E+E Elektronik EE310 User manual

BA_EE310_e // V1.5 // Technical data subject to change // 194474
Operation manual
EE310
Humidity/Temperature
Transmitter

E+E Elektronik® Ges.m.b.H. provides no warranty of any kind for this publication and accepts no liability for
improper use of the products described.
This publication might contain technical inaccuracies or typographical errors. The content is revised regularly and is
not subject to change management. The manufacturer reserves the right to modify or change its described products
at any time.
© Copyright E+E Elektronik® Ges.m.b.H.
All rights reserved.
USA
FCC notice
This equipment has been tested and found to comply with the limits for a Class 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.
CANADA
ICES-003 Issue 5:
CAN ICES-3 A / NMB-3 A

3
Operating instructions for EE310 Humidity / Temperature Transmitter
CONTENT
1 General .................................................................................................................................................4
1.1 Explanation of symbols .................................................................................................................................4
1.2 Safety instructions .........................................................................................................................................4
1.3 Environmental aspects ..................................................................................................................................4
2 Product Description ............................................................................................................................5
2.1 Product design ..............................................................................................................................................5
2.2 Models...........................................................................................................................................................6
3 Installation ...........................................................................................................................................7
3.1 Mechanical installation ..................................................................................................................................7
3.1.1 Standard mounting of the enclosure ....................................................................................................................7
3.1.2 DIN rail mounting of the enclosure.......................................................................................................................7
3.2 Electrical connection .....................................................................................................................................8
3.2.1 Standard connection ............................................................................................................................................8
3.2.2 Plug options ........................................................................................................................................................8
3.3 Probe mounting ...........................................................................................................................................10
3.3.1 T1: Wall mounting ..............................................................................................................................................10
3.3.2 T2: Duct mounting..............................................................................................................................................10
3.3.3 T5: Remote probe up to 180 °C (356 °F)............................................................................................................................. 11
3.3.4 T10: Pressure tight probe up to 20 bar (300 psi)................................................................................................................ 12
3.4 Installation of the probe with ball valve set..................................................................................................13
4 Optional modules ..............................................................................................................................15
4.1 Alarm module (option AM2).........................................................................................................................15
4.2 Power supply module (option AM3).............................................................................................................17
4.3 Modbus RTU module (option J3) ................................................................................................................17
4.4 Pluggable probe (option PC4) .....................................................................................................................19
5 Operation ...........................................................................................................................................20
5.1 Congurationinterface ................................................................................................................................20
5.2 3.5” TFT Colour Display (optional) ..............................................................................................................20
5.3 Chart + Data logger ....................................................................................................................................21
5.4 CongurationMenu ...................................................................................................................................23
5.5 Status information ......................................................................................................................................23
5.6 Buzzer ON / OFF .......................................................................................................................................23
5.7 Error indication ...........................................................................................................................................23
6 Maintenance.......................................................................................................................................24
6.1 Self diagnosis and error messages .............................................................................................................24
6.1.1 Error messages via display................................................................................................................................24
6.1.2 Error messages via LEDs ..................................................................................................................................24
6.1.3 Solving typical problems ....................................................................................................................................25
6.2 Cleaningthesensinghead/lterreplacement ...........................................................................................25
6.3 Sensor replacement ....................................................................................................................................25
6.4 RH / T adjustment and calibration ...............................................................................................................26
7 Scope of supply.................................................................................................................................27
8 Replacement parts / Accessories ....................................................................................................27
9 Technical data....................................................................................................................................28
10 Appendix ...........................................................................................................................................29
10.1 Appendix A ..................................................................................................................................................29

4
Operating instructions for EE310 Humidity / Temperature Transmitter
1 General
This manual is included in the scope of supply and serves to ensure proper handling and
optimum performance of the instrument. The manual shall be read before putting the device into
operation. The manual is relevant for all staff involved in transport, setup, operation, maintenance
and repair. The manual may not be used for the purpose of competition and shall also not be
forwarded to third parties. Copies for personal use are allowed. All contents, technical data and
illustrations contained in the manual are based on information available at the time of publication.
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
Excessive mechanical stress and inappropriate usage may lead to failures and shall be avoided.
The sensors inside the sensing head (the tip of the sensing probe) are is an Electro Static
Discharge (ESD) sensitive components and shall be handled as such.
Donottouchthesensingelementsinsidethesensinghead.Thereplacementoftheltercap
shall be done with utmost care not to touch the sensors.
Installation, electrical connection, maintenance and commissioning shall be performed by
qualiedstaffonly.
The devices are designed for the operation with class III supply (EU) and class 2 supply (NA).
1.2.2. Alarm module with voltages >50 V (option AM2)
The optional alarm module is isolated from the low-voltage side of EE310 by a special partition;
thismustremainttedatalltimesinthebottompartoftheenclosure.
The EE310 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qualiedstaffonly.
1.2.3. Integrated power supply (option AM3)
The EE310 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qualiedstaffonly.
1.3 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 instructions for EE310 Humidity / Temperature Transmitter
2 Product Description
EE310 is optimised for reliable measurement in demanding industrial applications. In addition to
highly accurate measurement of relative humidity (RH) and temperature (T), the transmitter also
calculates parameters such as dew point, absolute humidity and mixing ratio.
Various models are available including wall, duct and remote probe. The remote probe can be
used up to 180 °C (356 °F) and the pressure tight probe up to 20 bar (290 psi). The design of the rug-
ged polycarbonate enclosure facilitates easy mounting and maintenance. The measured values
are available on two analogue outputs and the Modbus RTU digital interface.
The state of the art TFT colour display shows up to four measurands simultaneously and offers
extensive error diagnostics. The integrated data logging function saves all measured and calcu-
lated values to the internal memory. The data can be displayed as graph directly on the device or
easily downloaded via USB interface.
The E+E proprietary coating protects the sensor elements against corrosive and electrically con-
ductive pollution.
Theoutputscanbefreelyconguredandanadjustmentperformeddirectlyviadisplayorwiththe
freeEE-PCSProductCongurationSoftwareusingtheUSBserviceinterface.
2.1 Product design
1
2
3
4
5
6
7
8
1
4
5
6
7
8
EE310-T5/T10 EE310-T1
Fig. 1 Product design
1Upper enclosure part with electronic / display* and probe cable
23.5” TFT colour display*
35push-buttonsforcongurationmenu
4Bottom part with electrical connection, alarm* + supply module* and mounting holes
5Micro USB service interface
6Standard cable glands / connectors*
7Additional cable gland / connector*
8Probe / cable gland / connector*
* optional

6
Operating instructions for EE310 Humidity / Temperature Transmitter
Connection terminal block
RS485
add on chip
Space for
optional modules
Fig. 2 Modular enclosure
2.2 Models
EE310 is available for wall or duct mount as well as with various remote probes. The remote
probes can be employed up to 180 °C (356 °F) and 20 bar (300 psi).
T1: Wall mounting
T2: Duct mounting
T5: Remote probe up to 180 °C (356 °F)
T10: Pressure tight probe up to 20 bar (300 psi)
Fig. 3 EE310 models

7
Operating instructions for EE310 Humidity / Temperature Transmitter
3 Installation
3.1 Mechanical installation
3.1.1 Standard mounting of the enclosure
• Drill the mounting holes according to the mounting template below.
• Mount the bottom part of the enclosure with 4 screws (screw diameter < 4.2 mm (0.2”), not
included in the scope of supply).
54 (2.13“)
104 (4.09“)
71
(2.80“)
5.1
(0.20“)
166 (6.54“)
180 (7.09“)
153 (6.02“)
54 (2.13“) 14 (0.55“)
166 (6.54“)
5.1 (0.20“)7(0.28“)
Fig. 4 Dimensions and mounting template of polycarbonate enclosure in mm (inch)
3.1.2 DIN rail mounting of the enclosure
• Mount the two DIN rail brackets (to be ordered separately, see chapter 8 Replacement parts /
Accessories) onto the back side of the enclosure.
• Snap in the enclosure onto the DIN rail
Fig. 5 DIN rail installation

8
Operating instructions for EE310 Humidity / Temperature Transmitter
3.2 Electrical connection
TheelectricalinstallationoftheEE310shallbeperformedbyqualied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 Ameri-
ca).
3.2.1 Standard connection
V+
GND
GND
OUT 1
OUT 2
GND RS485
RS485 A (=D+)
RS485 B (=D-)
V
mA
8 - 35 V DC
12 - 30 V AC
1
2
3
4
5
6
7
8
Modbus RTU
(galvanically isolated)
Analogue outputs
Supply
V
mA
Fig. 6 Electrical connection
Analogue outputs
Bothanalogueoutputsshallbeconguredtoeithervoltageorcurrent.Measurands,analogue
range and scaling are freely selectable. All settings can be performed via display and push
buttonsorusingtheEE-PCSProductCongurationSoftware.
Error indication
The analogue outputs feature an error indication function according to NAMUR NE43. In the case
of an error the output signal will freeze at 21 mA or 11 V respectively.
Note
By default the error indication is disabled.
When changing one of the analogue outputs from current to voltage and vice versa, the second
output will change automatically as well. The output scaling changes automatically if it is out of
physical range (i.e. 20 mA will be changed to 10 V instead of 20 V).
Check output scale after changing between voltage and current output.
3.2.2 Plug options
Option E4
power supply +
analogue output
12
3
4
5
GND
GND Output
OUT 2
V+ OUT 1
Option E5
Modbus RTU
M16x1.5
Option E6
Modbus RTU power supply +
analogue output
Option E12
Modbus RTU power supply +
analogue output
Option AM3
12
3
4
5
n.c.
GND Output
OUT 2
n.c. OUT 1
12
3
4
5
GND
GND Output
OUT 2
V+ OUT 1
Power supply + analogue output
analogue
output
Modbus RTU
(only with order code J3)
power supply
Analogue output
1
3
neutral wire
(N)
n.c.
phase
(L1)
n.c.
Power supply 100 - 240 V AC
21
4
3
5
RS485 B
(=D-)
GND RS485
(shielded)
RS485 A
(=D+)
n.c.
Modbus RTU
n.c.
21
4
3
5
RS485 B
(=D-)
GND RS485
(shielded)
RS485 A
(=D+)
n.c.
n.c.
21
4
3
5
RS485 B
(=D-)
GND RS485
(shielded)
RS485 A
(=D+)
n.c.
Modbus RTU
n.c.

9
Operating instructions for EE310 Humidity / Temperature Transmitter
Option E4
power supply +
analogue output
12
3
4
5
GND
GND Output
OUT 2
V+ OUT 1
Option E5
Modbus RTU
M16x1.5
Option E6
Modbus RTU power supply +
analogue output
Option E12
Modbus RTU power supply +
analogue output
Option AM3
12
3
4
5
n.c.
GND Output
OUT 2
n.c. OUT 1
12
3
4
5
GND
GND Output
OUT 2
V+ OUT 1
Power supply + analogue output
analogue
output
Modbus RTU
(only with order code J3)
power supply
Analogue output
1
3
neutral wire
(N)
n.c.
phase
(L1)
n.c.
Power supply 100 - 240 V AC
21
4
3
5
RS485 B
(=D-)
GND RS485
(shielded)
RS485 A
(=D+)
n.c.
Modbus RTU
n.c.
21
4
3
5
RS485 B
(=D-)
GND RS485
(shielded)
RS485 A
(=D+)
n.c.
n.c.
21
4
3
5
RS485 B
(=D-)
GND RS485
(shielded)
RS485 A
(=D+)
n.c.
Modbus RTU
n.c.
Fig. 7 Plug options for EE310 (front connector view)
External diameter of the supply cable for option AM3 and power supply + analogue ouput (E4 /
E6 / E12): 10-12 mm (0.39-0.47”).
Maximum wire cross section for connecting cable: 1.5 mm² (AWG 16) .
The AM3 option includes a 1.25 A fuse on the 100-240 V side. This fuse may not be replaced by
the user, but only by the E+E Service. National regulations for installation shall be observed.
External diameter of the cable for Modbus RTU female plug: 4 - 6 mm (0.16 - 0.24”).
Maximal wire cross section for connecting cable: 0.5 mm² (AWG 21).

10
Operating instructions for EE310 Humidity / Temperature Transmitter
3.3 Probe mounting
3.3.1 T1: Wall mounting
EE310-T1 are wall mount transmitters.
For mounting template of polycarbonate enclosure see chapter 3.1 Mechanical installation /
Fig. 4 Dimensions and mounting template of polycarbonate enclosure in mm (inch).
T working range: -40...+60 °C (-40...140 °F)
-20...+50 °C (-4...122 °F) (with display)
The transmitter shall be mounted with the probe pointing downwards!
166
(6.54“)
54
(2.13“)
Fig. 8 Mounting of model EE310-T1
3.3.2 T2: Duct mounting
EE310-T2 are duct mount transmitters.
For mounting template of polycarbonate enclosure see chapter 3.1 Mechanical installation /
Fig. 4 Dimensions and mounting template of polycarbonate enclosure in mm (inch).
T working range probe: -40...+80 °C (-40...176 °F)
electronics -40...+60 °C (-40...140 °F)
-20...+50 °C (-4...122 °F) (with display)
The probe shall be horizontal or point downwards.
166
(6.54“)
54
(2.13“)
Fig. 9 Mounting of model EE310-T2

11
Operating instructions for EE310 Humidity / Temperature Transmitter
3.3.3 T5: Remote probe up to 180 °C (356 °F)
EE310-T5 are transmitters with remote probe.
For mounting template of polycarbonate enclosure see chapter 3.1 Mechanical installation /
Fig. 4 Dimensions and mounting template of polycarbonate enclosure in mm (inch).
T working range probe: -40...+180 °C (-40...176 °F)
electronics: -40...+60 °C (-40...140 °F)
-20...+50 °C (-4...122 °F) (with display)
Mounting the remote sensing probe of EE310-T5
Formountingtheprobeintoaseparationwallusethestainlesssteelmountingange(see
chapter 8 Replacement parts / Accessories). The immersion depth is adjustable. The probe shall
be horizontal.
In case of mounting into a separation wall, it is of paramount importance for accurate measure-
ment to avoid T gradients along the probe. In case of large T difference between the two sides
of the separation wall, it is highly recommended to insert the probe completely (up to the cable
outlet) into the wall. Should this not be possible, place a thermal isolation layer on the part of the
probe outside the wall (on the cable side).
Thestainlesssteelmountingangeisnotappropriateforpressuretightmounting.Forpressure
tight requirements use EE310-T10.
For probe hanging onto its cable from the ceiling in applications where condensation is likely to
happen it is important to avoid condense water getting from the cable to the probe and into the
sensing head. For this use the drip water protection.
Ø 12
0.5“
46
1.8“
34
1.3“
85
3.3“
drip water
protection
hanging probe
probe into separation wall
13
0.5“
bow for draining
condense water
temperature gradient along
the probe shall be avoided
sealing
Fig. 10 Mounting the remote probe of EE310-T5

12
Operating instructions for EE310 Humidity / Temperature Transmitter
3.3.4 T10: Pressure tight probe up to 20 bar (300 psi)
EE310-T10 are transmitters with pressure tight remote probe.
Process pressure range 0.01...20 bar (0.15...300 psi).
For mounting template of polycarbonate enclosure see chapter 3.1 Mechanical installation /
Fig. 4 Dimensions and mounting template of polycarbonate enclosure in mm (inch).
T working range probe: -40...+180 °C (-40...356 °F)
electronics: -40...+60 °C (-40...140 °F)
-20...+50 °C (-4...122 °F) (with display)
The probe shall be mounted horizontally or vertically pointing downwards.
For accurate measurement it is of paramount importance to avoid T gradients along the probe. In
case of large T difference between the front and the back of the probe, it is highly recommended
to insert the probe completely into the process. Should this not be possible, place a thermal
isolation layer on the part of the probe outside the process (on the cable side).
code „cable length“1)
200 (7.87“)
adjustable
min. 23 (1“) / max. 164 (6.5“)
∅12
(0.47“)
L2) 15 (0.60“)
1/2“ ISO or
1/2“ NPT
∅13 (0.51”)
1)Refertoorderingguide  2)L=lterlength;refertodatasheet„Accessories“
Fig. 11 EE310-T10 probe
General safety instructions for installation
Theinstallation,commissioningandoperationoftheEE310-T10maybeperformedbyqualied
staff only. Special attention shall be paid to the correct installation of the probe into the process.
In case of inappropriate installation there is the risk for the probe to be suddenly expulsed due to
the pressure in the process.
Bending over the sensing probe should be avoided under any circumstances!
Make sure that the surface of the probe is not damaged during installation. A damaged probe
surface may lead to damaged seals and consequently to leakage and pressure loss.
Installation of the probe directly in the process (see Fig. 12 Installation of the EE310-T10
probe directly into the process)
For direct probe installation into a duct stop valves shall be provided on both sides of the probe
insert. This allows the sensor probe to be easily removed for maintenance and calibration.
For direct installation into a pressure chamber make sure that the pressure in the chamber
and the ambient pressure are equal before removing the probe. The temperature during probe
installation may deviate by max. ±40 °C (±72 °F) from the regular temperature during normal
operation.
Replace the metal sealing ring (see Fig. 12 Installation of the EE310-T10 probe directly into the
process) by a new one every time before re-installing the probe.
Probe installation steps
• Close both valves.
• Place the sensor probe into the probe insert and adjust the immersion depth.
• Tighten the lock nut with a torque of 30 Nm.
• Open the valves.

13
Operating instructions for EE310 Humidity / Temperature Transmitter
Observe strictly the tightening torque.
A torque lower than 30 Nm results in a smaller retention force of the clamping sleeve. This leads
the risk of sudden expulsion of the sensing probe due to the pressure. A torque higher than
30 Nm may lead to permanent deformation of the clamping sleeve and the sensing probe. This
wouldmaketheremovalandre-installationoftheprobedifcultorevenimpossible.
fixed installation (pressure tight up
to 20 bar (300 psi))
stop valve stop valve
1/2” ISO or 1/2“ NPT
inside diameter
≥ 13 mm (0.55”)
metal sealing ring
Fig. 12 Installation of the EE310-T10 probe directly into the process
3.4 Installation of the probe with ball valve set
The ball valve set allows for installation and removal of the probe without process interruption.
Formountingintoaduct,theballvalveshallbeinstalledperpendiculartotheowdirection.
The two metal sealing rings (see Fig. 13 Installation of the probe by utilizing the ball valve set)
shall be replaced every time prior to re-installing the probe.
The temperature during probe installation may deviate by max. ±40 °C (±72 °F) from the regular
temperature during normal operation.
Installation of the probe (see Fig. 13 Installation of the probe by utilizing the ball valve set):
• Install the probe into the ball valve while the ball valve is closed.
• Open the ball valve.
• Slide the probe through the ball valve to the desired immersion depth. Depending on the
process pressure additional tools may be necessary for pushing the probe into the process.
Make sure not to damage the probe and the cable.
• Tighten the lock nut with a torque of 30 Nm.
Observe strictly the tightening torque. A torque lower than 30 Nm results a smaller retention force
of the clamping sleeve. This leads the risk of sudden expulsion of the sensing probe due to the
pressure. A torque higher than 30 Nm may lead to permanent deformation of the clamping sleeve
andthesensingprobe.Thiswouldmaketheremovalandre-installationoftheprobedifcultor
even impossible.

14
Operating instructions for EE310 Humidity / Temperature Transmitter
metal sealing ring
(as a standard
contained with
the probe)
metal sealing ring
(as a standard contained
with the ball valve set)
1/2” ball valve
extension
(is not available for an
NPT thread)
inside diameter
≥ 13.1 mm (0.55”)
clamping
sleeve
lock nut
adapter
body
sealing
element 2
sealing
element 1
Fig. 13 Installation of the probe by utilizing the ball valve set
Removing the probe
• Holdrmlytheprobetoavoiditbeingsuddenlyexpulsedwhenreleasingthelocknot.Maysure
nut to bend and damage the probe cable.
• Loosen slowly the lock nut with a spanner (spanner width 24) only till the probe is pushed out
by the overpressure in the process. Do not completely loosen the lock nut, but only as much as
necessary for the probe to slide.
• After the probe has been pushed out of the process up to the stop, close the ball valve.
• Remove the probe from the ball valve.
Observe the correct positioning of the sealing element 1 before reinstalling the probe.

15
Operating instructions for EE310 Humidity / Temperature Transmitter
4 Optional modules
4.1 Alarm module (option AM2)
Themoduleofferstwofreelycongurablerelayoutputsforalarmorcontrolpurposes.
Max. switch load: 250 V AC / 6 A 28 V DC / 6 A
Min. switch load: 12 V / 100 mA
No overcurrent and short circuit protection.
Both relays shall be connected to either high or low voltage.
Various operation modes are available including hysteresis, window and error indication.
NO
NC
C
NC 6
NO 4
C5
NC 3
NO 1
C2
NO
NC
C
Standard Inverted
REL 1
REL 2
RELAY 2RELAY 1
Fig. 14 Alarm module (option AM2)
When error indication mode is selected, various errors will trigger the alarm output. An alarm
output in this operation mode is used for error indication only.
Switching point
% / RH
Hysteresis
t
closed
open
closed
open
Terminal 2-3 / 5-6
Terminal 1-2 / 4-5
Fig. 15 Example hysteresis mode
Terminal 2-3 / 5-6
Terminal 1-2 / 4-5
Switching point 2
Hysteresis 2
% / RH
Hysteresis 1
Switching point 1
t
closed
open
closed
open
Fig. 16 Example window mode

16
Operating instructions for EE310 Humidity / Temperature Transmitter
Switching point
% / RH
Standard
Inverted
Power
Hysteresis
Terminal 2-3
Terminal 5-6
t
closed
open
closed
open
ON
OFF
Fig. 17 Example of alarm in case of power supply failure using inverted alarm outputs.
The measurands at the outputs as well as switching points, hysteresis and the default state
(standard/inverted)canbesetviaEE-PCSProductCongurationSoftwareorusingthedisplay
and the push buttons.
Menu
Alarm number
Alarm output*
Alarm 2
Alarm 1
Mode
Switch hysteresis
Measurand
Switching point
Switching point
Hysteresis
Standard
Inverted
Normal state
Switch window
Measurand
Switching point
low
Switching point
Hysteresis
Switching point
high
Switching point
Hysteresis
Standard
Inverted
Normal state
Error indication
Standard
Inverted
Normal state
OFF
Temperature [°C]
Temperature [°F]
Temperature [K]
Rel. humidity [%]
Vap. p. pressure [mbar]
Vap. p. pressure [psi]
Dew point [°C]
Dew point [°F]
Wet bulb temp. [°C]
Wet bulb temp. [°F]
Abs. humidity [g/m³]
Abs. humidity [gr/ft³]
Mixing ratio [g/kg]
Mixing ratio [gr/lb]
Enthalpy [kJ/kg]
Enthalpy [ft lbf/lb]
Enthalpy [BTU/lb]
Frost point [°C]
Frost point [°F]
Water activity [aw]
Saturation [%]
Water content [ppm]
Wet bulb temp. [K]
Dew point [K]
Frost point [K]
Volume concentr. [ppm]
* Menu only available with connected alarm module during EE310 start-up

17
Operating instructions for EE310 Humidity / Temperature Transmitter
4.2 Power supply module (option AM3)
This module allows the EE310 to be powered with 100...240 V AC (50/60 Hz), 2 V A.
Fig. 18 Power supply module (option AM3)
Plug connections for option AM3 see chapter 3.2.2 Plug options.
The AM3 option includes a 1.25 A fuse on the 100-240 V side. This fuse may not be replaced by
the user, but only by the E+E Service. National regulations for installation shall be observed.
4.3 Modbus RTU module (option J3)
Instructions for Modbus-Protocol-Setup please see Application Note AN0103
(www.epluse.com/EE310).
Up to 32 EE310 transmitters with Modbus RTU interface can be connected in a RS-485 bus
system.
Slave n
(max. 32) Slave 2
Slave 1
Slave 3
Modbus RTU Master
Fig. 19 Two wire RS485 network
Both ends of the network shall be terminated with a resistor Ra=120 Ohm.
ThesetupoftheModbusRTUcommunicationcanbeperformedviaEE-PCSProductCong-
uration Software or via display and push buttons.

18
Operating instructions for EE310 Humidity / Temperature Transmitter
Parity
None
Odd
Even
Baudrate value
value
value
Stop bits
Address
Menu
Modbus
settings*
* Menu only available with connected Modbus RTU module during EE310 start-up.
Data transmission
Factory settings Selectable values
Baud rate 9600 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 76800
Data bits 8 8
Parity EVEN None, odd, even
Stop bits 11 or 2
Slave address 231 1...247
The recommended setting for multiple devices in a Modbus RTU network is 9600 8 Even 1.
Modbus Map
Register
[DEC]
Protocol
address [HEX]
Measured value Unit Type
Read registers: function code 0x03 / 0x04
31021 3FC Relative humidity %32-bit float
31003 3EA Temperature °C 32-bit float
31005 3EC Temperature °F 32-bit float
31105 450 Dew point temperature °C 32-bit float
31107 452 Dew point temperature °F 32-bit float
31131 46A Frost point / Dew point temperature °C 32-bit float
31133 46C Frost point / Dew point temperature °F 32-bit float
31113 458 Absolute humidity g/m332-bit float
31115 45A Absolute humidity gr/ft332-bit float
31121 460 Mixing ratio g/kg 32-bit float
31123 462 Mixing ratio gr/lb 32-bit float
31109 454 Wet bulb temperature °C 32-bit float
31111 456 Wet bulb temperature °F 32-bit float
31125 464 Specific enthalpy kJ/kg 32-bit float
31129 468 Specific enthalpy BTU/lb 32-bit float
31127 466 Specific enthalpy ft lbf/lb 32-bit float
31101 44C Water vapour partial pressure mbar 32-bit float
31103 44E Water vapour partial pressure psi 32-bit float
31151 47E Volume concentration ppm 32-bit float
35001 1388 Air pressure mbar 32-bit float
Write registers: function code 0x06 for 16-bit and 0x10 (decimal: 16) for 32-bit
0001 0 Slave-ID / 16-bit integer
5001 1388 Air pressure mbar 32-bit float

19
Operating instructions for EE310 Humidity / Temperature Transmitter
4.4 Pluggable probe (option PC4)
EE310-T5 and EE310-T10 transmitters are optionally available with pluggable sensing probe,
which is attached to the EE310 enclosure by a push-pull plug.
If the probe or the probe cable gets damaged it is possible to easily replace the probe without
humidity and temperature adjustment. The replacement probe (see order information below) is
supplied with a set of 7 individual parameters.
1.
2.
Fig. 20 Pluggable probe
Probe replacement procedure
• Plug off the damaged probe
• Plug on the new probe
• Updatethe7parameterswithEE-PCSProductCongurationSoftwareorviadisplayandpush
buttons.
Working pressure
Probe replacement
Parameters
Humidity
coefcient
Resistance R0
Capacity C76
Capacity gain
Capacity offset
Temperature
coefcientTK
Resistance Offset
Menu
Device
settings
Note: When replacing the probe, the factory calibration loses its validity.
A calibration to verify accuracy is recommended but not mandatory.
Order information for replacement probe
PE310
Type T5 T10
Filter stainless steel sintered F4 F4
PTFE F5
H2O2F12
stainless steel - metal grid (up to 180 °C / 356 °F) F9 F9
Cable length
(incl. probe length)
2 m (6.6 ft) K2 K2
5 m (16.4 ft) K5 K5
10 m (32.8 ft) K10 K10
Probe length
65 mm (2.55“) L65
200 mm (7.87“) L200 L200
400 mm (15.75“) L400 L400
Process connection 1/2“ ISO thread PA23
1/2“ NPT thread PA25
Optional features E+E sensor coating C1 C1
Tab. 1 Ordering code for replacement probe

20
Operating instructions for EE310 Humidity / Temperature Transmitter
5 Operation
5.1 Conguration interface
ThetransmittercanbeusedforcongurationorcalibrationviathemicroUSBconguration
interface. An additional supply is not necessary.
AftertheUSBcableisconnected,thetransmitterisinitialisedandthecongurationisloaded.
ThegreenstatusLEDashesandindicatesproperoperationoftheelectronics.
Blind cover USB cable
Fig. 21 Remove the blind cover and plug in the USB cable
PCB
LED 1 LED 2
LED 4
LED 3
Current output
Error LED
error LED on = error category 1
error LED flashes = error category 2
Voltage output
power supply/
main board
Fig. 22 Status LEDs are located at the USB port
5.2 3.5” TFT Colour Display (optional)
TheEE310displayincludesadataloggerandpushbuttonsforfullcongurationofthedevice.
Uponstart-upofanEE310withdisplay,thedataloggerandthecongurationmenuwillbe
initialisedduringtherst5seconds.
1
2
3
4
5
Chart + data logger
Configuration menu
Status information
Buzzer ON / OFF
Error indication / information
Fig. 23 Display with push buttons