Questions about Sensors

Questions about sensor products are posted.

Thermal Sensors

Thermal Sensors

About viewing angle

  1. Can the field of view (FOV) angle be increased?

    No. OMRON set the FOV in consideration of the constraints imposed by the thickness and refractive index of the silicon lens. Measurement distance is reduced as the FOV of one element increases. Therefore, we can not simply widen the viewing angle. A good way to measure a wide range, is to install multiple sensors, or mount the sensor on a movable/rotating base.


  1. Are there any effects on an infrared remote controller?

    No. The silicon lens we are using will not pass through most near-infrared and visible light below 1.2 [μm] wavelength. Therefore, it dose not affect the infrared signal of the remote controller. The far infrared rays that are emitted as radiant heat are about 4 to 14[μm].

About person's distinction

  1. Is it possible to distinguish between humans, animales, and appliances?

    No. In the non-contact temperature module, you can only acquire surface temperature measurement data. Different objects of the same temperature will read the same. Further discrimination must be based on the behavior of the measured data to distinguish the object by software on the user side. By developing software designed with your specific application in mind, the determination accuracy may possibly be improved.

About distance

  1. What is the distance range that can detect the presence of people?

    This is grearly affected by the decision performance and software installation conditions. It is also affected by size of the object to be measured and the area of the FOV per element. A rough guideline distance is about 5 to 6 meters.

About power consumption

  1. Can the power consunmption be reduced?

    No. The D6T thermal sensor dose not have a power saving mode. Therefore, in order to reduce power consumption it is necessary to shut off the power.

About power supply voltage and slave address

  1. Is there a sensor that can operate on a supply voltage of 3[V]? Is there an I2C slave address that I can change?

    No. The D6T thermal sensor dose not support them.

Environment Sensors

Environment Sensors

About purchase

  1. Can I purchase individually?

    It is limited to corporate customers and not to be sold to individuals who do not belong to a corporate or organization.

About purchase quantity

  1. What is minimum unit we can buy?

    one unit.

About environment sensor

  1. I would like to know detailed information about environment sensor.

    We send product catalogue. Please go to inquiry – box and request , filling in the form.

About lending of sensors

  1. Can I borrow environment sensor?

    No. Please consider purchasing the product by yourself.

About data output

  1. What is the output data rate?

    Data output can be set by seconds between 1 to 3600 seconds

Optical Sensors

Optical Sensors


  1. What's the difference between OMRON's Photo Micro sensors and photo interrupters which are used generally?

    Actually, it's the same thing with no difference but it's named as "Photo Micro Sensors" in 1976 the beginning of development and we're loving to use it until today.

About specification

  1. What's the difference between Phototraisistor type and Photo-IC one?

    Phototransistor type has a "Transistor output circuit"and Photo-IC one has a "Comparetor circuit"in its inner circuit.

  2. How can we read the lot code?

    In the case of 3 digits
    - First digit: Produced date
    - 2nd digit: Produced month
    - 3rd digit: The last number of produced year

    In the case of 4 digits
    - First digit: Produced date
    - 2nd digit: Produced month
    - 3rd digit: The last number of produced year
    - 4th digit: Produced place code

    *If except 3rd or 4th digit, we reply you from our e-web customer contact.

    About confirmation method of lot number(PDF)
    How to Read the Lot Number

About designing

  1. How can we design the driving circuit for LED?

    Please limit LED by resistance and use within the temperature rating chart. To get more details, please check catalog's technical description (P.10).

  2. How can we design the light-receiving element driving circuit?

    Photo-transistor, photo IC type to both convert voltage current resistance, please drive by high and low voltage circuit of the second sentence. To get more details, please check catalog's technical description (P.10).

  3. What a kind of materials should we use for shading objects?

    When measuring the light interception properties of the light interceptor, use 0.1% maximum light transmission as a guideline.

  4. How's the conditions for soldering (reflow-soldering, reflow, flow)?

    If not specified, soldering should be performed with hand soldering at 350 degrees for 3 seconds and flow at 260 degrees for 10 seconds (both of which are terminal temperatures). Please handle it by priority in case of the specified specification. For SMD, please refer to catalog or soldering condition of specification.


  1. Are your photomicrosensors completely supported by RoHS standard?

    All of our Photomicrosensors are supported by RoHS standard so you can use without any problems.