Molten Metal Pyrometer with RS485 Interface – LMI-2010
₹42,000 – ₹63,000
Prices are inclusive of Delivery Charges.
Product Description
LMI-2010 – Molten Metal Temperature Indicator
Please refer the Ordering Information table before placing your order.
Molten metal Temperature Indicator (LMI-2010-V2): Libratherm offers an improved version of LMI-2010, in which the user can select two types of measurement from a single instrument: Spot and Continuous Temperature Measurement of Ferrous and Non-Ferrous Molten Metals.
1) Spot measurement (SM) uses disposable thermocouple tips, where the disposable thermocouple tip is dipped into the molten metal for 3 to 5 seconds and then withdrawn.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. Once the measurement is over, the final reading is latched onto the display. Any error in measurement due to the thermocouple open condition is immediately detected and informed by activating the audio/visual alarm. This is a very common practice in the industry. The last measured value will remain latched on the display till the next measurement is performed.
LMI-2010 is designed to measure and display the molten metal temperature in very short intervals. The indicator is rugged, reliable, field-proven and very easy to operate. Users can select the desired thermocouple type and set other parameters using the front panel keyboard. The thermocouple input circuit is optically isolated from the main circuit to avoid the ground line and RFI/EMI interference during the measurement.
During measurement, the indicator ignores the slag temperature, and the Average or Plateau reading is determined using the advanced algorithm. The same is latched and displayed on the bright 7-segment 2” red LED. The latched readings are transmitted on two wire RS-485 buses for remote display and computer interface. The last 100 readings are stored in the built-in memory and can be recalled. Analogue retransmission of the Latched reading in isolated 4-20mA is also provided for remote measurement using the external device.
Added Features: LMI-2010 has the facility to work with single DIP Thermocouple and Multi DIP thermocouple TIPS. The system comes to READY mode every time the new TIP is connected to the Lance or when the same TIP is reused for multiple measurements.
2) Continuous measurement (CM) uses a permanent thermocouple installed inside the molten metal. The type of thermocouple and temperature measurement range entirely depends on the type of metal, such as Brass, Copper, Aluminum, Iron, etc. CM allows users to monitor the temperature online on local digital and large remote displays. In this method, event indications are not generated.
Large or Remote Display (LRU-2010): Libratherm also offers a 32-bit microcontroller-based remote display compatible with LMI-2010. This remote display model LRU-2010 captures the reading from LMI-2010 on an RS-485 2-wire bus, indicating the latched reading on a 4” or 8” large red 7-segment LED display. With a single LMI-2010-V2, 5 x LRU-2010 can be connected in a serial multi-drop configuration. This display works on
230VAC and can be mounted at a suitable height for distant viewing.
Lamp and Hooter Box (LLC-2010): For remote audio/visual indications – Libratherm offers this unit – which can be driven from the potential free contacts available from LMI-2010.
Key Features:
- 32-bit Microcontroller (ARM Processor)-based design
- 2-inch (45 mm) bright red 7-segment LED display
- Field-proven and time-tested measurement algorithm
- Accepts R, S, B type thermocouple tips
- Thermocouple circuit is Optically Isolated (new feature)
- User selectable unit of measurement °C/°F
- Spot measurement and Continuous measurement – user-selectable
- Built in memory of the last 100 readings
- Isolated 4-20mA linearized retransmission output
- Usable with Single DIP tip (SDT) and Multi DIP tips (MDT)
- Display of previous measurement reading till the new measurement starts
- Selectable Calibration facility with Cold Junction Compensation (CJC) and without CJC
- Interface with external 4-inch or 8-inch display over RS-485 bus
- Interface with external Lamp compartment using built-in 4 x relays
- Works on 90-250VAC wide AC supply
Technical Specifications
| Parameters | Description |
|---|---|
| Input | R, S and B type thermocouple (user selectable through front panel) Optically Isolated Input |
| Input Sampling time | 25 samples per second or 40 milliseconds per sample. |
| Range | Full positive range of the selected input |
| R and S type: 0 to 1768°C, B type: 0 to 182°C or | |
| R and S type: 32 to 3210o F, B type: 32 to 3300°F | |
| (Unit of measurement can be given as user selectable - OPTIONAL) | |
| Indicating Accuracy | Better than +/-0.2% of the range (Software Linearized) |
| Measurement Application | DIP(SPOT), Continuous, or Multi DIP temperature measurement. |
| Resolution | 1°C (factory set to UNIT °C) – UOM °F can be provided on request. |
| Cold Junction Compensation | Automatic using a built-in semiconductor sensor from 10°C to 60°C. Accuracy of +/-0.5°C in the range of 10 to 60°C. |
| Offset Correction | +/- 100oC in step of 1oC. |
| Display | 4-digit – 2” (45 mm character height) red seven-segment LED display |
| Measurement Time | 2 to 9 seconds (user-programmable) |
| Measurement Start Temperature | From 500°C up to the full range of the selected thermocouple (user-programmable) |
| Plateau Detection | 1 to 99 °C (user programmable) |
| LED indication | 13 front panel LEDs for various functions |
| Audio / Visual Alarm Indication | Provided for Thermocouple continuity, Measurement in progress, and Measurement Over, using the built-in lamps and speaker. |
| Retransmission Current Output | Linearized and Isolated 4-20mA output signal proportional to the measured temperature, RLmax = 500 ohms. 4-20mA range: For R/S TC 768°C to 1768°C. For B TC 820°C to 1820°C |
| Relay Output | Potential free relay changeover contacts for driving remote audio/visual indicator - LLC-2010. Relay contacts are rated for 5A @ 230VAC. |
| Data Storage | 100 measurement readings are stored in the internal memory, which can be recalled on demand. |
| Serial Communication | Serial data output over RS-485 – 2-wire for remote 4” / 8” display (LRU- 2010) or computer interface - baud rate 9600 bps. |
| Number of Remote Display | 1 to 10 nos. of remote display units (LRU-2010-4” or LRU-2010-8”) can be connected to a single LMI-2010V2. |
| Supply | 90 to 250VAC, 50/60Hz @ 15VA max. |
| Storage/Operating Conditions | Maximum temperature of 60oC@90% RH (Non-condensing) |
| Enclosure | Dust-free - Metallic powder-coated enclosure. |
| Panel Size | 350 (w) x 350 (h) x 200 (d) mm. (excluding mounting clamps) |
| Weight | 5.0 Kg (approx.) |
| Mounting | Wall mount keyholes or side clamps are provided |
Ordering Information
| Sr. No. | Model | Specifications | Part No. |
|---|---|---|---|
| 1.1 | LMI-2010-V2-PNL | Molten metal Temperature Indicator + Relay contacts for external Lamp box LLC-2010 | 3500-1 |
| 1.2 | LMI-2010-V2-PNL | Molten metal Temperature Indicator + Relay contacts for external Lamp box LLC-2010 + RS-485 interface for external LRU-2010-4 or LRU-2010-8 | 3500-2 |
| 1.3 | LMI-2010-V2-PNL | Molten metal Temperature Indicator + Relay contacts for external Lamp box LLC-2010 + RS-485 interface for external LRU-2010-4 or LRU-2010-8 + 4-20mA isolated retransmission output. | 3500-3 |
| 1.4 | LMI-2010-V2-PNL | Molten metal Temperature Indicator + Relay contacts for external Lamp box LLC-2010 + RS-485 interface for external LRU-2010-4 or LRU-2010-8 + Standard computer software and RS-485 to USB Converter. | 3500-4 |
| 1.5 | LMI-2010-PNL | Molten metal Temperature Indicator + Relay contacts for external Lamp box LLC-2010 + GSM modem for SMS alert facility. | 3500-5 |
