SIGRIST OilGuard 2 W User manual

Document number: 14809E
Version: 2
Valid from: S/N 625020 /
SW V129
INSTRUCTION MANUAL
OilGuard 2 W
Oil trace monitor with free-fall
measuring cell

Copyright© SIGRIST-PHOTOMETER AG, subject to technical changes without notice 2/2019
SIGRIST-PHOTOMETER AG
Hofurlistrasse 1
CH-6373 Ennetbürgen
Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.photometer.com

Contents Instruction Manual OilGuard 2 W
14809E/2 3
Contents
1General user information...............................................................................................7
1.1 Terms used in this document (glossary) .............................................................7
1.2 Purpose of the Instruction Manual ....................................................................7
1.3 Target group of the documentation..................................................................7
1.4 Additional documentation ................................................................................7
1.5 Copyright provisions .........................................................................................7
1.6 Document storage location...............................................................................7
1.7 Order document ...............................................................................................8
1.8 Proper use ........................................................................................................8
1.9 User requirements ............................................................................................8
1.10 Declaration of conformity .................................................................................8
1.11 Use restrictions .................................................................................................8
1.12 Dangers when not used properly ......................................................................9
1.13 Meaning of the safety symbols .........................................................................9
1.14 Meaning of the pictograms.............................................................................10
2Instrument overview ....................................................................................................11
2.1 Overview of the OilGuard 2 W........................................................................11
2.2 Designation of the photometer.......................................................................12
2.3 Scope of supply and accessories......................................................................13
2.3.1 Standard scope of supply for the OilGuard 2 W.........................................13
2.3.2 Optional accessories for the OilGuard 2 W ................................................14
2.4 Technical data for the OilGuard 2 W...............................................................15
2.4.1 Typical measuring values and calculation factors........................................16
3General safety points...................................................................................................17
3.1 Dangers when properly used ..........................................................................17
3.2 Danger due to UV radiation ............................................................................18
3.3 Residual risk....................................................................................................18
3.4 Warning and danger symbols on the instrument.............................................18
3.5 Preventing undesirable online access attempts................................................19
4Mounting ....................................................................................................................20
4.1 Location selection ...........................................................................................20
4.2 Mounting the OilGuard 2 W ...........................................................................20
4.3 Mounting the docking station.........................................................................21
4.4 Mounting the sample connections..................................................................22
4.4.1 General information on the sample connections........................................22
4.4.2 Fastening the sample connections on the OilGuard 2 W ............................23
4.5 Mounting the optional accessories..................................................................24
4.5.1 General information on the optional accessories........................................24
4.5.2 Mounting the level control ........................................................................24
5Electrical installation ....................................................................................................25
5.1 Safety pointers for the electrical connection....................................................25
5.2 Removing and reattaching the front cover ......................................................26
5.3 Connecting the customer connections............................................................27
5.4 Connecting the optional 24 VDC power supply ..............................................29
5.5 Connecting the field bus interfaces (optional) .................................................31
5.5.1 Overview of Modbus RTU and Profibus DP ................................................31
5.5.2 Connecting the Modbus RTU or Profibus DP..............................................32
5.5.3 Overview of Profinet IO .............................................................................32
5.5.4 Overview of HART .....................................................................................33
5.5.5 Connecting to HART..................................................................................33
5.6 Connecting the analog modules (optional) .....................................................34

Instruction Manual OilGuard 2 W Contents
4 14809E/2
5.6.1 Overview of 4-way current output .............................................................34
5.6.2 Connecting the 4-way current output .......................................................34
6Commissioning............................................................................................................35
7Operation ....................................................................................................................37
7.1 Operation basics .............................................................................................37
7.2 Control elements in measuring operation .......................................................38
7.3 Menu button ..................................................................................................38
7.4 Valu button ....................................................................................................38
7.5 Info button .....................................................................................................39
7.5.1 Info button, screen 1 .................................................................................39
7.5.2 Page 2, Info button ...................................................................................40
7.6 Diag button ....................................................................................................41
7.7 Functions of the log screen (Log button).........................................................42
7.8 Displays in measuring operation......................................................................43
7.9 Lock / unlock the touch screen........................................................................44
7.10 Switching to service mode ..............................................................................45
7.11 Control components in service mode ..............................................................46
7.11.1 Input elements in service mode..................................................................46
7.11.2 Numerical entry .........................................................................................47
7.11.3 Single selection of functions ......................................................................48
7.11.4 Multiple selection of functions...................................................................48
8Settings .......................................................................................................................49
8.1 Setting the operating language.......................................................................49
8.2 Setting the current outputs.............................................................................50
8.3 Setting the limits.............................................................................................51
8.3.1 Upper and lower threshold value of a limit ................................................52
8.3.2 Reading if limit exceeded or undershot ......................................................52
8.4 Setting the outputs (digital) ............................................................................53
8.5 Setting the date and time ...............................................................................54
8.6 Setting or changing the access code ...............................................................55
8.7 Backup configured data..................................................................................56
9Servicing......................................................................................................................57
9.1 Servicing schedule for OilGuard 2 W...............................................................57
9.1.1 Fastening the optics unit to the docking station.........................................58
9.1.2 Checking the flow rate and cleanliness ......................................................60
9.1.3 Manual adjustment ...................................................................................62
9.1.4 Automatic adjustment with OilGuard 2 W A .............................................64
9.1.5 Cleaning parts which come into contact with water ..................................65
9.1.6 Replacing the air filter................................................................................68
9.1.7 Replacing the battery.................................................................................69
10 Troubleshooting ..........................................................................................................71
10.1 Pinpointing malfunctions ................................................................................71
10.2 Warning messages and effect on operation ....................................................72
10.3 Fault messages and effect on operation ..........................................................73
10.4 Prioritized fault messages and their effect on operation ..................................74
10.5 Replacing the fine-wire fuses ..........................................................................75
11 Customer service information ......................................................................................76
12 Decommissioning/Storage ...........................................................................................77
12.1 Decommissioning the OilGuard 2 W ...............................................................77
12.2 Storing the components .................................................................................77
13 Packaging/Transport/Returning ....................................................................................78

Contents Instruction Manual OilGuard 2 W
14809E/2 5
14 Disposal.......................................................................................................................79
15 Spare parts list .............................................................................................................80
15.1 Spare parts for the OilGuard 2 W....................................................................80
16 Index ...........................................................................................................................81
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Instruction Manual OilGuard 2 W Contents
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General user information Instruction Manual OilGuard 2 W
14809E/2 7
1General user information
1.1 Terms used in this document (glossary)
Please refer to our website for specialist terms: www.photometer.com/en/glossary/
1.2 Purpose of the Instruction Manual
This Instruction Manual provides the user with helpful information about the entire life cycle
of the OilGuard 2 W and its peripheral devices. Before commissioning the instrument, you
should be completely familiar with the Instruction Manual.
1.3 Target group of the documentation
The Instruction Manual is intended for all persons who are responsible for the operation and
maintenance of the instrument.
1.4 Additional documentation
DOC. NO.
TITLE
CONTENT
14808E
Brief Instructions
The most important functions and the servicing
schedule.
14811E
Reference Manual
More sophisticated menu functions and worksteps
for advanced users.
14790E
Data Sheet
Descriptions and technical data about the instru-
ment.
14813E
Service Manual
Repair and conversion instructions for service engi-
neers.
14897DEF
Declaration of Con-
formity
Compliance with the underlying directives and
standards.
11887DEF
Declaration of Conformi-
ty, SP-C039 (power sup-
ply)
Compliance with the underlying directives and
standards.
1.5 Copyright provisions
This document has been written by SIGRIST-PHOTOMETER AG. Copying or modifying the
content or giving this document to third parties is permitted only with the express consent of
SIGRIST-PHOTOMETER AG.
1.6 Document storage location
This document is part of the product. It should be stored in a safe place and always be close
at hand for the user.

Instruction Manual OilGuard 2 W General user information
8 14809E/2
1.7 Order document
The most recent version of this document can be downloaded at www.photometer.com
(first time registration required).
It can also be ordered from a SIGRIST representative in your country (Instruction Manual
“Customer service information”).
1.8 Proper use
The OilGuard 2 W is designed for measuring oil traces during water treatment and is opti-
mized for the values that occur in water treatment plants with regard to measuring scope
and ambient conditions.
1.9 User requirements
The instrument may be operated only by trained technical personnel who have read and un-
derstood the content of the Instruction Manual.
1.10 Declaration of conformity
Current technological principles were followed in designing and manufacturing the instru-
ment. They comply with the applicable guidelines concerning safety and duty to take due
care.
EU: The measuring instrument meets all applicable requirements within the European Union
(EU) for carrying the CE mark.
Please refer to the separate declaration of conformity for details. Section 1.4
1.11 Use restrictions
EXPLOSION
HAZARD!
Operation in an inappropriate environment.
Use in explosive areas can cause explosions, which can lead to the death of persons in the
vicinity.
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.

General user information Instruction Manual OilGuard 2 W
14809E/2 9
1.12 Dangers when not used properly
DANGER!
Operation when not used properly.
Improper use of the instrument can cause injuries to persons, process-related consequential
damage and damage to the instrument 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, set up or transported.
The instrument is not installed and operated 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 concerning
pressure and temperature.
The instrument is exposed to vibrations, shocks or other mechanical forces.
1.13 Meaning of the safety symbols
All danger symbols used in this document are explained below:
DANGER!
Danger due to electrical shock that may result in serious bodily injury or death.
Non-observance of this notice may lead to electrical shocks and death.
EXPLOSION
HAZARD!
Danger due to explosion that may result in serious bodily injury or death.
Non-observance of this notice may cause explosions resulting in serious property damage
and death.
WARNING!
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.
CAUTION!
Notice about possible material damage.
Non-observance of this notice may cause material damage to the instrument and its
peripherals.

Instruction Manual OilGuard 2 W General user information
10 14809E/2
UV RADIATION
Danger due to UV radiation.
Non-observance of this warning can lead to permanent damage to the eyes and skin.
HOT SURFACES!
Danger due to hot surfaces that may result in injuries.
Non-observance of this warning can lead to burns.
1.14 Meaning of the pictograms
All pictograms used in this document are explained below:
Additional information about the current topic.
Practical procedures when working with the OilGuard 2 W.
Manipulations on the touchscreen.
The screenshot is an example and may differ from current device.

Instrument overview Instruction Manual OilGuard 2 W
14809E/2 11
2Instrument overview
2.1 Overview of the OilGuard 2 W
Figure 1: Measuring point with optional accessories

Photometer with free-fall measur-
ing cell

Outlet

Sample inlet of the level control

Sample overflow of the level control

Set for wall mounting

Inlet pipe on the photometer

Instruction Manual OilGuard 2 W Instrument overview
12 14809E/2
2.2 Designation of the photometer
The photometer is fitted with the following rating plate:
Figure 2: Rating plate on OilGuard 2 W

Manufacturer

Country of origin

Product name

Serial number

Date of manufacture

Service voltage

Frequency range

Power

Observe the disposal information

Observe the Instruction Manual

Instrument overview Instruction Manual OilGuard 2 W
14809E/2 13
2.3 Scope of supply and accessories
2.3.1 Standard scope of supply for the OilGuard 2 W
PCS.
ART. NO.
NAME
VIEW
VARIANT
1
121250
OilGuard 2 W with
set for wall
mounting and lev-
el control
121316
OilGuard 2 W A
with set for wall
mounting and lev-
el control
With automatic ad-
justment
121210
OilGuard 2 W
121315
OilGuard 2 W A
With automatic ad-
justment
Documentation:
PCS.
ART. NO.
NAME
VIEW
VARIANT
1
14809
Instruction Manual
German
French
English
1
14811
Reference Manual
German
English
1
14808
Brief Instructions
German
French
English

Instruction Manual OilGuard 2 W Instrument overview
14 14809E/2
2.3.2 Optional accessories for the OilGuard 2 W
PCS.
ART. NO.
NAME
VIEW
VARIANT
1
121233
Set for wall
mounting and lev-
el control on the
OilGuard 2 W
1
121255
Checking unit for
OilGuard 2 W
Manual calibration
unit
1
119102
Profibus DP, inter-
faces print
1
119103
Modbus RTU, in-
terfaces print
1
121120
Profinet IO,
interfaces print
1
119798
HART,
interfaces print
1
119041
4-way current
output module
1
119082
I/O module
1
119045
24 VDC power
supply, 20 W,
IP66, input 100 to
240 VAC
1
119081
Ethernet cable
IP66
(for fixed installa-
tion)

Instrument overview Instruction Manual OilGuard 2 W
14809E/2 15
2.4 Technical data for the OilGuard 2 W
Fluorescence measure-
ment
Values
Measuring principle
Fluorescence measurement
Measuring scope
0 .. 50 µg/l (ppb) with 16 EPA-PAH calibration
Wavelength
Excitation: 280 nm (EN 62471 Risk Group 3 –High Risk)
Detection: 300 –400 nm
Radiation class
LED device of Risk Group 3 according to EN 62471
Resolution
0.01 µg/l (ppb) with 16 EPA-PAH calibration
Detection limit
< 0.1 µg/l (ppb) with 16 EPA-PAH calibration
Photometer
Values
Reproducibility
± 2 % from measuring range with 16 EPA-PAH
Repeatability
± 0.5 % from measuring range with 16 EPA-PAH
Service voltage
18 –30 VDC
Power consumption
8 W
Dimensions
See detailed dimensional drawing
Weight
3.2 kg
Protection class
IP54 (only electronics)
Maximum operating alti-
tude
2,000 m above sea level for instruments that are not operated
with low voltage (mains, relays)
Ambient temperature
0 .. 50 °C
Ambient humidity
0 .. 95% rel. humidity, non-condensing
Housing
Plastic (ABS)
Outputs/inputs
Outputs:
2 x 0/4 .. 20 mA, galvanically isolated up to max. 50 V rela-
tive to ground, max. 500 Ω burden
2 x relay contacts 250 V, 4 A
Inputs:
2 x 0/4 .. 20 mA, not galvanically isolated
1 x digital input (for external NO contact such as flow meter
with limit contacts)
Outputs/inputs
Optional I/O module
Outputs:
2 x 0/4 .. 20 mA, galvanically isolated up to max. 50 V rela-
tive to ground, max. 500 Ω burden
4 x digital outputs up to max. 30 VDC, freely configurable
Inputs:
5 x digital inputs up to max. 30 VDC, freely configurable

Instruction Manual OilGuard 2 W Instrument overview
16 14809E/2
Photometer
Values
Outputs
Optional 4-way current
output module
Outputs:
4 x 0/4 .. 20 mA, galvanically isolated up to max. 50 V rela-
tive to ground, max. 500 Ω burden
Measuring ranges
8, freely configurable
Interfaces
Ethernet, SD card (for logging, SW update, diagnostics), Mod-
bus TCP, optional: Modbus RTU, Profibus DP, Profinet IO or
HART
Display
¼ VGA with touchscreen
Resolution: 320 x 240 pixels with 3.5" diagonal
Free-fall measuring cell
Values
Material
Inlet pipe: stainless steel 1.4435 or PVC
Outlet: PVC
Sample pressure
Pressureless
Medium temperature
0 .. 40 °C (not more than 30 °C over the ambient temperature)
Sample flow
2.5 .. 7 l/min
Connections
Inlet pipe: 12 mm
Outlet pipe: 25 mm
24 VDC power supply
Values
Service voltage
100 .. 240 VAC, 47 .. 63 Hz
Power consumption
Max. 25 W (the power consumption of the connected sensors
must not exceed 21 W)
Maximum operating
altitude
2000 m above sea level
Protection class
IP66
Weight
0.66 kg
Dimensions
approx. 130 x 155 x 55 mm (W x H x D)
Housing material
PC
2.4.1 Typical measuring values and calculation factors
Typical measuring values and calculation factors can be found on our homepage:
www.photometer.com

General safety points Instruction Manual OilGuard 2 W
14809E/2 17
3General safety points
3.1 Dangers when properly used
DANGER!
Damaged instrument or cabling.
Touching damaged cables may lead to electrical shocks or death.
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.
DANGER!
Dangerous voltage inside the instrument.
Touching live components inside the instrument may lead to electric shocks resulting in
death.
The instrument must not be operated when the housing is removed or opened.
DANGER!
Damage to the instrument due to incorrect service voltage.
If the instrument is connected to an incorrect service voltage, the instrument can be dam-
aged.
The instrument may be connected only to voltage sources as specified on the rating
plate.
DANGER!
Missing Instruction Manual after the instrument changes hands.
Operating the instrument without knowledge of the Instruction Manual may lead to injuries
to persons and damage to the instrument.
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.
CAUTION!
Escaping water from leaks on the instrument or water connections.
Escaping water can lead to flooding of the room and material damage to the building and
fittings.
Check that there are no leaks.
CAUTION!
Moisture and condensation on electronic components during operation.
Damage may occur if moisture enters the inside of the OilGuard 2 W.
CAUTION!
Penetration of moisture as well as condensation on the electrical components dur-
ing servicing duty.
If moisture enters the instrument, the OilGuard 2 W can be damaged.
Work inside the instrument may be performed only in a dry room and at room tempera-
ture. The instrument should be at operating or room temperature (avoid condensation
on optical and electrical surfaces).

Instruction Manual OilGuard 2 W General safety points
18 14809E/2
CAUTION!
The use of aggressive chemicals when cleaning.
Use of aggressive chemicals can cause damage to instrument components.
Do not use aggressive chemicals or cleaning agents when cleaning.
Should the instrument come in contact with aggressive chemicals, clean it thoroughly
with a neutral cleaning agent.
3.2 Danger due to UV radiation
UV RADIATION!
The OilGuard is equipped with a UV LED with an emission wavelength of 280 nm.
According to the standard IEC/EN 62471 (Photobiological safety of lamps and lamp
systems), this LED is classified in Risk Group 3 (High Risk).
Exposure of longer than 3 seconds can lead to permanent damage to the eyes and
skin.
The UV LED is only accessible when the housing is open. The OilGuard is equipped with
an automatic cut-off device that puts the LED out of operation when the housing is
open.
Switch off the OilGuard when carrying out servicing duties, or wear UV goggles and
gloves.
3.3 Residual risk
WARNING!
According to the risk assessment of the applied safety directive DIN EN 61010-1,
there remains the risk of the displayed measuring values being incorrect. This risk
can be reduced with the following measures:
Use an access code to prevent unauthorized persons from changing parameters.
Perform the specified servicing duties.
3.4 Warning and danger symbols on the instrument
WARNING!
There are no warning or danger symbols on the instrument.
Users must ensure that they observe the safety measures as specified in the Instruction Man-
ual at all times when working with the instrument and its peripheral equipment, even if no
warning or danger symbols are attached to the instrument.
The following sections must be internalized:
Section 1.11
Section 1.12
Section 1.13
Section 3.1
Section 3.3
Observe safety pointers when performing the described procedures.
Observe local safety pointers.

General safety points Instruction Manual OilGuard 2 W
14809E/2 19
3.5 Preventing undesirable online access attempts
WARNING!
SIGRIST instruments are equipped with an integrated web user interface and Mod-
bus TCP interface, thus offering state-of-the-art administration and control possibil-
ities. However, if these are connected directly to the Internet, then any Internet us-
er can in principle access your instrument and change the configuration.
Please note the following points to prevent this:
Never connect the instrument directly to the Internet.
Operate it behind a firewall and block access to the instrument.
Only connect to branch offices via VPN.
Change the standard password on commissioning.
Always keep up to date with the latest changes regarding Internet security so that you
can react promptly in the event of alterations.
Install the latest updates immediately (also for the router and firewall).

Instruction Manual OilGuard 2 W Mounting
20 14809E/2
4Mounting
4.1 Location selection
Note the following points for the operating location:
Electrical supply must be ensured.
The water supply must be ensured as described in the technical data.
The water outlet must be unhindered.
The system should not be exposed to direct sunlight during measurement; the meas-
urement can be skewed by excessive external light.
4.2 Mounting the OilGuard 2 W
The dimensional specifications according to the mounting drawings attached in the docu-
mentation ring binder of OilGuard 2 W.
Mount the OilGuard 2 W as follows:
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
Screw on the mounting bracket at the desired
position. The mounting bracket must be hori-
zontally aligned with a spirit level.
2.
Align the OilGuard 2 W to the two positioning
pins (circles), then screw onto the mounting
bracket.
3.
Remove the optics unit from the OilGuard 2 W
according to Section 9.1.1.