Rae H2 Operating Instructions

SINGLE CHANNEL LOOP DETECTOR
I General
The Model H2 is a single channel detector with a solid state Detect Output and a
solid state Fail Output. Please verify source voltage before applying power.
The Model H2 will operate on voltages between 8 and 30 VDC with a maximum
current requirement of 45 mA.
II Indicators and Controls
i Power / Detect / Fail LEDs
The detector has one green and two red LED indicators used to provide
indications of the detector's power status, output state, and/or loop failure
conditions. The table below lists the various indications and their meanings.
Status POWER LED (Green) DETECT LED (Red)
Off
On
Flash
ii Rotary Switch (Sensitivity)
The eight-position rotary switch selects one of eight (8) sensitivity levels as
shown in the table below. 0 is lowest and 7 is highest, with normal (factory
default) being 4. Use the lowest sensitivity setting that consistently detects the
smallest vehicles. Using higher than necessary sensitivity levels may result in
false detections.
Position
-∆L/L
* Factory default setting.
MODEL H2
OPERATING INSTRUCTIONS
No power
Power to detector
N/A
0 1
2.56% 1.28% 0.64% 0.32% 0.16% * 0.08% 0.04% 0.02%
Detect Output Off
Detect Output On
2 Hz (50% duty cycle)
Delay timing
4 Hz (50% duty cycle)
Extension timing
2 3
FAIL LED (Red)
Loop OK
N/A
1 Hz (50% duty cycle)
Loop Failure
One flash every five seconds
Prior Loop Failure
4 * 5 6 7