PR electronics 3185 Manuale utente

PERFORMANCE

MADE

SMARTER

Zone 2

ZONE 2 ZONE 2 / DIV 2

Product manual

3185

Loop-powered isolator

No. 3185V103-UK

From serial no.: 221046149

Communication

Display

I.S. Interface

Isolation

Multifunction

Temperature

6 Product Pillars

to meet your every need

With our innovative, patented technologies, we make signal conditioning smarter and simpler. Our portfolio is composed of six

product areas, where we offer a wide range of analog and digital devices covering over a thousand applications in industrial

and factory automation. All our products comply with or surpass the highest industry standards, ensuring reliability in even

the harshest of environments and have a 5-year warranty for greater peace of mind.

Individually outstanding, unrivalled in combination

Our range of temperature transmitters and sensors provides the highest level of signal integrity from the

measurement point to your control system. You can convert industrial process temperature signals to analog, bus or

digital communications using a highly reliable point-to-point solution with a fast response time, automatic self-

calibration, sensor error detection, low drift, and top EMC performance in any environment.

Our unique range of single devices covering multiple applications is easily deployable as your site standard. Having

one variant that applies to a broad range of applications can reduce your installation time and training, and greatly

simplify spare parts management at your facilities. Our devices are designed for long-term signal accuracy, low

power consumption, immunity to electrical noise and simple programming.

We provide inexpensive, easy-to-use, future-ready communication interfaces that can access your PR installed base

of products. All the interfaces are detachable, have a built-in display for readout of process values and diagnostics,

and can be configured via push-buttons. Product specific functionality includes communication via Modbus and

Bluetooth and remote access using our PR Process Supervisor (PPS) application, available for iOS and Android.

Our display range is characterized by its flexibility and stability. The devices meet nearly every demand for display

readout of process signals and have universal input and power supply capabilities. They provide a real-time

measurement of your process value no matter the industry and are engineered to provide a user-friendly and reliable

relay of information, even in demanding environments.

We deliver the safest signals by validating our products against the toughest safety standards. Through our

commitment to innovation, we have made pioneering achievements in developing I.S. interfaces with SIL 2 Full

Assessment that are both efficient and cost-effective. Our comprehensive range of analog and digital intrinsically

safe isolation barriers offers multifunctional inputs and outputs, making PR an easy-to-implement site standard.

Our backplanes further simplify large installations and provide seamless integration to standard DCS systems.

Our compact, fast, high-quality 6 mm isolators are based on microprocessor technology to provide exceptional

performance and EMC-immunity for dedicated applications at a very low total cost of ownership. They can be

stacked both vertically and horizontally with no air gap separation between units required.

3185V103-UK 3

Warnings ............................................................................................... 4

Symbol identiﬁcation .................................................................................... 4

Safety instructions ...................................................................................... 5

Mounting / demounting of system 3000 .................................................................. 6

Installation on DIN rail ................................................................................... 7

Marking................................................................................................. 7

Application ............................................................................................. 8

Technical characteristics ................................................................................. 8

Mounting / installation................................................................................... 8

Connections ............................................................................................ 9

Order ................................................................................................... 10

Technical data .......................................................................................... 10

Installation instructions.................................................................................. 12

UL installation ....................................................................................... 12

IECEx, ATEX and UKEX installation in Zone 2 ........................................................... 12

cFMus installation in Division 2 or Zone 2 .............................................................. 12

Document history ....................................................................................... 13

3185

Loop-powered isolator

Table of contents

4 3185V103-UK

Warnings

To avoid the risk of electric shock and fire, the safety instructions of this product manual must be

observed, and the guidelines followed. The specifications must not be exceeded, and the device must

only be applied as described in the following.

Prior to the commissioning of the device, this product manual must be examined carefully.

Only qualified personnel (technicians) should install this device. If the equipment is used in a manner not

specified by the manufacturer, the protection provided by the equipment may be impaired.

To avoid explosion and serious injury: Modules having mechanical failures must be returned to PR

electronics for repair or replacement.

Repair of the device and replacement of circuit breakers must be done by PR electronics A/S only.

Until the device is fixed, do not connect hazardous voltages to the device.

In applications where hazardous voltage is connected to in-/outputs of the device, sufficient spacing or

isolation from wires, terminals, and enclosure - to surroundings (incl. neighboring devices), must be

ensured to maintain protection against electric shock.

Potential electrostatic charging hazard. To avoid the risk of explosion due to electrostatic charging of the

enclosure, do not handle the units unless the area is known to be safe, or appropriate safety measures

are taken to avoid electrostatic discharge.

Symbol identification

Triangle with an exclamation mark: Warning /demand. Potentially lethal situations. Read the manual

before installation and commissioning of the device in order to avoid incidents that could lead to

personal injury or mechanical damage.

The CE mark proves the compliance of the device with the essential requirements of the EU-directives.

The UKCA mark proves the compliance of the device with the essential requirements of the UK

regulations.

Ex devices have been approved acc. to the ATEX directive for use in connection with installations in

explosive areas. See installation instructions.

GENERAL

CAUTION

HAZARDOUS

VOLTAGE

3185V103-UK 5

Safety instructions

Receipt and unpacking

Unpack the device without damaging it and check whether the device type corresponds to the one ordered. The packing

should always follow the device until this has been permanently mounted.

Environment

Avoid direct sun light, dust, high temperatures, mechanical vibrations and shock, and rain and heavy moisture. If necessary,

heating in excess of the stated limits for ambient temperatures should be avoided by way of ventilation.

The device must be installed in pollution degree 2 or better.

The device is designed to be safe at least under an altitude up to 2000 m.

The device is designed for indoor use.

Mounting

Only technicians who are familiar with the technical terms, warnings, and instructions in the manual and who are able to

follow these should connect the device. Should there be any doubt as to the correct handling of the device, please contact

your local distributor or, alternatively,

PR electronics A/S

www.prelectronics.com

Mounting and connection of the device should comply with national legislation for mounting of electric materials, e.g. wire

cross section, protective fuse, and location.

Descriptions of input / output and supply connections are shown in the block diagram and side label.

The device is provided with field wiring terminals and shall be supplied from a Power Supply having double / reinforced

insulation. A power switch should be easily accessible and close to the device. The power switch shall be marked as the

disconnecting unit for the device.

SYSTEM 3000 must be mounted on a DIN rail according to EN 60715.

Year of manufacture can be taken from the first two digits in the serial number.

Cleaning

When disconnected, the device may be cleaned with a cloth moistened with distilled water.

Liability

To the extent the instructions in this manual are not strictly observed, the customer cannot advance a demand against PR

electronics A/S that would otherwise exist according to the concluded sales agreement.

6 3185V103-UK

Mounting / demounting of system 3000

Mounting on DIN rail (Fig.1) Demounting from DIN rail (Fig.2)

Click the device onto the rail First, remember to demount the connectors with

hazardous voltages.

Detach the device from the rail by moving the bottom

lock down.

3185V103-UK 7

Installation on DIN rail

For marine applications, the devices must be supported by a module stop (PR part number 9404).

Marking

The front cover of the 3000 devices has been designed with an area for affixation of a click-on marker. The area assigned to

the marker measures 5 x 7.5 mm. Markers from Weidmüller’s MultiCard System, type MF 5/7.5, are suitable.

Module stop

8 3185V103-UK

3185

Loop-powered isolator

• 1 or 2 channel input loop-powered isolator

• Signal 1:1 functional range 0...23 mA

• Low input voltage drop and fast response time

• Excellent accuracy and high load stability

• Slimline 6.1 mm housing

Application

• 1:1 input loop powered isolator of current signals in the range 0(4)...20 mA.

• 3185 is an easy mounting DIN rail unit.

• A very competitive choice in terms of both price and technology for galvanic isolation of current signals.

• Provides surge suppression and protects control systems from transients and noise.

• 3185 eliminates ground loops and can be used for measuring floating signals.

• The device can be mounted in Safe area or in Zone 2 and Cl. 1 Div 2. area.

Technical characteristics

• 3185 is powered by the analogue input current signal loop.

• Low input voltage drop, typ 1.35V + Vout.

• Excellent conversion accuracy, better than 0.1% in the range 0…20.5 mA.

• Functional range is 0...23 mA which means that 3185 is NAMUR NE43 Compliant.

• Inputs and outputs are floating and galvanically separated.

• The output is voltage limited to 17.5 VDC.

• High galvanic isolation of 2.5 kVAC.

• Fast response time < 5 ms.

• Excellent signal/noise ratio > 60 dB.

Mounting / installation

• DIN rail mounting with up to 330 channels per metre.

• Extended operating temperature range from -25...+70°C.

0...20 mA

3185V103-UK 9

Connections

Rload

Input

ch. 1

Output

ch. 1

Input

ch. 2

Output

ch. 2

Safe Area or

Zone 2 & Cl. 1, Div. 2, gr. A-D

10 3185V103-UK

Order

Type Unit channels

3185A Single

Double

: 1

: 2

Example: 3185A2

Accessories

9404 = Module stop for rail

Technical data

Environmental conditions:

Operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25°C to +70°C

Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C

Calibration temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20...28°C

Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)

Protection degree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP20

Installation in pollution degree 2 & overvoltage category II.

Mechanical specifications:

Dimensions (HxWxD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 x 6.1 x 115 mm

Weight approx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 g

DIN rail type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIN EN 60715 - 35 mm

Wire size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.13...2.5 mm2/ AWG 26...12 stranded wire

Screw terminal torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 Nm

Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEC 60068-2-6

2...25 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1,6 mm

25...100 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±4 g

Common electrical specifications:

Max. required power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mW per channel

Isolation voltage, test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 kVAC

Isolation voltage working. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 VAC (reinforced) /

250 VAC (Zone 2, Div. 2)

Signal dynamics, input / output . . . . . . . . . . . . . . . . . . . . . . . . . . . Analog signal chain

Signal / noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 60 dB

Response time (0...90%, 100...10%) . . . . . . . . . . . . . . . . . . . . . . . . < 5 ms

Cut- o frequency (3 dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Hz

Input and output specifications:

Signal range, input to output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20.5 mA

Signal conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:1

Measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...23 mA

Start up current, typ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 uA

Current input overload, max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA

Input to output voltage drop, typ . . . . . . . . . . . . . . . . . . . . . . . . . . 1.35 V + (0.015 x Vout)

(Vout = Iout x Routput load)

Input voltage drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Unit voltage drop) + Vout

Output load, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Ω

Output load stability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.01% of span / 100 Ω

Voltage limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5 V

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