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1

DESCRIPTION

The RTM300/500 vehicle detection system monitors changes in the earth’s
magnetic field caused by passing vehicles and signals this change to the
controller as a detection event.

The RTM vehicle sensor system - comprising the RTM300 sensor and the
RTM500 interface card - is specifically designed for use at traffic signal controlled
locations for the detection of vehicles. It has been designed to be retrofitted at
failed loop locations and can also be installed at new locations during site
refurbishment or during site highway works.

It is easy and quick to install, with the interface card fitting into the controller in
exactly the same manner as a loop detector card, and the sensor into available
ducting, or as defined in section 6 below.

Each RTM500 interface card can support up to 4 RTM300 sensors. Each sensor
takes power and set up data from, and signals detection events to, the interface
card over a two wire link which may be either new or legacy loop feeder cable.

2

SPECIFICATIONS & EU DIRECTIVES

This Equipment has been designed to conform to:
Low Voltage Directive: 73/23/EEC
Electromagnetic Compatibility Directive: 89/336/EEC
BS 7671: 2001 AMD 9781
BS EN 50293: 2001
TR 2512A
TRG 0600B

3

MODIFICATIONS

There are no approved modifications.

4

REPAIRS

The RTM300 and RTM500 are entirely self-contained. Should either prove faulty,
no repair shall be attempted but it shall be replaced by another

unit of the same

type

. All suspect or faulty equipment shall be returned to the supplier for repair.

5

WARNINGS

.

5.1 Use of components other than those permitted herein, or modifications
or enhancements that have not been authorised by Radix Traffic Limited,
may invalidate the Type Approval and Warranty of this product.

5.2 Always observe precautions for the handling of electrostatic devices
where applicable.

5.3 Insulation Testing of Detector Feeder Cables. Before any 500v insulation
(Megger) tests are carried out to detector feeder cables, it is imperative that
any RTM300 sensors are first disconnected fully from all feeder cores.

Содержание RTM300

Страница 1: ...sub surface locations for vehicle detection as an alternative to inductive loop or similar technologies CONTENTS 1 DESCRIPTION 2 SPECIFICATIONS EU DIRECTIVES 3 MODIFICATIONS 4 REPAIRS 5 WARNINGS 6 INSTALLATION 7 TESTING 8 DECLARATION OF INCORPORATION 9 TECHNICAL DATA Document No TAMPRTM DOC Issue 4 Date 23 MARCH 2015 Written BPC Checked LS Approved BPC ...

Страница 2: ... a two wire link which may be either new or legacy loop feeder cable 2 SPECIFICATIONS EU DIRECTIVES This Equipment has been designed to conform to Low Voltage Directive 73 23 EEC Electromagnetic Compatibility Directive 89 336 EEC BS 7671 2001 AMD 9781 BS EN 50293 2001 TR 2512A TRG 0600B 3 MODIFICATIONS There are no approved modifications 4 REPAIRS The RTM300 and RTM500 are entirely self contained ...

Страница 3: ...MED HIGH 0 1 4min 1 1 HIGH 1 1 35min NOTE This equipment is fitted with overvoltage protection to minimise the disruption that may be caused by induced voltages from lightning or other environmental effects 6 1 INSTALLATION OF THE RTM300 SENSOR 6 1 1 The installation of the RTM300 sensor presumes that a suitable duct has been installed has sufficient capacity and is accessible Where more than one ...

Страница 4: ... end of the duct A recess is provided in the potting of the sensor to help locate the push rod When the sensor is in place withdraw the push rod and make the draw cord off within the pit preferably attaching it to the pit wall or other fixed location 6 1 5 Check the bottle joint to ensure that it is watertight and make the pit tidy before closing it 6 1 6 When all sensors are installed return to t...

Страница 5: ...d 7 TESTING 7 1 Set presence time switches P1 and P2 to the off left position for all unused channels that will not have an RTM300 sensor connected to them The required presence time normally 4 minutes for UK traffic control applications for all active channels should also be set When the RTM500 Interface Cards are installed and powered for the first time the yellow and red LEDs on the front panel...

Страница 6: ...ty settings should be adjusted to improve vehicle detection The sensitivity settings are adjusted using switches S1 and S2 on the front panel and the settings indicated on the product label or in section 6 above Once a new sensitivity has been selected for the channel of interest a full reset must be performed by pushing and holding in the reset button for greater than 3 seconds Reset Button Short...

Страница 7: ...her back towards the kerb line 7 4 If necessary the presence time can be adjusted using switches P1 and P2 then following the same full reset process as described in section 7 3 above 7 5 Use a handset to verify that the controller is responding to the outputs 7 6 Perform any other acceptance testing as required in their procedures by the local authority responsible for the site NOTE To simplify c...

Страница 8: ...Page 8 8 DECLARATION OF INCORPORATION ...

Страница 9: ...en and close to detect i e these are joined at the interface card Jumper position 1 top two horizontal pins on the card can then be used to invert the output signal to get either open to detect OR close to detect but not both at the backplane If the RTM500 is to be powered by a 24v AC power supply the AC connections must be made to pins 19 20 the same as 24v DC supply If left at pins 23 24 the car...

Страница 10: ...sent these will show a dc voltage of about 15V The low side of each feeder can be commoned and the high side should be treated as a separate core Where a phase has either X Y Z detection or for MOVA IN X SL then all three detectors may be connected back to the controller on a four core feeder This has to be broken into at the Z location and extended to the Y and then two cores run to the X It is s...

Страница 11: ... we therefore recommend an absolute minimum internal diameter of a 20mm duct for easy passage of the sensor If smaller diameter ducts are used then care should be taken that re instatement of the carriageway does not distort the duct as this may prevent easy passage of the sensor If more than one sensor is to be fitted inside a cross carriageway duct allow adequate clearance for the cable and draw...

Страница 12: ... a chamber or pit using spring clips fastened to the chamber or pit wall Certain kerb materials are designed with a bore and may accept an RTM300 sensor Users are strongly advised to trial any mounting location before committing to the final deployment Electrical Interference As the RTM300 sensor detects changes in the earth s magnetic field it is recommended that the sensor is not installed insid...

Страница 13: ...eliable detection in the lane of interest using just the sensitivity switches on the RTM500 Interface Card it may be possible to re position the sensors off centre i e either towards the kerb or further out from the kerb to achieve better results and lane discipline Multiple sensors per lane In rare situations it may be desirable to install two or more sensors per lane and then connect their outpu...

Страница 14: ...RTM300 Standard Cable Length 8 0m Interface Card Dims 3U x 5HP 160mm Eurocard to TR2512 RTM300 Weight unpackaged 475g RTM500 Weight unpackaged 200g ENVIRONMENTAL Operating Temperature Range 15ºC to 70ºC Storage Temperature Range 20ºC to 80ºC RADIX TRAFFIC LIMITED D3 Premier Centre Abbey Park Romsey Hampshire SO51 9DG England Tel 01794 511388 email info radixtraffic co uk web www radixtraffic co uk...

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