PR electronics 6185 User manual

PERFORMANCE
MADE
SMARTER
Product manual
6185
Loop-powered isolator
No. 6185V101-UK
From serial no.: 211052001
TEMPERATURE | I.S. INTERFACES | COMMUNICATION INTERFACES | MULTIFUNCTIONAL | ISOLATION | DISPLAY

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.

6185V101-UK 3
Loop-powered isolator
6185
Table of contents
Warning ................................................................................................ 4
Symbol identification .................................................................................... 4
Safety instructions ...................................................................................... 4
How to demount system 6000 ........................................................................... 6
Functional highlights .................................................................................... 7
Technical characteristics ................................................................................. 7
Mounting / installation................................................................................... 7
Applications ............................................................................................ 8
Connections ............................................................................................ 9
Block diagram ........................................................................................... 10
Order ................................................................................................... 11
Electrical specifications .................................................................................. 11
Document history ....................................................................................... 13

4 6185V101-UK
Warning
This device is designed for connection to hazardous electric voltages. Ignoring this warning can result in
severe personal injury or mechanical damage.
To avoid the risk of electric shock and fire, the safety instructions of this guide 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 installation guide 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.
Warning
Until the device is fixed, do not connect hazardous voltages to the device. The following operations
should only be carried out on a disconnected device and under ESD safe conditions:
General mounting, connection and disconnection of wires.
Troubleshooting the device.
Repair of the device and replacement of circuit breakers must be done by PR electronics A/S only.
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 directives.
The UKCA mark proves the compliance of the device with the essential requirements of the UK
regulations.
Safety instructions
Definitions
Hazardous voltages have been defined as the ranges: 75 to 1500 Volt DC, and 50 to 1000 Volt AC.
Technicians are qualified persons educated or trained to mount, operate, and also trouble-shoot technically correct and in
accordance with safety regulations.
Operators, being familiar with the contents of this manual, adjust and operate the knobs or potentiometers during normal
operation.
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 2 000 m.
The device is designed for indoor use.
GENERAL
HAZARD-
OUS
VOLTAGE

6185V101-UK 5
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, i.e. wire
cross section, protective fuse, and location.
Descriptions of input / output and supply connections are shown in the block diagram and side label.
The following apply to fixed hazardous voltages-connected devices:
The max. size of the protective fuse is 10 A and, together with a power switch, it should be easily accessible and close
to the device. The power switch should be marked with a label indicating that it will switch off the voltage
to the device.
Year of manufacture can be taken from the first two digits in the serial number.
Calibration and adjustment
During calibration and adjustment, the measuring and connection of external voltages must be carried out according to the
specifications of this manual. The technician must use tools and instruments that are safe to use.
Normal operation
Operators are only allowed to adjust and operate devices that are safely fixed in panels, etc., thus avoiding the danger of
personal injury and damage. This means there is no electrical shock hazard, and the device is easily accessible.
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 6185V101-UK
How to demount system 6000
First, remember to demount the connectors with hazardous voltages.
Picture 1:
The device is detached from the DIN rail by moving the
bottom lock down.

6185V101-UK 7
Loop-powered isolator
6185
• 1-, 2- and 4-channel galvanic isolation
• Slimline channel width of less than 6 mm
• No separate supply necessary
• Low response time
• High noise suppression
Functional highlights
• Galvanic separation of analogue current signals.
• Elimination of ground loops and measurement of floating signals.
• A competitive choice in terms of both price and technology for galvanic isolation of current signals to SCADA systems or
PLC equipment.
• Especially useful in applications necessitating an unproblematic transmission of current signals according to NAMUR
(sensor error detection).
Technical characteristics
• PR 6185 is powered by the measured signal and loads the loop with max. 1.8 VDC.
• The input is protected against overvoltage and polarity error.
• The drop voltage for each channel can be calculated according to the following expression: Vdrop = 1.8 + (Iout. * Rload).
• The output is voltage-limited to 15 VDC.
• Inputs and outputs are floating and galvanically separated.
Mounting / installation
• Mounted vertically or horizontally on a DIN rail. As the devices can be mounted without distance between neighbouring
units, up to 168 channels can be mounted per metre.

8 6185V101-UK
Applications
Proce ss Comp uter
4...20 mA
4...20 mA
4...20 mA
4...20 mA
Inputs,
current 4...20 mA
Inputs,
current 4...20 mA
Outputs,
galvanically isolated
Outputs,
galvanically isolated,
to SCADA system

6185V101-UK 9
Connections
41 42 44
43
+
-
+
-
51 52 54
53
51 52 54
53
+
-
41 42 44
43
+
-
11 12 14
13
mA +
-
11 12 14
13
mA +
-
mA +
-
21 22 24
23
mA +
-
21 22 24
23
Outputs:
Current
Current
CurrentCurrent
Current
Inputs:
CurrentCurrent
Current
Channel 1
Channel 2
Channel 3
Channel 4
Channel 1
Channel 2
Channel 3
Channel 4

10 6185V101-UK
12
22
14
24
11
21
13
23
CH 1
CH 3
CH 2
CH 4
mA
mA
6185
15 V
15 V
+
-
+
-
42
52
44
54
41
51
43
53
Input+, channel 1
Input+, channel 3
Gnd, channel 1
Gnd, channel 3
Gnd.
Gnd.
I+, Output
I+, Output
Block diagram

6185V101-UK 11
Order
Type Channels
6185 1 channel
2 channels
4 channels
: A
: B
: D
Electrical specifications
Environmental conditions
Operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20°C to +60°C
Calibration temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20...28°C
Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)
Protection degree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP20
Mechanical specifications
Dimensions (HxWxD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 x 23.5 x 104 mm
Weight approx., 1 / 2 / 4 channels. . . . . . . . . . . . . . . . . . . . . . . . . . 155 / 180 / 230 g
DIN rail type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIN EN 60715 - 35 mm
Wire size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.13...2.08 mm2/ AWG 26...14 stranded wire
Screw terminal torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 Nm
Common electrical specifications
Internal consumption, max.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mW per channel
Drop voltage, min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 1.8 VDC
Drop voltage, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 V + (Iout. * Rload)
Isolation voltage, test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kVAC
Signal / noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 60 dB (0...100 kHz)
Response time (0...90%, 100...10%) . . . . . . . . . . . . . . . . . . . . . . . . < 4 ms
Accuracy, the greater of general and basic values:
EMC immunity influence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.5% of span
Current input
Measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...23 mA
Min. span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:1
Input resistance at 20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≈ 90 Ω + Rload
Current output
Signal range (span) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...23 mA
Min. signal range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:1
Load (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 600 Ω
Load stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.03% of span / 100 Ω
Current limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Voltage limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 VDC
General values
Input type Absolute accuracy Temperature coecient
mA ≤ ±0.1% of span ≤ ±0.01% of span / °C
Basic values
Input type Basic accuracy Temperature coecient
mA ≤±16 µA ≤±1.6 µA / °C

12 6185V101-UK
Observed authority requirements
EMC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/30/EU & UK SI 2016/1091
RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011/65/EU & UK SI 2012/3032
EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TR-CU 020/2011
Of span = of the presently selected range

6185V101-UK 13
Document history
The following list provides notes concerning revisions of this document.
Rev. ID Date Notes
101 2311 UKCA added.

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