E+E Elektronik EE211 User manual

BA_EE211_e // V1.3 // technical data are subject to change
Operation Manual
EE211
HEATED HUMIDITY /
TEMPERATURE SENSOR

E+E Elektronik Ges.m.b.H. doesn‘t 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
1.1.1 General Safety Instructions..................................................................................................................................4
1.2 Environmental Aspects..................................................................................................................................4
1.2.1 Mounting and Start-up .........................................................................................................................................5
2 Scope of Supply ..................................................................................................................................5
2.1 Accessories ...................................................................................................................................................5
2.2 Spare Parts ...................................................................................................................................................5
3 Product Description ............................................................................................................................5
3.1 Operation Principle........................................................................................................................................5
3.2 Dimensions in mm (inch)...............................................................................................................................6
3.3 Connection Diagram......................................................................................................................................6
3.4 LED Indication ...............................................................................................................................................7
3.5 Display...........................................................................................................................................................7
3.6 Selection Output Signal Voltage / Current.....................................................................................................7
3.6.1 Examples .............................................................................................................................................................7
4 Assembly and Installation ..................................................................................................................7
5 Setup ....................................................................................................................................................8
5.1 EE-PCS Product Configuration Software ......................................................................................................8
5.2 Digital Interface RS485 with Modbus RTU Protocol......................................................................................8
5.2.1 Hardware Bus Termination...................................................................................................................................8
5.2.2 Address Switch ....................................................................................................................................................9
5.2.3 Digital Settings .....................................................................................................................................................9
5.2.4 Modbus Register Map..........................................................................................................................................9
5.2.5 Reading Example............................................................................................................................................... 11
6 Maintenance.......................................................................................................................................12
6.1 Cleaning ......................................................................................................................................................12
6.2 Filter Replacement ......................................................................................................................................12
6.3 Adjustment and Calibration .........................................................................................................................12
6.3.1 Definitions ..........................................................................................................................................................12
6.4 RH and T Calibration / Adjustment ..............................................................................................................12
6.4.1 Adjustment Procedure .......................................................................................................................................12
6.5 Individual Calibration / Adjustment of the T Probe.......................................................................................13
6.5.1 Adjustment Procedure .......................................................................................................................................13
7 Technical Data ..................................................................................................................................14

4Operating manual EE211 Heated humidity and temperature sensor
1 General
This operation manual serves for ensuring proper handling and optimal functioning of the device. The
operation 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 operation 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.
Intended use
The EE211 is intended for the measurement of relative humidity (RH) and temperature (T) in
environment with continuous high humidity. The use of the EE211 other than described in this manual is
not recommended.
The manufacturer cannot be held responsible for damages as a result of incorrect handling, installation
and maintenance of the device. Unauthorized modifications of the product lead to loss of all warranty
claims. The device may only be powered with separated extra-low voltage (SELV).
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 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.
1.1.1 General Safety Instructions
• The sensor and mainly the sensing head of the probes shall not be exposed
to extreme mechanical stress.
• Installation, electrical connection, maintenance and commissioning shall be performed by
qualified personnel only.
• Use the EE211 only as intended and observe all technical specs.
• Make sure that the T Probe is properly connected. The absence of the T probe forces the analogue
outputs into the upper limitation.
• The sensor must be operated with the filter caps on at all times. Do not touch the sensors inside the
sensing head.
• While replacing the filter cap (because of pollution for instance) against an original spare one please
take very good care to not touch the sensors.
1.2 Environmental Aspects
Products from E+E Elektronik® are developed and manufactured observing of all relevant requirements
with respect to environment protection. 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.

5
Operating manual EE211 Heated humidity and temperature sensor
1.2.1 Mounting and Start-up
The device has been produced under state of the art manufacturing conditions, has been thoroughly
tested and has left the factory 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 res-
pect to safe installation and operation on the device. This operating 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 plant operator to carry out the mentioned activities.
• The qualified staff must have read and understood this operating manual and must follow the instruc-
tions contained within.
• All process and electrical connections shall be thoroughly checked by authorized staff before putting
the system into operation.
• Do not install or start 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 system.
• Service operations other than described in this operating manual may only be performed
by the manufacturer.
2 Scope of Supply
• EE211 according ordering guide
• Cable gland M20 x 1.5
• Mounting materials
• Test report according to DIN EN10204 - 3.1
• Quick User Guide
2.1 Accessories
• Product configuration software EE-PCS (free download: www.epluse.com)
• Power supply adapter V03 (see data sheet Accessories)
• Protection cap for 12 mm (0.47”) probe HA010783
• USB configuration adapter HA011066
• Cable for T-probe (M12x1 socket, M12x1 plug)
- 2 m (6.6 ft) HA010801
- 5 m (16.4 ft) HA010802
- 10 m (32.8 ft) HA010803
2.2 Spare Parts
• Filter cap see data sheet „Accessories“
• Temperature probe EE07-MT
3 Product Description
3.1 Operation Principle
The humidity probe is continuously heated for avoiding the effects of condensation and high humidi-
ty onto the sensing elements, such as corrosion, high humidity drift or stray impedances. Thus, the
probe heating leads to outstanding long term stability. Based on the measured values humidity and
temperature, the EE211 calculates the dew point temperature Td whereas the separate, interchange-
able T-probe measures the ambient temperature. Ultimately, out of Td and T, the device calculates the
relative humidity RH as well as several other parameters like absolute humidity, mixing ratio, wet bulb
temperature or enthalpy.

6Operating manual EE211 Heated humidity and temperature sensor
Outstanding long term stability under high humidity conditions
The operation principle of EE211 copes with the causes for poor long-term stability of non-heated
sensors at continuously high humidity. The constant over-temperature of the EE211 sensing head
(approx. 5 °C = 9 °F) means max. 76 % RH humidity at the sensors and enables following benefits:
• The sensing head of EE211 stays dry even under condensing conditions, which prevents dust and dirt
from sticking to the sensor and leads to outstanding long-term stability.
• The combination of dry sensing head, E+E proprietary coating of the sensing element and sealed
solder pads minimize the impact of corrosive agents.
• Maximum humidity of 76 % RH at the sensor eliminates the drift caused by exposure to continuous
high humidity.
3.2 Dimensions in mm (inch)
80.6
(3.17“)
101
(3.98“)
Ø 12
(Ø 0.47“)
~ 55
(~2.16“)
5
(0.2“)
90 ± 0,3
(3.54 +0.11“)
46
(1.81“)
CABLE GLAND M20
Ø 13
(Ø 0.51“)
34
(1.34“)
Basis Unit: Temperature Probe:
M12x1
50 (2”)
8
(0.3”)
Ø6
(0.24“)
Ø12
(0.47”)
75 (2.9”)
Fig. 1 Dimensions of basis unit and temperature probe
3.3 Connection Diagram
Modbus RTU
15...35 V DC
24 V AC ± 20%
OUT1
OUT2
V
mA
V
mA
15...35 V DC
24 V AC ± 20%
Output: 0...5 V
0...10 V
0...20 mA
4...20 mA
Output:
EE211-M1J3 - Digital Output
EE211-M1A2/3/5/6 - Analogue Output
Bus termination resistor 120 Ω (jumper)
Address switches
Selection output signal U / I
Setup interface
Fig. 2 Connections and setup

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Operating manual EE211 Heated humidity and temperature sensor
3.4 LED Indication
Green LED
Information during normal operation
Blue LED
Information during setup with the optional USB
configuration adapter HA011066 and the EE-PCS
Product Configuration Software
on = everything OK on = USB stick connected to PC, no communication
with EE-PCS
flashing = the main board does not recognize the
measurement electronics inside the RH probe
flashing = communication in progress with EE-PCS
off = no power supply or main board failure off = USB stick not connected to PC
Tab. 1 LED Indication
3.5 Display
Factory Setup:
The display shows the two parameters selected for output 1 and output 2 (according to ordering code).
For the Modbus version the display shows RH and T.
User Setup:
The user can change the display layout to 1, 2 or 3 lines and select the parameters to be displayed by
using EE-PCS Product Configuration Software (free download from www.epluse.com/configurator) and
the optional USB configuration adapter HA011066 (not included in the scope of supply).
3.6 Selection Output Signal Voltage / Current
The factory setup of the output signal and scaling corresponds to the type number as ordered.
The output signal voltage (U) or current 3-wire (I) can be selected with the DIP switch on the main elec-
tronics board (see 3.3 Connection Diagram - EE211-M1A2/3/5/6). This does not impact on the scaling
of the outputs, which can be changed using the EE-PCS Product Configuration Software and the optio-
nal USB configuration adapter HA011066.
3.6.1 Examples
Factory setup: voltage output 0-5 V or 0-10 V corresponds to 0…100% RH.
After switching from U to I: current output 4 … 20 mA (3-wire) corresponds to 0 … 100% RH.
A change of the current output range for instance to 0-20 mA can be made subsequently with the EE-
PCS Product Configuration Software and the optional USB Configuration Adapter HA011066.
Factory setup: current output 0-20 mA or 4-20 mA (3-wire) corresponds to -10…50 °C.
After switching from I to U: voltage output 0-10 V corresponds to -10…50 °C.
A change of the voltage output range for instance to 0-5 V can be made subsequently with the EE-PCS
Product Configuration Software and the optional USB configuration adapter HA011066.
4 Assembly and Installation
• Insert the M20 cable gland included in the scope of supply into the corresponding opening of the
EE211 basis unit and fix it tight with the nut. Alternatively, it is possible to install a 1/2” conduit fitting
(not included in the scope of supply).
• Install the EE07-MT temperature probe either directly onto the M12 connector of the EE211 basis unit
or using the optional probe cable.
The entire EE211 shall be places inside the space to be monitored. The measured RH correspond to
the location of the T probe. Consequently, the T probe shall be positioned at the place of main interest
for RH measurement. For instance, in an environmental chamber, the EE211 basic unit can be fixed
conveniently on the inside wall, while the T probe can be placed in the middle of the chamber using the
optional probe cable.

8Operating manual EE211 Heated humidity and temperature sensor
5 Setup
The EE211 is ready to use and does not require any configuration by the user. The factory setup of
EE211 corresponds to the type number ordered. For ordering guide please see data sheet at www.eplu-
se.com/ee211. If needed, the user can change the factory setup by using the USB configuration adapter
(cod HA011066) and the EE-PCS, Product Configuration Software.
The user can change the scaling and the analogue output signal, the digital settings and perform RH
and T adjustment.
Note: The EE211 may not be connected to any additional power supply when using the USB configura-
tion adapter HA011066.
PC
HA011066
Fig. 3 Configuration adapter
5.1 EE-PCS Product Configuration Software
1. Download the EE-PCS Product Configuration Software from www.epluse.com/configurator and
install it on the PC.
2. Connect the E+E device to the PC using the USB configuration cable.
3. Start the EE-PCS software.
4. Follow the instructions on the EE-PCS opening page for scanning the ports and identifying the
connected device.
5. Click on the desired setup or adjustment mode from the main EE-PCS menu on the left and follow
the online instructions of the EE-PCS
5.2 Digital Interface RS485 with Modbus RTU Protocol
5.2.1 Hardware Bus Termination
If required, the bus termination shall be realized with 120 Ohm resistor, jumper on the board.
• Jumper mounted = bus terminated
• Jumper not mounted = bus not terminated

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Operating manual EE211 Heated humidity and temperature sensor
5.2.2 Address Switch
Address Switch
Address Switch
Address setting via EE-PCS Product Configuration Software
All DIP switches at position 0 → address has to be set via
Product Configuration Software
Factory setting: 239 (permitted values: 1…247).
Example: Slave address is set via configuration software.
Address setting via DIP switch
Setting the DIP switches to any other address than 0, overrules the
slave address set via configuration software (permitted values: 1…247).
Example: Slave address set to 11 (= 0000 1011 binary).
00000000
0
1
11010000
0
1
5.2.3 Digital Settings
Factory settings Selectable values
Baud rate 9600 9600, 19200, 38400, 57600, 76800, 115200
Data bits 8 8
Parity EVEN None, odd, even
Stop bits 11 or 2
Slave address 239 1...247
Tab. 2 Data transmission
ID address, baud rate, parity and stop bits can be set via:
1. EE-PCS, Product Configuration Software and the appropriate configuration cable.
2. Modbus protocol in the register 60001 (0x00) and 60002 (0x01). See Application Note Modbus
AN0103 (available on www.epluse.com/EE211)
The measured values are saved as a 32 bit float value and as 16 Bit signed integer, see the Modbus
Register map below.
The serial number as ASCII-code is located at read register address 30001-30008 (16 bit per address).
The firmware version is located at register address 30009 (bit 15...8 = major release; bit 7...0 = minor
release).
The sensor name is located at register address 30010.
5.2.4 Modbus Register Map
FLOAT 32 bit (read register):
Function code /
Register number1) [Dec] Register address2) [Hex] Parameter name Unit3)
30026 0x19 temperature [°C], [°F]
30028 0x1B relative humidity [%]
30030 0x1D water vapour partial pressure [mbar], [psi]
30032 0x1F dew point temperature [°C], [°F]
30034 0x21 wet bulb temperature [°C], [°F]
30036 0x23 absolute humidity [g/m³], [g/ft³]
30038 0x25 mixing ratio [g/kg], [gr/lb]
30040 0x27 specific enthalpy [kJ/kg], [BTU/lb]
30042 0x29 frost point temperature [°C], [°F]
Tab. 3 Float (read register)

10 Operating manual EE211 Heated humidity and temperature sensor
INTEGER 16 bit (read register):
Function code /
Register number1) [Dec] Register address2) [Hex] Parameter name Unit3) Scale4)
30301 0x12C temperature [°C], [°F] 100
30302 0x12D relative humidity [%] 100
30303 0x12E water vapour partial pressure [mbar], [psi] 100
30304 0x12F dew point temperature [°C], [°F] 100
30305 0x130 wet bulb temperature [°C], [°F] 100
30306 0x131 absolute humidity [g/m³], [g/ft³] 100
30307 0x132 mixing ratio [g/kg], [gr/lb] 100
30308 0x133 specific enthalpy [kJ/kg], [BTU/lb] 100
30309 0x134 frost point temperature [°C], [°F] 100
Tab. 4 Integer 16 bit (read register)
INTEGER 16 bit (read and write register):
Function code / Register number1) [Dec] Register address2) [Hex] Parameter name
60001 0x00 Slave-ID5) modbus address
60002 0x01 Modbus protocol settings6
Tab. 5 Integer 16 bit (read and write register)
INFO (read register):
Function code / Register number1) [Dec] Register address2) [Hex] Parameter name
30001 0x00 Serial number (as ASCII)
30009 0x01 Firmware version
30010 0x09 Sensor Name
Tab. 6 Info (read register)
1) Register number starts from 1
2) Register address starts from 0
3) The choice of measurement units (metric or non-metric) must be done in the ordering guide, see EE211 data sheet.
Switching from metric to non-metric or vice versa by using the EE-PCS is not possible.
4) 100 is scale 1:100 (2550 is equivalent to 25.5 °C)
5) If the ID is set via DIP-switch the response will be NAK
6) For Modbus protocol settings please see Application Note Modbus AN0103 (available on www.epluse.com/EE211)

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Operating manual EE211 Heated humidity and temperature sensor
5.2.5 Reading Example
Example of MODBUS RTU command for reading the temperature (float value) T = 26.652524 °C
from the register 0x19:
Device EE211; slave ID 239 [EF in Hex]
Reference document, chapter 6.3: www.modbus.org/docs/Modbus_Application_Protocol_V1_1b.pdf
Request [Hex]: EF 03 00 19 00 02 EB 7B
Modbus ID
address
Function
code
Starting
address Hi
Starting
address Lo
No. of
register Hi
No. of
register Lo CRC
Request
[Hex]: EF 03 00 19 00 02 EB 7B
Response [Hex]: EF 03 04 38 5F 41 D5 0A E3
Modbus ID
address
Function
code
Byte
count
Register 1
value Hi
Register 1
value Lo
Register 2
value Hi
Register 2
value Lo CRC
Response
[Hex]: EF 03 04 38 5F 41 D5 0A E3
For decoding of float values (stored according standard IEEE754), please refer to AN0103, chapter 7.
(available on www.epluse.com/ee211).
Example of decoding:
Response [Hex]: Value in decimal
Byte 1
(Register 2 - Hi)
Byte 2
(Register 2 – Lo)
Byte 3
(Register 1 - Hi)
Byte 4
(Register 1 - Lo)
41 D5 38 5F 26.652524

12 Operating manual EE211 Heated humidity and temperature sensor
6 Maintenance
6.1 Cleaning
If needed, the sensing head of the humidity probe can be cleaned by the user (see cleaning instruction
- www.epluse.com/cleaning-instructions). The EE07-MT probe does not require any special cleaning
because the temperature sensor is encapsulated in the stainless steel body of the probe.
6.2 Filter Replacement
In a dusty, polluted environment it might be necessary to replace the filter cap once in a while. In most
of the cases, a clogged filter shows visible contamination or dirt. Longer response time of the RH
measurement also indicates a clogged filter cap. In such cases, replace the filter by a new, original one,
see data sheet “Accessories”.
Procedure:
• Turn the filter cap counter-clockwise for removing it.
• Install the new filter cap fingertight by turning it clockwise
6.3 Adjustment and Calibration
6.3.1 Definitions
Calibration
The calibration documents the accuracy of a measurement device. The device under test (specimen) is
compared with the reference and the deviations are documented in a calibration certificate. During the
calibration, the specimen is not changed or improved in any way.
Adjustment
The adjustment improves the measurement accuracy of a device. The specimen is compared with the
reference and brought in line with it. An adjustment can be followed by a calibration which documents
the accuracy of the adjusted specimen. The 2-point adjustment is recommended for best accuracy over
a wide RH and / or T range.
6.4 RH and T Calibration / Adjustment
• One point (offset) calibration/adjustment at ambient T can be easily performed by comparison with
an adequate RH and a T reference. The E+E Omniport 30 handheld device can serve for instance as
such reference. Omniport 30 can be optionally supplied with an accredited calibration certificate. See
E+E calibration brochure at www.eplusecal.com.
• For multiple point calibration or 2-point adjustment for RH and T, the EE211 as a whole (both probes)
shall be placed in a climate chamber.
6.4.1 Adjustment Procedure
• Connect the EE211 to the a Windows PC, using the EE-PCS Product Configuration Software and the
optional USB configuration adapter HA011066.
• EE-PCS (free download from www.epluse.com/configurator) shall be installed on the PC.
• Start EE-PCS and proceed with 1 or 2-point adjustment of the RH and of the T reading.
Please note:
The adjustment data is stored in the main electronics board of the EE211. The factory adjustment of
the heated humidity probe and of the T probe is not altered. In case of replacing of theT probe it is
necessary to return to the factory setup of EE211.

13
Operating manual EE211 Heated humidity and temperature sensor
6.5 Individual Calibration / Adjustment of the T Probe
The T probe can be also adjusted separately, which might be desirable in high demanding applications.
For best accuracy it is advisable to use a dry block calibrator.
6.5.1 Adjustment Procedure
• Connect the T probe to the a Windows PC using the EE-PCA product configuration adapter and the
cable HA011057 (see data sheet EE-PCA).
• EE-PCS (free download from www.epluse.com/configurator) shall be installed on the PC.
• Start EE-PCS and proceed with the calibration or adjustment of the T reading.
Please note:
In case of individual adjustment, the adjustment data is stored in the T probe, the factory setup of the
EE211 basis unit is not altered. Consequently, the T probe can be readjusted or replaced at any time
without the need of readjusting the EE211 basis unit.

14 Operating manual EE211 Heated humidity and temperature sensor
7 Technical Data
Measurands
Relative Humidity (RH)
Sensor E+E Sensor HCT01-00D, protected by E+E proprietary coating
Working range 0...100 % RH
RH accuracy1) (incl. hysteresis,
non-linearity and repeatability) ±(1.3 + 0.007*measured value) % RH -5...30 °C (23...86 °F)
Temperature (T)
Sensor Pt1000 (tolerance class A, DIN EN 60751)
T-accuracy ± ∆°C
°C
(at 20 °C (68 °F) : ±0,1 °C)
Outputs
Analogue output 0-5 V / 0-10 V -1 mA < IL< 1 mA IL= load current
(RH: 0...100 %; T: see ordering guide) 0-20 mA / 4-20 mA (3-wire) RL ≤ 500 Ohm RL= load resistor
Digital interface RS485, Modbus RTU, max. 32 unit load devices in one bus
General
Power supply (Class III) 15 - 35 V DC2) or 24 V AC ±20 %
Current consumption at 24 V
Display 1, 2 or 3 lines, user configurable, with backlight
Connection Screw terminals, max. 1.5 mm2
Enclsoure material Polycarbonate, UL94V-0 (with Display UL94HB) approved
T-probe material Stainless steel 1.4571
Protection class IP65 / NEMA 4
Cable gland M20 x 1.5
Electromagnetic compatibility EN61326-1
(Industrial Environment) EN61326-2-3
Temperature range Operation / Storage: -40...60 °C (-40...140 °F)
Temperature range with display Operation: -20...50 °C (-4...122 °F)
Storage: -20...60 °C (-4...140 °F)
1) Traceable to intern. 󰀬andards, admini󰀬rated by NIST, PTB, BEV,...
The accuracy 󰀬atement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times 󰀬andard deviation).
The accuracy was calculated in accordance with EA-4/02 and with regard to GUM (Guide to the Expression of Uncertainty in Measurement).
2) USA & Canada: class 2 supply required, max. supply voltage 30V
AC DC
without Display with Display without Display with Display
Voltage ouput max. 38 mArms max. 49 mArms max. 13 mA max. 19 mA
Current ouput typ. 75 mArms typ. 85 mArms max. 34 mA max. 40 mA
Digital interface typ. 23 mArms typ. 40 mArms typ. 8 mA typ. 17 mA

15
Operating manual EE211 Heated humidity and temperature sensor

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