Evikon PluraSens E2418DP Manuale utente

PluraSens®

Low differential pressure transmitter

E2418DP

User Manual

E2418DP Rev 27.05.2021
Table of contents
Speciﬁcations 3
Product description 4
Safety requirements 4
Operating conditions 5
Installation and connections 5
Delivery set 8
Order code for E2418DP options 8
Conﬁguring 8
Return to default settings 9
Emergency mode 9
Modbus RTU Communication 10
RS485 Communication parameters 11
Factory settings 11
Warranty 12
Manufacturer contacts 12
2

E2418DP Rev 27.05.2021

Speciﬁcations

Version

E2418DP-1K

E2418DP-10K

Detection range options

-1...+1 kPa

-10...+10 kPa

Resolution

1 Pa (0,01 mbar)

10 Pa (0,1 mbar)

Max. overpressure

10 kPa

80 kPa

Accuracy

±20 Pa

±200 Pa

Zero point drift

<5 Pa/year

<50 Pa/year

Temperature effect

Compensated within -5...+65 °C range

Analog outputs

2 × 4-20 mA or 0-10 V, user settable

Standard output scales

E2418DP-1K

E2418DP-10K

0-250 Pa,

0-500 Pa,

0-1,0 kPa

-250 - +250 Pa

-500 - +500 Pa

-1,0 - +1,0 kPa

0-2,5 kPa,

0-5 kPa,

0-10 kPa

-2,5 - +2,5 kPa

-5 - +5 kPa

-10 - +10 kPa

Digital interface

RS485, Modbus RTU protocol

Load resistance

RL < (Us - 3 V) / 22 mA for 4-20 mA

RL > 100 kOhm for 0-10 V mode

Operating conditions

-20...+70 °C, <99 %RH non+condensing,

Without dust, aggressive gases, mist or oil;

Residential or business spaces

Power supply options

11...30 VDC or 24 VAC

Power consumption

< 1 W

Electromagnetic

compatibility

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)

Enclosure

Light-grey ABS 82 × 80 × 55 mm, IP65

E2418DP Rev 27.05.2021

Product description

Differential pressure transmitter E2418DP is a member of the new PluraSens® family of

multifunctional measurement instruments. The transmitter is intended for measurement of

differential pressure of clean air or nonﬂammable gases.

The main HVAC applications for the transmitter are monitoring of fans, ﬁlters, valves,

dampers, measurement of airﬂow in ventilation ducts and pressure in cleanrooms. E2418

is based on a fully calibrated, linearised and temperature compensated digital differential

pressure sensor with high repeatability, stability and long lifetime.

The instrument provides two independent analog outputs OUT1 and OUT2, user selectable

to 4-20 mA or 0-10 V, proportional either to differential pressure or internal temperature.

RS485 Modbus RTU digital communication interface allows easy conﬁguration of the

transmitter and its integration into various automation systems through the Fieldbus

network. If the symbol is marked on the equipment, consult the documentation for further

information.

Safety requirements

Misuse will impair the protection of the product. 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.

Removal of the PCB from the enclosure voids the warranty. Do not touch the electronic

components directly, as they are sensitive to static electricity.

Connection diagrams can be found in the installation and connections section. The device

might not perform correctly or be damaged if the wrong power supply is connected.

External circuits connected to the equipment should have suﬃcient insulation rating

according to the environmental conditions and equipment power.

A disconnecting device that is marked as such and easily accessible should be included in

the installation of this product.

E2418DP Rev 27.05.2021

Operating conditions

The device should be used in explosion-safe (indoor areas, without aggressive

gases in the atmosphere. Allowed conditions are:

●temperature in the range of -20...+70 °C

●relative humidity in the range of 0...99% without condensation

●atmospheric pressure in the range of 84...106,7 kPa.

Installation and connections

Before proceeding with the installation it is mandatory to read carefully the Safety

requirements section and make sure to comply with all listed instructions.

The pressure transmitter should be mounted on a wall.

E2418DP Rev 27.05.2021

To install the device, proceed as follows:

1. Unscrew four lid screws and detach the lid from the transmitter.

2. Attach the device to a wall with screws passing through mounting holes (for dimensions

see the antecedent drawing). This step may be done after step 3, consider your

convenience.

3. Use M16 cable gland to let in cables of the power supply and of the external devices.

Attach the power cable to the device without turning it on. Using the connection diagram

below, connect the analog outputs and digital interface terminals to the relevant devices

according to your tasks.

Version without PSU and relays Version with PSU and without 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)

E2418DP Rev 27.05.2021

The screwless quick connect spring terminals on the E2407 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 the RS485 interface should not exceed 1200 m.

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.

NOTE! Power restart is required after changing the position of the jumpers.

4. Turn on the power. The operating status is indicated by the LED on the PCB of the

device. The LED response to different processes is presented in the following table:

Mode

LED mode

During calibration mode or sensor heating

period (if activated)

0.5 Hz (50% on, 50% off)

During the Modbus communication cycle

Short on-off pulses

Normal operating/measurement

Continuously on or off

5. Make sure that the transmitter is properly mounted, the external devices connected,

power on and control LED is constantly lit. Place the lid back and ﬁx it with the screws. To

connect the device with measurement point use tubes of appropriate diameter (4 or 6 mm)

and length.

NOTE! The connecting tubes should not be squeezed or folded.

E2418DP Rev 27.05.2021

Delivery set

●Differential pressure transmitter E2418DP

●Set of mounting accessories (4 screws with plastic dowels)

Order code for E2418DP options

E2418DP options

Order code

Differential pressure transmitter-regulator, -1...1 kPa,

resolution 0,5 Pa

E2418DP-1K

Differential pressure transmitter-regulator, -2...2 kPa,

resolution 1 Pa

E2418DP-2K

Differential pressure transmitter-regulator, -5...5 kPa,

resolution 2,5 Pa

E2418DP-5K

Differential pressure transmitter-regulator, -10...10 kPa,

resolution 5 Pa

E2418DP-10K

Differential pressure transmitter-regulator, -25...25 kPa,

resolution 12,5 Pa

E2418DP-25K

Integrated 90...265 V mains power supply module

E2418DP-230

Conﬁguring

Differential pressure transmitter-regulator E2418DP shares all functionalities of the

PluraSens® multifunctional transmitter platform. The features and options include:

●digital output change rate limiting ﬁlter

●digital integrating (averaging) ﬁlter

●ﬂexible setting of analog output scales for each output

E2418 can be conﬁgured through its RS485 interface by Modbus RTU commands. A

standard conﬁguration kit includes a USB-RS485 converter and a software pack.

Please contact your Seller for more information.

E2418DP Rev 27.05.2021

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

Emergency mode

The current outputs of the detector 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

(low current) or 21,5 mA (high current).

Bites

Functions

Notes

Default

bit[0]=0/1

sensor present/absent

Read-only

bit[1]=0/1

analog outputs activated/deactivated

bit[2]=0/1

in case of sensor absence, turn signalling

off/on (OUT 1)

bit[3]=0/1

In case of sensor absence turn on

signalling with low/high current on OUT 1

if bit [2]=0, this bit is ignored

bit[4]=0/1

in case of sensor absence, turn signalling

off/on (OUT 2)

bit[5]=0/1

In case of sensor absence turn on

signalling with low/high current on OUT 2

if bit [4]=0, this bit is ignored

bit[6]=0/1

Current/voltage output detected on OUT 1

Read-only

User deﬁned

bit[7]=0/1

Current/voltage output detected on OUT 2

Read-only

User deﬁned

bit[8]=0/1

LED deactivated/activated

E2418DP Rev 27.05.2021

Modbus RTU Communication

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

Reg

Description

Supported values

hardware version

0...65535

software version

product serial number

0...65535

RW*

Slave ID [1...247]

0...247

RW*

baud rate

1200, 2400, 4800, 9600, 19200, 38400,

57600

RW**

Response delay, ms

1...255 ms

RW*

Stop bits

1, 2, 3, 4

Last error code

1...255

RW***

Technological: data age in

seconds (read) / restart(write)

0...65535 s (read), 42330(write)

167

RW*

Change rate limit for

pressure data, pressure units

1...32000 pressure units,0=no limit

168

RW*

Integrating ﬁlter time constant

for pressure data, s

1...32000 s, 0=no ﬁlter

201

RW**

Parameter assigned to OUT1

0=none, 1=temperature,

2=pressure, 9=forced Modbus

control, value set in 203

202

RW**

Parameter assigned to OUT2

0=none, 1=temperature,

2=pressure, 9=forced Modbus

control, value set in 204

203

RW**

Forced value for OUT1

0...1000 (0.0%...100.0% of scale)

204

RW**

Forced value for OUT2

0...1000 (0.0%...100.0% of scale)

255

RW**

Sensor control/status

see Emergency mode paragraph

257

Raw pressure data

-32000...+32000 pressure units

258

Measured temperature, °Cx100

signed integer, -4000...+12500

(-40,00...+125,00 °C)

259

Measured pressure

-32000...+32000 pressure units

261

RW**

0% value of analog OUT1

-32000...+32000 pressure units

262

RW**

100% value of analog OUT1

-32000...+32000 pressure units

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