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TWO WIRE TEMPERATURE TRANSMITTERS

Product Details:

Place of Origin	Maharashtra, India
Brand Name	LIBRATHERM
Model Number	LTX-3000
Usage	Industrial
Theory	Temperature Transmitter

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Detailed Product Description

MODEL WISE DESCRIPTIONS:

LTX-3000/H	Two Wire Temperature Transmitter (Head Mounted)
LTX-3000/D	Two Wire Temperature Transmitter (DIN Rail Mounted) LTX-3000/DI for isolated version
LTX-3000/W	Two Wire Temperature Transmitter (Weather proof enclosure field mounted) LTX-3000/ WI for isolated version.
LTX-3000/FLP	Two Wire Temperature Transmitter (Flame Proof Head)

PRODUCT DESCRIPTION:

Libratherm offers Miniature Head Mount Two wire Temperature Transmitter Model LTX-3000/H, which accepts (Pt-100) or thermocouple or variable resistance signal as the input and provides output of(4-20) mA proportional to mV or resistance values. These transmitters are extensively used to minimize the effect of electrical noise and to eliminate the need of long runs of special compensating and three wire cables since ordinary pair of copper wires can easily be used to transmit the measured temperature without the drop or loss of signal. In addition, transmitting the current signal is more advantageous, since it is less susceptible to industrial RFI/EMI noise compared to the voltage signal. These transmitters are linearly calibrated to the signal produced by a thermocouple or RTD sensors and not to the actual temperature.

LTX-3000require no separate power supply as it is powered by current drawn from the current loop itself and is thus intrinsically safe when used with appropriate barriers. It is very compact, economically priced and can be directly mounted inside standard heads of the thermocouple or RTD sensors. It can also be easily fitted inside the flame proof / weather proof head or junction box. It is available for different thermocouples, RTD (Pt-100)duly calibrated for required temperature range with ZERO and SPAN adjustments for on site calibration. LTX-3000 is available in the standard size of 44mm OD and 26mm height (with the terminals) and center to centre mounting hole dimension of 33.0 mm so that it fits easily into the standard head.

The Transmitter are also available in DIN Rail compatible modules Model LTX-3000/D,in weatherproof enclosure Model LTX-3000/W, and in flameproof Model LTX-3000/FLP. The Galavanically isolated versions are also available in weatherproof enclosure as the Model LTX-3000/DI and LTX-3000/WI, where input and output are optically isolated.

TECHNICAL SPECIFICATIONS:

Input	Thermocouple, mV, RTD (Pt-100) or resistance signal from displacement, position or level sensor.
Range	Subject to specified input (User should specify the required range).
Output	(4-20)mA, two wire and loop powered (calibrated linearly to the input signal).
Options for Output	a) 3 wire version with (4-20) mA on 2mwire loop with separate supply ground can also be provided. b) 4 wire version with 2 wire for DC supply and 2 wire for (4-20) mA can also be provided.
Accuracy	± 0.5 % of the calibrated span or better including linearity, Hysterisis, and compensation error.
Calibration	On site using ZERO / SPAN presets. Zero Adjustment - +/-25% of the range (20 Turns). Span Adjustment - +/- 25% of the range (20 Turns).
Loop supply	24VDC nominal (12 to 36)VDC.
Loop Status	The built in Red LED indicates the continuity status of the loop.
Loop Resistance	600 Ohms @ 24VDC (loop supply dependent).
Max. Load Resistance	RL Max = (Vs-12V) / 20 mA.
Isolation	Input and Output are Galvanically isolated (2KV) for isolated models (LTX-3000/DI and LTX-3000/WI)
Burn Out Detection	The output shall saturate > 20mA (max. 25mA @ 24VDC loop supply)
Operating Temp.	10 ^oC - 70^oC
Mounting	Standard or Flameproof head, 35 mm DIN rail or on-field in weatherproof enclosure.
Size	44 Dia x 26 mm. Mounting holes at 33 mm on dia. (LTX-3000/H) 22 x 75 x 100 mm (LTX-3000/D) and (LTX-3000/DI) 80 x 80 x 57 mm (LTX-3000/W) and (LTX-3000/WI)