E+E Elektronik EE33 User manual

BA_EE33 // v16 // Modification rights reserved // 193359
User Manual
EE33
Humidity / Temperature Sensor for
High Humidity and
Chemical Applications

E+E Elektronik Ges.m.b.H. does not accept warranty and liability claims neither upon this publication nor in case of
improper treatment of the described products.
The document may contain technical inaccuracies and typographical errors. The content will be revised on a regular
basis. These changes will be implemented in later versions. The described products can be improved and changed
at any time without prior notice.
© Copyright E+E Elektronik Ges.m.b.H. All rights reserved.
EMC note USA (FCC):
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
EMC note Canada (ICES-003):
CAN ICES-3 (A) / NMB-3 (A)

CONTENT
1 General .................................................................................................................................................4
1.1 Explanation of Symbols.................................................................................................................................4
1.2 Safety Instructions.........................................................................................................................................4
1.2.1 General Safety Instructions..................................................................................................................................4
1.2.2 Alarm Module with Voltages >50V (Option AM2).................................................................................................4
1.2.3 Integrated power supply 100 - 240 V AC (Option AM3) .......................................................................................4
1.2.4 Intended Use........................................................................................................................................................5
1.2.5 Mounting, Start-up and Operation........................................................................................................................5
1.3 Environmental Aspects..................................................................................................................................5
2 ESD Protection ....................................................................................................................................5
3 Scope of Supply ..................................................................................................................................6
4 Product Description ............................................................................................................................6
4.1 Heating Modes ..............................................................................................................................................7
4.1.1 Condensation Prevention (CP) Against Temporary Condensation ...................................................................... 7
4.1.2 Automatic ReCovery (ARC) against Chemical Pollution......................................................................................8
4.1.3 Dual Heating System with Overheating (OH) ....................................................................................................10
4.1.4 Overview Heating Modes and Types .................................................................................................................10
4.2 Dimensions..................................................................................................................................................10
4.3 Electrical Connection...................................................................................................................................12
5 Mounting and Installation.................................................................................................................13
5.1 Enclosure ....................................................................................................................................................13
5.2 Remote Sensing Probe Type T4, T5 ...........................................................................................................13
5.3 Remote Sensing Probe Type T7 .................................................................................................................14
5.4 Remote Sensing Probe Type T8 .................................................................................................................14
5.5 Remote Sensing Probe Type T10 ...............................................................................................................15
5.6 Remote Sensing Probes Type T17..............................................................................................................16
5.7 Remote Sensing Probes Type T28..............................................................................................................17
6 Electrical Connection........................................................................................................................17
6.1 Cable Glands...............................................................................................................................................18
6.2 Connection on Bottom Part of Enclosure with Plugs (Option E4/E5/E7).....................................................18
6.2.1 Plug Option E4...................................................................................................................................................18
6.2.2 Cable Gland / Plug Option E5............................................................................................................................19
6.2.3 Plug Option E7...................................................................................................................................................19
6.3 Alarm Module Connection Diagram (Option AM2) ......................................................................................19
6.4 Connection Configuration for Integrated Power Supply (Option AM3) ........................................................19
6.5 Connection Configuration of Connectable Sensing Probe (Option PC6)........................................................ 20
7 Operating Components ....................................................................................................................20
7.1 Circuit Board................................................................................................................................................20
7.2 Display Module (Option D2) ........................................................................................................................21
8 Optional Modules ..............................................................................................................................22
8.1 ARC-Module (Option AM1)..........................................................................................................................22
8.2 Alarm Module (Option AM2) ........................................................................................................................23
8.3 Integrated Power Supply (Option AM3).......................................................................................................24
9 Humidity / TemperatureCalibration .................................................................................................24
9.1 2-point Humidity Calibration ........................................................................................................................24
9.2 2-point Temperature Calibration ..................................................................................................................26
9.3 1-point Humidity Calibration ........................................................................................................................27
9.4 1-point Temperature Calibration ..................................................................................................................28
9.5 Resetting the Customer Calibration to the Factory Calibration on the Circuit Board ..................................29
9.6 Adjustment/Calibration of EE33 Type T17...................................................................................................30
9.6.1 Adjustment/Calibration with Humidity Calibrator HUMOR 20 ............................................................................30
9.6.2 Adjustment/Calibration with Various Calibrators ................................................................................................31
10 Maintenance.......................................................................................................................................31
10.1 Sensor Cleaning..........................................................................................................................................31
10.2 Automatic ReCovery (ARC) ........................................................................................................................31
10.3 Fuse Replacement for Integrated Power Supply (Option AM3) ..................................................................32
10.4 Self Diagnosis and Error Messages ............................................................................................................32
10.4.1 Self diagnosis via LEDs on the circuit board......................................................................................................32
10.4.2 Self diagnosis via display (optional):..................................................................................................................32
10.4.3 Further self diagnosis:........................................................................................................................................32
11 Network ..............................................................................................................................................33
12 ReplacementParts / Accessories ....................................................................................................34
13 Technical Data ...................................................................................................................................35

4EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
1 General
This user manual serves for ensuring proper handling and optimal functioning of the device. The user
manual shall be read before commissioning the equipment and it shall be provided to all staff involved
in transport, installation, operation, maintenance and repair. The user manual may not be used for the
purposes of competition without the written consent of E+E Elektronik and may not be forwarded to
third parties. Copies may be made for internal purposes. All information, technical data and diagrams
included in these instructions are based on the information available at the time of writing.
Please find this document and further product information on our website at
www.epluse.com/ee33.
Disclaimer
The manufacturer or his authorized agent can be only be held liable in case of willful or gross
negligence. In any case, the scope of liability is limited to the corresponding amount of the order issued
to the manufacturer. The manufacturer assumes no liability for damages incurred due to failure to
comply with the applicable regulations, operating instructions or the specified operating conditions.
Consequential damages are excluded from the liability.
1.1 Explanation of Symbols
This symbol indicates safety information.
It is essential that all safety information is strictly observed. Failure to comply with this information can
lead to personal injuries or damage to property. E+E Elektronik assumes no liability if this happens.
This symbol indicates instructions.
The instructions shall be observed in order to reach optimal performance of the device.
1.2 Safety Instructions
1.2.1 General Safety Instructions
Avoid any unnecessary mechanical stress and inappropriate use.
When replacing the filter cap make sure not to touch the sensing elements.
The device must be operated with the filter cap on at all times.
For sensor cleaning and filter cap replacement please see “Cleaning Instructions” at www.epluse.com.
Installation, electrical connection, maintenance and commissioning shall be performed by qualified
personnel only.
The devices are designed for the operation with class III supply (EU) and class 2 supply (NA).
The power supply must be switched off before opening the housing.
Use the EE33 only as intended and observe all technical specifications.
Do not use EE33 in explosive atmosphere
This device is not appropriate for safety, emergency stop or other critical applications where device
malfunction or failure could cause injury to human beings.
1.2.2 Alarm Module with Voltages >50V (Option AM2)
The optional alarm module is isolated from the low-voltage side of the EE33 by a special partition;
this must remain fitted at all times in the back section of the enclosure.
The EE33 enclosure must be tightly closed during operation. An open enclosure corresponds to IP00
and exposes components carrying dangerous voltage. Any work (maintenance for instance) on the
device may be performed by qualified staff only.
1.2.3 Integrated power supply 100 - 240 V AC (Option AM3)
The EE33 enclosure must be tightly closed during operation. An open enclosure corresponds to IP00
and exposes components carrying dangerous voltage. Any work (maintenance for instance) on the
device may be performed by qualified staff only.

5
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
1.2.4 Intended Use
The EE33 sensors are designed to meet the highest demands of stable and highly precise
measurements of relative humidity (RH) and temperature (T) under the most challenging conditions.
EE33 is suitable for a wide range of applications from -40 °C (-112 °F) up to 180 °C (356 °F) and 100 bar
(1 450 psi).
With different heating modes of the monolithic RH and T sensing element EE33 can be perfectly
tailored to the specific needs of each measuring task.
The device may only be powered as decried in this manual.
The use of the EE33 in any other way than described in this manual bears a safety risk for people and
the entire measurement installation and is therefore not allowed.
The manufacturer cannot be held responsible for damages as a result of incorrect handling, installation,
and maintenance of the equipment.
In order to avoid damage to the instrument or health hazards, the measuring equipment must never be
manipulated with tools that are not specifically described in this manual.
The sensor may only be utilized in accordance with the conditions defined in the technical data.
Otherwise, measurement inaccuracies will occur and equipment failures cannot be ruled out.
The steps recommended by the manufacturer for installation, inspections and maintenance work must
be observed and carried out for the safety of the user and for the functionality of the equipment.
Unauthorized product modification leads to loss of all warranty claims. This may be accomplished only
with an explicit permission of E+E Elektronik!
1.2.5 Mounting, Start-up and Operation
The EE33 humidity and temperature sensor has been produced under state of the art manufacturing
conditions, has been thoroughly tested and has left the factory after fulfilling all safety criteria. The
manufacturer has taken all precautions to ensure safe operation of the device. The user must ensure
that the device is set up and installed in a manner that does not have a negative effect on its safe
use. The user is responsible for observing all applicable safety guidelines, local and international, with
respect to safe installation and operation on the device. This user manual contains information and
warnings that must be observed by the user in order to ensure safe operation.
Mounting, start-up, operation and maintenance of the device may be performed by qualified staff
only. Such staff must be authorized by the operator of the facility to carry out the mentioned activities.
The qualified staff must have read and understood this user manual and must follow the instructions
contained within.
All process and electrical connections shall be thoroughly checked by authorized staff before putting
the device into operation.
Do not install or start-up a device supposed to be faulty. Make sure that such devices are not
accidentally used by marking them clearly as faulty.
A faulty device may only be investigated and possibly repaired by qualified, trained and authorized
staff. If the fault cannot be fixed, the device shall be removed from the process.
Service operations other than described in this user manual may only be performed by the
manufacturer.
1.3 Environmental Aspects
Products from E+E Elektronik are developed and manufactured in compliance with all relevant
environmental protection requirements. Please observe local regulations for the device disposal.
For disposal, the individual components of the device must be separated according to local recycling
regulations. The electronics shall be disposed of correctly as electronics waste.
2 ESD Protection
The sensing elements and the circuit board are ESD (electrostatic discharge) sensitive components of
the device and must be handled as such. The failure to do so may damage the device by electrostatic
discharges when touching exposed sensitive components.

6EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
3 Scope of Supply
Included in all versions With option
EE33 according to ordering guide
Manual EE33
Inspection certificate according to DIN EN10204-3.1
Allen key 3.0 HS3
Mating plug for integrated power supply AM3
Mating plug RKC 5/7 AM3 / E4 / E7
Y-junction for network connection E7 & J3
Mating plug RSC 5/7 E5 / E7
M16 cable gland metal except for Options
E4 / E5 / E7 / AM3
Cut in fitting EE33-M1T8
4 Product Description
The EE33 is available with 7 remote probe types in various probe and cable lengths. (Please refer to
chapter 4.2 for dimensions)
Probe
Type Description
T4 Remote probe up to 120 °C (248 °F)
T5 Remote probe up to 180 °C (356 °F)
T10 Remote probe, pressure tight up to 20 bar (300 psi) and 180 °C (356 °F), with sliding fitting
T8 Remote probe, pressure tight up to 100 bar (1 450 psi) and 180 °C (356 °F), with cut in fitting
T17 Two remote probes, pressure tight up to 20 bar (300 psi) and 180°C (356 °F), with optional cut in fitting
T7 Remote probe for cut-in fitting, pressure tight up to 20 bar (300 psi) and 180 °C (356 °F) with optional cut in fitting
T28 Two remote probes, for meteorological applications
The employed high-end E+E RH and T sensing element is heated autonomously and enables reliable
and long-term stable measurements in extremely humid or chemically polluted environments. The
monolithic structure of the RH/T sensing element ensures a fast return to normal conditions after
condensation or chemical contamination. In addition it is perfectly protected by the E+E proprietary
coating.
With a special high-pressure probe the sensor can be used at process pressures up to 100 bar (1 450 psi).
Different heating modes of the monolithic RH and T sensing element allow for best adaption to the
specific needs of each measuring task. Furthermore types T7 and T17 offer a dual heating system
(Probe body and sensing element are heated) to prevent condensation on the RH sensing element and
on the probe body for continuous high humidity operation.
Function Comment EE33
Measurement of RH and T
Calculation of h, r, dv, Tw, Td, Tf, e
2 freely scaleable and configurable analogue outputs
On-site adjustment for RH and T
LED indication of sensor status / error diagnosis of probes
RS232 for sensor configuration via PC
2 freely configurable alarm outputs optional
Data output via RS232 interface
Data output via RS485 interface optional
RS485 for networking with up to 32 devices optional
Alternating display with MIN/MAX indication optional
Connectable sensing probe optional
ARC module for external triggering of sensor heating optional

7
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
4.1 Heating Modes
4.1.1 Condensation Prevention (CP) Against Temporary Condensation
Temporary condensation on the sensing element in highly humid environments is eliminated when a
specified RH set point (factory setting: 99 %RH) is reached. By intensive heating of the sensing element
for 10 seconds occurring dew is evaporated. Thanks to its monolithic structure, the sensing element
cools off quickly within approximately 3 minutes and returns to its measurement function.
If condensation is still detected after the CP process, it restarts after a cycle time of 30 minutes.
During the complete heating and cool-down process, the values on the 2 analogue outputs are frozen.
In other words, the measuring values at the analog outputs are kept constant during the CP cycle.
T [°C]
start CP cycle
RH > RH setpoint
heating time
temp. condensation (10 s)
cool-down time
min. > 3 min
freezing period of output signals
ambient temperature
t [min]
Please note: If the defined cool-down time is too short, the measurements may be incorrect.
heating time
temp. condensation (10 s)
cool-down time
e.g. 2 min
freezing period of output signals
T [°C]
t [min]
humidity output
temperature output
ambient humidity
ambient temperature
RH [%]

8EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
RH [%]
start automatic recovery ARC
heating
time
10 s
cool-
down time
3 min
definable threshold e.g. 99 %
ambient humidity
ambient temperature
interval / 30 min
T [°C]
T [min]
T [min]
Please note: When heating has ended, the system blocks any subsequent heating for 30 minutes. In
other words, if the ambient humidity remains above the defined set point after the initial heating, the next
heating starts again after 30 minutes.
The following types support the condensation prevention function: T4/T5/T8/T10.
4.1.2 Automatic ReCovery (ARC) against Chemical Pollution
When capacitive humidity sensing elements are exposed to chemical pollution (e.g. detergent residues),
the presence of foreign molecules can distort the measurement reading of the sensor. With the ARC
function foreign molecules can be evaporated from the sensing element by brief and intensive heating.
The start of the ARC function can be triggered as follows:
Manual: by pressing the pushbutton S3 on the circuit board (see chapter 7.1 “Circuit Board”). A manual
start of the ARC function is recommended when
chemical pollution on the sensing element is expected (cleaning/sterilization)
measurement readings deviate significantly from a calibration reference
Cyclic: by using EE-PCS, ARC can be configured to start periodically at a certain time interval.
Periodic heating shall be used to minimize drift effects in applications with high chemical pollution.
The ideal cycle time depends on the type of pollution and its concentration and has to be determined
empirically.
heating
time
cool-down
time
freezing
heating 1 heating 2
definable interval time
T [°C]
T [min]

9
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
External: by using the optional ARC module the function can be activated using an external signal see
chapter 8.1 “ARC-Module (Option AM1)”.
Please note: before a recalibration is done after an ARC cycle, reconditioning of the sensing element
is recommended. For best reconditioning, please allow 2 free calibration cycles between 15 %RH and
90 %RH in steps of ~20 %RH and 20 min stabilisation time.
Beside activating and defining the cyclic ARC function EE-PCS allows for further configuration of ARC
parameters:
Heating time: Defines the time in which the monolithic measurement cell is intensively heated. A
heating time of at least 20 minutes is recommended if chemical pollution has occurred.
Cool-down time: The cool-down time is necessary for the sensing element to cool back down to
ambient temperature. The cool-down time should be >3 min. in order to prevent measurement errors.
During the ARC process (heating and cool-down time) the values on the 2 analogue outputs are frozen.
In other words, the measuring values at the analog outputs are kept constant during the ARC cycle.
T [°C]
start automatic recovery ARC
manually/cyclic/externally
heating time
chem. loads (> 20 min)
cool-down time
min. > 3 min
freezing period of output signals
ambient temperature
t [min]
Please note: If the defined cool-down time is too short, the measurements may be incorrect.
heating time
chem. loads (> 20 min)
cool-down time
e.g. 2 min
freezing period of output signals
T [°C]
t [min]
humidity output
temperature output
ambient humidity
ambient temperature
RH [%]
All EE33 support the ARC function.

10 EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
4.1.3 Dual Heating System with Overheating (OH)
In environments with continuous high humidity even the smallest deviations between the temperature
of the sensor head and the ambient temperature can cause condensation. Dew on the RH/T sensing
element influences the accuracy of the measurement and increases the risk of deposits on the active
sensor surface that lead to parallel resistances and parasitic capacitances.
The dual heating system of the EE33 prevents both: condensation on the RH sensing element and
on the probe body by a regulated heating strategy. This leads to very short response time and fast
recovery after condensation. Furthermore, it enables precise RH measurement even under continuously
high humidity and condensing conditions. RH and T of the heated sensing element can be determined
precisely thanks to its monolithic structure and the dew point of the environment is calculated. If the
relative humidity has to be determined near condensation, the ambient temperature can be measured
with an additional T sensor to calculate the relative humidity.
The following EE33 types incorporate the dual heating system:
T7: for Td measurement only
T17: with additional T Sensor included for RH measurement
T28: with additional T Sensor included for RH measurement in meteorological applications
4.1.4 Overview Heating Modes and Types
Heating Mode Condensation Prevention
(CP)
Automatic ReCovery
(ARC)
OverHeating (OH) with
Dual Heating System
Use Against temporary condensation Against chemical pollution
In environments with
continuous high humidity and
condensation
Function Trigger RH setpoint*)Cyclic, externally, manually Always ON
EE33 Type
EE33 Type T4/T5/T8/T10   Not available
EE33 Type T7/T17 Not usable due to OH  
EE33 Type T28 Not usable due to OH  
*)Factory setting: disabled, RH setpoint preset to 99 %.
4.2 Dimensions
135 (5.3)
163 (6.4)
66.5 (2.6)
90 (3.5)
Fig. 1 EE33 metal enclosure

11
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
135 (5.3)
90 (3.5)
66.5 (2.6)
Fig. 2 EE33 polycarbonate enclosure
Fig. 3 Type T4 / T5
Fig. 4 Type T7, pressure tight up to 20 bar (300 psi) for Td measurement with optional cut in fitting
Fig. 5 Type T8, pressure tight up to 100 bar (1450 psi) with cut in fitting
code “cable length”
code “probe length”
L*)
Ø12
(0.5)
*) L = Filter length: refer to “Accessories” data sheet
15 (0.6)
code “cable length”
code “probe length”
Ø12
(0.5)
G1/2" ISO OR 1/2" NPT
Screw connection Order code
1/2" ISO Ø12 mm HA011102
1/2" NPT Ø12 mm HA011103
code “cable length”
code “probe length”
Ø12
(0.5)
G1/2" ISO OR 1/2" NPT

12 EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
code “cable length”
code “probe length”
Ø13
(0.51)
adjustable min. 23 (0.9) /
max. 44 (1.7) / 164 (6.5) / 364 (14.3)
Ø12
(0.47)
G1/2" ISO OR 1/2" NPT
Fig. 6 Type T10, pressure tight up to 20 bar (300 psi) and 180 °C (356 °F), with sliding fitting
code “cable length”
code “probe length”
Ø12
(0.5)
G1/2" ISO OR 1/2" NPT
G1/2" ISO OR 1/2" NPT
Ø6
(0.25)
code “cable length”
150 (5.9)
Screw connection Order code
1/2" ISO Ø12 mm HA011102
1/2" NPT Ø12 mm HA011103
1/2" ISO Ø6 mm HA011104
1/2" NPT Ø6 mm HA011105
Fig. 7 Type T17, two probes, pressure tight up to 20 bar (300 psi) and 180°C (356 °F), with optional cut in fitting
Fig. 8 Type T28, two probes, for meteorological applications
4.3 Electrical Connection
Details are outlined in chapter 6.
150 (5.9)
code “cable length”
code “cable length”
93 (3.66)39 (1.54)
∅6
(0.24)
53 (2.09)
35 (1.38)
∅24
(0.94)
∅12 (0.47)
∅24
(0.94)

13
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
5 Mounting and Installation
5.1 Enclosure
Drilling with long hole:
Drilling with round hole:
150 (6)
148 (5.8)
57 (2.24)
55 (2.16)
Ø4.2 (0.16)
4.5 (0.18)
Drill the mounting holes according to the mounting
pattern shown on the left.
Mount the bottom part of the enclosure with 4 screws
(screw diameter < 4.2 mm (0.2”); not included in the
scope of supply).
90
(3.5)
135
(5.3)
Establish the electrical connection
(see chapter 4.3).
Mount the middle part and the cover with
4 screws (included in the scope of supply).
5.2 Remote Sensing Probe Type T4, T5
Using the stainless steel mounting flange (refer
to accessories) it is possible to mount the probe
on the outer wall of the measuring chamber.
The depth of immersion is adjustable.
For roof installations use the drip water
protection (refer to accessories) to protect the
sensor head and elements against condensed
water.
The sensing probe must be mounted
horizontally or vertically, pointing
downwards. If possible, a drip sheet
should be fitted for each mounting.
Temperature range of sensing probe type T4: -40...120 °C (-40...248 °F)
Temperature range of sensing probe type T5: -40...180 °C (-40...356 °F)

14 EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
5.3 Remote Sensing Probe Type T7
Using the stainless steel mounting flange (refer
to accessories) it is possible to mount the probe
on the outer wall of the measuring chamber.
The depth of immersion is adjustable.
For roof installations use the drip water
protection (refer to accessories) to protect the
sensor head and elements against condensed
water.
The sensing probe must be mounted
horizontally or vertically, pointing
downwards. If possible, a drip sheet
should be fitted for each mounting.
Temperature range of sensing probe type T7: -40...180 °C (-40...356 °F)
Pressure range of sensing probe type T7: 0.01...20 bar (0.15...300 psi)
Pressure tight screw connection:
The screw connection for pressure tight installation up to 15 bar (218 psi) is available as an accessory
(see chapter 12 Replacement Parts /Accessories). For screw assembly refer to chapter 5.4 Remote
Sensing Probe Type T8.
Instructions for installation in a high-humidity environment:
If the process temperature differs significantly from the ambient temperature, the sensing probe should
be fully emerged in the process to avoid incorrect measurements and condensation problems on the
sensor head due to thermal conductivity.
It is recommended not to bring the sensing probe and colder metal parts in direct contact in order to avoid
condensation problems caused by thermal conductivity.
A 12 mm (1/2") mounting flange (HA010201) for the humidity probe is available as an accessories.
A 1/2" ISO (HA011102) and 1/2" NPT (HA011103) screw connection for the sensing probe is available as
an accessories.
5.4 Remote Sensing Probe Type T8
The sensing probe must be mounted
horizontally or vertically, pointing
downwards. If possible, a drip sheet should
be fitted for each mounting.
1/2" ISO or
1/2" NPT
code “cable length”
code “probe length”
∅12
(0.5")
Temperature range of sensing probe: 40...180 °C (-40...356 °F)
Pressure range of sensing probe: 0...100 bar (0...1 450 psi)
Safety instructions for pressure-tight feedthrough:
Do not assemble the probe and tighten the feedthrough if the plant is under pressure.
The plant must not be vented by releasing the nut (A).
Use appropriate seal on conical probe threads.
Never rotate the screw connection body (B) but hold the screw connection body (B) securely and turn
the nut (A).
Avoid unnecessary disassembly of pipe screw connections.
Position the cut in fitting >75 mm (2.95") from the end of the filter cap to the end of the fitting!
For a probe length of 65 mm a cut in fitting is not possible.

15
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
>75 mm (2.95")
Installation instructions
A
A
B
C
B
B
A
Tighten the nut (A) finger-tight.
Mark the nut (A) at 6 o‘clock position.
Hold the screw connection body (B) tight and tighten the nut
(A) with 1 ¼ turns till 9 o’clock position.
Assembly with high pressure applications and applications
with a high security factor:
Tighten the nut (A) until the probe (C) can no longer be
turned by hand and moved axially in the feedthrough.
Mark the nut (A) at 6 o’clock position.
Hold the screw connection body (B) tight and tighten the nut
(A) with 1 ¼ turns to 9 o’clock position.
Re-mounting:
Slide the measurement probe with clamping ring into the
fitting as far as it goes.
Tighten the nut finger-tight, then tighten by approx. a ¼ turn
using a spanner.
5.5 Remote Sensing Probe Type T10
1/2" ISO or 1/2" NPT
code “cable length”
code “probe length”
adjustable
min. 23 / max. 44/164/364
min. 0.9 / max. 1.7/6.5/14.3
∅12
(0.47")
∅13 (0.51")
The sensing probe must be mounted
horizontally or vertically, pointing
downwards. If possible, a drip sheet
should be fitted for each mounting.
Temperature range of sensing probe: -40...180 °C (-40...356 °F)
Pressure range of sensing probe: 0.01...20 bar (0.15...300 psi)
General safety instructions for installation
Because the sensing probe can be exposed to very high pressures in the measurement environment,
there is the risk of sudden, unintentional expulsion of the probe during or after improper installation.
Therefore, special precautions should be taken when working on the sensing probe or in its vicinity.
Bending over the sensing probe should be avoided under any circumstances!
During the installation of the sensor probe, make sure that the surface of the sensing probe is not
damaged! Damaging the probe could lead to damaged seals (consequence: leakage and pressure loss)
and to problems during removal (jamming).
Installation of the probe directly in the process

16 EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
stop valve stop valve
1/2" ISO or 1/2" NPT
inside diameter
≥ 13 mm (0.55")
metal sealing ring
fixed installation
(pressure tight up
to 20 bar (300 psi))
For direct probe installation, a stop valve should
be provided on both sides of the probe insert.
This allows the sensor probe to be removed for
maintenance and calibration without any problems.
If the sensor probe is installed in a pressure
chamber, make sure that the pressure in the
chamber and the ambient pressure are in
equilibrium before you remove the probe.
The temperature during installation may not vary
more than ±4 °C (±72 °F) from the operating
temperature.
Step 1:
Install the probe with the stop valves closed.
Step 2:
Insert the sensor probe into the process.
Step 3:
To ensure a secure installation of the probe, the
lock nut must be tightened to a defined torque of
30 Nm.
If no torque-spanner is available tighten the lock
nut by hand as far as possible. Continue to turn
with an open-ended spanner ~50°.
5.6 Remote Sensing Probes Type T17
The sensing probe must be mounted
horizontally or vertically, pointing
downwards. If possible, a drip sheet should
be fitted for each mounting.
Mounting the two probes, please make sure that
the minimum distance is 10 cm (4").
code “cable length”
code “cable length”
code “probe length”
∅12
(0.5")
150 (5.9")
∅6
(0.25")
1/2" ISO or 1/2" NPT
1/2" ISO or 1/2" NPT
Temperature range sensing probe: -40...180 °C (-40...356 °F)
Pressure range: 0.01...20 bar (0.15...300 psi)
Pressure tight screw connection:
The screw connections for pressure tight installation up to 20 bar (300 psi) are available as accessories
(see chapter 12 Replacement Parts / Accessories). For screw assembly refer to chapter 5.4.
Instructions for installation in a high-humidity environment:
If the process temperature differs significantly from the ambient temperature, the sensing probe should
be fully emerged in the process to avoid incorrect measurements and condensation problems on the
sensor head due to thermal conductivity.
It is recommended not to bring the sensing probe and colder metal parts in direct contact in order to
avoid condensation problems caused by thermal conductivity.
The humidity probe (12 mm (1/2")) and the temperature probe (6 mm (1/4")) must be mounted at the
same temperature level respectivily same installation height.

17
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
Mounting of sensing probe with flange (accessories):
A mounting flange 12 mm (1/2") for the humidity probe and a mounting flange 6 mm (1/4") for the
temperature probe are available as accessories.
Order codes:
RH probe (12 mm (1/2"))T probe (6 mm (1/4"))
Flange HA010201 HA010207
Mounting of sensing probe with screw connection (accessories):
A 1/2" ISO resp. a 1/2" NPT screw connection is available as an accessories for mounting both sensing
probes (6 mm (1/4") and 12 mm (1/2")).
Order codes:
RH probe (12 mm (1/2"))T probe (6 mm (1/4"))
1/2" ISO HA011102 HA011104
1/2" NPT HA011103 HA011105
5.7 Remote Sensing Probes Type T28
The sensing probes type T28 are optimised for application
in meteorology. Their rotation symmetric design allows
for mounting in a modern ventilated radiation shields, as
it is available with HA010508 (please refer to chapter 12
“Replacement Parts / Accessories”).
6 Electrical Connection
Important note:
The manufacturer cannot be held responsible for personal injuries or damage to property as a result of
incorrect handling, installation, wiring, power supply and maintenance of the device.
The electrical installation of the EE33 shall be performed by qualified personnel only. Observe all
applicable national and international requirements for the installation of electrical devices as well as
for power supply according to EN 61140, class III (EU) and class 2 supply (North America). For EE33
with alarm module (option AM2) or integrated power supply 100 - 240 V AC (option AM3), the metal
enclosure must be grounded during operation.

18 EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
6.1 Cable Glands
For cabling via the cable glands and direct electrical connection within the enclosure, the assignment of
the screw terminals in the lower part of the enclosure is as shown in Fig. 9.
serial data output
analogue output
supply
white
yellow
brown
RS232 / RS485
cable
8 - 35 V DC
12 - 30 V DC
Fig. 9 Pin assignment on screw terminals for electrical connection via cable glands
6.2 Connection on Bottom Part of Enclosure with Plugs
 (OptionE4/E5/E7)
12
3
4
5
12
3
4
5
Description: Connection assignment:
V+ 5
GND 4
GND 3
OUT1 2
OUT2 1
Description: Connection assignment:
GND-Ser 5
Rxd/B- 3
Txd/A+ 1
not assigned 2, 4
Euro-Standard
Euro-Standard
Plug for supply and
analogue output
(front view)
Plug for RS232 resp.
RS484 connection
(front view)
E4
E7
E5
The cable should be connected according to the number stamped in the plug as shown in the above
drawings!
6.2.1 Plug Option E4
1 plug for power supply and outputs
Lumberg
RKC 5/7
power supply+
analogue output

19
EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
6.2.2 CableGland/PlugOptionE5
1 cable gland / 1 plug for RS232
RS232
Lumberg
RSC 5/7
M16x1.5
6.2.3 Plug Option E7
2 plugs for power supply / outputs and RS485 network
Lumberg
RSC 5/7
Y-splitter * Lumberg
RKC 5/7
* Siemens 6ES7 194-1KA01-0XA0
power supply+
analogue output
RS485
network
6.3 Alarm Module Connection Diagram (Option AM2)
Rel 1 Rel 2
6.4 Connection Configuration for Integrated Power Supply (Option AM3)
12
3
4
5
Euro-Standard
Plug for RS232 and
analogue output
(front view)
Plug for 100-240V
metal enclosure
(front view)
Plug for 100-240V
polycarbonate enclosure
(front view)
Description: Connection assignment:
RxD / B- 5
TxD / A+ 4
GND 3
OUT1 2
OUT2 1
Description: Connection assignment:
Grounding (PE) 1
Phase (L1) 2
Neutral wire (N) 3
Description: Connection assignment:
Phase (L1) 1
Neutral wire (N) 3
External diameter of supply cable: 10-12 mm (0.39-0.47”)
Maximum wire cross section for connecting cable: 1.5 mm² (AWG 16)
The protection of the supply cable against excess current and short-circuit must be designated
to a wire cross section of 0.8 mm² (AWG 18) (6 A fuse).
National regulations for installation must be observed!
Bottom and middle part of the metal enclosure must be grounded during operation!

20 EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
6.5 Connection Configuration of Connectable Sensing Probe (Option PC6)
9-pole terminal
∅12 mm (0.5") sensing probe:
grey shielding shielding (yellow/green) grey (yellow/green) brown yellow blue black pink
5-pole terminal
shielding blue grey black brown
∅6 mm (0.25")sensing probe:
7 Operating Components
7.1 Circuit Board
1. Current/voltage output: If the sensor will be switched from current to voltage output signals
using the configuration software, then two jumpers must also be
positioned as follows:
for current signal: for voltage signal:
2. RS232/RS485: jumper set - RS232: jumper removed - RS485:
3. Fitting of the network chip: For refitting to RS485, an IC must be used (available as option J3
or via accessory HA010605).
The notch on the chip must match the receiver slot!
4. Display: Pinboards for connecting the display module.
5. Diagnosis LEDS: refer to chapter 9 “Humidity / Temperature Calibration”
refer to chapter 10.4 “Self Diagnosis and Error Messages”
6. Push-button (heated measurement cell): refer to chapter 10.2 “Automatic ReCovery (ARC)”
7. Push-buttons (calibration): refer to chapter 9 “Humidity / Temperature Calibration”
After removal of the enclosure cover, the following operating components on the circuit board may be
accessed.
1. current/voltage output
4. display
5. diagnosis LEDs
7. push-buttons (calibration)
6. push-button (heated measurement cell)
2. RS232/RS485
3. fitting of the
network chip