E+E Elektronik EE300E Series User manual

Operating instructions
EE300Ex Series
HUMIDITY / TEMPERATURE
TRANSMITTER
For Intrinsically Safe
Applications
BA_EE300EX_e // v1.7 / Technical data subject to change // 302484

2
The operating instructions form part of the equipment supplied and are used to ensure optimal
operation and functioning of the device.
E+E Elektronik® Ges.m.b.H. provides no warranty of any kind on this publication
and no liability for improper use of the products described.
To ensure perfect functioning, these operating instructions must be read carefully and
observed before the transmitter is commissioned. These instructions must be provided to all
persons responsible for mounting, commissioning, operation, inspection, maintenance and
repair.
These operating instructions must not be used for the purposes of competition without our writ-
ten permission and must not be forwarded to third parties. Copies may be made for internal
purposes. All information, technical data and technical diagrams included in these instructions
were correct in accordance with the data available at the time of writing.
The company E+E Elektronik GmbH reserves the right to make modifications at any time and
without prior notification, with no update requirement on models produced before the modifica-
tion date. For this reason, we request that you contact our customer service department, quot-
ing the device number, designation and type given on the nameplate.
© Copyright E+E Elektronik Ges.m.b.H.
All rights reserved.
USA
FCC notice:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the installation manual, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which thereceiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
CANADIAN
ICES-003 Issue 5:
CAN ICES-3 B / NMB-3 B

3
Contents
1. GENERAL NOTES 4
1.1 Explanation of symbols 4
1.2 Safety instructions 4
1.2.1 General safety instructions 4
1.3 Environmental aspects 4
2. TECHNICAL DESCRIPTION 5
2.1 General 5
2.2 EE300Ex labeling 6
2.3 Certification 7
2.4 Housing and probe dimensions 10
2.5 Humidity probe working range 11
2.6 Dewpoint measurement in natural gas 11
2.7 Measurement of moisture in oil 11
3. INSTALLATION IN AN EXPLOSION HAZARD AREA 12
3.1 General 12
3.2 Housing assembly 13
3.2.1 Drilling plan for the housing 13
3.3 Assembly in category 1 (zone 0 / 20); Division 1 14
3.4 Assembly in categories 2 and 3 (Zone 1 2 / 21 22), Division 2 15
3.5 Mounting the measurement sensor 16
3.5.1 Mounting the clamping ring screw connection 16
3.5.2 Mounting with mounting flange (optional) 17
3.5.3 Mounting the probe using ball valve (optional) 18
3.5.4 Mounting the probe using sensor retraction tool (optional) 19
3.6 Calculation of the maximum cable length 20
3.7 Selecting a suitable power supply device for ATEX Zone concept: 20
4. ELECTRICAL CONNECTIONS 22
4.1 Connecting cable 22
4.2 Terminal assignment EE300Ex 23
4.3 Configuration adapter 23
4.4 Calibration of the current loop 23
4.5 Grounding and potential equalization 24
5. DISPLAY (OPTIONAL) 25
6. MAINTENANCE 26
6.1 Filter replacement 26
6.2 Cleaning 26
6.2.1 Cleaning the display 26
6.2.2 Cleaning the sensor 26
6.3 Customer adjustment of humidity and temperature 26
6.4 Ordering information for accessories 26
7. TECHNICAL DATA - EE300EX-HT 27
8. TECHNICAL DATA - EE300EX-xT 28
9. ATEX CERTIFICATE 29
10. EC DECLARATION OF CONFORMITY 34
11. IECEX CERTIFICATE OF CONFORMITY - COC 35
12. FM CERTIFICATE USA 39
13. FM CERTIFICATE CANADA 46
14. CONTROL DRAWING M1_1309080 53

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1.1 Explanation of symbols
This symbol indicates safety information.
It is essential that this safety information is followed. The manufacturer accepts no liability in
the case of contravention. The risk is borne solely by the user.
This symbol indicates an instruction.
These instructions should be observed to achieve optimum functioning of the device.
This symbol indicates regulations that must be observed in hazardous areas at risk of
explosion.
1.2 Safety instructions
1.2.1 General safety instructions
In the event of improper or incorrect use of the device, the following risks occur:
• Hazards for the device and other assets of the user as well as
• Hazards that impair the efficient working of the device.
The following instructions should be observed to ensure personal safety:
• Only qualified or specially trained personnel should be permitted to work on or oper-
ate the device.
• These operating instructions must always be available to all persons carrying out
mounting, commissioning, operation and servicing.
• It is essential that the device is only operated when in perfect operating condition.
• Any faults determined must be rectified immediately by specialist personnel or by
E+E Elektronik customer services.
• No technical modifications to the device are permitted.
• Take care when unscrewing the filter cap as the sensor element may be damaged
in the process.
• The sensor element is an ESD-sensitive component, i.e. ESD safety measures must
be observed when touching the sensor element.
• Only touch sensors on the connecting wires.
• The devices are designed for operation on safety extra-low voltage (safety class III).
1.3 Environmental aspects
Products from E+E Elektronik® are developed incorporating all important environmental
aspects. For this reason, avoiding environmental contamination should also be observed during
disposal as well.
On disposal of the transmitter, the individual components must be separated by type.
The electronics must be collected in electronics waste and disposed of correctly.
1. GENERAL NOTES

5
2. TECHNICAL DESCRIPTION
2.1 General
The entire EE300Ex transmitter can be installed directly in the explosion hazard area.
The EE300Ex is the ideal transmitter in challenging industrial applications. The housing and
measurement sensor made from stainless steel, as well as the proven E+E humidity sensors,
ensure reliable and stable measurement results over long periods.
The EE300Ex has a 2-wire design and has two individually scalable analogue outputs with
4…20mA. In addition to the measured values for relative humidity and temperature, the
transmitter also delivers the following calculated values:
• Absolute humidity dv
• Wet-bulb temperature Tw
• Specific enthalpy h
• Dew-point temperature Td
• Frost point temperature Tf
• Mixing ratio r
• Water vapour partial pressure e
• Water activity aw
• Water content in mineral transformer oil x [ppm]
• Water content in customer-specific oil x [ppm]
The EE300Ex-HT humidity / temperature transmitter is available in the following designs:
The EE300Ex-xT temperature transmitter is available in the following designs:
Model pressure range working range Ø-probe
A - wall mounting -40...60°C (-40...140°F) 12mm (0.47“)
E -
remote sensing probe up to 20bar (300psi) 0.1...20 bar (1.5...300 psi) -40...180°C (-40...356°F) 12mm (0.47“)
remote sensing probe up to 20bar (300psi) with move-
able fitting for assembly / disassembly under pressure
0.1...20 bar (1.5...300 psi) -40...180°C (-40...356°F) 13mm (0.51“)
M - remote sensing probe up to 300bar (4351psi) 0.01...300 bar (0.15...4351 psi) -40...180°C (-40...356°F) 12mm (0.47“)
U - remote sensing probe for sensor retraction tool PN250 0.01...300 bar (0.15...4351 psi) -40...180°C (-40...356°F) 12/15 (0.47/0.59)
Model pressure range working range Ø-probe
A - wall mounting -40...60°C (-40...140°F) 6mm (0.24“)
M - remote sensing probe 0.1...20bar (1.5...300psi) -70...200°C (-94...392°F) 6mm (0.24“)

6
2.2 EE300Ex labeling
Each EE300Ex is only characterized for one certificate. The Ordering Code on the Product
label shows the type of the Ex Certificate on position “Ex-certificate”. The exact Ex marking
with the certificate number is printed on the Hazardous label (Ex marking). EE300Ex with
IECEx, USA or Canada labeling must not be installed in the European Union.
Hazardous Label
(Ex marking) Product Label
ATEX product label (Example)ATEX hazardous label (for EE300Ex without display)
IECEx hazardous label (for EE300Ex without display)
USA/CANADA hazardous label
(for EE300Ex without display)
IECEx product label (Example)
USA/CANADA product label (Example)

10
2.4 Housing and probe dimensions
L
15 (0.6“)
15 (0.6“)
15 (0.6“)
15 (0.6“)
L
12 (0.47“) 12 (0.47“)
Ø12 (0.47“)
Ø13 (0.51“)
L
Cable length acc. to order code
Cable length acc. to order code
Probe length 200 (7.9") / 400 (15.7")
Probe length 65 (2.6") / 200 (7.9") / 400 (15.7")
Sliding fitting
1/2" ISO or NPT
cut-in fitting
1/2" ISO, NPT or welded fitting
cut-in fitting
1/2" ISO
L = filter cap Length in mm
Stainless steel sinter filter 33 (1.3“)
PTFE filter 33 (1.3“)
Stainless steel grid filter 39 (1.5“)
Oil filter 32 (1.26“)
Wall mounting humidity and temperature - Model A
Remote sensing probe humidity/temperature up to 20bar (300psi) or 300 bar (4351 psi) -
Model E and M
Remote sensing probe humidity/temperature up to 20bar (300psi) - Model E with sliding
fitting
Pressure-tight probe up to 300 bar (4351 psi) have a leak rate A according to EN12266-1
Pressure-tight probe up to 20bar (300psi) have a leak rate B according to EN12266-1
179 (7“)
60 (2.4“)
151 (5.9“)
98 (3.9“)
53 (2.1“)
adjustable min. 23 (0.9”) /
max. 164 (6.5”) / 364 (14.3”)
186 (7.32)
L
Cable length acc. to order code
Probe length 300 (11.8")
Remote sensing probe humidity/temperature up to 300 bar (4351 psi) - Model U

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70 (2.8“)
Cable length acc. to order code
Single-sided screw connection
1/2" ISO or NPT
Wall mounting temperature - xT model
Remote sensing probe temperature
2.5 Humidity probe working range
The grey area shows the allowed measurement range for the humidity sensor. Although
working points that lie outside of this range do not lead to the destruction of the element,
the specified measurement accuracy cannot be guaranteed, however.
Relative humidity [% rel. hum.]
Temperature [°C]
179 (7“)
60 (2.4“)
151 (5.9“)
98 (3.9“)
Ø6 (0.24“)
150 (6“)
2.6 Dewpoint measurement in natural gas
Valid only for EE300Ex-HT6S...Gx (Special option for natural Gas application)
The accuracy of the dewpoint measurement is affected by the working pressure. The actual
working pressure has to be set with the configuration software.
Menu item "Configuration" --> "Parameters"
Factory setting: 1013.25 mbar
2.7 Measurement of moisture in oil
Besides measurement in the air, the EE300Ex can be employed for measurement of both
absolute water content (x) in ppm or relative water activity (aw) in oils.
The USA and Canada approval is valid for air and gas measurement only.

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3. INSTALLATION IN AN EXPLOSION HAZARD AREA
3.1 General
The EE300Ex has been certified in accordance with the ATEX 94/9EC Directive, IECEX
Scheme, , National Electrical Code (ANSI-NFPA 70 (NEC©) and
Canadian Electrical Code (CSA C22.1).
Devices in explosion-hazard areas are only permitted for operation in atmospheric conditions
-20 °C (-4°F) ≤T≤ 40°C (104 °F)
0.8 bar (12 psi) ≤p≤ 1.1bar(16 psi)
In air normally 21 % (V/V)
If suitable measures have been carried out in accordance with EN1127-1, the EE300Ex is also
permitted for operation outside atmospheric conditions in line with the manufacturer's instruc-
tions.
When conducting measurements in explosion-hazard areas, the EE300Ex must always be con-
nected via intrinsically safe power supply devices or protective barriers.
Even if only the measurement probe is installed in the explosion hazard area, the EE300Ex
must be supplied using intrinsically safe equipment.
Rules for the interconnection of intrinsically safe electrical circuits in accordance with EN60079-14,
EN60079-25 and IEC60079-14, IEC60079-25 (proof of intrinsic safety in the system description)
and national requirements should be followed. For the U.S., Canada see Controll Drawing
M1_1309080 and ANSI/ISA RP12.6.01, NEC and CEC.
If a risk analysis of the installation in line with EN1127-1 reveals a risk of lightning strike, an
overvoltage protection device should be installed in the intrinsically safe circuits.
Requirements for the installation of overvoltage protective devices can be found in the standard
EN60079-25. For the U.S., Canada see ANSI/ISA RP12.6.01, NEC and CEC.
Example of an overvoltage protection device
Manufacturer: Dehn
Type: ITAK EXI BXT 24
to protect intrinsically safe
measurement circuits for 2DA
C2 nominal discharge surge current: (8/20) 20 kA
Nominal voltage: 30 V DC
max. permiss. input voltage: 33 V DC
max. permiss. input current: 0.5 A
Alu housing, grey, protection rating: IP 65
ATEX Approval:
II 2 (1) G Ex ia IIC T4, T5, T6
II 2 G Ex ib IIC T4, T5, T6
Follow the installation instructions from DEHN!
Each EE300Ex is provided with its production date. The production date is shown on the label
(after the series) as follows:
WWYYYY WW week of the year of construction
YYYY year of construction

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3.2 Housing assembly
The EE300Ex housing has a two-part construction.
• Lower housing section with the connection and earthing terminals.
• Upper housing section with the electronics and measurement probe.
Lower housing part
Upper housing part
70 (2.8")
4.5 (0.18")
The lower housing section is
mounted using 4 screws.
Screw diameter < 4.5mm (0.18")
3.2.1 Drilling plan for the housing
If the upper housing section is removed from the hazard area, e.g. for a calibration, the empty
lower section should be protected against dirt and electrostatic charge via a cover HA011401.
Unused cable glands should be sealed using a sealing plug.
167 (6.6")

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3.3 Assembly in category 1 (zone 0 / 20); Division 1
Only intrinsically safe power supply devices are approved to supply EE300Ex in category 1 or
Division 1.
In areas belonging to gas group IIC or Class I, Division 1, Group A,B, it must be ensured that
during installation and operation, the possibility of impact and friction sparks has been excluded
in rarely occurring fault situations.
Work on open transmitter must only be performed if it is guaranteed that no explosive atmos-
phere is present.
In category 1 or Division 1, the sensor line should be laid in an earthed metallic protective hose.
With Group III or Class II, III, ensure that there are no dust or fibers and flyings deposits in the
protective tube.
CH1 and CH2 must be galvanically isolated from one another during operation.
There is no display permitted in the gas hazard area EPL Ga for Group IIC or Class I,
Division 1, group A, B, and in the dust hazard area for groups IIIA, IIIB and IIIC or Class II, III.
The probe for wall mounting is not permitted to be used for Zone or Division bushing.
EE300Ex (wall mounting) 1 channel via intrinsically safe power supply device:
EE300Ex (with remote sensing probe) 2 channels via intrinsically safe power supply device:
4-20mA ia
+
-
L+
L-
+
-
+
-
CH2
CH1
4-20mA ia
4-20mA ia
+
-
L+
L-
+
-
+
-
+
-
+
-
CH2
CH1
no display with EPL Da; Db, Dc
and Ga IIC
no display in Class II, III and
Class I, Division 1, Group A, B
Hazardous location T6...T1
Hazardous location T4...T1 Unclassiedlocation
Zone 0 / 20
Division 1
Zone 0 / 20
Division 1
Class I,II,III
Group A, B, C, D, E, F, G
Zone 1 2 / 21 22
Division 2
Zone 1 2 / 21 22
Division 2
Class I,II,III
Group A, B, C, D, E, F, G
up to T6 if EE300Ex is in
unclassiedlocation.
Power supply
Power supply
Control
Control
The bushing must con-
form to the hazard
requirements of a Zone
or Division implementa-
tion. The supplied screw
connection meets this
requirement!
intrinsically safe
transmitter supply unit
intrinsically safe
transmitter supply unit
Unclassiedlocation

15
4-20mA ia
4-20mA ia
+
-
L+
L-
+
-
+
-
+
-
+
-
CH2
CH1
3.4 Assembly in categories 2 and 3 (Zone 1 2 / 21 22), Division 2
Only intrinsically safe power supply devices and protective barriers are approved to supply
EE300Ex in category 2 and 3 or Division 2.
No display is permitted in the dust hazard area (Group III) or Class II, III.
CH1 and CH2 must be galvanically isolated from one another during operation.
The probe for wall mounting is not permitted to be used for Zone or Division bushing.
EE300Ex (wall mounting) 1 channel via intrinsically safe power supply device:
EE300Ex (with remote sensing probe) 2 channels via intrinsically safe power supply device:
+
-
L+
L-
+
-
+
-
CH2
CH1
4-20mA ia
Zone 1 2 / 21 22
Division 2
Class I,II,III
Group A, B, C, D, E, F, G, H
Power supply
Control
The bushing must con-
form to the hazard
requirements of a Zone
or Division implementa-
tion. The supplied screw
connection meets this
requirement!
Zone 0 / 20
Division 1
Class I,II,III
Group A, B, C, D, E, F, G, H
Zone 1 2 / 21 22
Division 2
Class I,II,III
Group A, B, C, D, E, F, G, H
Power supply
Control
intrinsically safe
transmitter supply unit
intrinsically safe
transmitter supply unit
Hazardous location T4...T1 Unclassiedlocation
Hazardous location T4...T1 Unclassiedlocation

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Mechanical ambient conditions
When installing the sensor, the mechanical influences of the installation site should be taken into
account. (e.g. vibrations, shock loads via startup processes, temperature fluctuations,...).
If the mechanical stability or seal on the probe cannot be ensured, additional mechanical
fastening or support should be included.
The probe cable and connection cable should be handled and laid in the hazard area so that no
static charges can arise (e.g. metal hose).
Filter caps
The following filter caps ensure sufficient protection against electrostatic discharges relating to
explosion group IIB, but are not permitted for use in EPL Ga IIC or Class I, Division 1, Group A,B:
• PTFE filter (order code E)
• PTFE filter on metal body (order code K)
• H2O2 filter (order code L)
The following filter caps are permitted for use in EPL Ga IIC or Class I, Division 1, Group A,B:
• Stainless steel sinter filter (order code D)
• Stainless steel lattice filter (order code I)
• Oil filter (order code M)
3.5.1 Mounting the clamping ring screw connection
The clamping ring screw connection can be used as Zone or Division bushing. To do this, the
screw connection is screwed into the isolating wall and must have a seal tightness of IP67.
Safety instructions for pressure-tight screw connection:
• The system must not be vented by releasing the union nuts.
• Do not assemble and tighten pipe screw connections if the system is under pressure.
• Always use the correct thread sealant on conical pipe threads.
• Never rotate the screw connection body. Instead, hold the screw connection body securely and
turn the union nut.
• Avoid unnecessary disassembly of unused pipe screw connections.
3.5 Mounting the measurement sensor
To mount the transmitter, select a location with
stable conditions, i.e. protected against direct
sunlight or rain. The measurement probe
should be fitted at a location where represent-
ative measured values are to be anticipated
for the process.
The measurement probe must be mounted
horizontally or vertically (downwards).
If possible, a drip tray should be placed into
position before every installation.
A temperature drop along the measurement
sensor should be avoided.
45% rH
21°C
Relative Humidity
Temperature
Wand /
r>30mm
Wall
60% rH
17°C

17
Installation instructions:
• Tighten the union nuts finger-tight.
• Mark the union nuts at the 6 o' clock position.
• Hold the screw connection body tight and tighten the
union nuts with 1 ¼ turns to the 9 'o clock position.
Assembly with high pressure applications and applications with a high security factor:
• Tighten the union nuts until the pipe can no longer be turned by hand or can no
longer be moved axially in the fitting.
• Mark the union nuts at the 6 o' clock position.
• Hold the screw connection body tight and tighten the union nuts with 1 ¼ turns to
the 9 'o clock position.
Re-mounting:
• Slide measurement sensor with clamping rings into the fitting as far as it will go.
• Tighten the nut "fingertight", then tighten by approx. a ¼ turn using a spanner.
3.5.2 Mounting with mounting flange (optional)
The assembly flange must not be used as Zone or Division bushing, i.e. it must only be used
for fastenings and bushings in explosion-hazard areas of the same category.
Horizontal mounting Vertical mounting
The measurement sensor must be mounted horizontally or vertically (downwards). If possible,
a drip tray should be placed into position before every installation.
13mm (0.5")

18
3.5.3 Mounting the probe using ball valve (optional)
With ball valve mounting, the system being meas-
ured does not need to be emptied or brought to a
standstill to mount or remove the probe.
Install the sensor head against the flow direction.
It is only permitted to use one ball valve that is
approved for use in explosion hazard areas.
The process pressure must be below 10bar (145psi).
The two metal sealing rings (see figure) should be
replaced each time after being screwed on.
MOUNTING THE PROBE:
The mounting temperature is not permitted to
deviate from the usage temperature by more than
±40°C (104°F).
• Mount the probe with the ball valve closed.
• Open the ball valve.
• Insert the sensor head through the ball valve
into the process. A manual pressing tool is
recommended at high pressure.
• To ensure that the probe is securely installed, the closing nut must be tightened at a
defined torque of 30Nm.
If there is no torque wrench present, tighten the closing nut by hand as far as possible.
Turn another ~50° using a suitable open-ended spanner.
A tightening torque that is too low results in a lower clamping force (fixing force) of the
clamp sleeve. There is therefore a risk of injury due to the probe tube being driven out.
An excessively high tightening torque can result in the permanent deformation of the
clamping sleeve and the probe tube. This makes the removal and re-mounting process
more difficult or impossible.
REMOVING THE PROBE:
• Hold the probe tube tight. (Caution: Do not
bend the connection cable)
• Slowly unfasten the closing nut using a
spanner (spanner size 24) until the drive-
out force affects the tube. Never fully
remove the closing nut when installed, and
instead screw on only as far as possible!
• After the sensor head has been removed
from the process as far as it will go, close
the ball valve.
• The probe can be fully removed.
Both for mounting and removal, ensure that
O-ring 1 is correctly installed.
If damaged, O-ring 1 can be replaced by the
user.
O-ring type: 13x1.5mm (0.5"x 0.06") - FKM-60
Spare part order no. HA050308
Metal sealing ring
(included with the ball
valve set as standard)
Internal diameter:
≥ 13.1 mm (0.51")
Extension
(not provided with an NPT
thread)
Metal sealing ring
(as standard
with probe)
Clamp sleeve
Sealing
nut
Fitting body
O-ring 2
O-ring 1
no aluminium
is permitted

19
Swagelok-union nut
protective cover
Swagelok-tting
copper sealing
3.5.4 Mounting the probe using sensor retraction tool (optional)
Observe the operating instructions of the sensor retraction tool!
It may only be used the sensor retraction tool ZM-WA-025-040-EST or BG-WA-103-045-EST.
With the sensor retraction tool 250 bar it may only be used the sensor probe model U.
The delivery scope of the sensor probe includes the copper sealing for the Swagelok screw
connection.
Make sure that the sensor retraction tool is in ”SERVICE“ position (see manual of the sensor
retraction tool).
• Before installing the sensor, dismount the closing plug ½“
by means of a hexagonal wrench 10 mm and “park“ it at
the thread hole M10 designed for that purpose.
• Insert the sensor with copper sealing Swagelok and pro-
tective cover into the sensor retraction tool until the stop
position.
• Fasten the Swagelok screw conneciton ½“ in the sensor retraction tool with the
open-jaw wrench (wrench size 27mm). Do not forget to check the copper sealing!
• At first manually tighten the Swagelok union nut with cutting ring. Pull back the
probe until it stops and hold it.
• By means of a screw wrench, tighten the union nut just
firmly enough that the screw connection cannot be moved
manually any longer.
Mark the union nuts at the 6 o' clock position.
• Hold the screw connection body tight and tighten the
union nuts with 1 ¼ turns to the 9 'o clock position.
• To mount the protective cover for the Swagelok protective cover, proceed in the fol-
lowing order:
• Push the protective cover down to the adjusting device: screws must point to the
flat area (wrench size 26mm)
• Tighten screws M3.

20
3.6 Calculation of the maximum cable length
Intrinsically safe power supply device STAHL 9160/13-11-11 (order code HA011405)
Technical data for EE300Ex
Supply voltage: UBin= 9V + RL * 0.02A
Max. current: Iout max = 20mA
Technical data for STAHL 9160/13-11-11
Nominal operating voltage: UN= 24V
Input voltage for transmitter: US= 16V
Max. load: RL= 600Ohm
Calculation of maximum cable length of intrinsically safe input isolator
Cable 0.75mm² (0.01in2) (example): Rcable =0.0267Ω/m
Load resistance (load): RL=200Ω
Input voltage for transmitter: US= 16V
Min. supply voltage EE300Ex: UBmin=9V+200Ω*0.02A=13V
Maximum voltage drop on cable: Ucable = US- UBmin = 16V – 13V = 3V
Total cable resistance: Rcable total = Rcable * Ltotal * 2 (supply and return line)
Udrop = Rcable total * Iout max =
= Rcable * Ltotal * 2 * Iout max
Transform in accordance with Ltotal Ltotal = Udrop / (Iout max * 2 * Rcable )
Ltotal =3V/(0.02A*2*0.0267Ω/m)
Ltotal = 2800m maximum cable length
Caution: this is the max. length without allowing for the intrinsic safety.
(cable capacity and inductivity may reduce the length even further)
3.7 Selecting a suitable power supply device for ATEX Zone concept:
Example for evidence of the intrinsic safety in accordance with EN60079-14:2008 12.2.5.2,
EN60079-25:2010 13.1. CH1 and CH2 are galvanically separated, meaning the evidence of the
intrinsic safety can only be carried out using appropriate equipment.
Installation assumption:
Installing the EE300Ex (without display) in Zone 0
Connecting cable length: 300m (984ft)
Explosion group: IIC
Temperature class: T4
Both electric circuits laid in one cable.
Intrinsically safe power supply device STAHL 9160/13-11-11
(Excerpt from the EC type approval test certificate)
Certified to:
II 3 (1) G Ex nA nC [ia Ga] IIC T4 Gc (certificate number: DMT 03 ATEX E 010 X)
II (1) D [Ex ia Da] IIIC (certificate number: DMT 03 ATEX E 010 X)
Entity parameters:
U0= 27V
I0= 88mA
P0= 576mW
C0IIC = 90nF
C0IIB = 705nF
L0IIC = 2.3mH
L0IIB = 17mH

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Technical data for connecting cable
Cable type: ÖLFLEX® EB CY from manufacturer Lapp Kabel
Cable cross-section: 4 x 0.75mm² (0.06x0.01in²)
Operating capacity: 110nF/km
Inductivity: 0.65mH/km
Cable capacity for 300m (984ft): CK = 0.3km * 110nF/km = 33nF
Cable inductivity for 300m (984ft): LK = 0.3km * 0.65mH/km = 0.195mH
Technical data for EE300Ex (extract from the EC type approval test certificate)
Certified to:
II 1 G Ex ia IIC T4 Ga
II 1 D Ex ia IIIC T80°C Da
Entitiy parameters:
Ui= 28V
Ii= 100mA
Pi= 700mW
Ci= 2.2nF
Li= negligibly small
Evidence of the intrinsic safety in accordance with EN60079-11:2012
EN60079-25:2010 (Appendix A)
U0 =27V ≤ Ui=28V →ok
I0 =88mA ≤ Ii=100mA →ok
P0 =576mW ≤ Pi=700mW →ok
C0 =90nF ≥ 2,2nF+33nF →ok
L0 =2,3mH ≥ 0mH+0,195mH →ok
Protection level of the intrinsically safe current circuit is is met!
Evidence of the intrinsic safety in accordance with EN60079-11:2012,
EN60079-25:2010 (Appendix A)
Li=negligiblysmall→noreducedC0and L0values required!
YES
YES
YES
YES
NO
NO
NO
NO
Li=0
Ci=0
Full values of C0and L0can be
utilised
Use reduced C0and L0values for
mixed electric circuits
For intrinsically safe electric circuits with
linearsources,simpliedevaluationrule:
each half value of C0and L0can be used,
limited to C0=600nF(IIC)and1μF(IIB)
Li≤1%
of L0
Ci≤1%
of C0

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4.1 Connecting cable
A shielded cable should be used. The shield should be laid on one side with the EE300Ex.
The cable must conform to the following specifications (requirements of EN60079-14,
EN60079-25) for ATEX:
• Cable diameter 4 - 8mm (0.15-0.31")
• Maximum cross-section 1.5mm² (0.02in²)
• Singlestrandedwirediameter:≥0.1mm(0.004")
• Testvoltagewire-wire:≥500VACeff.
• Testvoltagewire-shield(ifacablewithshieldisbeingused):≥500VACeff.
• Cable inductivity, cable capacity and conductor resistance are to be evaluated in the
evidence of intrinsic safety
• Flame-resistant acc. to IEC60332-1-2
Additional requirements if both channels (CH1, CH2) are connected in a common
cable:
• Thetestvoltagewire-wire:mustbe≥1000VACeff.
• Theradialthicknessoftheinsulationmustbe≥0.2mm(0.008").
• The conductor insulation must withstand 500V AC eff.
Cable ÖLFLEX® EB CY from manufacturer LAPP KABEL meets this requirement
on request.
4. ELECTRICAL CONNECTIONS
It is essential that installation, electrical connection, commissioning, operation and maintenance in
explosion hazard areas are only carried out by trained specialist personnel authorised to do so by
the system operator.
Installation in accordance with NEC or CEC with consideration of the Control Drawing
M1_1309080
For installation in an explosion hazard area, it is essential to ensure that all relevant standards are
observed. For the installation, standard EN60079-14, EN60079-25 or IEC60079-14, IEC60079-25
is to be applied, and for repair and maintenance, the standards EN60079-17 or IEC60079-17 and
EN60079-19 or IEC60079-19 as well as the relevant national regulations should be applied.
Installation in the U.S. must be carried out in accordance with ANSI / ISA RP 12.6.01-2003 and
the National Electrical Code (NEC).
Installation in Canada must be carried out in accordance with the Canadian Electrical Code (CEC).
The EE300Ex is designed as a 2-wire current transmitter.
CH1 should always be connected, CH2 can also be activated if required.
Both outputs are galvanically isolated.
Cable ends must be fitted with the appropriate wire-end sleeves. After the connection in the
terminal, an air gap of at least 2mm (0.08") must be left between the strands and a 6mm (0.2") air
gap between channels 1 and 2.
Changes to the probe cable length are only permitted to be carried out by the manufacturer
(transmitter will need to be re-calibrated).

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4.3 Configuration adapter
The digital interface is used only for device configuration and customer adjustment.
The configurator software and the drivers are available for download free of charge from our
website http://www.epluse.com/en/service-support/download-center/.
The EE300Ex in combination with the configurator software is only permitted for use outside
the hazard area.
It may only be used the cable with protective circuit (aluminum housing on the
8 pin connector).
Connection from CH1 is NOT required for communication.
RS232 (the external power supply required is included as standard with the configuration adapter):
USB:
If the upper housing section of the EE300Ex with the electronics and measurement probe is
removed, the lower housing section with the blanking plate (HA011401) should be sealed to
protect against dirt and electrostatic charge.
4.4 Calibration of the current loop
Only appropriately approved multimeters are permitted for calibration in hazardous areas.
During measurement with these multimeters, ensure that the requirements of the system
description (proof of intrinsic safety) remain in force.

PC

PC

PC

PC
Connection cable - HA011061
Congurationadapter-
EE-PCA
4.2 Terminal assignment EE300Ex
Erde
CH1 +
CH1 -
CH2 +
CH2 -