24
CT-500 Instruction Manual
Custom Temperature Selection
Use this procedure to set the CT-500 to a temperature not already indicated on the pre-set dial.
1.
Turn the
T - SELECT
dial to the temperature closest to your desired temperature. If the
temperature is above the current bath temperature, the CT-500 will begin heating and the
HEAT
LED will light.
2.
Move the
TA - SELECT
switch to the right (the
VARIABLE
position).
To heat the bath more rapidly, turn on the
PREHEAT
(
PH
) switch. If the target temperature is below
80 °C, turn the
PH
switch off when the desired temperature is reached. For temperatures above
80 °C, keep the
PH
switch ON to maintain temperature control. When the
PH
switch has been
turned on, the
PH
-
HEAT
LED will light.
When the bath temperature is approximately at the temperature selected with the
T - SELECT
switch, the LED above the
TA
controls will start to blink as the heater duty cycle is automatically
adjusted to stabilize temperature.
1.
Release the lock on the
TA - VARIABLE
dial.
2.
Read the thermometer in the CT-500 bath to determine the actual temperature of the bath.
Make sure that both the thermometer and the bath temperature have stabilized before taking a
reading.
3.
Turn the
TA - VARIABLE
dial to adjust the temperature. Turn the dial clockwise
to increase the
bath temperature. Turn the dial counter-clockwise
to decrease the bath temperature. After
each adjustment, allow several minutes for the bath temperature to stabilize.
4.
When the desired temperature has been reached, re-lock the
TA - VARIABLE
dial.
After the bath has reached the desired temperature, set the
HIGH TEMPERATURE LIMIT CONTROL
(
LC
). This will prevent the bath from overheating if a malfunction occurs.
Adjusting the High Temperature Limit Control
During this procedure, the temperature of the bath may change slightly, but will quickly recover
1.
Using a screwdriver, slowly turn the
LC - TEMPERATURE ADJUST
control counterclockwise until
the OVER TEMP message lights up on the
LC - PUSH TO RESET
button.
2.
Turn the control clockwise approximately ¼ to ½ turn.
3.
Push the
LC - PUSH TO RESET
button. If the bath doesn't recover, repeat step 2 and try again.
Summary of Contents for CT-500
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