301UM0031_01
TD136 Enhanced Vehicle Detector User Manual
Page: 14 of 29
5.
INSTALLATION GUIDE
Optimum functioning of the detector module is largely dependent on factors associated with the
inductive sensor loop connected to it. These factors include choice of material, loop configuration and
correct installation practice. A successful inductive loop vehicle detection system can be achieved
bearing the following constraints in mind, and strictly following the installation instructions. The detector
must be installed in a convenient weatherproof location as close as possible to the loop.
5.1 Product Safety Requirements
•
WARNING:
The unit must be EARTHED.
•
WARNING:
Disconnect the power before working on the unit.
•
WARNING:
On 120 V
AC
and 230 V
AC
models a readily accessible disconnect device
MUST be incorporated into the Mains wiring (As per EN 60950 section 1.7.2)
•
WARNING:
All models the power supply to the unit MUST have short circuit protection
and over current protection installed at the power supply source (As per EN
60950 section 1.7.11) typically this will be a 5 Amp Magnetic Circuit Breaker
for AC models and a fuse for DC models.
•
WARNING:
This product must be installed in an enclosure.
•
WARNING:
No user serviceable parts inside. Warranty void if cover removed.
ONLY SERVICE PERSONNEL MAY OPEN THE UNIT TO CHANGE THE
INTERNAL SETTINGS.
•
WARNING:
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
voltage (less than 60 V
DC
or less than 42 V
AC
) applications.
5.2 Operational Constraints
5.2.1 Environmental Factors to Consider
Even though the TD136 Enhanced Vehicle parking detectors are housed, the system integrator MUST
ensure that the detector is installed in a housing/fire enclosure to protect it from the environment.
The TD136 Enhanced Vehicle parking detectors are rated to operate over the industrial temperature
range but the rate of temperature change MUST not exceed 1°C per minute. This system integrator
MUST ensure that the housing used complies with this rate of temperature change requirement.
For installation Outdoors refer to Appendix B.
For additional information on Environmental Factors refer to the section “Environmental Influences
to Design Parameters” in the “Loops and Loop Installations” Manual, Nortech Document No. MKT05.