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 Tel: (888) 552-6467               

Fax: (800) 316-4515               www.tnb.com

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02/15 750.1593 Rev.  B

Manual Testing (Self-Powered Models)

Operate the magnetic “test switch” by holding the provided magnet
underneath the unit where indicated on the frame.  The AC pilot lamp will
go out, the legend will flicker, but remain lit.  Remove the magnet.  The
AC pilot light will turn on, the legend will flicker but remain lit.

Automatic testing and diagnostics

A built in micro-controller will self-test the unit and identify display failures
of the unit on a monthly basis and identifies as well as displays failures of
the electrical components: battery, battery charger and LEDs.

Self-test

The self-test is performed every 30 days for 1 minute, every 6
months for 30 minutes, and annually for 90 minutes.

Diagnostic function

The diagnostic function uses a bi-color pilot LED indicator. Service is
required if the LED turns red indicating that an alarm condition is
detected (see Figure 6).

Maintenance (All Models)

None required. For battery-operated units: if AC supply to the unit is to
be disconnected for 2 months or more, the battery must be
disconnected.

Note

(Nickel-Cadmium) batteries are shipped discharged and may

require 10 minutes of connection to AC supply before start-up test
procedure, and 96 hours to reach full charge.

o

Green

Steady On

AC On

-o

Green

One Blink

In Test

o

Red

Steady On

Battery Disconnect

-o

Red

One Blink

Battery Failure

o-o

Red

Two Blinks

Charger Failure

o-o-o-o

Red

Four Blinks

LED Strip Failure

Figure 6

Diagnostic

indicator

AC Pilot light/

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