Toxalert Tox-CO/ANA - Manual (Page 4)

Wire the 24 VAC to the terminal strip (See figure # 1).
If multiple units are to be wired to the same 24 VAC
transformer, use a certain color for L1 and a different
color for L2 (see figure #3). BE CERTAIN THAT ALL
UNITS SHARING POWER ARE CONNECTED
SO THAT THE L1 OF ALL UNITS ARE IN COM-
MON, AND ALL L2’S ARE IN COMMON, AND
THAT NONE ARE CROSS WIRED. If any are
crossed, there will be damage in one or more units.
Wire the 4 to 20 mA signal output to the controller as
marked on the terminal strip label (See figures # 1 & 2).
Place the cover onto the hinges of the base. Next con-
nector J2 must be plugged onto the pins along the top
of the electronics board. CAUTION - it is best if the
24 VAC power is turned off until the plug is positioned
on the pins. However, there may be times when it is
necessary to connect/disconnect this plug with the
power on. DO THIS ONLY IF THE PLUG IS CARE-
FULLY LINED UP ON THE PINS BEFORE ANY
PINS ARE ENGAGED. Failure to do so may result
in unit damage.
Apply the 24 VAC, and the +5 and +15 VDC red indi-
cators inside of the door will illuminate, and after about
1 second, the green light on the front of the door will
start flashing. The flashing of the green light indicates
that the unit is working normally. If the green light does
not illuminate, or if the light stays on steady (not flash-
ing) the unit is not working correctly, or the micropro-
cessor has determined that the gas sensor and/or tem-
perature sensor are defective. Contact the factory for
information.
If the sensor has been exposed to the environment
(i.e. not sealed air tight) during the un-powered pe-
riod, it may take time for the sensor to burn off accu-
mulated impurities. During this phase, the gas reading
may be higher than normal. The Tox-CO/ANA pro-
duces a new reading of the gas concentration every
two and one half minutes.
Scale the controller for 4 mA signal equal to 0 PPM
and 20 mA signal equal to upper end of sensor range
(100, 200 or 400 PPM CO.)
6.)
7.)
9.)
10.)
11.)
8.)
Part Number Description
ToxCO/1/M/A 0-400ppm range
ToxCO/1/M/B 0-100ppm range
ToxCO/1/M/C 0-200ppm range
ToxCO/1/N/A 0-400ppm range with LCD display
ToxCO/1/N/B 0-100ppm range with LCD display
ToxCO/1/N/C 0-200ppm range with LCD display
TOXALERT INTERNATIONAL, INC., P.O. BOX 159, MOUND, MINNESOTA 55364 (952) 472-4541 FAX (952) 472-4960
Visit our website at www. toxalert. com
ORDERING INFORMATION
TOX-CO/ANA Rev.12/04
FIGURE #3