KROHNE OPTIBAR 5060 Wiring diagram

Pressure transmitter
Category
ATEX: II 1/2G, 2G Ex db ia IIC T6…T1 Ga/Gb, Gb
IECEx: Ex db ia IIC T6...T1 Ga/Gb, Gb
Housing
Aluminium: single chamber, double chamber
Stainless steel (precision casting): single chamber, double chamber
OPTIBAR 5060 Supplementary Instructions
© KROHNE 11/2020 - 4004172603 - AD OPTIBAR5060 Exdbia R04 en

CONTENTS
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OPTIBAR 5060
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EU conformity................................................................................................................... 3
1.3 Approval according to the IECEx scheme ........................................................................ 4
1.4 Safety instructions............................................................................................................ 4
2 Device description 5
2.1 Description of device ........................................................................................................ 5
2.2 Marking............................................................................................................................. 5
2.2.1 Marking for ATEX .................................................................................................................... 5
2.2.2 IECEx marking......................................................................................................................... 6
2.3 Flammable products ........................................................................................................ 6
2.4 Equipment category ......................................................................................................... 6
2.5 Protection types................................................................................................................ 7
2.6 Ambient temperature / temperature classes.................................................................. 8
2.6.1 Temperature derating........................................................................................................... 10
2.7 Electrical data................................................................................................................. 12
2.7.1 With electronics Z (4…20 mA), H (4…20 mA/HART®), A (4…20 mA/HART® with SIL
qualification) ................................................................................................................................... 12
2.7.2 With electronics P (Profibus PA), F (Foundation Fieldbus).................................................. 13
2.7.3 With electronics S or T for electronic differential pressure measurement........................ 13
2.7.4 With electronics H (4…20 mA/HART®) or A (4…20 mA/HART® with SIL qualification
and additional electronics Z (second current output).................................................................... 14
2.7.5 With separate cable outlet.................................................................................................... 14
3 Installation 15
3.1 Installation...................................................................................................................... 15
4 Special conditions 16
4.1 Protection against static electricity ............................................................................... 16
4.2 Use of an overvoltage arrester....................................................................................... 16
4.3 Grounding ....................................................................................................................... 16
4.4 Impact and friction sparks ............................................................................................. 16
4.5 Material resistance......................................................................................................... 16
4.6 Mounting / setup............................................................................................................. 17
4.7 Protection type flameproof enclosure Ex "db" .............................................................. 17
4.8 Mounting of the OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with remote housing ....... 19
4.9 Size and type of thread for the "Ex-db" cable entries ................................................... 19
4.10 Removal and replacement of the red thread/dust cover............................................. 19

SAFETY INSTRUCTIONS 1
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OPTIBAR 5060
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1.1 General notes
These safety instructions are valid for the pressure transmitter OPTIBAR * 5060
VGK5/6/D*A/W/V E/Z/6/7 with integrated electronics Z (4…20 mA), H (4…20 mA/HART), A
(4…20 mA/HART® with SIL qualification), P (Profibus PA), F (Foundation Fieldbus), S, T
(electronic differential pressure measurement) without additional electronics (X) and OPTIBAR *
5060 VGK5/6/D*A/W/V E/Z/6/7 with integrated electronics H (4…20 mA/HART) or A (4…20
mA/HART® with SIL qualification) with additional electronics (Z) according to the EU type
examination certificate TUEV 17 ATEX 208187 X.
The pressure-based measuring devices OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are also used
for pressure and level measurement in hazardous areas.
The measured products can also be combustible liquids, gases, mist or vapours.
The OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 consist of an "Ex-db"-electronics housing with
integrated electronics module, a process connection element and a probe, the pressure
measuring cell with optionally connected diaphragm seal. As an option, the display and
adjustment module can also be mounted.
The OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are suitable for use in hazardous atmospheres of
all combustible materials of explosion group IIA, IIB and IIC for applications requiring equipment
category 1/2G or 2G.
When the OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are installed and operated in hazardous
areas, the general Ex installation regulations EN 60079-14 as well as these safety instructions
must be observed.
1.2 EU conformity
The manufacturer declares with the EU declaration of conformity on his own responsibility
conformity with the protection goals of directive 2014/34/EU according to EN IEC 60079-0,
EN 60079-1, EN 60079-11 and EN 60079-26 for use in hazardous areas with gas.
The EU type test certificate forms the basis of the EU declaration of conformity:
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these instructions.
If needed the EU type examination certificate can be downloaded from the manufacturer's
website.
TÜV 17 ATEX 208187 X

1 SAFETY INSTRUCTIONS
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1.3 Approval according to the IECEx scheme
Conformity with IECEx standards was tested in accordance with the "IECEx Certification Scheme
for Explosive Atmospheres" according to IEC 60079-0, IEC 60079-1, IEC 60079-11 and
IEC 60079-26. The number of the IEC certificate is:
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these instructions.
If needed the IEC certificate can be downloaded from the manufacturer's website.
1.4 Safety instructions
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
IECEx TUN 18.0007 X
CAUTION!
The operator or his agent is responsible for observing any additional standards, directives or
laws if required due to operating conditions or place of installation.

DEVICE DESCRIPTION 2
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OPTIBAR 5060
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2.1 Description of device
The pressure transmitter of the OPTIBAR 5060 series is designed to measure the pressure of
vaporous, gaseous and liquid media.
2.2 Marking
2.2.1 Marking for ATEX
The marking of the entire device is on the housing, where the following identification plate can be
found.
Figure 2-1: Example for an ATEX nameplate for an OPTIBAR 5060
1 Observe the instructions
2 Marking of notified body and CE marking
3 Hardware version
4 Product name and type code
5 Permissible temperature range
6 Nominal range
Permissible process pressure
7 Electronics power supply and signal output
8 Ingress protection and material of wetted parts
(Diaphragm, process connection, sealing and fill fluid)
9 Approvals and approval directive
TMAX: See manual and approval documents
2022
HW Ver 1.0.0
PED SEP
VGK54AEDUFAGG0SHXA1NXDD00K0X
TÜV 17 ATEX 208187 X
9,6...35VDC
II 1/2G, 2G
Ex db ia IIC T6...T1 Ga/Gb, Gb

2 DEVICE DESCRIPTION
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OPTIBAR 5060
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2.2.2 IECEx marking
The marking of the entire device is on the housing, where the following identification plate can be
found.
2.3 Flammable products
Atmospheric conditions:
An explosive atmosphere is a mixture of air and flammable gases, vapours, mists or dusts under
atmospheric conditions. It is defined by the following values
Tatm = -20...+60°C / -4...+140°F and Patm = 0.8...1.1 bar / 11.6...15.9 psi.
Operation outside the specified above standard atmospheric conditions is permitted only via risk
assessment of the user and additional measures, as necessary.
Operating conditions:
Outside of atmospheric conditions, the explosion protection according to directive
2014/34/EU (ATEX) – regardless of the zone assignment – is not applicable due to the lack of key
safety data.
2.4 Equipment category
Category 1/2G equipment (EPL-Ga/Gb equipment)
The process connection element is installed in the separating wall, which separates areas in
which equipment category 2G or 1G are required. The electronics housing is installed in
hazardous areas requiring equipment category 2G. The probe is installed in hazardous areas
requiring equipment category 1G.
Figure 2-2: Example for an IECEx nameplate for an OPTIBAR 5060
1 Observe the instructions
2 Hardware version
3 Product name and type code
4 Permissible temperature range
5 Nominal range
Permissible process pressure
6 Electronics power supply and signal output
7 Ingress protection and material of wetted parts
(Diaphragm, process connection, sealing and fill fluid)
8 Approvals and approval directive
TMAX: See manual and approval documents
2022
HW Ver 1.0.0
PED SEP
VGK54WEDUFAGG0SHXA1NXDD00K0X
IECEx TUN 18.0007 X
Ex db ia IIC T6...T1 Ga/Gb, Gb
9,6...35VDC

DEVICE DESCRIPTION 2
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Category 2G equipment (EPL-Ga equipment)
The devices are installed in hazardous areas requiring equipment category 2G.
2.5 Protection types
The pressure transmitter is designed in protection type flameproof enclosure with internal
intrinsically safe circuits "db ia" according to EN 60079-1/EN 60079-11 and IEC 60079-1 /
IEC 60079-11, however the device does NOT require an intrinsically safe supply.
The marking according to ATEX is:
II 1/2G, 2G Ex db ia IIC T6...T1 Ga/Gb, Gb
The marking according to IECEx is:
Ex db ia IIC T6...T1 Ga/Gb, Gb
The marking contains the following information:
II Explosion protection, group II
GGas explosion protection
Ex db ia Flameproof enclosure with internal intrinsically safe circuits
IIC Gas group, suitable for gas groups IIC, IIB and IIA
1/2 Equipment category 1/2
2Equipment category 2
Ga/Gb EPL, suitable for zone 0 / zone 1
Gb EPL, suitable for zone 1
T6...T1 Temperature class T6 suitable for temperature classes T6, T5
Temperature class T4 suitable for temperature classes T4, T3, T2, T1
Table 2-1: Types of protection

2 DEVICE DESCRIPTION
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2.6 Ambient temperature / temperature classes
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with integrated electronics Z (4…20 mA),
H (4…20 mA/HART) or A (4…20 mA/HART® with SIL qualification), P (Profibus PA), F (Foundation
Fieldbus), S, T (electronic differential pressure measurement).
The maximum permissible ambient temperatures depending on the temperature classes are
specified in the following tables.
Category 1/2G (EPL Ga/Gb) equipment
For applications requiring equipment category 1/2G, the process pressure of the media must be
between 0.8…1.1 bar. With the stated permissible ambient temperatures, the 80% consideration
of section 6.4.2/EN 1127-1 is taken into account. If OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are
operated at temperatures higher than those specified in the table above, please make sure by
means of appropriate measures that there is no danger of ignition from the hot surface. The
maximum permissible temperature of the electronics/housing should not exceed the values
given in the table above. The application conditions in areas without hazardous mixtures are
specified in the manufacturer information.
Category 2G (EPL Gb) equipment
OPTIBAR PC 5060, OPTIBAR PM 5060 with metallic-ceramic measuring cell
Temperature class Ambient temperature range at the electronics (zone
1)
Media temperature range
at the sensor (zone 0)
Housing lid without
inspection window
Housing lid with
inspection window
T6 -60...+60°C / -76...+140°F -50...+60°C / -58...+140°F -20...+23°C / -4...+73.4°F
T5, T4, T3, T2, T1 -60...+70°C / -76...+158°F -50...+70°C / -58...+158°F -20...+60°C / -4...+140°F
Table 2-2: Application for category 1/2G equipment
Temperature class Ambient temperature range at the electronics (zone
1)
Media temperature range
at the sensor (sensor,
zone 0)
Housing lid without
inspection window
Housing lid with
inspection window
T6 -60...+60°C / -76...+140°F -50...+60°C / -58...+140°F -50...+39°C / -58...+102.2°F
T5 -60...+70°C / -76...+158°F -50...+70°C / -58...+158°F -50...+100°C / -58...+212°F
T4 -60...+50°C / -76...+122°F -50...+50°C / -58...+122°F -50...+135°C / -58...+275°F
T3, T2, T1 -60...+50°C / -76...+122°F -50...+50°C / -58...+122°F -50...+200°C / -58...+392°F
Table 2-3: Application for category 2G equipment OPTIBAR PC 5060, OPTIBAR PM 5060 with metallic-ceramic measuring cell

DEVICE DESCRIPTION 2
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Category 2G (EPL Gb) equipment
OPTIBAR PM 5060 with piezoresistive or strain gauge measuring cell without cooling fins
Category 2G (EPL Gb) equipment
OPTIBAR PM 5060 with piezoresistive or strain gauge measuring cell with cooling fins
If OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are operated at temperatures higher than those
specified in the table above, please make sure by means of appropriate measures that there is
no danger of ignition from the hot surface. The maximum permissible temperature of the
electronics/housing should not exceed the values given in the table above. The application
conditions in areas without hazardous mixtures are specified in the manufacturer information.
Temperature class Ambient temperature range at the electronics (zone
1)
Media temperature range
at the sensor (sensor;
zone 0)
Housing lid without
inspection window
Housing lid with
inspection window
T6 -60...+60°C / -76...+140°F -50...+60°C / -58...+140°F -50...+39°C / -58...+102.2°F
T5 -60...+70°C / -76...+158°F -50...+70°C / -58...+158°F -50...+85°C / -58...+185°F
T4 -60...+40°C / -76...+104°F -50...+40°C / -58...+104°F -50...+105°C / -58...+221°F
T3, T2, T1 -60...+30°C / -76...+86°F -50...+30°C / -58...+86°F -50...+120°C / -58...+248°F
Table 2-4: Application for category 2G equipment OPTIBAR PM 5060 with piezoresistive or strain gauge measuring cell without cooling
fins
Temperature class Ambient temperature range at the electronics (zone
1)
Media temperature range
at the sensor (sensor;
zone 0)
Housing lid without
inspection window
Housing lid with
inspection window
T6 -60...+60°C / -76...+140°F -50...+60°C / -58...+140°F -50...+39°C / -58...+102.2°F
T5 -60...+70°C / -76...+158°F -50...+70°C / -58...+158°F -50...+85°C / -58...+185°F
T4 -60...+50°C / -76...+122°F -50...+50°C / -58...+122°F -50...+120°C / -58...+248°F
T3, T2, T1 -60...+40°C / -76...+104°F -50...+40°C / -58...+104°F -50...+150°C / -58...+302°F
Table 2-5: Application for category 2G equipment OPTIBAR PM 5060 with piezoresistive or strain gauge measuring cell with cooling fins

2 DEVICE DESCRIPTION
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2.6.1 Temperature derating
INFORMATION!
Valid for use as equipment of category 2G or zone 1.
OPTIBAR PC 5060 (130°C / 266°F)
Figure 2-3: Temperature derating
1 Ambient temperature of housing
2 Process temperature
OPTIBAR PC 5060 (150°C / 302°F)
Figure 2-4: Temperature derating
1 Ambient temperature of housing
2 Process temperature

DEVICE DESCRIPTION 2
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OPTIBAR 5060
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OPTIBAR PM 5060
Figure 2-5: Temperature derating
1 Ambient temperature housing
2 Process temperature
3 Metallic-ceramic measuring cell, process temperature max. 150°C / 302°F
4 Metallic-ceramic measuring cell, process temperature max. 180°C / 356°F
5 Metallic-ceramic measuring cell, process temperature max. 200°C / 393°F
6 Piezoresistive or strain gauge measuring cell, process temperature without cooling fins max. 105°C / 221°F
7 Piezoresistive or strain gauge measuring cell, process temperature with cooling fins max. 150°C / 302°F

2 DEVICE DESCRIPTION
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2.7 Electrical data
2.7.1 With electronics Z (4…20 mA), H (4…20 mA/HART®), A (4…20 mA/HART® with SIL
qualification)
The metallic parts of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are electrically connected with
the ground terminals.
The supply and signal circuit is reliably isolated from parts which can be grounded by a galvanic
isolation.
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with electronics Z (4…20 mA), H (4…20 mA/HART®),
A (4…20 mA/HART® with SIL qualification), version with single chamber housing A, V
Supply and signal circuit:
(Terminals 1[+], 2[-] in electronics
compartment)
•Ui = 9.6...35 VDC
•Um = 253 VAC
Display and adjustment circuits:
(terminals 5, 6, 7, 8) For connection of an OPTIBAR * 5060 in protection type flameproof enclosure "Ex db ia" with integrated electronics S
or T as electronic differential pressure measurement.
Circuit for the display and adjustment
module: (spring contacts in the
electronics compartment)
For connection to the display and adjustment module.
Table 2-6: Electrical data for OPTIBAR * 5060 with electronics Z, H, A, version with single chamber housing A, V
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with electronics Z (4…20 mA), H (4…20 mA/HART®),
A (4…20 mA/HART® with SIL qualification), version with double chamber housing D, W
Supply and signal circuit:
(Terminals 1[+], 2[-] in terminal
compartment
•Ui = 9.6...35 VDC
•Um = 253 VAC
Display and adjustment circuits:
(terminals 5, 6, 7, 8) For connection of an OPTIBAR * 5060 in protection type flameproof enclosure "Ex db ia" with integrated electronics S
or T as electronic differential pressure measurement.
Circuit for the display and adjustment
module: (spring contacts in the
electronics compartment)
For connection to the display and adjustment module.
Table 2-7: Electrical data for OPTIBAR * 5060 with electronics H, A, version with double chamber housing D, W

DEVICE DESCRIPTION 2
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2.7.2 With electronics P (Profibus PA), F (Foundation Fieldbus)
The metallic parts of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are electrically connected with
the ground terminals.
The supply and signal circuit is reliably isolated from parts which can be grounded by a galvanic
isolation.
2.7.3 With electronics S or T for electronic differential pressure measurement
The metallic parts of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are electrically connected with
the ground terminals.
The supply and signal circuit is reliably isolated from parts which can be grounded by a galvanic
isolation.
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with electronics P (Profibus PA), F (Foundation
Fieldbus), version with single chamber housing A, V
Supply and signal circuit:
(Terminals 1[+], 2[-] in electronics
compartment)
•Ui = 9...32 VDC
•Um = 253 VAC
Display and adjustment circuits:
(terminals 5, 6, 7, 8) For connection of an OPTIBAR * 5060 in protection type flameproof enclosure "Ex db ia" with integrated electronics S
or T as electronic differential pressure measurement.
Circuit for the display and adjustment
module: (spring contacts in the
electronics compartment)
For connection to the display and adjustment module.
Table 2-8: Electrical data for OPTIBAR * 5060 with electronics P, F, version with single chamber housing A, V
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with electronics P (Profibus PA), F (Foundation
Fieldbus), version with double chamber housing D, W
Supply and signal circuit:
(Terminals 1[+], 2[-] in terminal
compartment
•Ui = 9...32 VDC
•Um = 253 VAC
Display and adjustment circuits:
(terminals 5, 6, 7, 8) For connection of an OPTIBAR * 5060 in protection type flameproof enclosure "Ex db ia" with integrated electronics S
or T as electronic differential pressure measurement.
Circuit for the display and adjustment
module: (spring contacts in the
electronics compartment)
For connection to the display and adjustment module.
Table 2-9: Electrical data for OPTIBAR * 5060 with electronics P, F, version with double chamber housing D, W
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with electronics S or T
Supply and signal circuit:
(Terminals 5,6,7,8 in electronics
compartment)
For connection to an
OPTIBAR * 5060 VGK5/6/D*A/W/V E with integrated
electronics H (4…20 mA/HART®), A (4…20 mA/HART® with SIL
qualification), P (Profibus PA), F (Foundation Fieldbus) for
electronic differential pressure measurement
Table 2-10: Electrical data for OPTIBAR * 5060 with electronics S, T

2 DEVICE DESCRIPTION
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2.7.4 With electronics H (4…20 mA/HART®) or A (4…20 mA/HART® with SIL qualification
and additional electronics Z (second current output)
The metallic parts of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are electrically connected with
the ground terminals.
The supply and signal circuit is reliably isolated from parts which can be grounded by a galvanic
isolation.
2.7.5 With separate cable outlet
The metallic parts of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 are electrically connected with
the ground terminals.
The supply and signal circuit is reliably isolated from parts which can be grounded by a galvanic
isolation.
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with electronics H (4…20 mA/HART®),
A (4…20 mA/HART® with SIL qualification), version with double chamber housing D, W and
additional electronics Z (second current output)
Supply and signal circuit I:
(Terminals 1[+], 2[-] in terminal
compartment)
•Ui = 9.6...35 VDC
•Um = 253 VAC
Supply and signal circuit II:
(Terminals 7[+], 8[-] in terminal
compartment)
•Ui = 9.6...35 VDC
•Um = 253 VAC
Circuit for the display and adjustment
module (spring contacts in the
electronics compartment):
For connection to the display and adjustment module.
Table 2-11: Electrical data for OPTIBAR * 5060 with electronics H, A, version with double chamber housing D, W with
additional electronics Z
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 version with separate cable outlet
(all electronics)
Circuit between probe unit and external
electronics
(terminal 1 - yellow,
terminal 2 - white, terminal 3 - red,
terminal 4 - black)
In protection type intrinsic safety Ex ia IIC
For the OPTIBAR * 5060 VGK5/6/D*A/W/V E in the version with
the permanently mounted cable to the probe unit and external
electronics, the length of the supplied cable between the
external housing and the probe unit should not exceed 180 m.
Table 2-12: OPTIBAR * 5060 version with separate cable

INSTALLATION 3
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3.1 Installation
Mounting and setup must be carried out according to the applicable installation standards
(e.g. EN 60079-14 or IEC 60079-14) by qualified personnel trained in explosion protection.
The information given in the manuals and the supplementary instructions must be observed at
all times.
Install pressure transmitters so that:
•the process connections are connected tightly to the process?
•they are not in a pneumatic flow.
•excessive dust deposits (over 5 mm) and complete dust coverage are prevented.
•there is no danger from mechanical impact effects.
CAUTION!
The manufacturer is not liable for any damage resulting from improper use or use other than the
intended purpose. This applies in particular to hazards due to insufficient corrosion resistance
and suitability of the materials in contact with product.

4 SPECIAL CONDITIONS
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4.1 Protection against static electricity
The OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 in versions with electrostatically chargeable
plastic parts, such as e.g. metal housing with inspection window, with plastic-coated sensors,
suspension cable or suspension hose, distance tube or connection cable with the remote
version, a caution label points out the safety measures that must be taken with regard to
electrostatic charges during operation.
Caution: Plastic part! Risk of electrostatic charge!
•Avoid friction
•No dry cleaning
•Do not mount in areas with flowing, non-conductive products
4.2 Use of an overvoltage arrester
If necessary, a suitable overvoltage arrester can be connected in front of the OPTIBAR * 5060
VGK5/6/D*A/W/V E/Z/6/7. When used as equipment category 1/2G, as far as necessary analogue,
a suitable overvoltage arrester must be connected in front as protection against voltage surges
according to EN 60079-14 or IEC 60079-14 Chapter 12.3.
4.3 Grounding
The "Ex-db" terminal compartment of the OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 contains a
safety barrier that is not a galvanic isolation. For safety reasons, the intrinsically safe circuits
must be grounded. The external / internal ground terminal on the housing of the
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 must be connected to the equipotential bonding at low
resistance.
4.4 Impact and friction sparks
When used as category 1/2G equipment, the OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 in light
alloy (aluminium/titanium) versions must be mounted in such a way that sparks from impact and
friction between light alloy and steel (except stainless steel, if the presence of rust particles can
be excluded) cannot occur.
4.5 Material resistance
With applications requiring equipment category 1/2G, the OPTIBAR * 5060 VGK5/6/D*A/W/V
E/Z/6/7 must only be used in products against which the wetted materials are sufficiently
resistant.
Figure 4-1: Warning sign
WARNING- POTENTIAL ELECTROSTATIC
CHARGING HAZARD - SEE INSTRUCTION

SPECIAL CONDITIONS 4
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OPTIBAR 5060
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4.6 Mounting / setup
The OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 must be mounted such that the sensor is
effectively secured against touching the tank wall, under consideration of other tank
installations and flow conditions in the tank. This applies especially to suspension pressure
transmitters and versions with distance tube lengths over 3 m.
4.7 Protection type flameproof enclosure Ex "db"
The terminals for connecting to the operating voltage, i.e. signal circuits, are integrated in the
terminal compartment according to protection type flameproof enclosure "db".
The gaps between housing and cover as well as between threaded fitting and container are
ignition-proof gaps.
The flameproof joints are not intended to be repaired.
The joint surfaces are not coated with paint or are not powder coated.
The "Ex-db" electronics compartment has an M20 x 1.5 or 1/2-14 NPT thread for the connection
of a certified "conduit" system or for the installation of an "Ex-db" cable entry certified according
to EN 60079-1 or IEC 60079-1. Simple cable entries should not be used. Refer to sections 13.1
and 13.2 of EN 60079-1 or IEC 60079-1. When connecting to a "conduit" system, an appropriate
sealing mechanism must be located directly on the "Ex-db" electronics compartment.
As an option, a certified "Ex-db" cable entry can be supplied from the factory. Depending on the
type ordered, it is suitable for the insertion of reinforced or non-reinforced cables.
The document supplied with the corresponding cable entry must be observed.
The "Ex-db" cable entry must be permanently screwed into the housing. The supplied cable
entry is suitable for the housing temperature range certified for the
OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7. If a cable entry other than the one supplied is used,
the separately certified cable entry or the temperature class at the electronics determines the
maximum permissible ambient temperature of the housing, depending on the permissible
temperature.
The screw plug (blind plug) supplied by the factory, depending on the type ordered, is part of the
"Ex-db" housing. If a screw plug other than the one supplied is used, it must be certified
according to EN 60079-1 or IEC 60079-1.
Ensure that before opening the "Ex-db" terminal compartment and when the cover of the
compartment is open (e. g. when connecting or servicing) the supply line is de-energised or that
there is no explosive atmosphere present.
The connecting cable to the "Ex-db" electronics compartment must be fixed and laid so that it is
sufficiently protected against damage. Lay the connecting cable in accordance with EN 60079-14
or IEC 60079-14.
The connecting cables, cable entries and screw plugs or pipeline sealing mechanisms must be
suitable for the lowest ambient temperature.
Prior to start-up, ensure that the cover of the "Ex-db" electronics compartment is screwed in all
the way until it stops. Secure it by unscrewing the locking screw of the cover until it stops.

4 SPECIAL CONDITIONS
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OPTIBAR 5060
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Unused openings must be sealed according to EN 60079-1 or IEC 60079-1 section 11.9.
The cover of the "Ex-db" electronics compartment has the warning label "Do not open when an
explosive gas atmosphere is present".
Single chamber housing with "Ex-db" electronics compartment
Figure 4-2: Single chamber housing with "Ex-db" electronics compartment
1 Thread protection
2 Locking screw of the cover
3 Lock screw
4 Marking of the thread
5 "Ex-db" electronics compartment with electronic insert
6 Optionally with sight window
7 External ground terminal
Double chamber housing with "Ex-db" electronics compartment
Figure 4-3: Double chamber housing with "Ex-db" electronics compartment
1 Thread protection
2 Locking screw of the cover
3 Lock screw
4 Marking of the thread
5 "Ex-db" electronics compartment with electronics module
6 Optionally with sight window
7 External ground terminal
8 "Ex-db" terminal compartment

SPECIAL CONDITIONS 4
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OPTIBAR 5060
www.krohne.com11/2020 - 4004172603 - AD OPTIBAR5060 Exdbia R04 en
4.8 Mounting of the OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with remote
housing
With the version with remote housing of the pressure transmitter OPTIBAR * 5060
VGK5/6/D*A/W/V E/Z/6/7 the equipotential bonding must be provided in the complete mounting
area of the connection cable between electronics housing and probe housing.
4.9 Size and type of thread for the "Ex-db" cable entries
The "Ex-db" terminal compartment of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with cable entry
type 0, D or 6 has cable entries M20 x 1.5.
The "Ex-db" terminal compartment of OPTIBAR * 5060 VGK5/6/D*A/W/V E/Z/6/7 with cable entry
type N, 8 or P has cable entries 1/2-14 NPT.
4.10 Removal and replacement of the red thread/dust cover
Depending on the version, the thread or dust covers that are screwed in upon delivery of the
device must be removed prior to start-up. Permitted and suitable cable glands or blind plugs
must be installed in accordance with the supplied documentation.
Figure 4-4: Arrangement of the thread/dust cover
1 The red thread or dust cover must be removed prior to start-up. The openings must be closed prior to start-up using
a method permitted for the protection type.

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and process analytics
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Ludwig-Krohne-Str. 5
47058 Duisburg (Germany)
Tel.: [phone]
Fax: [phone]
[email protected]
© KROHNE 11/2020 - 4004172603 - AD OPTIBAR5060 Exdbia R04 en - Subject to change without notice.
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