SIGRIST OilGuard 2 Ex User manual

Document number: 13003E
Version: 3
Valid from: S/N 632 010 /
SW V329
INSTRUCTION MANUAL
OilGuard 2 Ex
Fluorescence Measuring Instrument

Copyright© SIGRIST-PHOTOMETER AG, subject to technical changes without notice 7/2019
SIGRIST-PHOTOMETER AG
Hofurlistrasse 1
CH-6373 Ennetbürgen
Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.photometer.com

Contents Instruction Manual OilGuard 2 Ex
13003E/3 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
1.10Declaration of conformity .................................................................................8
1.11 Dangers when not used properly ......................................................................9
1.12 Meaning of the safety symbols .........................................................................9
1.13 Meaning of the pictograms.............................................................................10
2Instrument overview ....................................................................................................11
2.1 Overview of OilGuard 2 Ex..............................................................................11
2.2 Designation of the OilGuard 2 Ex....................................................................12
2.3 Scope of supply and accessories......................................................................13
2.4 Technical data.................................................................................................16
3General safety points...................................................................................................18
3.1 Dangers during normal use.............................................................................18
3.2 Residual risk....................................................................................................19
3.3 Warning and danger symbols on the instrument.............................................19
3.4 Preventing undesirable online access attempts................................................20
4Mounting ....................................................................................................................21
4.1 Location selection ...........................................................................................21
4.2 Mounting variations........................................................................................22
4.3 Mounting the system......................................................................................23
4.4 Mounting the sample preparation system (optional) .......................................25
4.5 Mounting the sample feed pump (optional)....................................................27
4.6 Mounting the sample return pump (optional) .................................................29
4.7 Mounting the inlet pipe on the free-fall measuring cell PVDF..........................31
4.8 Mounting the inlet pipe on the free-fall measuring cell VA .............................32
4.9 Mounting the cooling system (optional)..........................................................33
5Electrical installation ....................................................................................................34
5.1 Safety pointers for the electrical connection....................................................34
5.2 Connecting the mains voltage to the Ex control unit.......................................35
5.3 Opening and closing the door on the OilGuard 2 Ex .......................................36
5.4 Adjusting the mains voltage on 115 VAC instruments ....................................37
5.5 Connecting the lines for data transmission .....................................................38
6Commissioning............................................................................................................39
7Operation ....................................................................................................................43
7.1 Operation basics .............................................................................................43
7.2 Control elements in measuring operation .......................................................44
7.3 Menu button ..................................................................................................44
7.4 Valu button ....................................................................................................44
7.5 Info button .....................................................................................................45
7.5.1 Page 1, Info button ...................................................................................45
7.5.2 Page 2, Info button ...................................................................................46
7.6 Diag button ....................................................................................................47

Instruction Manual OilGuard 2 Ex Contents
4 13003E/3
7.7 Functions of the log screen (Log button).........................................................48
7.8 Displays in measuring operation......................................................................49
7.9 Lock / unlock the touch screen........................................................................50
7.10 Switching to service mode ..............................................................................51
7.11 Control components in service mode ..............................................................52
7.11.1 Input elements in service mode..................................................................52
7.11.2 Numerical entry .........................................................................................53
7.11.3 Single selection of functions ......................................................................54
7.11.4 Multiple selection of functions...................................................................54
8Settings .......................................................................................................................55
8.1 Setting the operating language.......................................................................55
8.2 Setting the current outputs.............................................................................56
8.3 Setting the limits.............................................................................................57
8.3.1 Upper and lower threshold value of a limit ................................................58
8.3.2 Reading if limit exceeded or undershot ......................................................58
8.4 Setting the outputs .........................................................................................59
8.5 Setting the inputs ...........................................................................................60
8.6 Setting the date and time ...............................................................................61
8.7 Setting or changing the access code ...............................................................62
8.8 Backup configured data..................................................................................63
9Servicing......................................................................................................................64
9.1 Servicing schedule ..........................................................................................65
9.2 Leakage check on the measuring cell KPFL 30.................................................66
9.3 Recalibrating the photometer .........................................................................67
9.3.1 Preparing for recalibration using the checking unit ....................................67
9.3.2 Carrying out recalibration ..........................................................................69
9.4 Contamination check on the measuring cell KPFL 30 ......................................70
9.5 Replacing the measuring cell windows and seals on the measuring cell KPFL 3072
9.6 Contamination check on the free-fall measuring cell KPFLJC PVDF..................75
9.7 Contamination check on the free-fall measuring cell KPFLJ VA .......................78
9.8 Replacing the light source...............................................................................80
9.9 Replacing the fan............................................................................................82
9.10 Replacing the inlet pipe on the KPFLJC PVDF (short or long) ...........................83
9.11 Replacing the inlet pipe on the KPFLJ VA ........................................................84
9.12 Replacing the short inlet pipe PVDF (sample conditioning system)...................85
9.13 Cleaning the sample preparation system (optional) .........................................86
9.14 Cleaning the pipes..........................................................................................88
9.15 Taking a sample with the optional sampling equipment .................................89
10 Troubleshooting ..........................................................................................................91
10.1 Pinpointing malfunctions ................................................................................91
10.1.1 Warning messages and effect on operation...............................................91
10.1.2 Fault messages and effect on operation.....................................................93
10.1.3 Prioritized fault messages and their effect on operation.............................94
11 Customer service information ......................................................................................95
12 Decommissioning/Storage ...........................................................................................96
12.1 Decommissioning the photometer ..................................................................96
12.2 Storing the photometer ..................................................................................97

Contents Instruction Manual OilGuard 2 Ex
13003E/3 5
13 Packaging / Transport / Returning ................................................................................98
14 Disposal.......................................................................................................................99
15 Spare parts list ...........................................................................................................100
16 Appendix...................................................................................................................102
16.1 Service Record ..............................................................................................102
17 Index .........................................................................................................................103
Makro

Instruction Manual OilGuard 2 Ex Contents
6 13003E/3
This pageis i ntentionally blank
Makro

General user information Instruction Manual OilGuard 2 Ex
13003E/3 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 Ex 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
13005E
Brief Instructions
The most important functions and the servicing
schedule.
13004E
Reference Manual
More sophisticated menu functions and worksteps
for advanced users.
13118E
Data Sheet
Descriptions and technical data about the instru-
ment.
13006E
Service Manual
Repair and conversion instructions for service engi-
neers.
13166DEF
Declaration of Con-
formity
Compliance with the underlying directives and
standards.
13167E
Service & Operating
Manual VERSA-MATIC
Instruction Manual for pumps, only available in
English.
12919DEF
Manual
BVS 12 ATEX E 143
Description of the pressurized enclosure.
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 Ex General user information
8 13003E/3
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 Ex and its peripherals are designed for measuring mineral oil traces or other
fluorescent materials in aqueous solutions.
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

General user information Instruction Manual OilGuard 2 Ex
13003E/3 9
1.11 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.
1.12 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 Ex General user information
10 13003E/3
1.13 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 Ex.
Manipulations on the touchscreen.
The screenshot is an example and may differ from current device.

Instrument overview Instruction Manual OilGuard 2 Ex
13003E/3 11
2Instrument overview
2.1 Overview of OilGuard 2 Ex
Figure 1: Instrument overview of OilGuard 2 Ex

OilGuard 2 Ex photometer with
display (touchscreen)

Ex control unit

Large stand with adjustable pump
brackets

Sample preparation system

Measuring cell housing

Sampling equipment

Sample feed pump

Sample return pump

Piping, compressed air for pump


Instruction Manual OilGuard 2 Ex Instrument overview
12 13003E/3
2.2 Designation of the OilGuard 2 Ex
The photometer is fitted with the following rating plate:
Figure 2: Rating plate on OilGuard 2 Ex

Manufacturer

Country of origin

Product name

Serial number

Date of manufacture

Service voltage

Frequency range

Power

For information on explosion pro-
tection from thuba, see the Manual
12919DEF (BVS 12 ATEX E143)

Pay attention to the Instruction Manual
and disposal information

Instrument overview Instruction Manual OilGuard 2 Ex
13003E/3 13
2.3 Scope of supply and accessories
Standard scope of supply for the OilGuard 2 Ex:
PCS.
Art. no.
Name
View
Variant
1
119552
Ex housing with
photometer and
integrated operat-
ing unit
230 VAC
1
119553
115 VAC
1
1) 114427
2) 114429
3) 115801
Measuring cell
1) Closed measur-
ing cell KPFL30
or
2) Free-fall measur-
ing cell KPFLJ VA
or
3) Free-fall measur-
ing cell KPFLJC
PVDF
1
119075
Checking unit
PCS.
Art. no.
Name
View
Variant
1
13003
Instruction Manual
German
French
English
1
13004
Reference Manual
German
English
1
13005
Brief Instructions
German
French
English

Instruction Manual OilGuard 2 Ex Instrument overview
14 13003E/3
Optional accessory parts:
PCS.
Art. no.
Name
View
Variant
1
119745
Sample prepara-
tion system for
PVDF measuring
cell
1
119810
Sample prepara-
tion system for VA
measuring cell
(incl. piping for
sample prepara-
tion, connecting
pipe to free-fall
measuring cell and
short inlet pipe
with thread)
1
119815
Sampling kit
1
119808
Sample feed pump
(incl. pressure
gauge, inlet pipe
and valve)
1
119809
Sample return
pump (incl. pres-
sure gauge, outlet
pipe and valve)
1
119922
Sample return
pump (incl. piping
if no sampling
equipment is
available)

Instrument overview Instruction Manual OilGuard 2 Ex
13003E/3 15
PCS.
Art. no.
Name
View
Variant
1
119816
Piping for com-
pressed air on
pump
1
119805
Large stand
1/2
119813
Pump bracket
Can only be
used together with
the stand.
1
119804
Wall bracket
(incl. screws)
1
114432
Cooling system
1
118442
Interfaces pcb
Profibus DP
1
118445
Modbus RTU
1
119796
HART

Instruction Manual OilGuard 2 Ex Instrument overview
16 13003E/3
2.4 Technical data
DATA
VALUES
Measuring principle
Fluorescence measurement
Measuring scope
0 .. 0.1 FLU / 0 .. 100 FLU
Measuring ranges
8 ranges (freely configurable for different types of oil)
Sample medium
Aqueous solutions with traces of mineral oil or other fluorescent
materials
Resolution
0.5% (based on the quinine sulfate in the water)
Dimensions
For a detailed dimension sheet, see the Section 16
Reproducibility
2 % (based on the quinine sulfate in the water)
Warm-up time
At least 2 hours
Sensitivity
0.5 .. 5 ppm for mineral oils (depending on the oil)
Reaction time
< 2 secs (step response limit switch)
OilGuard 2 Ex photometer:
DATA
VALUES
Service voltage
230 V; 50/60 Hz (100, 115, 130 V only with impedance matching
transformer)
Power consumption
P = 65 W / S = 160 VA
Outputs
1 x 0/4 .. 20 mA, galvanically isolated up to max. 50 V relative
to ground and max. 500 Ω burden
3 x digital outputs up to max. 30 VDC
2 x relay contacts with max. 250 VAC / max. 6 A
Inputs
4 x digital inputs up to max. 30 VDC
Interfaces
Ethernet for operation/configuration via web browser
Modbus TCP, SD card for logging, SW update, diagnostics
Optional: Modules for Profibus DP, Modbus RTU, HART
Weight
About 43 kg
Protection class
IP 66
Explosion protection
Zone 1, Ex px ib IIC T4 Gb
Operation/display
¼ VGA with touch screen
Resolution: 320 x 240 pixels with 5.7“ diagonals
Maximum operating
altitude
2,000 m above sea level
Ambient temperature
-20 .. +40 °C (with optional cooling system up to +50 °C)
Ambient humidity
0 .. 100 % rel. humidity

Instrument overview Instruction Manual OilGuard 2 Ex
13003E/3 17
DATA
VALUES
Sample pressure
See measuring cell
Housing material
Stainless steel 1.4404 / 316L
Quality of compressed
air
Instrument air, ISO 8573-1:2010 [1:3:1]
Compressed air con-
sumption
At least 1.5 bar, minimum flow rate during purging 54 l/min, con-
sumption during operation 5.5 l/min
Closed flow cell KPFL30:
DATA
VALUES
Material
Stainless steel 1.4435 (316L)
Window material
Quartz and Borosilicate
Seals
Neoprene
Medium pressure
Max. 1 MPa (= 10 bar)
Medium temperature
Max. 100 °C
Sample flow
0.5 .. 2 l/min
Connections
12mm
Free fall flow cell KPFLJ VA:
DATA
VALUES
Material
Stainless steel 1.4435 (316L)
Window material

Seals

Medium pressure
Pressureless
Medium temperature
Max. 40 °C
Sample flow
5 .. 7 l/min (8 .. 25 l/min with sample preparation)
Connections
Inlet: 12mm / outlet: 35mm
Free fall flow cell KPFLJC PVDF:
DATA
VALUES
Material
PVDF
Window material

Seals

Medium pressure
Pressureless
Medium temperature
Max. 95 °C
Sample flow
5 .. 7 l/min
Connections
Inlet: 16mm / outlet: 50mm

Instruction Manual OilGuard 2 Ex General safety points
18 13003E/3
3General safety points
3.1 Dangers during normal use
DANGER!
Opening the photometer in potentially explosive areas.
Opening the photometer in potentially explosive areas can lead to an explosion.
The instrument may be opened only after the service voltage has been interrupted and a
period of at least ten minutes has elapsed.
DANGER!
Damage to the instrument or cabling.
A short circuit due to damaged cabling can lead to an explosion.
The system may be operated only when the cables are undamaged.
The system may be put into operation only if it has been properly installed or repaired.
Carry out servicing according to the servicing schedule.
DANGER!
Operation with a defective Ex control unit.
A non-functional Ex control unit can lead to an explosion.
The system may be operated only when the Ex control unit is working perfectly.
Carry out servicing according to the servicing schedule.
DANGER!
Leaking Ex housing.
A leaking Ex housing can lead to an explosion.
The system may be operated only when the pressure display shows overpressure accord-
ing to Section 2.4.
Carry out servicing according to the servicing schedule.
DANGER!
Damage to the instrument due to incorrect power supply.
The instrument may be damaged if it is connected to an incorrect voltage source.
The instrument may be connected only to voltage sources as specified on the rating
plate.
DANGER!
Instruction Manual missing when the instrument changes hands.
If the instrument is operated without knowledge of the Instruction Manual, then this can
lead to personal injuries 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 latest 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 the inlet and outlet are not leaking.

General safety points Instruction Manual OilGuard 2 Ex
13003E/3 19
CAUTION!
Moisture and condensation on electronic components during servicing duties.
The photometer may be damaged if moisture enters the inside of the instrument.
Work inside the instrument may only be carried out in dry conditions. In doing so, the
instrument should be at operating temperature or room temperature (avoid condensa-
tion on optical and electrical surfaces).
CAUTION!
Use of aggressive chemicals when cleaning.
The use of aggressive cleaning agents can lead to damage to the instrument components.
Do not use aggressive chemicals or solvents when cleaning.
If the instrument should come into contact with aggressive chemicals, then clean it im-
mediately with neutral cleaning agents.
3.2 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.
3.3 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 1.8
Section 1.11
Section 1.12
Section 3.1
Section 3.2
Observe safety pointers when performing the described procedures.
Observe local safety pointers.

Instruction Manual OilGuard 2 Ex General safety points
20 13003E/3
3.4 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).