Thermolator TW-1 and TW-2
UGH015/0100
TW-1 models control the process temperature based upon the
average of the temperatures recorded at the supply (to process)
and return (from process) thermocouples.
TW-2 models allow you to select how the unit will measure
and control the process temperature. The control point can be
selected as the supply, the return or the average of the the two
temperatures.
To select the control point source on TW-2 models:
Disconnect and lockout power to the unit.
Open the electrical enclosure.
Set dip switches 3 and
6 to the OFF position.
Set dip switch 5 to the
ON position.
Close the electrical enclosure and restore
power to the unit.
Press any button when the control displays
“Cnt Pt”.
The controller will
display “Sel CnP”
and flashes the LED
for the current con-
trol point.
Select a new control point using the Display
button.
Stop pressing the select button until the indicator light next
to the control point you want illuminates.
3-12
I
NSTALLATION
1
2
3
4
5
6
WARNING: Electric shock hazard
This equipment is powered by high voltage. Always
disconnect and lock out the main power source
before opening the unit or the electrical enclosure to
modify factory settings. Failure to disconnect and
lock out the main power source can result in severe
personal injury.
8 7 6 5 4 3 2 1
S
ELECTING THE
T
EMPERATURE
C
ONTROL
P
OINT
(TW-2
ONLY
)
7
NOTE:
All dip switch illustra-
tions in this manual show
switches 7 and 8 set to ON.
If you have an Isolated
Circuit model, these switch-
es should be set to OFF.
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Summary of Contents for Thermolater vacuTrac
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