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

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)

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.

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.

E2218-DM Rev 26.06.2023

PCB without PSU and relays

Jumpers

OUT1 type (open: 4-20 mA; closed 0-10 V)

OUT2 type (open: 4-20 mA; closed 0-10 V)

Reset Modbus network parameters to default

X4 terminals

OUT1

4-20 mA / 0-10 V output

OUT2

4-20 mA / 0-10 V output

0 V / 24 VAC Neutral (optional)

RS485 A / Data +

RS485 B / Data -

+24 VDC / 24 VAC Phase (optional)

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.

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.

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.

E2218-DM Rev 26.06.2023

Modbus RTU Communication

Modbus main holding registers (00xxx or 40xxx): 0-based, decimal

Reg

Description

hardware version

software version

product serial number

Slave ID [1...247], default 1

baud rate, default 9600

response delay [1...255] ms, default 10

stop bits , parity bit [1,2,3,4], default 1

write ‘42330’ to restart

168

integrating time constant [0...32000] s

201

OUT1 parameter, 0:none, 1:T, 2:RH

202

OUT2 parameter, 0:none, 1:T, 2:RH

258

temperature, °C×100, signed integer

259

humidity, %RH×100, integer

261

OUT1 out 0%, [±1000] °C / %RH

262

OUT1 out 100%, [±1000] °C / %RH

263

OUT2 out 0%, [±1000] °C / %RH

264

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

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