(英語)photom|グレイテクノス株式会社

Business card size, lightweight
A variety of models that support a wide range of input wavelengths are available.

Business card size, lightweight
A variety of models are available for a wide range of output wavelengths.

We offer a set that suits your purpose in a lightweight and robust hard case.
In addition to these lineups, we will assort the products upon request.

We accept calibration work for our products and issue a “calibration certificate”.
If adjustment is necessary, we will adjust it.
Also, if a defect (repair required) is confirmed, repair + calibration is also possible.
Optical power meters , light sources , light source units for · 215 205A , in has been accepted calibration.
(We also accept proofreading of products other than the current product. For now, up to about 20 years ago)
Contact Us or until the dealer.

※ Please send only the main unit as much as possible. (To prevent loss of accessories)

We accept repairs of broken products.
In order to respond quickly to repaired products,
please let us know as much as possible about the occurrence status, frequency, phenomenon, and contact information of the user.
Please fill out the form below and apply.

※ Please send only the main unit as much as possible. (To prevent loss of accessories)

1 If there is a failure due to manufacturing reasons within the warranty period (within 1 year after delivery to the customer), we will repair it free of charge.
It is paid in the case corresponding to the item in the following even within the 2 warranty period
failure due to force majeure, such as the use methods and natural disasters wrong –
failure due to severe use more than the environment that is defined in the operation manual
, our company or our Failure caused by modification or repair by someone other than
3 Inspection and calibration within the warranty period will be charged.
4 Repair or calibration may be refused in the following cases:
・ If it is more than 7 years after manufacturing and parts are difficult to obtain
・ Products that have been over 5 years after discontinuation of production
・ Reliability after repair due to significant wear and deterioration
・If it is determined that the product cannot be maintained
・ Remodeling or repairs by other than our company
・ Parts or equipment cannot be secured

＜Cleaning method of optical power meter sensor.pdf＞

＜Precautions for using optical ferrule products.pdf＞

＜How to clean optical connectors.pdf＞

＜Cleaning method of optical input / output unit.pdf＞

＜Precautions to avoid damaging the sensor.pdf＞

1.　 Connect the reference fiber from the light source to the optical power meter as shown in Fig. 1,

　　and display the output from the light source on the optical power meter.

　　Let this displayed value be P1.

　　(P1: Displayed value of optical power meter when only reference fiber is connected)

　　Figure 1 , Example : P1 = -5dBm

2.　 Disconnect the reference fiber and the optical power meter from the connection in Fig. 1,

　　and connect the fiber to be measured via the relay adapter to the disconnected section as shown in Fig. 2.

　　At this time, the output of the light source via the reference fiber and the measured fiber is displayed on the optical power meter.

　　Let this displayed value be P2.

　　(P2: Optical power meter display value when the reference fiber and the measured fiber are connected)

　　Figure 2 Example: P2 = -7.5dBm

3.　 The difference between the optical power meter readings of P1 and P2 is the attenuation (loss) of the measured fiber.

　　Calculation formula: P2-P1 = loss of the measured fiber

　　[ Example: -7.5dBm – ( -5dBm ) = -2.5dB ]

(1) From the light source output when the reference fiber is connected, how much output has dropped by connecting the fiber to be measured. The amount of this drop is the attenuation of the fiber to be measured.

(2) Our power meter has a “relative value measurement function”. (Excluding 216 for current products)

This series of “P2-P1 = loss of fiber under test” can be simplified.

After measuring the reference fiber, press the REL (dB) switch to set the reference value, and then connect the measured fiber, the attenuation of the measured fiber can be displayed automatically.

The actual procedure:

Connect as shown in Fig.1 and measure → press REL (dB) → remove power meter.

Connect the measured fiber to the removed section via a relay adapter as shown in Fig. 2.

1.　 Connect the reference fiber from the light source to the optical power meter as shown in Fig. 3,

　　 and display the output from the light source on the optical power meter. Let this displayed value be P1.

　　 (P1: Displayed value of optical power meter when only reference fiber is connected)

　　 Figure 3 Example: P1 = -25dBm

2.　 Disconnect the reference fiber and the power meter on the sensor side from the connection in Fig. 3, and connect the fiber to be

         measured via the relay adapter to the disconnected section as shown in Fig. 4. At this time, the output of the light source

         via the reference fiber and the measured fiber is displayed on the power meter on the sensor side. Let this displayed value be P2.

         (P2: Optical power meter display value when the reference fiber and the measured fiber are connected)

         Figure 4 Example: P2 = -27.5dBm

3.　 The difference between the optical power meter readings of P1 and P2 is the attenuation (loss) of the measured fiber.

　　Calculation formula: P2-P1 = loss of the measured fiber

　　[ Example: -27.5dBm – ( -25dBm ) = -2.5dB ]

(1) From the light source output when the reference fiber is connected, how much output has dropped by connecting the fiber to be measured. The amount of this drop is the attenuation of the fiber to be measured.

(2) Our power meter has a “relative value measurement function”.

This series of “P2-P1 = loss of fiber under test” can be simplified.

After measuring the reference fiber, press the REL (dB) switch to set the reference value, and then connect the measured fiber, the attenuation of the measured fiber can be displayed automatically.

​

The actual procedure:

Connect as shown in Fig. 3 and measure → press REL (dB) → remove the power meter on the sensor side.

Connect the measured fiber to the removed section via the relay adapter as shown in Fig. 4.

This displays the attenuation of the measured fiber.