American International Electric IEI 834L Dépliant

Document # 6153400, Rev. 3.1 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

The IEI 834L Viper Plus with Contact is a frame mount glassbreak/selective 
vibration detector.  The Viper Plus contains a custom integrated circuit 
designed specifically to detect vibration signals associated with forced entry in 
a wide variety of surfaces including: windows, doors, walls and glass of all 
types.  You can adjust the Viper Plus for sensitivity over a wide range, but it’s 
immune to low frequency vibration.  The Viper Plus is a standalone sensor 
with no additional processor required.   
 

•  Patented Integrated Circuit Design 

•  Solid-State Piezoelectric Device 

•  No Separate Processor Required 
•  Latching Alarm LED 

•  Auto Reset Alarm Relay 

•  Simplified Calibration Test Mode 
•  Cover Tamper Contact 

•  Double Knock Feature For Alarm Verification 

•  Immune to Low Frequency Vibration 
•  High-Low Sensitivity Jumper 
 

When the Viper Plus goes into alarm, the relay contact remains open for 8 
seconds before re-closing to detect a second independent attack, if 
necessary. 
 

The cover is monitored against unwanted sensitivity changes or tampering 
with a switch mounted on the circuit board.  This switch is internally wired in 
series with the alarm relay.  No additional wiring is necessary. 
 

Most unwanted signals fade within 200 milliseconds.  Prolonged attack or 
breaking glass exceeds this time.  When Double Knock Mode is enabled and 
the Viper Plus detects a signal above set sensitivity level it enters the active 
mode but ignores all levels of signal for approximately 200 milliseconds.  If the 
vibration remains above the set sensitivity level for more than 200 
milliseconds, or a second attack exceeds the set sensitivity level within 8 
seconds, the Viper Plus goes into alarm. 
 

The first time you trip your Viper Plus there is an 8 second delay before the 
LED turns on (the relay opens for 8 seconds as it normally does).  After this 
first trip the LED remains on and shows each subsequent trip by turning off for 
8 seconds.  When you are finished testing, interrupt the power to reset the 
LED for normal operation. 
 
 
 

 
Operating Voltage: 10-15VDC (filtered and regulated) 
Power Consumption: 6mA (normal); 13mA (alarm) 
Range: Up to 10 ft. radius 
Voltage Monitor: Low or No Voltage cause alarm activation 
Voltage Supervision: Alarm Relay 
Relay Activation Time: 8 seconds 
Alarm LED: Latch or auto-reset 
Alarm Relay: SPST (form A) contacts, 0.5A @ 30VDC 
Installation: Hardwire 4 wires 
Operating Temperature: 0 

° to 120 ° F (-20° to 50°C) 

Mounting: Surface – screws included 
Sensor Size: 3.35” long x 0.90” wide x 1.00” high 
Weight: 2.1 ounces 
Color: White