background image

2-Zone Remote Alarm (ARA) User’s Manual 

 

 

1-800-LOGGERS (564-4377) • 508-759-9500 
www.onsetcomp.com • [email protected]

 

© 2011 Onset Computer Corporation. All rights reserved. Onset and 
HOBO are trademarks or registered trademarks of Onset Computer 
Corporation. All other trademarks are the property of their 
respective companies. 

5868-B Remote Alarm MAN 

 

 

Figure 3: Normally Open (NO) multiple logger configuration 

2-Zone Operation 

If you are configuring the system for alarms in two zones, both zones 
must be of the same type (NC or NO). 

 

Figure 4: 2-zone logger inputs in NC configuration 

Connecting Multiple Remote Alarms to One Logger 
Alarm output 

Up to two Remote Alarms may be connected to a single logger alarm 
output as shown below. A total of 1000 feet of wire maximum (30 AWG 
minimum) may be used to interconnect the Remote Alarm(s). 

 

Figure 5: NC multiple Remote Alarm configuration 

 

Figure 6: NO multiple Remote Alarm configuration 

It is imperative that the A side of the terminal block be connected to 
the A side in multiple Remote Alarm hook-ups (and B side to B side). 
Failure to do this will cause the remote alarm units to malfunction. If 
the Remote Alarm is used with the AVD-45 AutoDialer, then be certain 
the white and yellow wires are connected as shown below. The AVD-45 
AutoDialer requires a Normally Closed relay setting for the logger 
and/or Remote Alarm (see AVD-45 manual). 

 

Figure 7: NC Remote Alarm/Logger/AutoDialer configuration 

Battery Installation and Test 

After the jumpers have been set and the zone inputs connected, the 
batteries can be installed in the battery holder. Please note the proper 
directions of the batteries as indicated in the holder. As the batteries 
are installed, the alarm will beep three times and the Zone LEDs and 
the RED battery status LED will flash three times. 

Reassemble Case 

Once the jumpers are set and the interconnect wires and batteries are 
installed, the back should be attached to the case with the four screws. 

Remote Alarm Wall Mount Instructions 

1.

 

Slide down wall mount bracket from rear of case to remove. 

2.

 

With countersunk holes facing you, position bracket in desired 
location and attach with (4) flat head screws provided. If 
attaching to a surface harder than drywall, it is recommended 
that you drill (4) small pilot holes first. 

3.

 

To attach Remote Alarm, slide it down onto the wall-mounted 
bracket. 

Remote Alarm Testing 

In order to test the ARA’s audio and visual indicators, press and hold 
the MUTE/TEST button for one second. All three LEDs should flash red 
three times as the audio indicator beeps three times. This operation, 
however, does not test the ARA’s alarm signal detection circuitry. To 
test the detection circuit, disconnect the alarm input wires. If the ARA is 
configured as Normally Closed, this will set off the alarm. If the ARA is 
configured as Normally Open, manually shunt (jumper) the inputs (1A 
to 1B and 2A to 2B) and the alarm will be set off. If the ARA fails this 
test, contact Onset Computer or an Onset authorized dealer. 

More extensive system testing may be possible by simulating an alarm 
condition at the monitoring unit which would initiate an alarm. For 
additional information, refer to the manual for the monitoring unit. 

Operating and Battery Status 

The battery-powered Remote Alarm shows its current operating and 
battery status with a bi-color LED. This LED, when flashing green, 
indicates normal operation and good batteries. When it is flashing red, 
and the beeper is chirping, the unit is still operating, but the batteries 
require replacement. If the LED is not flashing at all, the batteries are 
dead and the unit is not operating. As long as the LED is flashing green, 
the batteries still have enough capacity to signal an alarm condition 
continuously for at least three days. 

The Remote Alarm requires three AAA batteries. Use only fresh alkaline 
batteries. Batteries can be changed without disconnecting the alarm 
wires. See the Battery Installation and Test section for instructions. 

Alarm Indications 

If the Remote Alarm detects an alarm condition, the LED(s) for the 
appropriate zone(s) will flash and the beeper will sound simultaneously 
for about 0.5 seconds on and 1.5 seconds off. 

Beeper Mute 

If, during an alarm or low-battery condition, it is desired to mute the 
beeper, press the mute/test button for one second and the beeper will 
be silenced. If the alarm signal is removed, the audio indicator is 
automatically reset and will sound again on the next alarm condition. 

The mute function will also automatically reset approximately fifteen 
minutes after the mute button was last pushed or immediately if a new 
alarm condition has been detected.

 

The zone alarm LED(s) are not affected by the mute button and will 
continue to flash during an alarm. 

Отзывы: