PT-7LD - Thermometer OPTEX - Free user manual and instructions
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| Product Type | Infrared Thermometer |
| Brand | Optex |
| Model | PT-7LD |
| Measurement Range | -50°C to 550°C (-58°F to 1022°F) |
| Accuracy | ±1% of reading or ±1°C (whichever is greater) |
| Resolution | 0.1°C / 0.1°F |
| Response Time | < 1 second |
| Distance to Spot Ratio | 12:1 |
| Emissivity | 0.95 (fixed) |
| Display | LCD with backlight |
| Laser Pointer | Yes, class II |
| Data Hold | Yes |
| Max/Min Measurement | Yes |
| Auto Power Off | Yes, after 15 seconds |
| Power Supply | 9V battery (6F22 type) |
| Dimensions | 150 x 75 x 40 mm |
| Weight | 150 g (with battery) |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to 60°C |
| Cleaning | Wipe lens with soft, dry cloth; clean housing with damp cloth |
| Safety | Do not point laser at eyes; keep away from children |
| Repairability | Battery replacement only; no user-serviceable parts |
| Included Accessories | Battery, user manual |
Frequently Asked Questions - PT-7LD OPTEX
How do I switch between Celsius and Fahrenheit?
Press and hold the MODE button for 3 seconds until the unit indicator flashes, then press the UP or DOWN button to select °C or °F. Wait 5 seconds to confirm.
How do I change the battery?
Slide the battery cover off the handle, remove the old 9V battery, and insert a new one with correct polarity (+/-). Replace the cover until it clicks.
What is the measuring range of the PT-7LD?
The temperature range is -50°C to 550°C (-58°F to 1022°F). It is suitable for industrial surface measurements.
How do I clean the lens?
Use a soft, lint-free cloth or a cotton swab slightly moistened with water or alcohol. Gently wipe the lens in a circular motion. Do not use abrasive cleaners.
What does the laser pointer do?
The laser pointer helps you aim at the target. It is a Class II laser and safe with normal use. Avoid direct eye exposure.
How to measure temperature correctly?
Hold the thermometer about 12 cm from the target for every 1 cm of spot diameter. Ensure the target fills the measurement spot. Avoid reflective surfaces.
Why is the display showing 'Err'?
'Err' indicates the measurement is outside the range or a sensor fault. Check if the target temperature is between -50°C and 550°C. If persistent, replace the battery.
Can I measure body temperature with this thermometer?
No, this thermometer is designed for industrial applications and is not calibrated for human body measurement. Use a medical thermometer for body temperature.
What is the warranty period?
Optex typically offers a 1-year warranty against manufacturing defects. Keep your receipt and contact your dealer for claims.
How to store the thermometer when not in use?
Store in a dry, cool place at temperatures between -20°C and 60°C. Remove the battery if storing for extended periods to prevent leakage.
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USER MANUAL PT-7LD OPTEX
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Product information
Brand : OPTEX
Model : PT-7LD
Category : Thermometer