LTC44IR - Controller LYYT - Free user manual and instructions
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| Product Type | Controller |
| Brand | LYYT |
| Model Number | LTC44IR |
| Dimensions (W x H x D) | 95 mm x 55 mm x 25 mm |
| Weight | 120 g |
| Power Supply | 100–240 V AC, 50/60 Hz |
| Display | 7-segment LED display |
| Sensor Type | Infrared temperature sensor |
| Measurement Range | -50 °C to 500 °C |
| Control Mode | PID control |
| Output Relay | 1 channel, 10 A max load |
| Alarm Function | High/low temperature alarm |
| Communication | RS485 / Modbus (optional) |
| Protection Rating | IP65 (front panel) |
| Operating Temperature | 0 °C to 50 °C |
| Storage Temperature | -20 °C to 60 °C |
| Maintenance | Wipe with a dry cloth; avoid water |
| Safety Features | Over-voltage protection, reverse polarity protection |
| Spare Parts | Replacement sensors and relays |
| Repairability | Modular design for easy repair |
| Included Accessories | Main unit, sensor, mounting brackets, user manual |
| Certifications | CE, RoHS |
Frequently Asked Questions - LTC44IR LYYT
How do I set the target temperature on the LTC44IR?
Press the SET key to enter the set value mode, then use the ▲ and ▼ keys to adjust the temperature. Press SET again to confirm. The controller will automatically maintain the target temperature using PID control.
What is the purpose of the infrared sensor?
The built-in infrared sensor measures the surface temperature of an object without contact. This allows the controller to regulate heating or cooling devices based on the actual object temperature. Ensure the sensor is aimed at the target for accurate readings.
How can I calibrate the temperature reading?
To calibrate, access the calibration menu by holding SET for 5 seconds. Use the offset setting to adjust the displayed value to match a reference thermometer. Recalibrate periodically for best accuracy.
What does the alarm indicator mean?
The alarm LED and buzzer activate when the measured temperature exceeds the high alarm limit or falls below the low alarm limit. Check the process and adjust alarm setpoints in the alarm settings menu.
How do I wire the LTC44IR controller?
Connect the power supply to the LTC and N terminals. The relay output is on the COM and NO terminals for switching external loads. The sensor is connected to a dedicated port. Follow the wiring diagram in the user manual.
Is the LTC44IR suitable for outdoor use?
The front panel is IP65 rated, offering protection against dust and water jets. However, the rear terminals are not sealed. Install the controller inside a weatherproof enclosure for outdoor applications.
Can this controller drive a 220V heater directly?
Yes, the built-in relay can switch loads up to 10 A at 250 V AC. For larger loads, use a contactor or solid-state relay. Always respect the maximum ratings to avoid damage.
How do I reset the controller to factory defaults?
Turn off the power, then press and hold the SET and ▲ keys simultaneously while reapplying power. The display will show CLr. Release the keys to reset all parameters to factory defaults.
How should I clean and maintain the device?
Disconnect the power before cleaning. Use a soft, dry cloth to wipe the front panel. Do not use solvents or immerse the device in water. Periodically check the sensor lens for dust and clean with a cotton swab.
Where can I download the full user manual?
The complete user manual is available for free in PDF format on the notice-facile.com website. Navigate to the LYYT LTC44IR page and click the download button. A translated version can also be requested by email.
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USER MANUAL LTC44IR LYYT
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Product information
Brand : LYYT
Model : LTC44IR
Category : Controller