Biral RWS-30 Manuel utilisateur

RWS Series

Visibility Weather Sensors

RWS-30

QUICK START GUIDE

PATENT COVERAGE

The Present Weather Measurement Techniques are protected by the following

Patents.

U.S. Patent No. 4,613,938

Canadian Patent No. 1,229,240

German Patent No. 3,590,723

RoHS

compliant

Biral – P O Box 2, Portishead, Bristol BS20 7JB, UK

Tel: +44 (0)1275 847787

Fax: +44 (0)1275 847303

Email: info@biral.com

www.biral.com

PROPRIETARY NOTICE

The information contained in this manual (including all illustrations, drawings, schematics and

parts lists) is proprietary to BIRAL. It is provided for the sole purpose of aiding the buyer or

user in operating and maintaining the instrument. This information is not to be used for the

manufacture or sale of similar items without written permission.

No part of this manual may be reproduced without the express permission of BIRAL.

Manual Number : 107383

Revision : 00A

Thank you for choosing Biral as your supplier of Road Weather Sensors.

This guide is intended to get your RWS-30 sensor installed and working as quickly as

possible with the most common (Default) settings and is intended for people who are

familiar with installing electrical equipment.

Further information and configuration details can be found in the User Manual. If you are

unfamiliar with this product, please consult both this quick start guide and the user manual

before installation.

Please note these units are supplied calibrated, any damage during transit or installation

should be reported.

The RWS-30 User Manual is free to download from:

http://www.biral.com/technical-support/downloads/manual-downloads/

Contents

1IN THE BOX........................................................................................................................4

2SENSOR FEATURES..........................................................................................................5

3SENSOR CONNECTIONS.................................................................................................6

3.1C

ONNECTINGPOWER

..................................................................................................................6

3.2C

ONNECTINGCOMMUNICATIONS

..................................................................................................7

3.3C

ONNECTINGANALOGUEOUTPUTS

...............................................................................................8

3.4C

ONNECTINGTHERELAYS

(

OPTIONAL

)...........................................................................................8

3.5C

ONNECTINGTHEFERRITES

..........................................................................................................9

4CONFIRMING THE COMMUNICATIONS.....................................................................10

5CONFIRMING THE OUTPUTS........................................................................................11

5.1A

NALOGUESIGNALCHECKS

........................................................................................................11

5.2R

ELAYCHECKS

.........................................................................................................................11

6SENSOR INSTALLATION................................................................................................12

6.1M

OUNTINGDETAILS

.................................................................................................................13

6.2E

LECTRICALGROUNDING

PROTECTION

.......................................................................................14

7MAINTENANCE.................................................................................................................15

7.1C

ALIBRATIONCHECK

.................................................................................................................15

7.2W

INDOWCLEANING

.................................................................................................................15

Your safety is important, whilst this sensor has been designed to be safe in

operation, it can be made unsafe through incorrect installation practices. Please

follow the instructions contained within this guide and the manual; statements

marked with a warning triangle are especially important for safety and

performance of the unit.

Before you start installation of this unit; be aware of, and follow, all labelling

and safety regulations applicable to the country in which you are installing this

sensor.

1IN THE BOX

The sensor is securely packed in an appropriate shipping container. Should the contents be

damaged, please inform Biral at the earliest opportunity.

In the box with your RWS sensor, you will find:

Part Qty Identification Biral part

number

‘U’ mounting

bolts 2

105252

M8 nuts 4

104749

M8 Washers 4 each

Plain

Split

Plain 104736

Split 105449

Mounting saddle 2

105356

Clip ferrite 2

105457

Cable gland

sealing plugs

(Fitted to

sensor)

2 x

M12

2 x

M16

M12

M16

M12 106185

M16 106186

Quick start

guide

(This document)

tbd

Calibration

certificate 1

N/A

You may also

have

Calibration kit*

(optional)

105634

*The calibration kit is in a protective carrying case, containing: a calibration plaque, a

mounting arm (referred to as the calibration reference plaque when assembled) and 3 grey

foam plugs.

Please also download

the User Manual from

the Biral website

2SENSOR FEATURES

The RWS sensor can be configured to suit different requirements

Standard features

Configurable

option Default Additional optional settings

Visibility 200m – 99.99km None – fixed measurement range

Serial data

output

RS232 RS422/485

Baud rate 9600 configurable between

1200 to 57600 baud

0-10 V Output EXCO MOR

4-20 mA Output EXCO MOR

Optional features

Configurable

option Default Additional optional settings

Relays Fault, RL1-1km, RL2-2km Fault, RL1-1km,

window contamination

Relays Disabled

This Quick Start Guide assumes the most common (Default) settings are required. Should

you require any of the optional settings, the User Manual gives comprehensive details of

how to configure and change these settings.

3SENSOR CONNECTIONS

To access the connection terminals, you will need to open the RWS sensor, by loosening the

captive screws on the front panel.

For J11 and J12 Connectors, strip back the wire 11mm. This connecting strip is of a lever

clamp design. The wire is released by pressing on the orange lever with a small screwdriver

with a flat blade of no more than 2.5mm.

3.1 CONNECTING POWER

Pin Number Designation Wire size

J11/A & B Not Used 20-26AWG 0.5-0.13mm2

J11/C Power +9 to +36V DC Supply 20-26AWG 0.5-0.13mm2

J11/D Power 0V Supply 20-26AWG 0.5-0.13mm2

J11/E & F Not Used 20-26AWG 0.5-0.13mm2

This sensor MUST BE EARTHED. Failure to install a suitable earth may result in

inaccurate readings and / or damage to the sensor.

Failure to install an earth when using mains voltages on the relays will make the unit

potentially unsafe.

J11/D is the internal signal ground reference point. Care must be taken, to ensure that

this negative supply lead is at or near ground potential. If it develops more than 10V

DC with respect to ground, damage will be caused to the sensor.

Figure 1: PCB diagram showing J7, J11,

J12, and the relay connections

3.2 CONNECTING COMMUNICATIONS

The RWS-30 can be operated with either RS232 or RS422 or RS485 communications. It is

not possible to operate both the RS232 and the RS422/RS485 together.

Use Jumper J7 to select desired communications protocol.

If the board is orientated with J11 and J12 at the bottom, pin 1 of J7 is to the left. J7 is in

the middle of the board next to capacitors (see Figure 1).

Pin connection for RS232

Pin Number Designation Wire size

J12/A RS232 common/0V 20-26AWG 0.5-0.13mm2

J12/B RS232 Tx (signals FROM sensor) 20-26AWG 0.5-0.13mm2

J12/C RS232 Rx (signals TO Sensor) 20-26AWG 0.5-0.13mm2

Pin connections for RS422/485

Pin Number Designation Wire size

J12/A RS422/485 common/0V 20-26AWG 0.5-0.13mm2

J12/D RS422/RS485 Rx+ (TO sensor) 20-26AWG 0.5-0.13mm2

J12/E RS422/RS485 Rx- (TO Sensor) 20-26AWG 0.5-0.13mm2

J12/F RS422/RS485 Tx- (FROM sensor) 20-26AWG 0.5-0.13mm2

J12/G RS422/RS485 Tx+ (FROM Sensor) 20-26AWG 0.5-0.13mm2

Communication

protocol Jumper

position

RS422/RS485 1&2

RS232 2&3

Figure 3: Pin connections for

communications

Figure 2: J7 pin

numbering

3.3 CONNECTING ANALOGUE OUTPUTS

Pin connections for analogue outputs

Pin Number Designation Wire size

J12/H 0-10V Analogue Output +ve 20-26AWG 0.5-0.13mm2

J12/I 0-10V Analogue Output -ve 20-26AWG 0.5-0.13mm2

J12/J 4 – 20mA Analogue Output +ve 20-26AWG 0.5-0.13mm2

J12/K 4 – 20mA Analogue Output -ve 20-26AWG 0.5-0.13mm2

J12/L Not Used 20-26AWG 0.5-0.13mm2

3.4 CONNECTING THE RELAYS (OPTIONAL)

The relay connectors are a two-part connector with pins in the circuit board and a

removable plug for the connections. It is advised that the plug is removed from the pins to

enable the connections to be made to the cable before re-connecting to the circuit board.

The connections are of a screw clamp type. For the relay connectors strip back wire

insulation by 5mm. Relays are rated at 250Volts AC, 2Amps.

Pin connections for Relay connections

Care must be taken to ensure that the voltage rating of the cable is correct for

the switching application requirement. If the relays are to be used with mains

voltages, please comply with all national and international safety regulations.

A protective earth bonding test of the sensor housing should be carried out.

Pin Designation Wire size

RL2 Normally Closed 16-26AWG 1.3-0.13mm2

RL2 Common terminal 16-26AWG 1.3-0.13mm2

RL2 Normally Open 16-26AWG 1.3-0.13mm2

RL1 Normally Closed 16-26AWG 1.3-0.13mm2

RL1 Common terminal 16-26AWG 1.3-0.13mm2

RL1 Normally Open 16-26AWG 1.3-0.13mm2

Fault Normally Closed 16-26AWG 1.3-0.13mm2

Fault Common terminal 16-26AWG 1.3-0.13mm2

Fault Normally Open 16-26AWG 1.3-0.13mm2

Figure 4: Showing

the relay connections

3.5 CONNECTING THE FERRITES

The unit is supplied with two clip type ferrites; these are not optional items and must be

fitted.

If the ferrites are not fitted, the sensor could be affected by external electromagnetic noise.

The ferrites supplied with the unit should be clipped over the power and the signal leads,

between the gland and the connector blocks. Ferrites are not required on the relay

connections.

This sensor MUST HAVE FERRITES INSTALLED. Failure to install the supplied ferrite

cores may result in inaccurate readings or lost communications

Figure 5: location of the ferrites when installed

4CONFIRMING THE COMMUNICATIONS

If you are unfamiliar with the sensor, we recommend that the unit is powered and tested

prior to mounting, as when mounted the unit could be difficult to access. When checking the

functionality use suitable connections, do not short any contacts together.

To confirm the unit functions correctly:

1. Connect your chosen method of communication (RS232, or RS422/485) to a PC

running the Biral Sensor Interface Software.

Available to download at:

htttp://www.biral.com/technical-support/downloads/software-downloads/

2. Ensure an earth connection to the chassis, and power connected to J11 C&D (9 to

36V, and 0V)

3. Connect to the Biral Sensor interface software using default 9600 baud

4. Apply power to the sensor: If communications are working the sensor will respond

with “Biral Sensor Startup”.

5. Check Data Transmission to Sensor:

Send the command R? from the PC terminal to the sensor:

The sensor will respond with its Remote Self-Test & Monitoring Message.

For example:

100,2.509,24.1,12.3,5.01,12.5,00.00,00.00,100,105,100,00,00,00,+021.0,4063

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