Detailed Product Description

LMI-2010: Libratherm offers micro controller based Molten Metal Temperature Indicator model LMI-2010, which is designed to measure accurately the temperature of ferrous and non ferrous molten metals. The measurement of this temperature is acritical process, since the expendable thermocouple is dipped for merely 3 to 4seconds and then withdrawn. In this short measurement time, the operator is guided through the measurement cycle by audio/visual alarms for thermocouple continuity, measurement in progress and measurement over.

Any error in measurement due to thermocouple open condition is immediately detected and informed by activating the audio/visual alarm.

LMI-2010 is indigenously designed to measure and display the molten metal temperature in very short time interval. The indicator is rugged, reliable, field proven and very easy to operate.  User  can select the desired type of thermocouple and also set other parameters using front panel key board. During measurement,the indicator ignores the  slag temperature and the Average or Plateau reading is determined using the advanced algorithm and the same is latched and displayed on the bright 7 segment 2 red Led display. The latched readings are transmitted on two wire RS485 bus for remote display and  computer interface.

LRU-2010: Libratherm also offers micro controller based remote display to be used in association with LMI-2010. The reading available from LMI-2010 on RS485 2 wire bus is

captured by this remote display model LRU-2010, which indicates the latched reading on 4 large red 7 segment LED display.

With single LMI-2010, maximum 3nodes of computers and 5 LRU-2010 can be connected in serial multi-drop configuration. This display works on 230VAC and can be mounted at a suitable height for distant viewing.

LLC-2010: For remote audio/visual indications Libratherm offers this unit which can be driven from the potential free contacts available from LMI-2010.

TECHNICAL SPECIFICATIONS (LMI - 2010):

Sensor Input	K, R, S and B type thermocouple (user selectable)
Range	Full positive range of the selected input (0 to 1820oC)
Accuracy	Within +/-0.1% of the range
Resolution	1 oC
Cold Junction Compensation	Automatic using built in sensor from 0oC to 50oC
Display	4 digit 2 seven segment red LED display
Measurement Time	2 to 9 seconds (user programmable)
Plateau Detection	1 to 99 oC (user programmable)
LED indication	13 front panel LEDs for various functions
Visual Alarm Indication	Provided for Thermocouple continuity, Measurement in progress, Measurement Over
Retransmission Output	4-20mA  proportional to the measured temperature,  Rlmax = 400 ohms
Relay Output	Potential free relay changeover contacts for driving remote audio/visual indicator - LLC-2010.
Serial Communication	RS485 2 wire for remote display and computer interface   (Using MODBUS RTU protocol)
Supply	180 to 250VAC, 50/60 Hz
Enclosure	Dust free - Metallic powder coated
Size	365 (w) x 265 (h) x 250 (d) mm.
Weight	8.5 Kg (approx)
Mounting	Wall mounting key holes or Can be placed on a flat platform.

TECHNICAL SPECIFICATIONS (LRU 2010):

Signal Input	2 wire RS485 serial output from LMI-2010 in MODBUS RTU protocol
Display	4 digit 4 seven segment red LED display
LED indication	2 front panel LEDs for RXD and TXD
Supply	180 to 250VAC, 50/60 Hz
Enclosure	Dust free Metallic powder coated
Size	440(w) x 290(h) x 170(d)mm.
Weight	10.0 Kg (approx)
Mounting	Wall mounting  key holes or can be placed on a flat platform.