 1.5 kg
Degree of protection
IP65
Connections
0/4 .. 20 mA per measuring angle, max. 600 ,
max. 24 V, with electrical isolation, max. 50V against
earth
Relay contacts max. 250 VAC, max. 4 A
Digital inputs and outputs max. 5 V
Service voltage
100 .. 240 V, 47 .. 63 Hz or 18 .. 30 VDC, 25 W
Mains switch
None
Dimensions
320 mm x 645 mm x 203 mm
Detailed dimension drawing see Section 0
Weight
Approx. 25 kg
Protection type
IP66
Ambient temperatures
-20°C to +50°C
Connections
See SIREL SMD
Additional technical data of the SIREL Ex is provided in Instruction Manual
11044DEF
SIREL SMD
SIREL Ex

Instruction Manual DualScat Ex
8 10118E/5
2Safety Rules
2.1 Symbols used
Symbols appearing in this documentation and on the equipment refer to the
following safety measures or precautions:
DANGER (BLACK ON YELLOW)
Warning about a general source of danger. This symbol marks areas or
manipulations that call for the observation of special safety rules. In these cas-
es consult the Instruction Manual, which specifies the applicable rules.
VOLTAGE (BLACK ON YELLOW)
Warning about a dangerous electric voltage. This symbol marks energized are-
as with voltages higher than 48 VAC or 65 VDC where an electric shock haz-
ard exists. In these cases be sure to observe the safety precautions and pro-
cedures prescribed in the Instruction Manual.
2.2 Rules for ensuring safe operation
Before starting up the instrument, study these rules and be sure to observe
them.
Do not carry out any mechanical or electrical modifications to the instru-
ment or parts of it, because this could compromise its degree of protec-
tion.
Only properly instructed personnel may open and close the photometer.
Be sure to observe the order of the operating steps contained in this doc-
umentation. They are marked with the symbol shown at the left.

Instruction Manual DualScat Ex
10118E/5 9
3Installation/Start-up
3.1 Installation
3.1.1 Photometer
The photometer can be installed using a standard in-line housing either in hori-
zontal or vertical product pipes.
Figure 6: Installation in vertical product pipes.
Figure 7: Installation in horizontal product pipes.
Pos
Name
X
Cooling outlet
(optional)
Y
Make sure the
slot points in the
direction of flow!
Z
Cooling inlet
(optional)
Figure 8: Groove in direction of flow.
A

Instruction Manual DualScat Ex
10 10118E/5
Important information for photometer installation:
Scratches on the blanking glass can lead to incorrect measurements: Ensure
that no scratches occur on the blackened outer face and uncolored inner face
when installing and removing the blanking glass. Always handle the blanking
glass with care.
The outer face of the blanking glass is blackened with a PVD chrome coating.
The inner side of the blanking plate is sand blasted.
The photometer must be installed in the pipe at a point at least 2 m away from
inspection windows or other sources of stray light.
3.1.2 Installation of the SIREL SMD Control unit
The SIREL SMD and any peripheral devices may not be installed or operated in
explosive atmospheres.
The SIREL SMD can be mounted right on a wall, on a mounting grate, or on a
stand.
Depending on the cable used (cross-section), the maximum distance between
control unit and photometer is given in the following table:
Cable cross-section
[mm2]
Max. distance
SIREL SMD [m]
Max. distance
SITRA [m]
0.14
42
35
0.25
75
65
0.34
103
90
0.50
148
130
0.75
223
200
standard version
1.00
289
260
1.50
414
370
Refer to Section 0 for a detailed dimension drawing of the SIREL SMD.

Instruction Manual DualScat Ex
10118E/5 11
3.1.3 Installation of the SIREL Ex control unit
Please consult manufacturer documentation 11044DEF when installing the
SIREL Ex.
A detailed dimension drawing of the SIREL Ex is in Section 0.
Refer to the table in Section 3.1.2 for distance dependency on cable cross-
section.
3.2 Electrical connections
3.2.1 General information about connecting
the SIREL SMD Ex
Any attempt to connect live conductors can result in fatal injury and can also
damage parts of the installation. When carrying out electrical installation work,
always observe the local codes.
In addition, observe the following rules:
It is absolutely necessary to connect the protective earth conductor.
Because the SIREL SMD/ Ex has no mains switch, a suitable discon-
nection device (switch, plug) must be provided close to the mains con-
nection.
If malfunctions cannot be eliminated, take the instrument out of ser-
vice and take precautions against it being put back into service inad-
vertently.
3.2.2 Opening the SIREL SMD
All electrical connections are made with spring-loaded terminals inside the con-
trol unit. To open the control unit, unscrew the four screws underneath the
side covers. Figure 9
Figure 9: Opening the control unit.

Instruction Manual DualScat Ex
12 10118E/5
3.2.3 Opening the SIREL Ex housing
You must interrupt the service voltage (explosion hazard) before opening the
SIREL Ex housing.
Action
Remarks
1.
Interrupt the service voltage to the
SIREL Ex.
Section 3.2.4
2.
Place a square wrench on the square
element (arrow) and unlock the cov-
er by rotating a quarter turn to the
left.
Square wrench Section 1.2
3.
Pull down the cover to open.
3.2.4 Establish SIREL SMD/ Ex electrical connections
For information about control signals, please refer to Section 2 in the Refer-
ence Handbook.
The terminals of the SIREL Ex are located in the lower part of the housing
(Figure 10). The housing must be open in order to connect the electrical con-
nections. Section 3.2.3
The terminal assignment is identical for the SIREL SMD and SIREL Ex.
Figure 11

Instruction Manual DualScat Ex
10118E/5 13
Figure 10: Position of SIREL Ex terminals
Figure 11: Terminal block for SIREL SMD 100..240 VAC.
Make up the electrical connections in the following order:

Instruction Manual DualScat Ex
14 10118E/5
Terminals
Used for
Remarks
1.
20 .. 23
Connection to photometer
SIREL SMD: Connect
wires to the terminal
block according to color
coding.
SIREL Ex: Connect wires
according to numbering.
2.
4 - 5 - 6
Relay output 1
The relay outputs are
freely configurable.
Reference Handbook
7 - 8 - 9
Relay output 2
18 - 19
Reading output for
1st meas. angle
(90° reading in the case of
dual-angle instrument)
0/4 .. 20 mA, max. bur-
den 600 
If unused, these terminals
must be shorted with a
jumper!
32 - 33
Reading output for
2nd meas. angle (25° read-
ing in the case of dual-
angle instrument)
Provided on dual-angle
instrument only.
If unused, these terminals
must be shorted with a
jumper!
3.
10 .. 17
Control signals for
1st meas. angle
Reference Handbook
26 .. 31
Control signals for
2nd meas. angle
Provided on dual-angle
instrument only.
16a
Control signal for sensor
check
Reference Handbook
24 - 25
Connection to bus coupler
Reference Handbook
4.
1 - 2 - 3
Mains voltage
100 .. 240 V,
47 .. 63 Hz or 18 ..
30 VDC, 25 W
Connection