Evikon PluraSens E2218-DM Manuale utente
PluraSens®
Duct mount
Humidity & Temperature Transmitter
E2218-DM
User Manual
E2218-DM Rev 26.06.2023
Table of contents
Specifications 3
Product description 4
Safety requirements 4
Operating conditions 4
Installation and connections 5
Sensor probe handling 8
Delivery set 8
Order code for E2218-DM options 9
Emergency mode 9
Return to default settings 9
Modbus RTU Communication 10
Communication parameters 11
Modbus holding registers 11
Warranty 15
Manufacturer contacts 15
2
E2218-DM Rev 26.06.2023
Specifications
Sensors
Digital combined RH and T sensor
Measurement range
0...100 % RH,
40...+85 °C,
non-condensing
Resolution
0,1 %RH
0,1 °C
Accuracy
±2,5 % RH / ±0,3 °C
±1,8 % RH / ±0,3 °C on request
Self-diagnostics
Full functionality check at start-up
Warm-up time
≤1s
Response time
~15 seconds
Power supply (Us)
12…36 VDC (default)
24 VAC as option
Power consumption
< 1,5 VA
Analog outputs
2 × 4-20 mA / 0-10 V, user settable,
Freely configurable scales
Load resistance
RL< (Us - 2 V) / 22 mA for 4-20 mA
RL> 250 kOhm for 0-10 V mode
Digital interface
RS485, Modbus RTU protocol
no galvanic isolation
Cable connections
Screwless spring loaded terminals
Probe connector
Round industrial M12, IP68
Probe
Grey painted aluminium body Ø16 × L200 mm,
IP54 protection, 0...100% RH, -40...+85°C
Enclosure
Grey ABS, wall mount, protection class IP65
Mounting accessories
25 mm plastic cable gland with time-saving CLICK system
Dimensions
H82 × W80 × D55 mm
Operating environment
Residential, Industrial and office indoor and outdoor places
Operating conditions
-40...+85 °C, 0...100 %RH (non-condensing) in non-aggressive environment
(for main unit)
CE marking
According to 2014/30/EU:
EN 61000-6-3:2020, EN 61326-1:2013(EMC, emissions)
EN 61000-6-1:2019, EN 61000-6-2:2019(EMC, Immunity)
3
E2218-DM Rev 26.06.2023
Product description
Duct mount humidity and temperature transmitter E2218-DM is a member of the new
PluraSens® family of multifunctional measurement instruments. The transmitter is
intended for measurement of relative humidity and temperature in air and non-aggressive
gases with high accuracy and stability. Absolute humidity and dew point values can be
found as well.
The instrument utilises digital fully calibrated and temperature compensated combined
relative humidity and temperature sensors with excellent repeatability and stability. Thanks
to the digital interface the sensor probes are detachable and fully interchangeable. The
range of probes for different applications may be attached to the main unit using standard
water and dustproof M12 connectors.
Two freely configurable 4-20 mA or 0-10 V analog outputs can be used to connect the
transmitter to secondary instruments. Each output can be independently assigned either to
temperature, relative humidity or dew point channel. RS485 interface with
industry-standard Modbus RTU protocol allows direct Fieldbus networking of the
transmitter.
Safety requirements
Always adhere to the safety provisions applicable in the country of use.
Do not perform any maintenance operation with the power on. Do not let water or foreign
objects inside the device.
Operating conditions
The device should be used in explosion-safe (non ATEX -rated) indoor areas, without
aggressive gases in the atmosphere. Allowed conditions are:
– Temperature in the range of -40...+85 °C;
– Relative humidity in the range of 0...100%;
– Non-condensing;
– Atmospheric pressure in the range of 84...106,7 kPa.
4
E2218-DM Rev 26.06.2023
Installation and connections
Assemble the sensor probe and connect it to the device main unit. Make sure that the
connections are tightened properly.
Cut a 25 mm diameter hole in the air duct at the chosen mounting place. Fix the 25 mm
cable gland in the hole. Pass the sensor probe through the gland, adjust it to the
appropriate depth and tighten the gland’s screw.
Unscrew four lid screws and detach the lid from the instrument.
Plug the power cable and connect the analog outputs and/or digital interface terminals to
the relevant devices according to the connection diagram.
5
E2218-DM Rev 26.06.2023
PCB without PSU and relays
Jumpers
J1
OUT1 type (open: 4-20 mA; closed 0-10 V)
J2
OUT2 type (open: 4-20 mA; closed 0-10 V)
X6
Reset Modbus network parameters to default
X4 terminals
OUT1
4-20 mA / 0-10 V output
OUT2
4-20 mA / 0-10 V output
0V
0 V / 24 VAC Neutral (optional)
A
RS485 A / Data +
B
RS485 B / Data -
+U
+24 VDC / 24 VAC Phase (optional)
6
E2218-DM Rev 26.06.2023
Make certain that the cable gland is properly tightened to ensure the conformity to IP65
protection class.
The screwless quick connect spring terminals on the E2218 are suitable for a wide range
of wires with cross-section 0,2...1,5 mm2. The recommended wire stripping length is 8...9
mm. Push the spring loaded terminal lever, insert the wire end into the terminal hole and
release the lever.
Use twisted pair cable, e.g. LiYY TP 2×2×0,5 mm2 or CAT 5, to connect the device to the
RS485 network. Use one pair for A and B wires and the second pair for common 0V and
power +U wires. to connect the transmitter to the Fieldbus network. polarity must be
respected when connecting to an external RS485 network.
Overall length of all connections via RS485 interface should not exceed 1200 m.
Place the lid back and tighten it with the four screws.
Both analog outputs can be independently changed between 4-20 mA and 0-10 V type
using jumpers J1 (OUT1) and J2 (OUT2). By closing pins on a specific jumper the related
output is 0-10 V, with an open jumper the output is 4-20 mA. Power restart is required after
changing the position of the jumpers.
By default the output OUT1 is assigned to relative humidity with default scale 0-100 %RH.
By default the output OUT2 is assigned to temperature with default scale 0-100 °C.
The output assignments and scales can be changed by Modbus commands.
7
E2218-DM Rev 26.06.2023
Sensor probe handling
The sensor probe is equipped with a hydrophobic microporous PTFE filter to protect the
sensor from dust, dirt and water drops. The round filter is snap-fitted and may be replaced
if it gets strongly contaminated.
To replace the PTFE filter, carefully hook the filter near it’s edge with a small flat
screwdriver and pull it off. Place a new filter onto the sensor opening and press it to snap
into the groove.
Note! Never stab or press the filter near its center where the sensor is located, as this may
damage the sensor. Do not remove the filter as it may cause the device to show incorrect
values and/or break the sensor.
The recommended orientation of the sensor probe is vertical with the sensor tip pointing
downwards. This prevents possible accumulation of condensed water on the sensor
protection filter. The horizontal orientation is also suitable. Avoid upward position of the
sensor tip.
After replacing the sensor probe check if the M12 connector is securely tightened to
ensure appropriate electrical contact and protection.
8
E2218-DM Rev 26.06.2023
Delivery set
●Humidity and temperature transmitter E2218-DM
●Cable gland Ø25 mm
Order code for E2218-DM options
E2218-DM options
Order code
Duct mount, with stem Ø16×L200 mm, -40...+85 °C
E2218-DM
High accuracy ±1,8 %RH
E2218-DM-A
Emergency mode
The current outputs of the transmitter may be programmed via Modbus commands
(register 255) to signal if the connection with the sensor is lost. The signal may be set to
3.8 mA or 21.5 mA. See Annex 1 for more information.
Return to default settings
To reset the device’s Slave ID, baud rate and stop bit number to factory settings, proceed as
follows:
1. De-energize the device
2. Connect the X6 jumper
3. Turn on the device
4. De-energize the device
5. Disconnect the X6 jumper
6. Turn on the device
NOTE! Cables should be connected/disconnected from PCB when the power supply is
unplugged. Connecting or Disconnecting Live wires can result in Corrupt Firmware.
9
E2218-DM Rev 26.06.2023
Modbus RTU Communication
Modbus main holding registers (00xxx or 40xxx): 0-based, decimal
Reg
RW
Description
1
R
hardware version
2
R
software version
3
R
product serial number
4
RW
Slave ID [1...247], default 1
5
RW
baud rate, default 9600
6
RW
response delay [1...255] ms, default 10
7
RW
stop bits , parity bit [1,2,3,4], default 1
17
RW
write ‘42330’ to restart
168
RW
integrating time constant [0...32000] s
201
RW
OUT1 parameter, 0:none, 1:T, 2:RH
202
RW
OUT2 parameter, 0:none, 1:T, 2:RH
258
R
temperature, °C×100, signed integer
259
R
humidity, %RH×100, integer
261
RW
OUT1 out 0%, [±1000] °C / %RH
262
RW
OUT1 out 100%, [±1000] °C / %RH
263
RW
OUT2 out 0%, [±1000] °C / %RH
264
RW
OUT2 out 100%, [±1000] °C / %RH
Note! New Slave ID, baud rate and stop bits values apply after restart
Supported Modbus functions: 03 - read multiple registers, 06 - write single register
10
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