Spirax Sarco 2200 Series User manual

EXPER
TISE SOLUTIONS SUST
AINABILITY
3.752.5275.201
© Copyright 2012
EMM Issue 11 - 2018
2200 series HEP Sensilevel
oat operated level controls
with sealed chamber
Installation and Maintenance Instructions
1. Safety information
2. Technical information
3. Installation
4. Differential and switching
levels setting
(Electric Switches 2 and 3)
5. Switch mechanism
replacement
6. Switch replacement
7. Maintenance
8. Trouble shooting
9. ATEX Conformity
Housing
Enclosing tube
Connections to
the equipment
Float
chamber

3.752.5275.201
2

3.752.5275.201
3
1. Safety information
Asafe operation of SENSILEVELproducts is assured when they are properly installed, commissioned,
used and maintained by qualied personnel according to the operation instructions (see section
11 of present instruction paper). Compliance with installation and safety general instructions must
also be observed during piping and plant erection together to an appropriate use of equipment and
facilities for safety.
Note: products supplied by Spirax Sarco are classied as components and, it general, they
aren't subjected to the European Machinery Directive 2006/42/EC.
1.1 Type of Application
The suitability of Sensilevel has to be veried for the specic usage and application according to
product tag and technical specications and to installation and maintenance instructions. The products
of the below indicated list comply with the requirements of the European Directive 2014/68/EU
(Pressure Equipment Directive - PED) and are marked. They pertain to the following categories
of the Pressure Equipment Directive.
Product Gas / Liquid
Group 1 e 2
2202A - 2202B 2
2206A - 2207A 2
2206B - 2207B - 2207C - 2207D 3
I) Products have been specically designed for hazardous and not hazardous uids that are
included in Group 1 and 2 of the above mentioned European Directive.
II) Verify suitability of material and the minimum and maximum values of pressure and temperature.
If the maximum operating limit conditions of the product are lower than those of the system
where it has to be used or if an improper operation of the product might cause a dangerous
excess of pressure and temperature, make sure to include in the system a safety device to
prevent limits overcoming.
III) Determine the correct position of the installation and the ow direction of the uid.
IV) Our products cannot cope with external stress induced by the system in which they operate.
The installer is responsible of stress analysis and of adequate precautions to be taken in order
to minimize the external stress.
V) Remove protective covers from all connections prior to installation.
1.2 Accessibility
Ensure safe access and, if necessary, a work platform before starting to work on the product. Use
suitable lifting mechanisms as necessary.
1.3 Lighting
Ensure sufcient lighting, particularly where detailed work or work in poorly accessible areas is required.
1.4 Dangerous gases or liquids present in the pipeline
Take account of pipeline content or what it may have recently contained. Pay attention to: inammable
materials, substances dangerous to health, temperature extremes.
1.5 Dangerous environmental situations and area
Take account of areas at risk of explosion, lack of oxygen (e.g. tanks or pits), dangerous gases,
temperature extremes, hot surfaces, re hazard (e.g. during welding), excessive noise, moving
machinery.
These products comply with the requirements of the European Directive 2014/34/EU (ATEX) for
the use of equipments in potentially explosive atmospheres.
In a classied area do not access the housing when powered and do not use tools that could
cause sparks.

3.752.5275.201
4
1.6 The system
Consider the possible effects of the planned work on the whole system. Some operations (e.g. closure
of isolation valves, electrical isolation) may put other parts of the system or staff at risk. Hazards may
include closure of vents or isolation of protective devices or compromise of commands or alarms.
Ensure that isolation valves are gradually turned on and off to avoid system shocks.
1. 7 Pressure
Ensure that all parts exposed to pressure are isolated or adequately vented to atmospheric pressure.
Consider double isolation (double block and venting) and blocking or labelling of closed valves.
Do not assume a system is de-pressurized even when the pressure gauge reads zero.
1.8 Temperature
To avoid the risk of burns, wait until temperature has normalised after isolation.
1.9 Equipment and consumable materials
Before starting work, ensure the availability of suitable equipment and/or consumable materials.
Use Spirax Sarco spare parts only.
1.10 Protective clothing
Consider whether you and/or other personnel need protective clothing, against for example chemical
products, high or low temperatures, noise, falling objects and hazards to eyes and face.
1.11 Permit of work
All works must be carried out or supervised by a competent staff, properly trained on product ope-
ration and maintenance. Should a formal authorization to work be required, this must be respected.
Otherwise, it is recommended that a manager is kept informed on work progress and, if necessary,
that an assistant with safety main responsibility is nominated. It is advisable to afx an hazard
warning poster.
1.12 Electrical works
Before starting work, study the electrical plan, connection instructions and any specic requirement.
Specically consider:
voltage and phase of external lines, isolation of local lines, fuse characteristics, earthling, special
cables, cable/cable guide inlet, electromagnetic shielding.
1.13 Material handling
The manual handling of large dimension and/or heavy material can cause risk of injury. Lifting,
pushing, pulling, holding up and transportation of a load by strength of arms could damage the back.
It is recommended to evaluate the risks by considering the assignment, the individual, the load and
the environment and to use an appropriate material handling method.
1.14 Other risks
During normal operation the product surface could be very hot. The surface temperature of some
products operating at limit conditions can reach a value of 200 °C.
Several products do not provide auto-drainage. Take it in account for their disassembly or removal
from the plant. (refer to ‘Maintenance instructions’).
1.15 Freezing
Provision must be made to protect products which are not self-draining against frost damage in
environments where they may be exposed to temperatures below freezing point.

3.752.5275.201
5
1.16 Disposal
Unless otherwise stated in the Installation and Maintenance Instructions, this product is recyclable
and no ecological hazard is anticipated with its disposal providing due care is taken.
1.17 Returning products
According to European Community laws on Health, Safety and Environmental Protection, upon
returning products for their testing and/or repairs to Spirax Sarco, customers and distributors are
reminded that they must supply the necessary information on hazards and precautions to be taken
with regard to the presence of contaminated product residues or instrument damage which may
present a health and/or environmental safety hazard. Information must be supplied in writing and
include instructions for any substance classied as hazardous.
1.18 Working safely with cast iron products on steam
Cast iron products are commonly found on steam and condensate systems. If installed correctly
using good steam engineering practices, it is perfectly safe. However, because of its mechanical
properties, it is less forgiving compared to other materials such as SG iron or carbon steel.
The following are the good engineering practices required to prevent waterhammer and ensure
safe working conditions on a steam system.
Safe Handling
Cast Iron is a brittle material. If the product is
dropped during installation and there is any
risk of damage the product should not be used
unless it is fully inspected and pressure tested
by the manufacturer.
Please remove label before commissioning
Prevention of water hammer
Steam trapping on steam mains:
30÷50 m. intervals
Gradient 1:100
Trap set
Condasate
Steam
Gradient 1:100
Trap set
Trap set
Steam
Condasate Condasate

3.752.5275.201
6
Steam Mains - Do's () and Dont's ( ):
Do not over tighten.
Use correct torque gures.
Flange bolts should be gradually tightened across
diameters to ensure even load and alignment.
Prevention of tensile stressing
Pipe misalignment:
Installing products or re-assembling after maintenance:

3.752.5275.201
7
Thermal expansion:
Examples showing the use of expansion bellows. It is highly recommended that expert advise is
sought from the bellows manufacturer.
Guides
Guides
Short
distance
Medium
distance
Guides
Fixing
point
Fixing
point
Axial
movement
Limit
rods
Guides
Small
lateral
movement
Small
lateral
movement
Large
lateral
movement
Large
lateral
movement
Limit
rods
Axial
movement

3.752.5275.201
8
2. Technical information
2.1 2200 series HEP Sensilevel oat operated level controls with
sealed chamber
This product is to be considered an accessory under pressure operating as a safety device and may
be used with both Group 1 and 2 uids. It has been designed, constructed and inspected according
to ASME VIII Div 1 and it is in accordance with provisions demanded from the European Directives
2014/68/EU (PED) and 2014/34/EU (ATEX).
2.2 Environmental conditions
Instruments with housing type 1 and 2 have temperature range from -10°C to +60°C in non-explosive
atmosphere.
Instruments with housing type 4 HEP have different temperature ranges according to the materials:
- From -20°C to +40°C for grey cast iron housing EN GJL 250
- From -45°C to +60°C for spheroidal cast iron housing EN GJS 350 22 LT
2.3 Identication plate
Each piece of equipment is supplied with an identication plate xed to the level’s body. This contains
all identifying data such as model, serial number, year of construction and also species the project
conditions, weight, volume, uid groups and categorization of equipment.
2.4 Dimensions (mm)
Model A D E F G H LNote: Housings can be
rotated through 360° except
for type 1 & 2 with pneumatic
switch and for type 4.
2202 A - B 183 251 79 167 356 340 178
2206 A - B 178 238 92 180 356 340 178
2207 A ÷ D 190 243 105 193 356 340 178 Type W
Connection
X*
mm
Y
mm
Z
mm
A increases of 100 mm with a cooling extension 1 and 2 Electric ¾" NPT 173 118 70 Pneumatic ¼" NPT 166 118 59
4 ¾" NPT 213 150 100
High
level
Low
level
High
level
Low
level
High
level
Low
level
High
level
Low
level
Connections: standard VH VV LL

3.752.5275.201
9
Fig. 3 - Wiring diagram of switch mechanism
Type 1 and 2 housing
(normal)
Fig. 2a
Type 4 housing
(explosion-proof)
Fig. 2b
Contact status as function of level
Close contact Open contact
Increasing
level 2-3 and 5-6 1-2 and 4-5
Decreasing
level 1 -2 and 4-5 2-3 and 5-6
Close
Open
CloseOpen
Locking screw
2.5 Switching levels as a function of specic gravity (mm)
(They refer to one only switch mechanism type 2-3)
Specic
Gravity
kg/dm3
0,35 0,42 0,50 0,55 0,56 0,60 0,63 0,70 0,80 0,90 1,00 1,10 1,20
Level
Model
B CB CB CB CB CB CB CB CB CB CB CB CB C
2202 A 52 81 55 82 62 88 67 92 76 100 87 109 95 116 102 122 107 127 112 130
2202 B 59 85 64 90 74 98 86 108 95 116 102 122 108 127 113 131
2206 A 71 98 77 102 80 86 109 93 114 98 119 102 122 105 125 108 127
2206 B 78 103 89 111 97 117 102 122 106 126 110 129
2207 A 48 77 63 89 74 98 79 102 80 103 83 105 85 107 90 111 95 116 99 119 102 122 105 124 107 127
2207 B 51 79 67 91 74 97 75 98 79 102 82 104 87 109 93 114 98 118 102 122 105 125 108 127
2207 C 53 80 64 89 66 90 72 96 76 99 83 105 91 112 97 118 102 122 106 126 109 129
2207 D 66 91 78 100 88 110 96 117 102 122 107 126 111 130
2.6 Electrical connections
Provide connections to switch mechanisms according to wiring diagrams shown in g.3. In order to
access the switch mechanism, remove the cover of the housing by unscrewing the top screw on the
standard housing (Fig. 2a). In case of an explosion-proof housing, loosen the cover locking screw
and unscrew the cover itself counterclockwise (Fig. 2b).
The base of the housing has a threaded connection. With exception of explosion-proof type 4, the
housing can be rotated through 360° by loosening the screw on the lower part.
The wires have to pass through the threaded connection, then in the dedicated space between the
base itself and the plate under the switch mechanism, and then connected to the terminal board
using appropriate wire terminals. Wires in excess have to be cut to avoid interference with the switch
mechanism or housing. Afterwards the threaded connection must be sealed to assure safety and
protection of the housing.
Check the coupling between base and cover and ensure that the seal gasket, if used depending on
the protection level required, is correctly mounted before re-closing the housing.
SPDT MECHANISM DPDT MECHANISM
EXTERNAL
CIRCUIT
EXTERNAL CIRCUIT

3.752.5275.201
10
2.7 Pneumatic connections (for pneumatic switches)
In order to obtain the required function from the pneumatic switch (3 way valve, 2 way valve, selec-
tor, switch) the instrument has to be connected to the pneumatic circuit using the below indicated
table and diagram.
Pipes must be connected to the ¼" NPT connections on the base of the housing. They are identied
with A, B and C and already connected within the housing to the 3 way pneumatic switch.
Fig. 4 - Pneumatic switch diagram
Contact status as a functional level
Connection 2 way
N.A.
2 way
N.C.
3 way
N.A.
3 way
N.C.
Aplugged inlet vent inlet
Binlet plugged inlet vent
Coutlet outlet outlet outlet
3.1 Transport
The equipment is packed in palletized carton boxes, in which spacers are inserted to avoid shaking
during transport. The palletized support is suitable for movement with fork lift trucks. The gross
weight is externally indicated on the container.
3.2 Mounting on plant and clamping
Mount the instrument on the plant using the provided connections (anged or threaded), so that the
housing of the switch mechanism faces upwards and its axis is vertical (a maximum 3° misalignment
is acceptable). Connection pipes to process must be straight-line with full ow through them. Their
length have to be kept at a minimum value to ensure correct uid circulation.
Appropriate support system will be used to avoid unwanted stress to the chamber and its connections.
Level controls working with liquids which might leave deposits must include T or cross type ttings to
allow periodic pipeline cleaning. A drain or blowdown valve (preferably with a straight line ow) will
be useful to clean the oat chamber and the connection pipes to the process.
During their operation all on/off valves must be completely open with a full ow through them to
avoid improper level switching.
Allow a free space of at least 200 mm above the housing to permit its removal.
Switching levels B and C are inuenced by the specic gravity of the controlled liquid and are re-
ported in the table of paragraph 2.5.
3.3 Grounding
Sensilevel must be electrically grounded using the proper terminals identied with a specic tag.
3.4 Commissioning
After installation or maintenance ensure that the system is completely operational. Test each alarm
and protective devices.
3.5 End of operation
The materials used and the reduced volumes make the end of operation almost irrelevant.Acomplete
emptying of the chamber is recommended only when an external storage at low temperature is
expected for a long period. The product may be disposed only nearby authorized sites.
3. Installation
PNEUMATIC VALVE
EXTERNAL
CONNECTIONS

3.752.5275.201
11
In order to better understand the instructions, the following terms have to be dened:
- HIGH LEVEL: liquid level for which the switch mechanism is activated when the level itself is
increasing (B)
- LOW LEVEL: liquid level for which the switch mechanism is activated when the level itself is
decreasing (C)
- DIFFERENTIAL: difference between high and low level.
The instrument is normally calibrated in the factory to the minimum value of differential (there must
be a small amount of clearance between the pair of nuts holding the magnetic piston).
The value of differential can be increased after the installation by lowering the bottom pair of nuts
thus obtaining an increment of the high level switch.
The modication of the differential is possible within the following limits:
- Sensilevel with one switching mechanism type 2 and 3: maximum increase of 50 mm over factory
calibration.
- Sensilevel with two switching mechanisms: maximum increase of 25 mm over factory calibration.
- Sensilevel with three switching mechanisms: the minimum differential value is xed as calibrated
at factory.
The instruments that are calibrated on special request for an “Interface control”, i.e. cut point
between two non-mixable liquids with two different values of specic gravity, are supplied with a
non modiable differential.
In addition to all general recommendations, to modify the original calibration of the differential level
the below indicated procedures have to be carefully followed.
A - Preliminary operations to modify the differential
1 - Remove electric connections from the housing.
2 - Disassemble the non-magnetic pocket and the whole housing, working on the 41 mm hexagon
underneath the base for a direct access to the magnetic piston and to the relevant locking nuts.
(g.5).
3 - Remove the upper position nuts and washer after taking note of the exact position of the threaded
stem top.
4 - Extract the magnetic piston from the threaded stem.
5 - Take note of the exact position of the lower nuts from the top of the threaded stem.
B - Modication of the differential
In order to modify the calibration, that is to change the switching levels of the instrument, it is suf-
cient to alter the position of the nuts xing the magnetic piston along the stem. A 1 mm shift of this
position causes an identical shift of the switching level.
Therefore, to increase the differential it is necessary to move down the position of the lower pair of
nuts for an amount of millimetres needed to obtain the desired value.
Attention: The distance between the two pairs of nuts cannot be lower than that established in the
factory.
C - Return to operation
Upon determination of the new nuts position relevant to the desired differential, proceed as follows
to return to operation:
1 - To avoid possible loosening during operation, tighten lower position nut and lock-nut.
2 - Reinsert the magnetic piston.
3 - Move the upper pair of nuts in the previous position, that noted prior to disassembly. Tighten
these nuts to avoid their potential loosening during operation.
4 - Reinstal the non-magnetic pocket and the whole housing.
5 - Restore the external connections to the housing.
4. Differential and switching level setting
(Electric Switches 2-3)

3.752.5275.201
12
D - Modication of the switching level
This operation is executed by modifying the position of the switch mechanism. In the instruments
equipped with one or two switches type 2 & 3 it is possible to move them up to 50 or 25 mm respec-
tively. This operation is necessary when an increment of the switching values B and C is desired
without modifying the process connections.
To reposition the mechanism loosen the xing screws (g.6) permitting the switch to move along the
non-magnetic pocket; x then the mechanism in the new position. For the lower position mechanism
it is also necessary to remove the locking screw from the plate.
Note:
When the switches are shifted in an upper position the possibility to increase the differential is reduced
of the same shift amount. (e.g. if in a one only switch mechanism Sensilevel, the same switch is moved
up of 20 mm, the differential can be increased of maximum 30 mm instead of 50 mm).
After the modication of the differential and/or of the switching levels it is recommended to
verify the correct operation of the switch by moving the oat manually.
Fig. 5
Threaded stem
Ex-factory nuts position
(with little clearance)
Lower nuts
The differential increases
by lowering the position of
this pair of nuts
Magnetic Piston

3.752.5275.201
13
5. Switch mechanism replacement
A - Electrical switch mechanism
Turn off the power, remove the cover of the housing and proceed as follows:
1 - Remove external connections from the terminal board and record the position of each wire.
Identify also the position of the mechanism on the non-magnetic pocket.
2 - Loosen the 2 xing screws “A” of the plate (see Fig. 6 - Electrical type); take out then the switch
mechanism from the non-magnetic pocket.
3 - Replace the switch mechanism and reassemble the unit by performing above actions 2 and 1
reversely.
4 - Manually check the lever of the magnet holder and make sure it moves freely and that the switch
is correctly operated.
5 - Reconnect the electrical wires ensuring that they do not interfere with the movement of the
mechanism or with the housing.
B - Pneumatic switch mechanism
Close the feed line of the compressed air, remove the cover of the housing and proceed as follows:
1 - Remove the pipes of the valve and identify the position of the mechanism on the enclosing tube.
2 - Loosen the 2 xing screws "A" of the mechanism (Fig. 6 - Pneumatic type) and take it out from
the enclosing tube.
3 - Replace the switch mechanism and reassemble the unit by performing above actions 2 and 1
reversely.
4 - Manually check the lever of the magnet holder and make sure it moves freely and that the valve
is correctly operated.
5 - Reconnect the pipes to the valve ensuring that they do not interfere with the movement of the
mechanism or with the housing.
Fig. 6 - Switch mechanism
Electric type Pneumatic type
Fixing screws
A
Fixing screws
A

3.752.5275.201
14
6. Switch replacement
A - Electrical switch
1 - Remove switch wires from the terminal board.
2 - Remove the 2 xing screws “D” (See g. 7 - Electrical type) and then the switch.
3 - Replace the old switch with the new one and reassemble by performing above actions 2 and 1
reversely.
4 - Manually check the lever of the magnet holder ensuring that the switch opens and closes correctly.
If necessary make adjustments with screw “C” (see g. 7 - Electrical type).
B - Pneumatic switch
1 - Remove pipes from the valve.
2 - Remove the 2 xing screws “D” (g.7 - Pneumatic type) and then the valve.
3 - Replace the old valve with the new one and reassemble by performing above actions 2 and 1
reversely.
4 - Manually check the lever of the magnet holder ensuring that the switch opens and closes correctly.
If necessary make adjustments with screw "C" (see g. 7 - Pneumatic type).
Fig. 7 - Electrical and pneumatic switches
Electrical type Pneumatic type
Fixing
screws
D
Adjusting
screws
C
Adjusting
screws
C
Fixing
screws
D

3.752.5275.201
15
7. Maintenance
Periodical inspections are necessary to guarantee a complete efciency of the instrument. A regular
maintenance program starting from its installation is recommended. The suggested precautions are
important to obtain the best operating conditions of the level control.
A - Keep SENSILEVEL clean
To avoid damage caused by humidity and dust, leave the instrument without its housing only for the
strictly necessary time. Do not lubricate any component of the instrument.
B - Check switches monthly
1 - Connections
Verify the integrity of all switch connections (electrical or pneumatic).
2a - Microswitches
Verify alignment between the adjusting screw "C" and the lever operating the microswitch
(Fig. 7 - Electric type). Check correct switching of the microswitch by manually operating the lever
of the magnet holder.
2b - Pneumatic switches
Verify alignment between the adjusting screw "C" and the pushbutton controlling the valve
(Fig. 7 - Pneumatic type). Check correct switching of the valve by manually operating the lever of
the magnet holder.
These functionality checks of the switches must also be carried out when potentially damaging
events such as short circuits, electrical discharges, or excess of pressure occur.
Avoid to leave in operation any faulty or incorrectly functioning instrument.
In case of parts replacement carefully follow the repair instructions supplied with the spare part.
Contact our central ofce or nearest sales point in case of doubt.

3.752.5275.201
16
SENSILEVEL level switches are designed for long lasting and for fault-free operation. However, if a
malfunction is anticipated, the below indicated checks can be performed to diagnose any problem.
1 - Is the level control correctly installed? (See instructions at point 3.2 - Installation).
2 - Is the level control operating within the limits of liquid pressure, temperature and density indicated
on the identication plate?
3 - Are the electrical or pneumatic connections intact? Is the instrument powered?
4 - Are the voltage and current or the control pressure applied to the switches within the limits
established and reported on the plate?
5 - Do the switch connections comply with the supplied instructions and the general plant diagram?
6 - Is the equipment controlled by the instrument correctly connected and operating?
7 - Is the switch mechanism xed to the enclosing tube as in ex-factory position?
8 - Is the switch damaged?
Check that it is not cracked and that its wire terminals and pipes are not corroded. If any physical
damage is found, the switch must be replaced.
9 - Does the switch properly work when it is manually operated? Check the lever of the magnet
holder manually: it should not oppose any resistance. This manual movement will make the
switch working. Verify the contact continuity with an appropriate tool.
Note: ensure that the lever of the microswitch is not bended and that the adjusting screw is
positioned in its centre.
10 - Is the inside of the level control free from dirt and deposits?
a - Check that the enclosing tube has no external dents (the pipe must not be bent).
b - Check that the inside of the pipe has no deposits and dirt or it is corroded.
c - Check that the magnetic piston and the stem are not corroded, incrusted or bent.
d - The adjusting nuts are individually positioned in the factory for each level control. Ensure
that they have not been loosened and that their position allow the magnetic piston to move
inside and outside of the magnetic eld upon a level variation.
e - Ensure that the oat is not perforated (i.e. it is oating) and without incrustations.
f - Inspect the body internally e the plant connections ensuring there are no deposits and
incrustations.
11 - Should the above described checks have not traced the problem, contact our central or local ofce.
8. Trouble shooting

3.752.5275.201
17
9. ATEX Conformity
Here below are listed the name-plates of compliance for the standard products covered in this
instruction; for all special versions derived from standard are supplied against a specic order, an
"ad hoc" documentation will be issue by our Documentation and Test Departement.
Explosion-proof housing for usage in areas at risk of explosion. The instrument can be used with
process liquids at an operating temperature not exceeding 85°C.
The electrical cable connections utilized must have the appropriate Atex certication. During
connection check inside the housing that all wires have a minimum clearance distance of 3 mm
from the housing wall.
Electrical characteristics
120 Vac / 15 Aac
380 Vac / 15 Aac
30 Vdc / 6 Adc
240 Vdc / 0,2 Adc
Note: The accessories utilized for cable connection must conform with Standards
CENELEC EN 60079-0, EN 60079-1, EN 60079-11, EN 60079-26 e EN 60079-31.

3.752.5275.201
18
Intrinsic safety explosion-proof housing for usage in areas at risk of explosion. The instrument can
be used with process liquids at an operating temperature not exceeding 85°C.
The electrical cable connections utilized must have the appropriate Atex certication. During
connection check inside the housing that all wires have a minimum clearance distance of 3 mm
from the housing wall.
HEP series level switches in II 1G Ex ia or IIC T6 Ga execution must be protected with Associated
Apparatus in II (1)G [Ex ia] IIC execution, with safety parameters U0and I0compatible with the
values indicated in the certicate.
Electrical characteristics
Metallic thin layer contacts
Ui : 30V
Ii : 100mA
Li ~ 0
Ci ~ 0
Note: The accessories utilized for cable connection must conform with Standards
CENELEC EN 60079-0, EN 60079-1, EN 60079-11, EN 60079-26 e EN 60079-31.

3.752.5275.201
19
Explosion-proof housing for usage in areas at risk of explosion suitable for level control applications
with ammable liquids, thanks to the interface design between Zone 0 and the housing inside compliant
to to EN 60079-26 regulation , and to the hermetic contacts use (avoiding ignition sources inside
the housing in standard operating conditions)(category 1/2G). The instrument can be used with
process liquids at an operating temperature not exceeding 85°C. The electrical cable connections
utilized must have the appropriate Atex certication. During connection check inside the housing
that all wires have a minimum clearance distance of 3 mm from the housing wall.
Electrical characteristics
120 Vac / 15 Aac
380 Vac / 15 Aac
30 Vdc / 6 Adc
240 Vdc / 0,2 Adc
Note: The accessories utilized for cable connection must conform with Standards
CENELEC EN 60079-0, EN 60079-1, EN 60079-11, EN 60079-26 e EN 60079-31.

3.752.5275.201 EMM Issue 11 - 2018.07
SERVICE
For technical support, please contact our local Sales Engineer or our Head Ofce directly:
Spirax Sarco S.r.l. - Technical Assistance
Via per Cinisello, 18 - 20834 Nova Milanese (MB) - Italy
Tel.: [phone] - Fax: [phone]
E-mail: [email protected]
LOSS OF GUARANTEE
Total or partial disregard of above instructions involves loss of any rights to guarantee.
Spirax-Sarco S.r.l. - Via per Cinisello, 18 - 20834 Nova Milanese (MB) - Tel.: [phone] - Fax: [phone]