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home products Temperature And Process Indicator Controller TEMPERATURE INDICATOR / CONTROLLER (Digital Linearized)

TEMPERATURE INDICATOR / CONTROLLER (Digital Linearized)

Product Details:

Place of Origin	India
Brand Name	LIBRATHERM
Model Number	Given Below
Usage	Industrial
Theory	Temperature Controller

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Detailed Product Description

MODEL WISE DESCRIPTIONS:

Sr.No.		Model	Product Description	Size (mm.)
2.1		DLI-12	Temperature Indicator 0.5" Display	96 x 96 x 160
2.2		DLI-1000	Temperature Indicator 1" Display	192 x 96 x 160
2.3		DLI-2000	Temperature Indicator 2" Display	192 x 96 x 160
2.4		DLI-4000	Temperature Indicator 4" Display (wall mounting)	500 x 250 x 150
2.5		MLI-X	Multi-point Temperature Indicator (X=2,4,6,8,10) (Using rotary selector switch)	96 x 96 x 160
	2.5.1	MLI-2	2 point indicator
	2.5.2	MLI-4	4 point indicator
	2.5.3	MLI-6	6 point indicator
	2.5.4	MLI-8	8 point indicator
	2.5.5	MLI-10	10 point indicator
2.6		DLC-301	Single Set Point Temp. Controller (4 digit T/W setting)	96 x 96 x 160
2.7		DSL-12	Two Set Point Controller ( 4 digit T/W setting for each set point)	96 x 96 x 160

PRODUCT DESCRIPTIONS:

Thermocouple sensors generating emf/mV and RTD sensors generating the change in resistance value with respect to the change in temperature does not have non linear characteristic, hence to indicate the temperature within the accuracy of 0.1oC or 1oC throughout the measurable range, the need arises to linearize these non linear curves.

Libratherm offers various models of Linearized Temperature Indicator / Controller for accurate indication of temperature within the accuracy of ± 1^oC or ± 0.1^oC in spite of non-linear behavior of the thermocouple and RTD (Pt-100) sensors. The Linearized indication is achieved by software linearization technique using 12bit ADC and high-density memory, where the datas are stored in. Along with thedigital Linearized indications, single or dual set point control is alsoavailable. The Control action may be ON/OFF (through Relay/SSR/Triac). One of the application areas of this controller is to use it as the safety controller (or police protection) along with the microprocessor based PID or RAMP/SOAK program controller, where the indicating accuracies of both are matched without any ambiguity.

TECHNICAL SPECIFICATIONS:

Input	Thermocouple B, C, D, E, J, K, R, S, T, or RTD (Pt 100) {Any one to be specified}
Range	Full range of the specified input.
Accuracy	± 1 ^oC for thermocouple and ± 0.1 ^oC for RTD input.
Display	4 digit Red 7-segment LED display. (Display size is model dependent)
CJC	Automatic cold junction compensation using built in temperature sensor.
Set point	Adjustable using front panel push type coded wheels (Thumb wheels)
Control action	ON / OFF control with ± 1 ^oC Hysterisis Fail safe operation in case of sensor failure.
Control output	Potential free relay change over contacts and SSR driver (0 to 10VDC pulse @ 30mA) or Triac /AC SSR and SSR driver per set Point (DLC-301, DSL-12). Relay contacts and AC SSR are rated for 6A @ 230VAC.
Hysterisis	±1^oC for ON/OFF action (for 1^oC resolution controller) ±0.1^oC for ON/OFF action (for 0.1^oC resolution controller)
Output Indication	The front panel LEDs marked OUT Or OUT1 and OUT2
Supply Voltage	230VAC / 110 VAC ± 10% (5VA), 50/60Hz or 24VDC @ 250mA
Size	96 x 96 x 160 mm., 192 x 96 x 160 mm and as per the table given above.
Enclosure	Metallic duly powder coated.