E+E Elektronik EE29 Series User manual

MANUAL
MANUAL
Hardware and Software
Hardware and Software
Series EE29/EE31
Series EE29/EE31
HUMIDITY/TEMPERATURE
HUMIDITY/TEMPERATURE
TRANSMITTER
TRANSMITTER
BA_EE29_EE31_05_e // technical data are subject to change // 191678

2
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 2004 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 residential installa-
tion. 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 the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Caution:
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this device.
CANADIAN
ICES-003 notification:
This Device B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
Canada.

TABLE OF CONTENTS
HARDWARE
1. GENERAL 4
1.1 Symbol assertion 4
1.2 Safety instructions 4
1.3 Environmental information 4
2. PRODUCT DESCRIPTION 5
3. INSTALLATION 5
3.1 Mounting Model A 5
3.2 Mounting Model B 6
3.3 Mounting Model D 6
3.4 Mounting Model E 6
3.5 Mounting Model F 6
4. ELECTRICAL CONNECTIONS 7
4.1 Connection diagram EE29/31 7
4.2 Connection diagram alarm module / Option 7
4.3 Connection configuration EE29/31 with plug connections / Option 7
5. OPERATING COMPONENTS 8
5.1 Circuit board 8
5.2 Display module / Option 9
6. ALARM MODULE (optional) 10
7. HUMIDITY/TEMPERATURE CALIBRATION 11
7.1 2-point humidity calibration 11
7.2 2-point temperature calibration 12
7.3 1-point humidity calibration 14
7.4 1-point temperature calibration 15
7.5 Resetting to factory calibration 16
8. MAINTENANCE 17
8.1 Sensor replacement 17
8.2 Probe replacement 17
8.3 Self-diagnosis and error messages 18
9. NETWORK 19
10. REPLACEMENT PARTS / ACCESSORIES 21
11. TECHNICAL DATA 22
CONFIGURATION SOFTWARE
1. GENERAL INFORMATION 25
2. INSTALLATION 25
3. ICONS ON THE TOOLSBAR 26
3.1 File 26
3.2 Interfaces 26
3.3 Group 27
3.4 Transmitter 27
3.5 ?-Information 28
4. ICON LIST 29
5. INDEX - INDEX CARDS 29
5.1 Analogue 29
5.2 Relay 30
5.3 Sensor / Probe replacement 31
5.4 Calibration 32
5.5 Information 34
6. OVERVIEW 35
6.1 How to set-up a new transmitter 35
6.2 How to read the configuration of a transmitter 35
6.3 How to save the configuration in a transmitter 35
3

4
1. GENERAL
The manual is a part of the scope of supply and serves to ensure proper handling and
optimum functioning of the instrument. For this reason, the manual must be read
before start-up.
In addition, the manual is for all personnel who require knowledge concerning transport, setup,
operation, maintenance and repair.
The manual must not be used for the purpose of competition without a written consent from
E+E Elektronik®and must also not be forwarded to third parties.
Copies for personal use are permitted.
All information, technical data and illustrations contained in these instructions are based on
information available at the time of publication.
1.1 Symbol assertion
This symbol indicates a safety instruction.
These safety instructions should always be followed carefully.
By not following these instructions injuries of persons or material damage could happen.
Therefore E+E Elektronik®does not accept liability.
This symbol indicates a note.
These notes should be observed to achieve optimum functioning of the equipment.
1.2 Safety instructions
General Safety Instructions
• Excessive mechanical loads and incorrect usage should always be avoided.
• Take care when unscrewing the filter cap as the sensor element could be damaged.
• The sensor is an Electro Static Discharge sensitive component (ESD). When
touching the sensor element, ESD protective measures should be followed.
• Grip sensors only at the lead wires.
• Installation, electrical connection, maintenance and commissioning should be
performed by qualified personnel only.
Safety instructions for use of the alarm module with
voltages >50V
• To insulate the optional alarm module from the low-voltage side of the transmitter, the
partition provided for this purpose must be fitted in the lower section.
• During operation of the instrument the modular housing must be completely closed.
• The protection class of an opened housing corresponds to IP00 and direct contact
with components carrying dangerous voltages is therefore possible. In general, work
on live components should be avoided and when absolutely necessary, should be
performed by qualified personnel only.
1.3 Environmental aspects
Equipment from E+E Elektronik®is developed with due consideration to all resultant
environmental issues. When you dispose the equipment you should avoid environmental pol-
lution.
For disposal of the transmitter the individual components must be sorted with care. The hou-
sing consists of recyclable polycarbonate. The electronics must be collected as electronic
scrap and disposed of according to the regulations in force.
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Hardware

2. PRODUCT DESCRIPTION
Humidity/temperature transmitters of the EE29/EE31 series provide multifunctionali
-
ty, highest accuracy and simple installation and maintainance. The
modular housing
enables a user-friendly operation and a fast replacement of the sensor unit for
service purposes.
By selecting a suitable housing version the EE29/EE31 series can be used for the
entire range of humidity measurement applications:
EE29/EE31
• Model A for wall mounting.
• Model B for duct mounting.
•Model D with remote sensing probe for measurements from -40 to 180degC (-40...356°F)
.
•Model E with remote sensing probe for pressure-tight applications up to 15 bar
(218psi)
•Model F for wall mounting with rear cable outlet.
Various options extend the large number of applications.
The construction of the transmitter enables field calibration and local loop
calibration in a simple way.
5
3. INSTALLATION
Mounting of the housing
1. Drill the mounting holes according to the drilling template.
For installtion on mounting rails use a special installation set
(see Hardware, chapter 10 "Replacement parts / Accessories")
2. The bottom part of the housing is mounted with 4 screws (not
supplied), e.g.: 4.5x30mm
3.
Connection of the transmitter (see Hardware, chapter 4 "Electrical
connections")
4.
Mounting of the middle part and cover with 4 screws (included in the
scope of supply)
3.1 Mounting of model A (Wall mounting)
Transmitters of the EE29/31-xAx series are designed for wall mounting.
Working range: -40...60 degC (-40...140°F)
with display: -20...50degC (-4...122°F)
The transmitter must be mounted with the sensor probe pointing
downwards!
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Hardware

6
3.2 Mounting of model B (Duct mounting)
Transmitters of the EE29/31-xBx series are designed for duct mounting.
Working range: -40...80degC (-40...176°F)
with display: -20...50degC (-4...122°F)
The sensor probe must point horizontal or downwards in the
duct channel.
3.3 Mounting of model D (Remote sensing probe)
Transmitters of the EE29/31-xDx series are transmitters with remote
sensing probes for measurements in the extended temperature range.
Working range of sensor probe: -40...180degC (-40...356°F)
Working range of electronics: -40...60degC (-40...140°F)
with display: -20...50degC (-4...122°F)
Mounting of the remote sensing probe (Series D):
Using the stainless steel mounting flange (refer to accessories) it is pos-
sible 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 sensor probe must be mounted horizontally or vertically,
pointing downwards. When possible, a drip sheet should be
fitted for each mounting.
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stainless steel mounting flange
bow for draining water
of condensation
13
vertical/horizontal mounting
dripwater
protection
85
34
roof mounting
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3.4 Mounting of model E (with pressure-tight sensor)
Transmitters of the EE29/31-xEx series are transmitters with remote,
pressure-tight sensor probes that are suitable for applications at
pressures between 0.01...15 bar (0.15...218psi).
Working range temperature: -40...180degC (-40...356°F)
pressure: 0.01...15 bar (0.15...218psi)
Working range of electronics: -40...60degC (-40...140°F)
with display: -20...50degC (-4...122°F)
The sensor probe must be mounted horizontally or vertically
pointing downwards. Where possible, a drip sheet should be fit-
ted for each mounting.
i
code“probelength
”
min.48/max.19
8(398)
3.5 Mounting of model F (Wall mounting with rear
cable outlet)
Transmitters of the EE29/31-xFx series are designed for wall mounting.
Cable entry is from the rear side (e.g.: clean-room applications...).
Working range: -40...60 degC (-40...140°F)
with display: -20...50degC (-4...122°F)
The transmitter must be mounted with the sensor probe pointing
downwards!
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Hardware

7
Versorgung /
supply
≅
8 - 48VDC
12 - 35VAC
GND
OUT 1
OUT2
3
5
6
7
8
4
GND 2
V+ 1
V
V
mA
mA Analog
Ausgang /
analogue output
RxD/B-
RS232 / RS485 serieller
Datenausgang /
serial data output
TxD/A+
GND Ser
NC
3
NO
1
C
2
NC
6
NO
4
C
5
4.2 Alarm module connection diagram / Option
4.1 Connection diagram EE29/31
Rel 1 Rel 2
4. ELECTRICAL CONNECTIONS
1
2
3
4
5
1
2
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
4.3
Connection configuration EE29/31 with plug connections
/ Option
The cable should be connected according to the number
stamped in the plug as shown in the above drawings!
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Hardware
Plug for supply and
analogue output
(front view)
Plug for RS232 resp.
RS484- connection
(front view)

8
S1
D1
IU
D2
S2
5. Push-Buttons
for calibration
purposes
2. RS232/RS485
3. Fitting of the
Network Chip
6. Diagnosis LEDs
4. Display
1. Current/voltage output
1. Current/voltage output: When the device will be switched from current to voltage
output signals using the configuration software supplied,
then two jumpers must also be positioned as follows.
for current signals:
for voltage signals:
2. RS232/RS485: For the transition from RS232 to RS485 (network
operation) these jumpers must be removed.
3. Fitting of the network chip: For refitting to RS485, an IC must be used (available as
an option). The notch on the chip must match the
receiver slot!
4. Display: These pinboards are determined for connecting the
display module.
5. Push-Buttons for calibration purposes: see Hardware, chapter 7 “Humidity/Temperature calibration”
6. Diagnosis LEDs: see Harware, chapter 7 "Humidity/Temperature calibration,"
and chapter 8.3 "Self diagnosis and error messages"
5.1 Circuit board
After removal of the housing cover, the following operating components on the circuit board
may be accessed for adaptation of the transmitter to the desired configuration.
5. OPERATING COMPONENTS
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U
I
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9
6. Status line
3. Measurand selection and
4. Min/Max function
1. Measurand
5. Measured values
2. Units
RH: 38.57%
REL1
SI SI US
RH Rel. humidity % %
TTemperature degC °F
hEnthalpy kJ/kg ftlbf/lb
rMixture ratio g/kg gr/lb
dv Absolute humidity g/m³ gr/ft
Tw Wet-bulb temperature degC °F
Td Dew-point temperature degC °F
eWater vapour partial pres. mbar psi
1. MEASURAND:2. UNITS:3. MEASURAND SELECTION:
5.2 Display module / Option:
EE29
EE31
Press the ∆
or
∇ button to
select the
desired
physical
quantity.
4. MIN / MAX FUNCTION:
RH: 63.0%
MAX
RH: 63.0%
MIN
Transmitters of the EE29/31 series can display the highest and lowest measured value
measured since the last reset.
Highest measured value:
1. Select the desired measurand.
2. To display the maximum value of the selected measurand, press the ∆
button for at
least five seconds.
3.1.To reset the instrument to its normal operating status, press the ∆
button once again
for five seconds.
3.2.If both buttons are pressed for at least five seconds while the maximum value is
displayed →the "MAX" symbol disappears →
the maximum value will be deleted
(Reset).
Lowest measured value:
1. Select the desired measurand.
2. To display the minimum value of the selected quantity, press the ∇
button for at least
five seconds.
3.1.To reset the instrument to its normal operating status, press the ∇
button once again
for five seconds.
3.2.If both buttons are pressed for at least five seconds while the minimum value is
displayed →the "MIN" symbol disappears →the minimum value will be deleted
(Reset).
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10
RH: 63.0%
REL1
RH: 63.0%
REL2
6. ALARM MODULE (optional)
The optional alarm module can be used for alarm and error issues and other simple control
functions. This module can be configured using the configuration software supplied.
The user thus has the option of setting the measurand to be monitored (RH, T, Td,...) and the
threshold hysteresis for each relay. (For the procedure, see the Configuration sofware, chapter 5.2
“Relay”)
max. switched voltage / max. switched current: 250 VAC / 6A
28 VDC / 6A
Minimum load: >100mA / 12V
Schaltpunkt
switching point
[%,°C,kj/kg,
g/kg,g/m³,mbar,...]
RelaisStatus
relay status
7062
Ausschaltpunkt
switchingoff Hysterese
Einschaltpunkt
switchingon
EIN
ON
AUS
OFF
8%
NC
NC
11
11
C
C
12
12
NO
NO
13
13
Schaltpunkt
switching point
[%,°C,kj/kg,
g/kg,g/m³,mbar,...]
RelaisStatu
s
relay status
7062
Ausschaltpunkt
switchingoff Hysterese
Einschaltpunkt
switchingon
EIN
ON
AUS
OFF
8%
NC
NC
14
14
C
C
15
15
NO
NO
16
16
- MIN; MAX: see Point "MIN/MAX Function", see Hardware, chapter 5.2 “Display module”
- CALIB LOW; CALIB HIGH: indicates the low or high humidity/temperature calibration point.
- REL1 / REL2: Status Relay
- "ERROR 01....04": see Hardware, chapter 8.3 “Self-diagnosis and error messages”
5. MEASURED VALUES:
from up to units
EE31-A,F EE31-B EE31-D,E
Humidity RH 0 100 100 100 % RH
Temperature T-40 (-40) 60 (140) 80 (176) 180 (356) degC (°F)
Dew-point temperature Td -80 (-112) 60 (140) 80 (176) 100 (212) degC (°F)
Frost-point temperature Tf -80 (-112) 0 (32) 0 (32) 0 (32) degC (°F)
Wet-bulb temperature Tw 0 (32) 60 (140) 80 (176) 100 (212) degC (°F)
Water vapour partial pressure e0 (0) 200 (3) 500 (7.5) 1100 (15) mbar (psi)
Mixture ratio r0 (0) 425 (2900) 999 (9999) 999 (9999) g/kg (gr/lb)
Absolute humidity dv 0 (0) 150 (60) 300 (120) 700 (300) g/m3 (gr/f3))
Specific enthalpy h0 (0) 400 (50000) 1000 (375000) 2800 (999999) kJ/kg (lbf/lb)
The measurement ranges indicated above can be set to individual requirements using the
configuration software supplied (see Configuration software, chapter 5 "Index - Index Cards").
The dominant value of the appropriate quantity is displayed in this field. For the factory
configuration, the measured values may fall between the measurement ranges shown below.
6. STATUS LINE:
Switching relay 1:
Switching relay 2:
If relay 1 has tripped (ON),
then REL1 is displayed.
If relay 2 has tripped (ON),
then REL2 is displayed.
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11
7. HUMIDITY/TEMPERATURE CALIBRATION
The EE29/31 transmitter series can be calibrated in two ways.
-1-point humidity/temperature calibration: quick and simple calibration on a defined
humidity/temperature point (working point).
-2-point humidity/temperature calibration:
simple calibration for accurate measuring results
over the whole humidity/temperature working range.
•
To reach a temperature balance it is recommended to keep the transmitter and the
reference chamber (e.g. HUMOR 20,...) for minimum 4 hours in the same room.
•
During stabilisation period and calibration procedure it is important to keep the tempe-
rature constant in the reference climate chamber.
•
For calibration the humidity sensor probe must be stabilised at least 20 minutes into the
reference chamber.
• Replace a used dirty filter cap before calibration!
7.1 2-point humidity calibration
For accurate adjustment over the whole working range or in case of sensor exchanges a
two point calibration is recommended.
• Start calibration at the low humidity calibration point!
• The humidity difference between the two points should be > 30%RH
• Low humidity point < high humidity point
• Two point calibration may be performed directly on the circuit board, or for
convenience, using the configuration software supplied (for more details, see
Configuration Software, chapter 5.4 ”Calibration”)
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i
1. Insert the sensor probe into the reference humidity 1 (
low
calibration point
) and stabilise for at least 20 minutes.
2. BUTTON S2:
Pressing the button for 5 seconds starts the
procedure for the calibration mode RH
. The calibration mode is
indicated by the lit LED "D2" on the circuit board.
3. BUTTON S2:
Pressing the button for 5 seconds starts the
procedure for the low calibration point
. The calibration mode is
indicated by the lit LED "D2" and the symbol "CALIB LOW" will
appear on the optional LCD display.
4. BUTTON S1 (up) and S2 (down)
: Pressing one of the two
buttons will adjust the measuring value in steps of 0.1% up or
down to the reference value. The actual
measuring value is indi
-
cated on the display or can be measured with the analogue out
-
put.
As soon as the measured value is changed, "D1" is flas
-
hing.
5. BUTTON S1 (store)
: Pressing the button for 5 seconds
stores the calibration value
and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB LOW" will disappear from the optional LCD
display.
BUTTON S2 (cancel)
: Pressing the button for 5 seconds the
calibration procedure will be ended without storing
the
calibration values. LED "D2" flashes to indicate exiting of the
calibration mode and the symbol "CALIB LOW" will
disappear from the optional LCD display.
low calibration point:
2-point humidity calibration procedure on the circuit board!
S2
S2
S2
S1
S1
S2
D2
green
D2
green
D2
green
D1
red
D2
D2
“CALIB LOW”
Hardware

12
6. Insert the sensor probe into the reference humidity 2 (high
calibration point) and stabilise for at least 20 minutes.
7. BUTTON S2: Pressing the button for 5 seconds starts the
procedure for the calibration mode RH. The calibration mode is
indicated by the lit LED "D2" on the circuit board.
8. BUTTON S1: Pressing the button for 5 seconds starts the
procedure for the high calibration point. The calibration mode is
indicated by the lit LED "D2" and the symbol "CALIB HIGH" will
appear on the optional LCD display.
9. BUTTON S1 (up) and S2 (down): Pressing one of the two
buttons will adjust the measuring value in steps of 0.1% up or
down to the reference value. The actualmeasuring value is indi-
cated on the display or can be measured with the analogue out-
put. As soon as the measured value is changed, "D1" is flas-
hing.
10. BUTTON S1 (store): Pressing the button for 5 seconds
stores the calibration value and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB HIGH" will disappear from the optional LCD
display.
BUTTON S2 (cancel): Pressing the button for 5 seconds the
calibration procedure will be ended without storing the calibra-
tion values. LED "D2" flashes to indicate exiting of the calibra-
tion mode and the symbol "CALIB HIGH" will disappear from
the optional LCD display.
high calibration point:
7.2 2-point temperature calibration
•Start calibration at the low calibration point!
•The temperature difference between the two points should be at least 30 degC!
•Low temperature point < high temperature point
•Attention: A two point temperature calibration is not supported by the
configuration software and must therefore be done directly on the circuit
board! (see the following procedure)
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S2
S1
S1
S1 S2
D2
green
D2
green
D2
green
D1
red
D2
D2
“CALIB HIGH”
Hardware
S2

13
1. Insert the sensor probe into the reference temperature 1 (
low
calibration point
) and stabilise for at least 10 minutes.
2. BUTTON S1:
Pressing the button for 5 seconds starts the
procedure for the calibration mode temperature
. The calibration
mode is indicated by the lit LED "D1" on the circuit board.
3. BUTTON S2:
Pressing the button for 5 seconds starts the
procedure for the low calibration point
. The calibration mode is
indicated by the symbol "CALIB LOW" on the optional LCD
display.
4. BUTTON S1 (up) and S2 (down):
Pressing one of the two
buttons will adjust the measuring value in steps of 0.1 degC up
or down to the reference value. The actual
measuring value is
indicated on the display or can be measured with the analogue
output.
As soon as the measured value is changed, "D1" is flas
-
hing.
5. BUTTON S1 (store):
Pressing the button for 5 seconds
stores the calibration value
and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB LOW" will disappear from the optional LCD
display.
BUTTON S2 (cancel)
: Pressing the button for 5 seconds the
calibration procedure will be ended without storing
the
calibration values. LED "D2" flashes to indicate exiting of the
calibration mode and the symbol "CALIB LOW" will disappear
from the optional LCD display.
low calibration point:
6.
Insert the sensor probe into the reference temperature 2
(high calibration point
) and stabilise for at least 10 minutes.
7. BUTTON S1:
Pressing the button for 5 seconds starts the
procedure for the calibration mode temperature. The calibra
-
tion mode is indicated by the lit LED "D1" on the circuit board.
8. BUTTON S1:
Pressing the button for 5 seconds starts the
procedure for the high calibration point
. The calibration mode
is indicated by the symbol "CALIB HIGH" on the optional LCD
display.
9. BUTTON S1 (up) and S2 (down):
Pressing one of the two
buttons will adjust the measuring value in steps of 0.1 degC
up or down to the reference value. The actual
measuring value
is indicated on the display or can be measured with the analo
-
gue output.
As soon as the measured value is changed, "D1"
is flashing.
10. BUTTON S1 (store):
Pressing the button for 5 seconds
stores the calibration value
and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB HIGH" will disappear from the optional LCD
display.
BUTTON S2 (cancel)
: Pressing the button for 5 seconds the
calibration procedure will be ended without storing
the cali
-
bration values. LED "D2" flashes to indicate exiting of the cali
-
bration mode and the symbol "CALIB HIGH" will disappear
from the optional LCD display.
2-point temperature calibration procedure
on the circuit board!
high calibration point:
S2
S2
S1
S1
S1 S2
D1
red
D1
red
D1
red
D2
D2
“CALIB LOW”
S1
S1
S2
S1
S1
S2
D1
red
D2
D2
“CALIB HIGH”
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14
7.3 1-point humidity calibration
When the working range is limited to a certain more narrow range,
a calibration at one humidity point is absolutely sufficient.
• In accordance with the working range, either the high or low
calibration point should be selected. (CP > or < 50% RH)
• This calibration causes an extra inaccuracy for the rest of the
working range.
• The one point humidity calibration may be done directly on the
circuit board, or for convenience, using the configuration soft-
ware supplied. (for more details, see the Configuration software,
5.4 “Calibration” / 1-point humidity calibration)
1-point humidity calibration procedure on the circuit board!
1. Insert the sensor probe into the reference humidity (calibra-
tion point) and stabilise for at least 20 minutes.
2. BUTTON S2: Pressing the button for 5 seconds starts the
procedure for the calibration mode RH. The calibration mode is
indicated by the lit LED "D2" on the circuit board.
3. BUTTON S1: Pressing the button for 5 seconds starts the
procedure. The calibration mode is indicated by the lit LED
"D2" and the symbol "CALIB HIGH" will appear on the optional
LCD display (CP = 50% RH).
or
BUTTON S2: Pressing the button for 5 seconds starts the
procedure. The calibration mode is indicated by the lit LED
"D2" and the symbol "CALIB LOW" will appear on the optional
LCD (CP < 50% RH).
4. BUTTON S1 (up) and S2 (down): Pressing one of the two
buttons will adjust the measuring value in steps of 0.1% up or
down to the reference value. The actual measuring value is indi-
cated on the display or can be measured with the analogue output.
5. BUTTON S1 (store): Pressing the button for 5 seconds
stores the calibration value and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB LOW" or "CALIB HIGH" will disappear from the
optional LCD display.
BUTTON S2 (cancel): Pressing the button for 5 seconds the
calibration procedure will be ended without storing the calibra-
tion values. LED "D2" flashes to indicate exiting of the calibra-
tion mode and the symbol "CALIB LOW" or "CALIB HIGH" will
disappear from the optional LCD display.
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D2
green
D2
green
D2
green
D2
green
S2
S2
S1
S1
S1 S2
D1
red
D2
D2
“CALIBHIGH”
“CALIB LOW”
S2
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15
7.4 1-point temperature calibration on the
circuit board
When the working range is limited to a certain more narrow range,
a calibration at one temperature point is absolutely
sufficient.
• In accordance with the working range, either the high or low
calibration point should be selected. (CP ≥or < 45 degC)
•
This calibration causes an extra inaccuracy for the rest of the
working range.
•
The one point temperature calibration may be performed direct
-
ly on the circuit board, or for convenience, using the
configuration software supplied. (for more details, see "Software"
manual, 1-point temperature calibration)
1-point temperature calibration procedure on the circuit board!
1. Insert the sensor probe into the reference temperature
(calibration point) and stabilise for at least 30 minutes.
2. BUTTON S1
: Pressing the button for 5 seconds starts the
procedure for the calibration mode temperature
. The calibration
mode is indicated by the lit LED "D1" on the circuit board
3. BUTTON S1
: Pressing the button for 5 seconds starts the
procedure. The calibration mode is indicated by the symbol
"CALIB HIGH" on the optional LCD display (CP ≥
45 degC).
or
BUTTON S2
: Pressing the button for 5 seconds starts the pro
-
cedure. The calibration mode is indicated by the symbol "CALIB
LOW" on the optional LCD display (CP ≥45 degC).
4. BUTTON S1 (up) and S2 (down)
: Pressing one of the two
buttons will adjust the measuring value in steps of 0.1degC up
or down to the reference value. The actual
measuring value is
indi
cated on the display or can be measured with the analogue out
-
put.
5. BUTTON S1 (store)
: Pressing the button for 5 seconds
stores the calibration value
and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB LOW" or "CALIB HIGH" will disappear from the
optional LCD display.
BUTTON S2 (cancel)
: Pressing the button for 5 seconds the
calibration procedure will be ended without storing
the
calibration values. LED "D2" flashes to indicate exiting of the
calibration mode and the symbol "CALIB LOW" or "CALIB
HIGH" will disappear from the optional LCD display.
i
S1
S2
S2
S1
S1
S1
S2
D1
red
D1
red
D2
D2
“CALIB HIGH”
“CALIB LOW”
Hardware

16
7.5 Resetting the customer calibration to the
factory calibration on the circuit board:
1. RH + T RESET: BUTTON S1 and S2: In neutral mode
pressing both buttons simultaneously for 10 seconds customer
calibration settings are reset to factory calibration.
A short flash of the LED "D1" indicates the reset.
or
2. RH RESET: BUTTON S2: Pressing the button for 5
seconds starts the procedure for the calibration mode RH.
Pressing both buttons simultanously for 10 seconds customer
calibration settings are reset to factory calibration.
A short flash of the LED "D1" indicates the reset.
or
3. Temp. RESET: BUTTON S1: Pressing the button for 5
seconds starts the procedure for the calibration mode T.
Pressing both buttons simultanously for 10 seconds customer
calibration settings are reset to factory calibration.
A short flash of the LED "D2" indicates the reset.
S1 S2
S2
S1
D1
S1
S2
D1
D2
green
D2
D1
red
S1 S2
D2
Hardware

17
Under several circumstances, the capacitive humidity sensor element can get damged.
To avoid the costly return of the entire transmitter to the manufacturer, easy
replacement of the sensor without re-adjustment is possible.
Comments:
•This will invalidate the factory calibration.
•The sensor elements should be touched by the lead wires only. (use tweezers)
Sensor replacement procedure:
1) Switch off supply voltage.
2) Unscrew the filter cap.
3) Pull out the humidity sensor element with a tweezer.
4) Put in the new humidity sensor - the active side (side with the sensor pads) has to
face the inside. (see diagram)
5) Screw the filter cap on again. (in case of pollution replace it by a new filter cap)
6) Establish connection to PC. (RS232)
7) Switch on the supply voltage.
8) Start configuration software on PC.
9)
For further instructions, see Configuration software, chapter 5.3 "Sensor/Probe replacement"
i
active side
Transmitters of the EE29/31-xDx and xEx series are available with an optional
remote sensor probe that can be plugged into the middle section of the housing. If
the sensor probe gets damaged (damage to the cable, mechanical destruction of
the sensor probe) it is possible to replace the probe without re-adjustment.
Note:
− This will invalidate the factory calibration.
Sensor probe replacement procedure:
1) Switch off supply voltage.
2) Remove damaged sensor probe.
3) Plug replacement probe onto middle section of the housing.
4) Establish connection to PC (RS232).
5) Switch on power supply voltage.
6) Start configuration software on PC.
7)
For further instructions, see Configuration software, chapter 5.3 "Sensor/Probe replacement"
solder
points
Hardware
8. MAINTENANCE
8.1 Sensor replacement
8.2 Sensor probe replacement / optional

18
Self diagnosis via LEDs on the circuit board:
•Green LED
flashing ⇒Supply voltage applied / Microprocessor is active
•Red LED
constantly lit ⇒Humidity sensor element damaged
flashing ⇒Humidity sensor element accruing moist (condensation!)
Self diagnosis via display (where available):
Error 1 ⇒ Humidity sensor element damaged
Error 2 ⇒Humidity sensor element moistened (condensation!)
Error 3 ⇒Temperature sensor element damaged
Error 4 ⇒Temperature input short circuit
Definitions:
•Error
possible cause
⇒ Measures / Help
• Display shows incorrect values
Error during re-adjustment of the transmitter
⇒ Reset to factory calibration and repeat the calibration routine
Filter soiled
⇒ Replace filter
Sensor defective
⇒ Replace sensor
Output configured incorrectly
⇒ PC - Software
•Long response time
Filter soiled
⇒ Replace filter
Incorrect filter type
⇒ Filter type should match the application
• Transmitter failure
no supply voltage
⇒ Check wiring and supply voltage
⇒ only green LED is illuminated continuously ⇒ Electronics defect ⇒ contact the manufacturer
•High humidity values - red LED blinks
Dew (condensation) in sensor probe head
⇒ Dry probe head and check the sensor probe mounting type
Incorrect filter type (e.g. storage of humidity after stainless steel sintered filter condensation)
⇒ Filter type should match the application
8.3 Self diagnosis and error messages:
Hardware
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19
9. NETWORK
Up to 32 EE31 transmitters (additional "N" in order code) can be connected in a RS-485
bus system to a single PC interface.
Using the software which is included in the scope of supply the transmitters can be
configurated individually or in the entire network group.
Network configuration:
Technical Data:
- Max. network size: 32 transmitters / COM-PORT of PC
- Max. network expansion: 1200m total length
- Transmission rate: 9600 Baud
Mounting notes:
Data cables: - external diameter < 4mm
- 2-core twisted pair
- Typ. 50 pF/m, impedance 100 Ohm, non-shielded
- In accordance with the RS485 standard, cables in category 5
(UTP), specified according to EIA/TIA/ANSI 568, meet these
requirements.
For high noise emissions, especially for large cable lengths, the use of shielded cables is
recommended. (Shield laid at GND Ser)
2 analogue
outputs
converter
RS232 (COM) interface
A+
Ra
B-
A+ Ra B-
1) Note: to enable optimum expansion, both ends of the network must be terminated with a terminating
resistorwith Ra 100 Ohm.
2) Note: to adapt the RS232 interface on the PC to the RS485 network protocol, a signal converter
is required.
1)
1)
2)
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Hardware

20
Plug connecors: To achieve a more flexible network configuration, the
transmitters should be equipped with plug connectors.
(Option C08)
For the network configuration, the following plug connectors
are also necessary:
- Y splitter: Siemens 6ES7 194-1KA01-0XA0
- Plug: Lumberg RSC 5/7
RS232/485 Converter: To adapt the RS232 interface on the PC to the RS485
network protocol, a signal converter (see schematic,
page 19, point 2) is required.
Plug
Option C08
Lumberg
RSC 5/7
Y splitter
Lumberg
RKC
50/11
Power supply +
Analog output
RS485
Network
Hardware