CL-200A Manual, Rev. 120523
10
SETUP
The
CL-200A
has been designed primarily to drive Warner’s expanding line of Peltier-driven
heating and cooling devices. However, the instrument is also capable of supplying power to Warner’s
line of resistive heaters (Series 20 heater platforms, in-line solution heaters, etc.) by using the
ACC-1
adapter cable at the peripheral device output (Item W). The instrument will auto-detect when a
resistive-only heating device has been attached and will disable cooling commands.
Warner Peltier Driven Systems
The set up for the
CL-200A
is straightforward when used with a Peltier driven heater/cooler.
First connect the cable from the heater/cooler peripheral device into the 15-pin D-connector on the
back of the
CL-200A
. Then connect the
TA-29
thermistor (supplied with the heater/cooler) to the
MONITOR TEMP IN
BNC (Item F).
If using the
SC-20
in-line solution heater/cooler, set the
CL-200A
loop speed to
medium
. If using
a different device, then set the loop speed to the setting specified in that devices user’s manual, or
initially set the loop speed to
fast
and adjust as necessary to achieve stable performance.
If using external control inputs, make connections from your
command output
(e.g., analog out
on the A/D board or a power supply) to either the
EXT TEMP SET
(Item U) or
EXT VOLT SET
(Item T)
BNC’s on the rear panel.
Operating With Other Equipment
The
CL-200A
can be used to power other Warner equipment such as the
SH-27B
and
SF-28
inline solution heaters. In addition, the controller can be used as an independent device to power
third-party equipment so long as the following considerations are met.
Warner Resistive Heating Systems
Use of the
CL-200A
to power Warner resistive heaters is permitted if used in conjunction
with the
ACC-1
adapter cable. When the
CL-200A
is connected to a resistive device, all
command inputs (auto and manual modes for both internal and external commands) are
functional with the exception that cooling commands are not executed.
Third-party Equipment
The
CL-200A
heater controller will work with many other heating devices if used in
conjunction with the
ACC-1
adapter cable. To obtain maximum heating power, the resistance of
the third-party heating element should be between 8-12
. However, any element that works at
a maximum of 15 V and 2.4 A will also work with the
CL-200A
.
Thermistor Considerations
The
CL-200A
heater controller is designed to accommodate Unical NTC thermistors from
Thermometrics (Edison, New Jersey). This family of thermistors can be interchanged without
recalibration of the instrument. The nominal resistance of a Unical NTC thermistor is 10.0 k
at 25
C. Other NTC thermistors may be used with the
CL-200A
if the nominal resistance is also
10.0 k
at 25
C.
Warner
Instruments
A Harvard Apparatus Company
