FEATURES
Digital Display for Parameter Setting and Monitoring
High Output Power for TEC: 12V20A
High Efficiency: >98%
No Heat Sink Required
Penal Mounting Design
Over Current Protected
Communication Function
Compact Size: 152.6mm(L)×76.0mm(W)×20.4mm(H)

DESCRIPTION
ATFC106D is designed for regulating an enclosed chamber
temperature by driving a TEC array and a fan array. In
addition, upon detecting the chamber temperature goes beyond
the safety windows, see the table below, it cuts off an AC
power switch by sending the relay control signal. The
ATFC106D is a digitally controlled TEC/fan assembly
controller for driving TEC assemblies with fans and
monitoring the working status at the same time. It allows
setting the parameters of the set-point temperature window, the
safety temperature window, monitoring the heat sink hot side
temperature, heat sink cold side temperature, and the chamber
temperature, as shown in Figure 1. The controller integrates a
digital display, a TEC controller, a fan controller, and
temperature controlled relay control output into one assembly,
see Figure 3.
In the controller, there are 2 control loops: TEC and Fan. The
former has a bi-directional output for achieving both heating
and cooling effects, the latter switches the fan on and off.
As shown in Figure 4, a digital display is used to show these
temperatures: Safety High Temperature, Safety Low
Temperature, Cool On Temperature, Heat On
Temperature, Satisfied, TEC Outside Temperature, TEC
Inside Temperature and Chamber Temperature. There are
8 LEDs indicating which of these temperatures is shown in
the display.
The Safety High Temperature, T1, is the temperature point
on which the chamber air temperature gets too high that the
load control relay is turned off, but the TECs keep cooling
down the chamber air.
The Cool On Temperature, T2, is the temperature point on
which triggers the TECs to start cooling down the chamber
air.
The Heat On Temperature, T3, is the temperature point on
which triggers the TECs to start heating up the chamber air.
The Safety Low Temperature, T4, is the temperature point
on which the chamber air temperature gets too low that the
load control relay is turned off, but the TECs keeps heating
up the chamber air. There is an option that when the chamber
temperature gets too low, the load control relay is not turned
off so that the load is still on and works as a heating element,
helping increase the chamber temperature.
The LED indication logic for the above 4 temperatures is
shown in Table 1.