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.