Steren HER-427 - Gun Style Digital IR Thermometer Manual
  1. Manuals
  2. Brands
  3. Steren Manuals
  4. Thermometer
  5. HER-427
  6. User manual

Steren HER-427 - Gun Style Digital IR Thermometer Manual

Also See for HER-427:

Advertisement

Table of Contents
Contents
Steren HER-427 - Gun Style Digital IR Thermometer Manual

SAFETY


Read this instruction carefully to avoid any malfunction.
The information shown in this manual serves only as a reference for the product. Due to updates there may be differences. Please check our website www.steren.com for the most recent version of this manual.

  • This device is not intended for use by persons (including children), whose physical, sensory or mental abilities are different or reduced, or who lack experience or knowledge.
  • Children should be supervised to ensure they do not use the device as a toy.
  • To avoid damage and injury to the eyes, do not look directly at the laser. Do not point directly at people or animals or at reflective surfaces.
  • If laser radiation hits the eye, you should close your eyes and immediately move your head out of the beam.
  • Do not try to use dark glasses as protection, as they do not protect against laser radiation.
  • Do not use the appliance in an environment where there are liquid fuels, gases or powdered materials, as this may cause sparks and fire.
  • Pay attention to what you are doing when operating this appliance.

PARTS

PARTS
* Press the backlight button to turn on / off

  1. Laser pointer
  2. Infrared sensor
  3. Measuring trigger
  4. Battery compartment
  5. Change of function (MAX, MIN, AVG, LAL, HAL)
  6. Degrees (Celsius or Fahrenheit)
  7. Backlight / Top
  8. Power on / off laser pointer
  9. LCD screen
  10. Change of emissivity

SYMBOLS OF THE SCREEN

SYMBOLS OF THE SCREEN

  1. Laser on
  2. High temperature warning indicator
  3. Low temperature warning indicator
  4. Data retention
  5. Temperature measurement ºC or ºF
  6. Emissivity
  7. Scanning
  8. Main measurement

IMPORTANT CONSIDERATIONS

* Before measuring any surface, make sure it is clean.
* If the surface of the object you want to measure is very reflective, apply adhesive tape or apply matte black paint and before measuring, wait for it to adjust to the temperature of the covered object.
* The measurements should be taken as close as possible to the object. The thermometer can take measurements at a greater distance (up to 12 meters), however, they can be affected by external agents (steam, dust, smoke, dirt, etc.).
* Measurements made through transparent surfaces such as glass may not be accurate.
* The thermometer automatically compensates for ambient temperature deviations, however, it may take a few minutes to adjust to wide temperature changes.

Measurement area
The measurement target must be larger than the infrared size of the equipment. As the distance (D) of the lens increases, the size of the measurement area also becomes larger. Thus. the smaller the surface (S) to be measured, the closer you should bring the thermometer.
Measurement area

BATTERY PLACEMENT

Use a 9 V battery, and install it as shown in the image. Replace it if necessary.
BATTERY PLACEMENT

INSTRUCTIONS

Temperature measurement

  1. Adjustments
    1. Press the trigger to turn on the thermometer.
    2. Press T / DN to select the unit of measurement: degrees Celsius (°C) or fahrenheit (°F).
    3. If necessary, change the emissivity values according to the material of the measurement object. The thermometer is set at 0.95, the standard emissivity value for most organic materials and painted surfaces. For more information, see the Appendix at the end of this manual.
  2. Mode of use
    1. Point the thermometer at the measurement object. You can press the [__] button to activate or deactivate the laser.
    2. Press and hold the trigger to start the measurement. At the top of the screen, the word SCAN will appear and the reading of the current temperature will be displayed.
    3. Release the trigger. The H symbol will appear at the top of the screen and the last registered temperature reading will be maintained (for a few seconds).
      After approximately 30 s of inactivity, the thermometer will turn off automatically.

OTHER FUNCTIONS

Maximum temperature
Press the "MODE" button until the MAX symbol appears on the screen. During a measurement, the maximum registered temperature value will be kept at the bottom of the screen.

Minimum temperature
Press the "MODE" button until the MIN symbol appears on the screen. During a measurement, the minimum registered temperature value will be kept at the bottom of the screen.

Average temperature
Press the "MODE" button until the AVG symbol appears on the screen. Hold the trigger while pointing the thermometer at different points on an object; The meter will record the different temperatures and automatically display the average temperature at the bottom of the screen.

Low temperature warning
Press the "MODE" button until the LAL symbol appears on the screen. Press the "UP" and "T / DN" buttons to set a temperature. If a temperature lower than the set temperature is registered during a measurement, the symbol L (Low) will appear on the screen.

High temperature warning
Press the "MODE" button until the HAL symbol appears on the screen. Press the "UP" and "T / DN" buttons to set a temperature. If a temperature exceeds the set temperature during a measurement, the H (High) symbol will appear on the display.

Emissivity adjustment

  1. Press the "SET" button.
  2. Use the "UP" and "T / DN" buttons to change the emissivity values according to the material of the measurement object. You can consult the reference table.
Emissivity Table
Material Emissivity Material Emissivity
Asphalt 0,90 a 0,98 Textile (dark) 0,98
Concrete 0,94 Human skin 0,98
Cement 0,96 Soap bubbles 0,74 a 0,80
Sand 0,90 Coal (powder) 0,96
Floor 0,92 a 0,96 Lacquer 0,80 a 0,95
Water 0,92 a 0,96 Lacquer (bright) 0,97
Ice 0,96 a 0,98 Rubber (dark) 0,94
Snow 0,83 Plastic 0,85 a 0,95
Glass 0,90 a 0,95 Wood 0,90
Ceramics 0,90 a 0,94 Paper 0,70 a 0,94
Marble 0,94 Chromic oxide 0,81
Cast 0,80 a 0,90 Copper oxide 0,78
Compost 0,89 a 0,91 Iron oxide 0.78 a 0,82
Brick 0,93 a o, 96 Stainless steel 0,2 a 0,3

SPECIFICATIONS

Input: 9 V - - - (1 x 9 V)
Temperature range: -30 to 320°C (-22 to 608°F)
Emissivity: Preset 0.95
Accurate: -30 to 0°C + 3°C / 0°C a 100°C + 2°C / 100 a 320°C + 3°C)
Response time: 500 ms
Laser power output: <1 mW
Wave length: 630 - 670 nm
Spectre response: 8 -14 um
Storage / Operating temperature: -20 to 65°C / 0 to 50°C
Storage / Operating RH: <80% / 0 to 90% (non-condensed)
Maximum measuring distance: 12 m

Documents / Resources

References

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Steren HER-427 - Gun Style Digital IR Thermometer Manual

Advertisement

Need help?

Need help?

Do you have a question about the HER-427 and is the answer not in the manual?

Questions and answers

Related Manuals for Steren HER-427

Save Article as PDF

Table of Contents