Watlow Series TM User Manual
Page 14

Wa t l o w S e r i e s C
• 1 2 •
C h a p t e r 4 U s e r I n t e r f a c e
F
C
LOAD
PUSH
TO SET
CV
LED Display:
Indicates
the set point.
PUSH TO SET Key:
Press and hold key to 
adjust the set point 
temperature. The new set 
point is entered 3 seconds 
after the knob stops 
moving. Set point will not 
change unless PUSH TO 
SET key is pressed. 
LOAD Indicator Light:
Lit
when output is energized.
F or C Indicator Light:
Lit
to indicate if unit is configured 
for degrees Fahrenheit or 
degrees Celsius.
Set Point Knob:
To increase
set point, turn knob clockwise. 
To decrease set point, turn 
knob counterclockwise. The 
new set point is entered 3 
seconds after the knob stops 
moving.
Variable Set Point, Push to Set
CV _ (1, 2, 5 or 6) _ _ _ _ _ _ _ _ _ _ C
Finger Tip Indent:
Insert
finger tip into indent for 
quick and easy set point 
changes.
Figure 12a — Variable 
Set Point, Push to Set In-
terface
F
C
LOAD
CV
PUSH TO
SET
LED Display:
Indicates
the set point.
PUSH TO SET Key:
Press and hold key to 
adjust the set point 
temperature. Set point will 
not change unless PUSH 
TO SET key is pressed. 
LOAD Indicator Light:
Lit
when output is energized.
F or C Indicator Light:
Lit
to indicate if unit is configured 
for degrees Fahrenheit or 
degrees Celsius.
Variable Set Point, Push to Set
CV _ (A, B, C or D) _ _ _ _ _ _ _ _ _ _ C
Increment and Decrement Keys: 
Press the Up-Arrow key to 
increase the set point. 
Press the Down-Arrow key to 
decrease the set point.
The new set point is entered 3 
seconds after the last key stroke.
Figure 12b — Variable 
Set Point, Push to Set In-
terface with Tactile Keys
To adjust the Calibration Offset on models with tactile 
keys, first hold down both the Increment and Decre-
ment keys for five seconds. The display will first show 
[`CAL] for five seconds, then it will display the Cali-
bration Offset value. Adjust the value with the Incre-
ment and Decrement keys (range: -30 to 30°). The new 
value will take effect three seconds after the last key 
stroke. The display will blink, then return to the pri-
mary display after five seconds.
To change the temperature units on models with 
tactile keys, first hold down both the Increment and 
Decrement keys for ten seconds. The display will show 
[F``C] for two seconds. Adjust the units with the In-
crement and Decrement keys. The new value will take 
effect three seconds after the last key stroke. The dis-
play will blink, then return to the primary display after 
five seconds. The set point value, process value and 
offset will automatically adjust to the new temperature 
scale.
