A.J. Antunes & Co TTC 8051420110 - Manual (Page 3)

A. J. ANTUNES & CO. www.ajantunes.com 180 Kehoe Blvd., Carol Stream, Illinois 60188
1-630-784-1000 Fax: 630-784-1651 Page 3 of 4 P/N 1011091 06/10
1-800-253-2991
Assembly
1. Remove bracket and insulator from unit.
2. Place TTC unit through panel cut-out.
3. Place insulator on TTC unit and attach bracket.
NOTE: Bracket is not to touch metal surface of panel.
Bracket must rest on insulator. Any other method of
mounting will cause damage to the internal operation of
the TTC unit.
Sold State Replay Output
When the temperature seen by the thermocouple
is above the set point, there will not be any voltage
between - and + terminals. If the temperature seen by the
thermocouple is below the set point, there will be 12‒16
VDC output. This output is capable of providing 30 mA.
If an “open” thermocouple condition occurs, the voltages
between - and + terminals will be zero.
Set Point Calibration and Output States
If transformers other than those supplied by Antunes
Controls are used, the transformer colors/leads and
power capabilities may not be the same.
If field calibration is required, a two-point calibration
with a millivolt generator can be used. Allow 30 minutes
for the unit to stabilize before calibrating. Calibrate the
low reading by adjusting the zero pot. Enter the second
calibration higher than the first point and adjust the span.
Recall these two points if needed.
When the button on the lower left of the unit is pushed in
and held, the set point is displayed. As long as the button
is held in, the set point is displayed. When the button is
out, the temperature at the thermocouple is displayed.
The knob on the lower right is used to change the set
point. Turn the knob clockwise to increase the set point.
Turn the knob counter clockwise to decrease the set
point.
The diagram above shows the output states of the
controller internal relay when the temperature as seen by
the thermocouple is above or below the set point. Make
the connection accordingly observing the power rating
of the contacts. The unit will read “EEE” for over range
inputs. If the thermocouple “opens”, the internal relay will
go its “not operated” state.
NC
NC
NC
Temperature over
setpoint, relay not
operated
Temperature under
setpoint, relay operated
NC
NC
NC
TTC Installation Information