Dual channel loop detectors are used to identify the presence of vehicles by means of two independent inductive loops buried under the road and can be used in almost any application.
Detectors are available in both boxed and PCB format.
Dual channel detectors also can be used as an alternative to two single channel detectors to eliminate any presence of crosstalk.
In addition, they feature A-B logic to detect the direction of vehicles crossing the loops.
All detectors are CE tested and approved. A compact detector diagnostic unit is available for extracting data from new and existing sites.
|Sensitivity:||4-step selectable per channel:
High: 0.02% Δ L/L
Medium High: 0.05% Δ L/L
Medium Low: 0.1% Δ L/L
Low: 0.5% Δ L/L
|Frequency:||4-step adjustable, 20-70kHz (frequency determined by loop geometry)|
|Output configuration:||1 output relays per channel (fail-safe)
Fail secure (factory option)
|Pulse output duration:||Approx. 150ms (factory option 250ms)|
|Presence time:||Selectable: limited or permanent
Limited: presence 1 hour for 3% Δ L/L
|Protection:||Loop isolation transformer, zener diode clamping on loop inputs and gas discharge tube protection|
|Power requirements:||120V AC +/- 15% 48-60Hz (PD231)
230V AC +/- 15% 48-60Hz (PD232)
12-24V AC/DC +/- 15% (PD234)
|Requirement:||1.5VA max @ 230V|
|Output relays:||5A @ 230V AC; N/O contact per channel (fail-safe)|
|Operating temp range:||-40 °C to +80 °C
(circuit sealed against condensation)
|Material:||High heat ABS blend|
|Dimensions (mm):||76 x 40 x 78|
|Mounting:||Shelf or DIN rail socket|
|Connector:||Single rear-mount 11-pin submagnal
|Option:||1 metre flying lead|
As PD230 except for:
|Pulse output duration:||Approx. 150ms|
|Presence time:||1 hour for 3% Δ L/L permanent presence option|
|Power requirements:||24V AC/DC +/- 15%|
|Requirement:||1.1VA max @ 24V DC|
|Output relay:||1A @ 230V AC; change-over contacts|
|Dimensions (mm):||105 x 68|
|Mounting:||Panel or plug-in|
|Connector:||Molex 14-pin female|