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Section 3 Installation
Remote Temperature
Sensor
Multifunction Port
11 12 13 14 15
6 7 8 9 10
1 2 3 4 5
USB Port
Requirements
CAUTION
3-8
The remote temperature sensor on the rear of the immersion circulator re-
quires a 4-pin connector that must mate to a LEMO # ECP.1S.304.CLL. The
immersion circulator uses a 3 wire sensor, but a 4 wire sensor can be used
(pins 3 and 4 are interconnected in the control head). The pin-out is:
2
Pin 1 and 2 = Pt100 +
1
3 4
See Section 4 for instructions to enable the remote sensor.
AC 200s have a multifunction port on the rear of the immersion circulator
that is used in conjunction with an optional accessory box to select and acti-
vate additional features. See Section 4 for additional information.
AC 200 only. If your computer does not automatically recognize the USB
driver, installation instructions are provided in the Appendix.
Tubing
Ensure none of the tubing comes in contact with the power cord.
Tubing is normally used to connect the pump to an external application.
Note The maximum allowable length of tube depends largely on the size,
form and material of the external vessel. The length of tube and its diameter,
combined with the circulating capacity, have a large affect on the temperature
stability. Whenever possible, use a wider tube diameter and place the
application as close as possible to the circulator.
Extreme operating temperatures will lead to extreme temperatures on
the tube surface, this is even more critical with metal nozzles.
• the required tube material depends on the heat transfer liquid used
• tubes must not be folded or bent
• after prolonged use, tubes may become brittle or they may get very
soft, check them on a regular basis and replace if necessary
• secure all tube connections using clamps
When using the internal bath only, the plumbing connections can be closed
with the supplied plate and union nuts.
Pin 3 and 4 = Pt100 -
Thermo Scientific
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