Reno A&E T-400 Series Operating Instructions

IV. Detect / Fail Indicators:
The Model T-400 detector has a single two color (green / red) light emitting diode
(LED) per channel to indicate a CALL output and/or the status of any current or
prior loop failure conditions. A continuous ON (green) state indicates a CALL
output. A continuous ON (red) state indicates that a current open loop failure
condition or an inductance change condition of greater than +25% exists. This
indication also generates a CALL output. A one Hz (red) flash rate indicates that a
current shorted loop failure condition or an inductance change condition of greater
than -25% exists. This indication also generates a CALL output. A flash rate of
three 50 millisecond (red) flashes per second indicates a prior loop failure
condition. A flash rate of three 50 millisecond (red) flashes per second followed by
a single 750 millisecond (green) flash indicates a prior loop failure condition and a
current CALL output (detect state).
If any channel has the audible detect feature activated, that channel's Detect / Fail
LED will be illuminated in an orange state for any CALL output condition.
Detect / Fail LED
Off
Solid ON (Green)
Solid ON (Orange)
Solid ON (Red)
Inductance change condition of greater than +25% exists
One Hz flash
rate (Red)
(50% Duty Cycle)
Inductance change condition of greater than -25% exists
Three 50 ms (Red)
Loop Failure condition occurred but no longer exists
flashes per second
Three 50 ms (Red)
Loop Failure condition occurred but no longer exists
flashes per second
followed by a single
750 ms (Green) flash
Three 50 ms (Red)
Loop Failure condition occurred but no longer exists,
flashes per second
followed by a single
750 ms (Orange)
flash
Model T-400 Operating Instructions 12-18-03 (551-2003-00).doc
Meaning
No Detect (No CALL Output)
Detect (CALL Output)
Audible Detect Signal Activated,
Detect (CALL Output)
Open Loop Failure
or
Shorted Loop Failure
or
and
Detect (CALL Output)
Audible Detect Signal Activated
and
Detect (CALL Output)
4
Reno A & E P/N 551-2003-00
Engineering Excellence!
O P E R A T I N G
Model T-400 Series
FOUR-CHANNEL
DIP SWITCH PROGRAMMABLE
LOOP DETECTOR
I. General:
The Model T-400 is a scanning, four-channel, shelf mount loop detector. Once the
detector is connected to an appropriately wired harness, it will begin to operate.
The detector automatically tunes itself and is operational within two seconds after
application of power or after being reset. Full sensitivity and hold time require
approximately 30 seconds of operation. The detector is fully self-compensating for
environmental changes and loop drift over the full temperature range and the entire
loop inductance range. The Model T-400 is available with solid state or relay
outputs.
The operation of each channel is independent and is programmed using one of four,
front panel mounted, six-position DIP switches. Each channel has a single, dual
color (green / red) Detect / Fail LED indicator. The LED provides an indication of
the channel's output state and loop failure conditions. OUTPUT STATE conditions
are indicated when the Detect / Fail LED is illuminated in a green state. LOOP
FAILURE conditions are indicated when the Detect / Fail LED is illuminated in a
red state. The Model T-400 also has a TEST mode that verifies proper operation of
the outputs, LED indicators, DIP switches, and loop-oscillator circuitry.
II. Operating Controls:
i. Front Panel Mounted Programming DIP Switches:
The four, six-position DIP switches located on the front panel that are labeled 1,
2, 3, and 4 affect each channel independently. To turn one of these DIP
switches ON, push the switch to the left.
SW ON
4
SENSE
2
7 Sensitivity Levels plus OFF:
LEVEL
1
PRES PULS
Presence or Pulse Mode
1
FREQ
4 Frequency Selections:
2
Reno A & E
4655 Aircenter Circle
Reno, NV 89502-5948 USA
Telephone: (775) 826-2020
Fax: (775) 826-9191
Website: www.renoae.com
E-mail: contact@renoae.com
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