KROHNE SMARTMAC 200 W Wiring diagram

Display and operating unit for
SMARTPAT PH/ORP/COND sensors
Intrinsically safe
Equipment protection level Gb
Ex ia IIC T4
SMARTMAC 200 W
SMARTMAC 200 WSMARTMAC 200 W
SMARTMAC 200 W Supplementary Instructions
Supplementary InstructionsSupplementary Instructions
Supplementary Instructions
© KROHNE 09/2017 - 4005599202 - AD Ex SMARTMAC 200 en R02

CONTENTS
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SMARTMAC 200 W
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EU conformity ................................................................................................................... 3
1.3 Approval according to the IECEx scheme ........................................................................ 3
1.4 Approval according to North-America standards ........................................................... 4
1.5 Safety instructions............................................................................................................ 4
2 Device description 5
2.1 Device description ............................................................................................................ 5
2.2 Marking SMARTMAC 200 W.............................................................................................. 6
2.3 Approval for zone classified locations ............................................................................. 7
2.4 Approval for division classified locations......................................................................... 8
2.5 Temperature classes........................................................................................................8
2.6 Electrical data................................................................................................................... 9
3 Installation 10
3.1 Installation...................................................................................................................... 10
4 Electrical connections 11
4.1 General notes ................................................................................................................. 11
4.2 Power supply .................................................................................................................. 12
4.3 Grounding and equipotential bonding............................................................................ 13
5 Operation 14
5.1 Start-up........................................................................................................................... 14
5.2 Operation ........................................................................................................................ 14
5.3 Electrostatic charge .......................................................................................................14
6 Service 15
6.1 Maintenance ................................................................................................................... 15
6.2 Dismantling .................................................................................................................... 15

SAFETY INSTRUCTIONS 1
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1.1 General notes
These supplementary instructions apply to versions of the loop powered
display and operating unit for use in hazardous areas that fall in intrinsically safe protection type
"i", equipment category II 2 G or EPL Gb. It complements the standard documentation for
versions for use in non-hazardous areas.
The information given in these instructions contains only the data relevant to explosion
protection. The technical details given in the standard documentation for the non-explosion
protected versions remain unchanged unless they will be excluded or replaced by this
instruction.
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 for use in hazardous areas with gas.
Conformity with harmonised standards was checked by a notified body in accordance with
EN 60079-0:2012 and EN 60079-11:2012.
The EU declaration of conformity for the equipment category II 2G is based on the following EU
type examination certificate:
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these instructions.
If necessary, the EU type examination certificate can be downloaded from the manufacturer's
website.
1.3 Approval according to the IECEx scheme
Conformity for use in hazardous areas with gas was tested in accordance with the IECEx
Certification Scheme for Explosive Atmospheres acc. to IEC 60079-0: 2011 and IEC 60079-11:
2011.
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.
KIWA 16 ATEX 0027 X
KIWA 16 ATEX 0027 XKIWA 16 ATEX 0027 X
KIWA 16 ATEX 0027 X
IECEx KIWA 16.0011 X
IECEx KIWA 16.0011 XIECEx KIWA 16.0011 X
IECEx KIWA 16.0011 X

1 SAFETY INSTRUCTIONS
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1.4 Approval according to North-America standards
Equipment testing through QPS certifies that the equipment complies with applicable
CSA and ANSI/ISA standards. The product is eligible to bear the QPS mark shown with adjacent
indicators "C" and "US" for Canada and the USA. The number of the QPS certificate is:
You can download the QPS certificate from the manufacturer's website. The accompanying
control drawing is included when the equipment is delivered.
1.5 Safety instructions
If these instructions are not followed, there is a risk of explosion.
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
This product shall be used in explosive atmospheres together with approved associated
equipment. Follow the instruction manual for the loop powered display and operating unit of the
associated equipment when connecting.
The connecting cable between the loop powered display and operating unit and the associated
equipment should be an insulated shielded cable; connect the shield to functional earth in a safe
area.
QPS LR1322-6.
QPS LR1322-6.QPS LR1322-6.
QPS LR1322-6.
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. This applies in particular to
the use of easily detachable process connections when measuring flammable media.
WARNING!
The user shall not change the configuration in order to maintain/ensure the explosion protection
performance of the display.
WARNING!
For use and maintenance in explosive atmospheres, observe the warning "POTENTIAL
ELECTROSTATIC CHARGING HAZARD - see chapter 5.3".
CAUTION!
Operating conditions and place of installation may require compliance with additional standards,
directives or laws. The responsibility for compliance rests solely with the operator or his agent.

DEVICE DESCRIPTION 2
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2.1 Device description
The loop powered display and operating unit is not only used to display measurements values on
site but also to configure and calibrate sensors.
Figure 2-1: Device description (left - die-cast aluminium / right - stainless steel)
1 Display
2 Operation keys
3 Cable glands

2 DEVICE DESCRIPTION
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2.2 Marking SMARTMAC 200 W
Figure 2-2: Example of a nameplate on the indicator body
1 Manufacturer
2 Device name
3 CE marking
4 Ex marking
5 China RoHS,
Data matrix code (serial number),
Electronic / Electric device waste marking,
Observe the operation and installation instruction
6 Power supply data,
Ingress protection
Parameter of measuring unit
7 Order code,
Manufacturing date,
Internet address of manufacturer
8 Electronic revision,
Serial number
9 Production order
-
20...30 VDC
IP66/67 NEMA 4/4X
PH
INFORMATION!
Look at the device nameplate to ensure that the device is in accordance with your order.

DEVICE DESCRIPTION 2
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2.3 Approval for zone classified locations
The device meets the requirements of IEC 60079-11 for protection type "Intrinsic Safety".
Explosion protection is ensured by limiting the current and voltage so that no ignitable energy
can occur. The equipment protection level (EPL) Gb enables use in areas classified as
Zone 1...Zone 2.
The marking of the display in accordance with the requirements of the ATEX directive is as
follows:
II 2 G Ex ia IIC T4 Gb
II 2 G Ex ia IIC T4 GbII 2 G Ex ia IIC T4 Gb
II 2 G Ex ia IIC T4 Gb
The marking of the display in accordance with the requirements of the IECEx scheme is as
follows:
Ex ia IIC T4 Gb
Ex ia IIC T4 GbEx ia IIC T4 Gb
Ex ia IIC T4 Gb
The marking of the display in accordance with the Canadian and US requirements for Zone
classified locations in accordance with NEC 505 (National Electrical Code) is as follows:
Ex ia IIC T4 Gb / Class I, Zone 1 AEx ia IIC T4 Gb
Ex ia IIC T4 Gb / Class I, Zone 1 AEx ia IIC T4 GbEx ia IIC T4 Gb / Class I, Zone 1 AEx ia IIC T4 Gb
Ex ia IIC T4 Gb / Class I, Zone 1 AEx ia IIC T4 Gb
Components of the Ex marking and their definition
II
IIII
II Group II classified equipment
2
22
2Equipment category 2
G
GG
GGas explosion protection
Ex ia
Ex iaEx ia
Ex ia Equipment protection by intrinsic safety, level of protection ia
IIC
IICIIC
IIC Gas group IIC approved, suitable for gas groups IIA, IIB, IIC
T4
T4T4
T4 Temperature class T4 approved, suitable for T4...T1
Gb
GbGb
Gb EPL Gb approved, suitable in Zone 1...Zone 2
Components of the Ex marking and their definition
Class I
Class IClass I
Class I Gas explosion protection
Ex ia
Ex iaEx ia
Ex ia Equipment protection by intrinsic safety, level of protection ia
Zone 1 AEx
Zone 1 AExZone 1 AEx
Zone 1 AEx Zone 1 approved according to US standards
IIC
IICIIC
IIC Gas group IIC approved, suitable for gas groups IIA, IIB, IIC
T4
T4T4
T4 Temperature class T4 approved, suitable for T4...T1
Gb
GbGb
Gb EPL Gb approved, suitable in Zone 1...Zone 2

2 DEVICE DESCRIPTION
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2.4 Approval for division classified locations
In type of protection "Intrinsic Safety" the device meets the requirements of Canadian and US
standards for the Division concept according to NEC 500. The explosion protection is ensured by
limitation of the current and voltage so that no ignitable energy can occur.
The marking of the display in accordance with the requirements of the applicable National
Electrical Code (NEC 500) and the Canadian Electrical Code (CEC) is as follows:
IS Class I, Division 1, Groups A, B, C, D, T4
IS Class I, Division 1, Groups A, B, C, D, T4IS Class I, Division 1, Groups A, B, C, D, T4
IS Class I, Division 1, Groups A, B, C, D, T4
2.5 Temperature classes
The permissible temperature range of the device for use in temperature class T4...T1 is:
The maximum permissible temperature is valid under the following conditions:
•The device is operated in its intended mounting position.
•The device is not exposed to heat radiation (e.g. direct sunlight, adjoining hot parts).
•Insulation does not obstruct the ventilation of the device.
Components of the Ex marking and their definition
IS
ISIS
IS Intrinsically safe equipment
Class I
Class IClass I
Class I Explosion protection for gas
Division 1
Division 1Division 1
Division 1 Division 1 approved, suitable for Division 1, Division 2
Groups A, B, C,
Groups A, B, C,Groups A, B, C,
Groups A, B, C,
D
DD
D
Gas groups A, B, C and D approved
T4
T4T4
T4 Temperature class T4 approved, suitable for T4...T1
Temperature-
class
Permissible ambient temperature in
[°C]
Permissible ambient temperature in
[°F]
T4...T1 -40...+55°C-40...+131°F

DEVICE DESCRIPTION 2
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2.6 Electrical data
Connect the device only to intrinsically-safe certified circuits. Observe the following maximum
values for the display when connecting:
•U
i
=30V
•I
i
= 120 mA
•P
i
=1W
•L
i
=0mH
•C
i
=45nF
CAUTION!
The capacity and inductance of the connecting cable between the supply device, display and
operating unit and connected sensor as well as the capacity and inductance of the sensor must
also be taken into account.
WARNING!
Also, when operating the indicators outside of the hazardous area, the connection must be made
to an intrinsically safe circuit. When connecting to non-intrinsically safe circuits, there is a risk
of damage to the safety-defining components.

3 INSTALLATION
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3.1 Installation
DANGER!
Installation and setup must be carried out according to the applicable installation standards
(e.g. EN 60079-14) by qualified personnel trained in explosion protection. Observe the
information contained in the manuals and the supplementary instructions. The installation must
always comply with the following requirements:
• No external forces are affecting the display.
• The device is accessible for any necessary visual inspections and can be viewed from all
sides.
• The nameplate is clearly visible.
• It can be operated from a location with secure footing.

ELECTRICAL CONNECTIONS 4
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4.1 General notes
The intrinsically safe equipment is electrically connected in the display and operating unit. The
circuit is designed in protection type "intrinsically safe" and galvanically isolated from ground
(test voltage ≥500 V
eff
).
In order to avoid risks, always observe the following points when electrically connecting a device:
•Ensure that all connecting cables conform to the valid installation standards (e.g. IEC 60079-
14) and withstand the maximum operating temperature.
•Securely lay the connecting cables and sufficiently protect them against damage.
•Securely connect all the cores not in use with the ground potential of the explosive area or
carefully insulate them from each other and from ground (test voltage ≥500V
eff
).
•Supplied blind plugs / cable entries guarantee protection against foreign objects and water
(protection category) IP66 / 67 according to EN 60529.
•The outer diameter of the connecting cable must be within the sealing range of the cable
entry (8...13 mm / 0.31...0.51").
•Unused cable entries are to be closed (>IP66 / 67).
Ensure that the gaskets and incised gasket ring are tight.

4 ELECTRICAL CONNECTIONS
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4.2 Power supply
The device does not require a separate power supply. The necessary supply for the display and
operating unit and connected sensor comes via the current output 4...20 mA (loop powered).
The cable parameters are determined by the parameters of the system to which the loop
powered display and operating unit and sensor are to be connected.
WARNING!
Substitution of components may impair intrinsic safety.
Figure 4-1: Overview terminal connections 4...20 mA input for Ex-approved device.
1 I.S. certified barrier, power supply
2 Current output signal 4...20 mA
3 Terminal connectors SMARTMAC 200 W
4 I.S. certified sensor
INFORMATION!
The device is galvanically isolated from ground and can be placed anywhere within the loop.

ELECTRICAL CONNECTIONS 4
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4.3 Grounding and equipotential bonding
If the device is not sufficiently electrostatically grounded via mounting, a ground connection
must be established using the ground terminal 1. The position of the ground terminal is
illustrated below.
Figure 4-2: Terminal compartment
1 Ground connection
SENSOR SHIELD SENSOR + SENSOR - LOOP - LOOP + LOOP +

5 OPERATION
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5.1 Start-up
Start-up may only occur when the display and operating unit:
•is correctly installed in the system and connected.
•has been checked for the proper state with regard to its installation and connection
requirements.
The user of the system must have it checked before start-up in compliance with the national
regulations for checks before startup.
5.2 Operation
The display and operating unit must be operated in such a way that it remains within the
maximum and minimum permissible temperatures and the electrical limit values.
The display and operating unit may only be operated if the equipment parts necessary for safety
are effective in the long run, and are not rendered inoperable during operation.
The display and operating unit may be operated during operation.
The display and operating unit (protection type intrinsic safety) may even be opened in an
energised state in hazardous areas. Work on electrical connections (e.g. configuration via the
HART
®
interface) is also permitted in an energised state. Close the terminal compartment
immediately after work has been completed.
5.3 Electrostatic charge
In order to avoid ignition hazards due to electrostatic charge, painted display and operating units
shall not be used in areas with:
•processes that generate strong charges,
•mechanical friction and cutting processes,
•spraying of electrons (e.g. in the vicinity of electrostatic painting systems).
•pneumatically conveyed dust is exposed.
WARNING!
Electrostatic charging of the housing surface by friction must be avoided.
The display shall be cleaned only with a moist cloth.

SERVICE 6
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6.1 Maintenance
Maintenance work of a safety-relevant nature within the meaning of explosion protection may
only be carried out by the manufacturer, his authorised representative or under the supervision
of authorised inspectors.
For systems in hazardous areas, regular checks are required in order to maintain the proper
condition.
The following checks are recommended:
•Check the housing, the cable entries and the feed lines for corrosion and/or damage.
Close the cover once maintenance work on the display and operating unit has been completed.
6.2 Dismantling
In order to prevent injury or material damage when replacing the display, always observe the
following points:
•Before dismantling the electrical connecting lines of the device, ensure that all the cables
leading to the display are de-energised themselves and to the reference potential of the
explosive area.

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• Level
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Head Office KROHNE Messtechnik GmbH
Ludwig-Krohne-Str. 5
47058 Duisburg (Germany)
Tel.: [phone]
Fax: [phone]
[email protected]
© KROHNE 09/2017 - 4005599202 - AD Ex SMARTMAC 200 en R02 - Subject to change without notice.
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www.krohne.com