Table of Contents
Advertisement
Quick Links
Nortech International (Pty) Ltd
PO Box 4099
Willowton Hub
Pietermaritzburg
3200 South Africa
Tel: (033) 345 3456
Fax: (033) 394 6449
Email: mkt@nortech.co.za
APPROVALS
Originator:
Checked:
Engineering Manager: _____________________________
Approved:
Marketing:
Checked and approved: ______________________________ Date: __________________
Nortech International (Pty) Ltd
All rights reserved
Copyright © 2009
Document Number: 301UM0031_01
Date of Issue: September 2009
This document is for information only and unless otherwise indicated, is not to form part of any contract. In accordance
with the manufacturer's policy of continually updating and improving design, specifications contained herein are subject
32A Wiganthorpe Road
Pietermaritzburg
3201 South Africa
Reg. No: 98/1095
Int. Tel: +27 33 345 3456
Int. Fax: +27 33 394 6449
URL: www.nortech.co.za
Unknown
______________________________
______________________________
____________________________
TD136 Enhanced
Vehicle Detector
User Manual
to alteration without notice.
Date: dd/mm/yy
Rev
19/09/2009
00
19/09/2009
01
updated: K. Mbatha
Date: __________________
Date: __________________
CRN No.
2378
2378
Advertisement
Table of Contents
Related Manuals for Nortech TD136
Summary of Contents for Nortech TD136
- Page 1 Nortech International (Pty) Ltd PO Box 4099 32A Wiganthorpe Road Willowton Hub Pietermaritzburg Pietermaritzburg 3201 South Africa 3200 South Africa Reg. No: 98/1095 Tel: (033) 345 3456 Int. Tel: +27 33 345 3456 Fax: (033) 394 6449 Int. Fax: +27 33 394 6449 Email: mkt@nortech.co.za...
- Page 2 Nortech International (Pty) Ltd PO Box 4099 32A Wiganthorpe Road Willowton Hub Pietermaritzburg Pietermaritzburg 3201 South Africa 3200 South Africa Reg. No: 98/1095 Tel: (033) 345 3456 Int. Tel: +27 33 345 3456 Fax: (033) 394 6449 Int. Fax: +27 33 394 6449 Email: mkt@nortech.co.za...
-
Page 3: Table Of Contents
Vehicle Detector - Order number 305FT0004 ........18 TD136 Enhanced – 230 V Vehicle Detector - Order number 305FT0001 ........19 TD136 Enhanced – 12 to 24 V Vehicle Detector - Order number 305FT0010 ......19 AC/DC APPLICATIONS ........................... 20 CUSTOMER FAULT ANALYSIS ...................... - Page 4 IEC 60950-22:2005 – Outdoor cabinet ................26 Appendix B.2 IEC 60950-22:2005 - Northern Europe ................26 Appendix B.3 IEC 60950-1:2005 – Overvoltage Category ................ 26 APPENDIX C –REQUEST FOR TECHNICAL SUPPORT FORM ..............27 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 3 of 29...
- Page 5 Please refer local regulations for directions on how to dispose of this product in an environmental friendly manner. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 4 of 29...
-
Page 6: Introduction
The Presence relay is fail-safe and will close on a vehicle detect or in the event of power failure. The TD136 Enhanced Vehicle Detector is also provided with an integral fault relay, which will provide an output in the event of a loop fault condition. -
Page 7: Technical Data
1 x Channel Status LED - Green Reset Reset by push button on front of enclosure Surge protection Loop isolation transformer, gas discharge tubes, and Zener Diode clamping on loop input 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 6 of 29... -
Page 8: Electrical Data
-40° C to +80° C Operating Temperature -40° C to +70° C Humidity Up to 95% relative humidity without condensation Circuit protection Conformal coating over the PCB and all components IP Rating IP30 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 7 of 29... -
Page 9: Mechanical Data
78mm (H) X 41mm (W) X 78mm (D) 80 mm 40.6 mm Approvals CE Regulations: EN 301 489-3 Equipment Type: III Class of Equipment: 2 EN 50293 Performance Criteria B Safety IEC / EN 60950-1 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 8 of 29... -
Page 10: Operating Instructions
OPERATING INSTRUCTIONS Hardware Set-up The TD136 Enhanced Vehicle Detector is a single channel traffic detector designed to be shelf or DIN rail mounted with the controls and visual indicators at the front and wiring at the rear of the enclosure. -
Page 11: Sensitivity
On times longer than 1 second there will be a “paralysis time” of approximately 2 seconds between actuations. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 10 of 29... -
Page 12: Delay Time
This condition can be restored by removing the power or by depressing the reset button. The green LED will also glow whenever a vehicle is detected passing over the inductive loop. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 11 of 29... -
Page 13: Principal Of Operation
Once tuned, any slow environmental change in loop inductance is fed to a compensating circuit within the detector, which keeps the detector correctly tuned. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 12 of 29... -
Page 14: Detector Sensitivity
Sensitivity of the detection system is dependent on factors such as loop size, number of turns in the loop, feeder length and the presence of metal reinforcing beneath the loop. Sensitivity levels of the TD136 Enhanced Vehicle Detector have been carefully optimized for traffic control applications. -
Page 15: Installation Guide
Only use CE approved 11 pin relay bases such as Nortech Part No. CTR119090 or equivalent. As an alternative to the 11 pin realy base, Nortech has a 11 pin wiring harness, Nortech Part No. 301FT0041, which can only be used in SELV... -
Page 16: Crosstalk
Running feeder cables in their own slots, separated by at least 300mm For additional information on Crosstalk refer to the section “Crosstalk Prevention” in the DU100 Diagnostic Unit User Manual Nortech Document No. 895UM0001. 5.2.3 Reinforcing The existence of reinforced steel below the road surface has the effect of reducing the inductance, and therefore the sensitivity, of the loop detection system. -
Page 17: Sensing Loop Geometry
For additional Information on loop geometry refer to the following documents: “INDUCTIVE LOOP VEHICLE DETECTION” – Nortech Doc. No. MKT01. “TRAFFIC DETECTION CONCEPTS” – Nortech Doc. No. MKT02. “TRAFFIC APPLICATION MANUAL” – Nortech Doc. No. MKT04... - Page 18 3 m (Road Width = 4 m) MAX DISTANCE APART No Limit 45° CROSSCUT TO PROVIDE STRESS RELIEF TRAFFIC DIRECTION Figure 5.1 Adjacent loops connected to different detector modules Figure 5.2 Slot Details 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 17 of 29...
-
Page 19: Configuration
Refer to the label on the side of the unit for connector PIN assignment. NOTE 1: The tables below show the PIN assignments for Nortech’s standard TD136 Enhanced models on other models the pin assignments may change. WARNING: 9. The wiring harness is only rated for SELV voltages (less than 60Vdc or less than 42Vac). -
Page 20: Td136 Enhanced - 230
PIN No. assignments TD136 Enhanced – 12 to 24 V Vehicle Detector - Order number AC/DC 305FT0010 11-pin connector wiring for TD136 Enhanced Vehicle – 12 to 24 V Detector – Order AC/DC number 305FT0010 301FT0041 Wiring... -
Page 21: Applications
APPLICATIONS The TD136 Enhanced Vehicle single channel Detector can be used in a variety of applications in the traffic and vehicle control environments. For VA (Vehicle Actuated) or SVA (Semi Vehicle Actuated) traffic intersection control Some of the features that make the TD136 Enhanced Vehicle Detector ideal for these purposes have been described in the preceding paragraphs. -
Page 22: Customer Fault Analysis
Crosstalk with adjacent a) Change frequency detector. setting. b) Faulty loop or feeder b) Check that the feeders are connection. correctly connected and adequately twisted. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 21 of 29... -
Page 23: Du100 - Detector Diagnostic Unit
8.2.1 Interpretation of DU100 readings 8.2.1.1 Frequency For the TD136 Enhanced Vehicle Detector the Minimum frequency is 12 kHz and the Maximum frequency is 85 kHz If a 20 µH loop is connected directly (no feeder cable) to the Detector and the Frequency switches are set to “High Frequency”... -
Page 24: Frequency Drift
8.2.1.2 Frequency drift The TD136 Enhanced Vehicle Detector can handle environmental conditions that cause the frequency to drift up to at a rate of approximating 1%∆L/L per minute. If the Drift reading approaches this value the detector will have problems tracking the environmental change If the drift is higher than say 0.5 %∆L/L per minute this will indicate a possible fault with the loop... -
Page 25: Crosstalk
This device together with the DU100 hand-held test instrument will allow comprehensive analysis of the operating characteristics of the detector. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 24 of 29... -
Page 26: Appendix A - Fcc Advisory Statement
These booklets may be purchased from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. WARNING: 13. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 25 of 29... -
Page 27: Appendix B - Installation Outdoors
If the unit is likely to be exposed to transient overvoltage greater that IEC 60950-1 Overvoltage Category II additional protection must be provided external to the unit on the supply lines. 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 26 of 29... -
Page 28: Appendix C –Request For Technical Support Form
Installation. If there is a problem later on you can identify what has changed. For locating faults in “Nortech Inductive Loop Vehicle Detector” installations it is highly recommended that you use the DU100 DIAGNOSTICS UNIT. Please refer to the DU100 user manual Doc. No. 895UM0001 for details of how to operate the DU100. - Page 29 Type of feeder cable used (screened, armoured, multicore, etc.) ____________________________________________________________________________________ ____________________________________________________________________________________ In the feeder cable how many twists per meter are there?____________ (should be more than 20 per metre) 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 28 of 29...
- Page 30 (Reset: manual or power failure, Short circuit, Open circuit, Indeterminate, Inductance change of greater than 15 : _________________________________________________________________ %∆L/L (typical) : _______________ Crosstalk If fail actual frequencies of the two problem detector loops (Pass / Fail) Frequency 1:___________kHz Frequency 2:______________kHz 301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 29 of 29...