Prokit's Industries MT-7600 User Manual

MT-7600 Fiber Optic Power Meter

User’s Manual

1st Edition, 2011
©2011 Copy Right by Prokit’s Industries Co., Ltd.

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Thank you for purchasing this instrument. To get the best use of your equipment
and ensure safe operation to provide the best possible reliability, convenience and
performance, please spend a few minutes to read this manual.
For the absolute power measurement and relative measurement of the link loss in
dB, thanks to its friendly operation interface, broad power measurement range,
high precision and high performance in application makes it an ideal tool for optical
fiber network.

Application

The MT-7600 Fiber Optic Power Meter is used for field or laboratory testing of fiber
optic systems at typically 850, 1300, 1310 and 1550 nm. It features superb
measurement confidence, ease of use and reduced cost of ownership, and is for
use by installers, technicians and engineers, telecom construction, maintenance,
CATV, LAN and R&D applications.

Specifications

1. Sensor Element: InGaAs

2. Calibration Wavelengths: 850nm , 1300nm , 1310nm , 1550nm.

3. Power Range: +3dBm ~ -55dBm , 2mW ~ 4nW.

4. Resolution: 0.01.

5. Accuracy: 0.3dBm.

6. Connector: Multi-connector (ST, FC, SC 3 in 1)

7. Overload indication.

8. Low battery indication.

9. Auto-power-off function.

10. Back-light function..

11. Operating / storage: -0 to 50°C / -20 to 60°C (0~80%RH)

12. Power: 4 alkaline battery 1.5V (not included)

13. Accessories: User manual

Carrying case

1 piece of SC Patch cord

LC adaptor (optional)

14. Size: 185 x 84 x 42 mm

15. Weight: 420 g

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Names of Parts

1. Multi-connector (ST, FC, SC
three in one)

2. LCD.

3. Power ON/OFF button.

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4. Function button keypad.

5. Back-light push button.

6. Battery cover

Operation

1. Press the On/Off key to turn on the Power Meter

2. Press the λ key to set wavelengths that you want to measure.

3. Connect the optical net to be measured, and then reading will be displayed on
the LCD screen, including Linear and nonlinear value.

4. Relative power measurement. Press dB key, then current power value is stored
as a reference value in dB unit.

Optic Network System

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Appendix:
Optical fiber loss measurement
Step 1- Optical Reference Level

Turn on optical power meter and press the λ key to select the wavelength.
Turn on optical light source and select the wavelength. Wait for 1-2 minutes

until it stabilize. Select a piece of patch cords, which is used to connect with
the light source. The patch cords must be the same fiber type as the fiber
under test. Connect the light source with the Power Meter through the
source patch cords. Power Meter will get the power measurement value.

This value should be close to the value of the light source. If it has wide

disparity, please make sure the fiber connection is clean properly else
replace jumpers.

Press the dB key; 0dB will be displayed on the screen. The tested power

values will be set to the reference value.

Step 2-Optical Loss Measurement

Keep the source patch cords connection with the light source.

Connect the Power Meter and light source (emitting source) to the optical

fiber link respectively.

LCD Display

850nm 1300nm 1310nm

HI

dBm mWuW

1550nm

AUTO OFF

dB

nWpW

1. Low-Battery indicator: Please use alkaline battery to increase normal
operation time. When low-bat indicator is lighted, please change battery
immediately. This can assure the stability of power.

2. Wave length: Display currently measurable wavelength.

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