DL 2685

Temperature Control System

DL 2685

Module DL 2685 represents a process for the control of the temperature, suitable for analyzing continuous and discontinuous closed loop control systems.
A halogen lamp represents the heating element; a PTC sensor provides the feedback signal; a fan and a shutter valve allow, besides the reaching of a uniform temperature within given safety limits, also the insertion of noise variables.

Technical features

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	Power supply: +15 V ; 0 V ; -15 V
	Max. temperature: 100 °C
	Temperature for the intervention of the bimetallic safety switch: 90 ....100 °C
	Feedback signal:
		2 mA / 10 °C
		1 V / 10 °C
	Apparent dead time T_U: about 10 s
	Compensation time T_G: about 120 s

Description

1.	Halogen lamp (12 V)
2.	Terminal for the supply of the halogen lamp (controlling variable y)
3.	PTC sensor
4.	Temperature/current and/or temperature/voltage transducer
5.	Switch for the selection of the operating mode of transducer 5
6.	Output terminals for the controlled variable (x)
7.	Transparent channel
8.	Electric motor of the fan
9.	Potentiometer for setting the power of electro-fan 8 (noise variable Z1)
10.	Manual control shutter valve (noise variable Z2)
11.	Safety bimetallic switch