CL-200A Manual, Rev. 120523
8
internal
, and the
COOLING MODE SWITCH
(Item C) is set to
manual
. Set value can be read from
the
METER
(Item B) in the
output volts
position.
Peltier Limit LED (Item L)
This option functions only when the
CL-200A
is used with an
SC-20
Dual In-line Solution
Heater/Cooler. The
RED
LED is
lit
when the temperature of the Peltier device within the
SC-20
exceeds its operational limits. Activation of this circuit automatically sets the output voltage of
the
CL-200A
to
0 V
.
Freeze Alert LED (Item M)
This option functions only when the
CL-200A
is used with an
SC-20
Dual In-line Solution
Heater/Cooler. The
BLUE
LED
is
lit
when the Peltier device within the
SC-20
approaches 0°C.
Activation of this circuit is informative only and will not alter any instrument setting.
Heat / Cool LED’s (Item N)
RED
and
BLUE
LED
’
S
indicate
heating
or
cooling
power applied to the Peltier device.
Current Limit LED (Item O)
This indicator light informs the user that the channel has reached the maximum current
output of 5 Amperes. This indicator is informative only, and will not alter the function or
settings of the device.
Feedback Thermistor Selector Switch (Item R)
This switch can be set to select the thermistor that will be used as the control point for the
feedback regulation of set temperature.
Thermistor Open LED (Item S)
This LED indicator will signify an open thermistor circuit (broken thermistor wire).
Warner
Instruments
A Harvard Apparatus Company
