NorthStar NP2-ES PlugIn Loop Detector

Price: $129.00


NorthStar NP2-ES PlugIn Loop Detector

Northstar NP2 has been specifically designed and engineered for use in the Parking/Access Control industries. With standard operations including programmable pulse and presence options, fail-safe or fail-secure operation, compatibility with all radio controls, timing features and more, the NP2 covers your detection needs.

The NP2’s wide inductance range allows for use with small loops sometimes found in the Parking/Access Control industries (for recommended loop sizes please consult the Northstar Loop Information Guide).

Separate indicators for power on, detect relay 1, detect relay 2 and fault provide for quick visual verification of proper operation. Loop diagnostics are easily viewed with the front panel fault indicator, differentiating between current and historical faults thus facilitating troubleshooting.

Small size and full list of features lend the NP2 to any Parking/Access Control use from simple presence detection to configured pulse/presence lengths with output extensions and/or delays.

Reliable operation and long field life are key engineering goals in every Northstar product.


Product Info
Features 10 selectable Sensitivities
4 selectable Frequencies
Wrong voltage protection
Output Timing – Extend & Delay
Selectable Presence times
Selectable Pulse lengths
Separate Power, Detect and Fault Indicators
Automatic Sensitivity Boost
1 Year Warranty
Specifications Output Rating: Solid State both Detect and Fail. 30mA Maximum
current sink. Outputs are protected from over-voltage or polarity

Power: 10 to 30 volts AC or DC, 5mA nominal

Inductance Range: 20uH to 1500uH

Temperature Range: -30 F to +180 F

Lead-In Length: up to 2500 ft. with proper lead-in and loop.

Dimensions: 2.4” H x 2.25” D x 0.8” W

Supply Voltage – incorrect voltage supplied to the unit will
not result in damage, the unit will simply not operate until
correct voltage is supplied. No fuses need to be reset.

Indicators – front panel indicators:
Power/Fault – Green, solid with correct power supplied
Flashes during a fault condition
Fault flash sequence: Single flash and pause = Open Circuit Loop
Double flash and pause = Shorted Loop
Detect – Red, solid during detect

Connector: – 10 position
Pin # Function
1 Loop
2 Loop
3 Power – 10 to 30 V AC/DC
4 Not used
5 Not used
6 Fail output
7 Fail output
8 Detect output
9 Power – 10 to 30 V AC/DC
10 Power common


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