Infrared Thermometer Industrial Infrared Temperature Transmitter 20mA Non-Contact

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: WLD-HL
• Accuracy: 1°C
• Usage: Industrial
• Display: Digital
• Material: Bimetallic
• Hygrometer Type: Hair Hygrometor
• Transport Package: Wooden Case
• Specification: 520g
• Trademark: WLD
• Origin: China
• HS Code: 9025199090
• Production Capacity: 20000/Year

Product Description

HL Laser Targeting Infrared Thermometer
The HL series of infrared thermometers feature precise laser targeting; equipped with an LCD display window that shows the current measurement temperature and allows for on-site parameter settings. Users can conveniently aim at the measurement target and select the optimal measuring distance. This provides users with a convenient and highly reliable means of measurement.
LCD temperature display with backlight, on-site emissivity adjustment
Up to 200:1 distance-to-spot ratio, minimum measurement diameter < 0.8mm
Focus adjustment available for medium and high-temperature products
Laser indication for measurement orientation
Spot indication for the optimal measurement position
Rugged and durable housing meets IP65 (NEMA4) standards
Optional RS485 digital output. External laser control function is optional
Multifunctional button setting method is optional
(On-site setup for peak value, average value, output range, etc.)

Main Application Areas
Temperature measurement and monitoring in low to medium temperature targets and environments: tobacco, food, plastics, packaging, textiles, electric power, petrochemicals, coal, etc.
Metal processing and heat treatment: welding, forging, annealing, quenching, hot stamping, vacuum furnace, high-frequency heating, etc.
Semiconductors: polysilicon, monocrystalline silicon crystal pulling, melting, annealing, furnace temperature control, etc.
Steel and non-ferrous metals: melting, rod and plate materials, hot rolling, wire rod, galvanizing, tinning, hot blast stove, coke oven, sintering, etc.
Printing, papermaking, glass, refractory materials, kilns: temperature measurement and control of medium and high-temperature objects during production.

Measurement Parameters
System accuracy ±1% or ±2°C (whichever is greater) (Ambient temp: 23±5°C)
Repeatability ±0.5% or ±1°C (whichever is greater) (Ambient temp: 23±5°C)
Temperature resolution 0.5°C
Emissivity 0.100-1.099 in steps of 0.001
Signal processing Average value, peak value, output range, etc. (Customizable multifunctional button settings or adjustable via software using RS485)

Measured wavelength um	LT:8-14um	IE:2.6um	IN:1.6um	SI:1.0um
temperature  ºC	L:-40-600	L:50*-400	L:200-800	L:600-2000
	H:-25-800	H:100-800	H:300-1400	H:700-2600
		H1:150-1100
Distance coefficient	L:70:1	L:70:1	L:120:1	L:200:1
	H:70:1	H:120:1	H:200:1	H:200:1
		H1:200:1
respond time ms	100	10	10	10

Basic Parameters
Environmental Rating IP65 (NEMA-4)
Ambient Temperature 0 - 60°C
Storage Temperature -20 - 80°C
Relative Humidity 10 - 95%, non-condensing
Weight 390g
Electrical Parameters
Analog Output 4-20mA
  0-20mA (customizable)
Maximum Loop Impedance 750Ω at 24VDC
Power Supply 12 - 24VDC, 100mA



### Optical Field of View Explanation

#### Fixed Focal Length Thermometers
- **Fixed Focus**: The focus of fixed focal length thermometers is predetermined and non-adjustable. Accurate temperature measurement is only achieved when the target is at the specific focal distance designed into the instrument.

#### Adjustable Focal Length Thermometers
- **Adjustable Focus**: With adjustable focal length thermometers, the focus can be modified by the user, allowing for accurate temperature measurements at various distances within a specified range, all while maintaining the designed distance-to-spot ratio.
- **Focus Adjustment**: Users can alter the focal distance by rotating the optical lens, enabling them to achieve the optimal measurement size from an appropriate installation location.
- **Laser Targeting**: By using the targeting laser and observing where the laser spot is smallest and most distinct, users can determine the precise measurement focus of the thermometer.

#### Measurement Calculation
- **Measurement Calculation**: Assuming a measurement distance of L and a thermometer with a distance-to-spot ratio of, for example, 200:1, the measurement diameter M at that distance can be calculated as $ M = \frac{L}{200} $.

#### Example
- **Example**: If the measurement distance $ L $ is 4 meters and the thermometer has a distance coefficient of 200:1, then the measurement diameter $ M $ would be 20 millimeters.

#### Additional Notes
- **Temperature Measurement Threshold**: The minimum measurable temperature of the target should be at least 25°C above ambient temperature. For a measurement accuracy of 50°C, the response time is approximately 1 second.

This explanation provides a clear understanding of the optical capabilities and usage considerations for fixed and adjustable focal length thermometers, ensuring accurate temperature measurements in various applications.

 
**Essential Specifications for HC Series Infrared Temperature Probes**

Delivering exceptional performance across a range of environments, the HC series infrared temperature probes are designed to meet the following fundamental parameters:

- **Environmental Rating:** IP65 (NEMA-4), ensuring protection against the ingress of dust and water from any direction.
- **Operating Temperature Range:** 0 - 60°C, making it suitable for use in a wide variety of indoor and outdoor conditions.
- **Storage Temperature Range:** -20 - 80°C, allowing for reliable storage even in extreme temperature variations.
- **Relative Humidity:** 10 - 95% non-condensing, providing robust operation in varying humidity levels without the risk of moisture buildup.
- **Weight:** A mere 120g, offering easy maneuverability and minimal burden on measurement setups.

**Electrical Specifications:**
- **Analog Output:**
    - **Current Output:** 4-20mA, a standard industrial range for easy integration with control systems and instrumentation.
    - **Maximum Loop Impedance:** 750Ω (at 24VDC), ensuring stable output signals even over long cable lengths.
    - **Power Supply:** 12-24VDC at 50mA, offering flexibility in powering the probe within a broad voltage range.

With these basic parameters, the HC series infrared temperature probes are engineered to provide reliable and precise temperature measurements in diverse settings, from industrial machinery to environmental monitoring. Their rugged construction and versatile electrical specifications make them an ideal choice for applications that demand both durability and accurate temperature readin