Watlow Series TM - Manual (Page 13)

Wa t l o w S e r i e s C • 1 1 • C h a p t e r 4 U s e r I n t e r f a c e
PROCESS
F
C
LOAD
C V
CV
LED Display: Indicates set point,
until the PROCESS key is pressed.
Process value (actual temperature)
is displayed until the PROCESS key
is released.
PROCESS Key: Press and hold
this key to display process
(actual temperature) value. Set
point is not adjustable until key
is released.
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. Set point will not
change while the PROCESS
key is pressed.
Variable Set Point, Push for Process
CV _ (1, 2, 5 or 6) _ _ _ _ _ _ _ _ _ _ B
Finger Tip Indent: Insert
finger tip into indent for
quick and easy set point
changes.
Figure 11a —
Variable Set Point,
Push for Process
Interface
F
C
LOAD
CV
PROCESS
LED Display: Indicates set point,
until the PROCESS key is pressed.
Process value (actual temperature)
is displayed until the PROCESS key
is released.
PROCESS Key: Press and hold
this key to display process
(actual temperature) value. Set
point is not adjustable until key
is released.
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 for Process
CV _ (A, B, C or D) _ _ _ _ _ _ _ _ _ _ B
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.
The set point will not change while
the PROCESS key is pressed.
Figure 11b —
Variable Set Point,
Push for Process
Interface with Tac-
tile 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.