Subscribe to Our Youtube Channel
Related Manuals for YOKOGAWA FB200
Summary of Contents for YOKOGAWA FB200
- Page 1 User’s FB200 Manual FBG Sensor Monitor IM 703753-01E 1st Edition Yokogawa Electric Corporation...
- Page 2 • Copying or reproducing all or any part of the contents of this manual without the permission of Yokogawa Electric Corporation is strictly prohibited. • This product’s warranty is limited to its performance and functions. Yokogawa shall not be responsible for any loss, damage, costs or expenses which may be incurred by the user in the rare event that the instrument malfunctions.
-
Page 3: Checking The Contents Of The Package
Checking the Contents of the Package Unpack the box and check the contents before operating the instrument. If some of the contents are not correct, or if any items are missing or damaged, contact the dealer from whom you purchased them. 703753 Check that the model name and suffix code given on the name plate on the front panel match those on your order. -
Page 4: Safety Precautions
The following general safety precautions must be observed during all phases of operation. If the instrument is used in a manner not specified in this manual, the protection provided by the instrument may be impaired. Yokogawa Electric Corporation assumes no liability for the customer’s failure to comply with these requirements. -
Page 5: How To Use This Manual
How to Use This Manual Structure of This Manual This user’s manual consists of the following sections. Chapter Title Description Explanation of Functions Describes the measurement principles and the functions of the instrument. Operational details are not given in this chapter. However, reading this chapter will help you understand the operating procedures given in the chapters that follow. -
Page 6: Table Of Contents
Contents Checking the Contents of the Package ................... ii Safety Precautions ......................... iii How to Use This Manual ........................ iv Chapter 1 Explanation of Functions Block Diagram and Configuration Diagram ..............1-1 Measurement Method ...................... 1-2 Names and Functions of Parts ..................1-4 Chapter 2 Installation Procedure Operating Precautions ..................... -
Page 7: Chapter 1 Explanation Of Functions
Chapter 1 Explanation of Functions Block Diagram and Configuration Diagram The block diagram of the optical system is shown below. The optical system employs a polychromator system consisting of a fixed grating and a photodiode array (PDA sensor). Because the reflection spectrum of FBG can be detected using an optical system with its fixed elements (component parts), it is ideal for applications that demand high reliability. -
Page 8: Measurement Method
Measurement Method In the measurement of strain, temperature, and other items using the FBG sensor, strain, temperature, and other items can be derived by measuring the reflection spectrum from the grating area that forms in the optical fiber. The FBG wavelength monitor is a useful instrument for measuring the wavelength. - Page 9 1.2 Measurement Method Because the FB200C/FB200L uses a polychromator system with no moving parts, high- speed stable measurement is possible. The basic measurement sequence is shown below (examples for –5 dBm and –15 dBm ranges). • When Averaging Is Not Performed The measurement interval is determined by the selected interval.
-
Page 10: Names And Functions Of Parts
Names and Functions of Parts The figure below shows the outline and the arrangement of parts such as the optical input, interface connector, and mode switch. • Mode Switch The mode switch is located inside the side panel cover. You can set the operation mode, transfer rate, and other parameters by using these switches. -
Page 11: Chapter 2 Installation Procedure
Chapter 2 Installation Procedure Operating Precautions CAUTION The photodiode array module can be damaged, if a light greater than or equal to 10 mW per wavelength or 100 mW total power is incident. Never apply power that exceeds the limits described above. •... -
Page 12: Connecting The Interface Connector
Connecting the Interface Connector • Check the pin assignments of the interface connector and the input line connection, before connecting the connector. The pin assignments and details of the interface connector are given in the table below. Make sure to connect the case to the device’s frame ground. This will prevent erroneous operation due to noise. -
Page 13: Installing The Instrument
Installing the Instrument The operating environment of the FB200C/FB200L is described below. Always operate the instrument within the range specified. The figure below shows the temperature and humidity range. To maintain the adequate performance over a long period, apply as little vibration and shock as possible even if they are within the specifications. - Page 14 2.3 Installing the Instrument • Installation Procedure Attach the FB200C/FB200L using the six holes for attachment screws shown in the figure below. When fastening the FB200C/FB200L in place, be sure that the attachment screws do not go deeper than 5 mm from the surface of the case. Holes for M3 attachment screws (6 locations) FB200C/FB200L case 5mm or less...
-
Page 15: Chapter 3 Operating Procedure
Chapter 3 Operating Procedure Setting the Mode Switch The FB200C/FB200L is designed to be integrated into an FBG sensing system device. It has various device settings and commands to be used with the system. This chapter describes the setup and commands for the FBG sensing system device. In addition, the FB200C/FB200L can be connected to your PC via the RS-232C interface by using the 703781 Power Supply Unit that is sold separately. -
Page 16: Commands
Commands The FB200C/FB200L has various commands and response statuses. By setting the measurement conditions, appropriate signals can be measured. Statuses can be received to check the instrument’s conditions. The transmission and reception of commands and statuses are executed via the RS-422 interface. - Page 17 3.2 Commands Command Name Command Control Description Set the threshold RBT_nnnnn Sets the threshold level for computation in the current level for the current measurement range. range nnnnn="-2234": -22.34 dBm Returns OK:RBT_nnnnn when the process is complete. Query RBT? Returns RBT_nnnnn. Set the range RNG_nnn Sets the measurement optical power range.
- Page 18 3.2 Commands Command Name Command Control Description Set the wavelength WLT_nnnnn, Sets the output wavelength range. range nnnnn nnnnn,nnnnn="15320, 15670": Outputs the data corresponding to the peak that is detected within the wavelength range between 15320.0 nm and 15670.0 nm. The selectable range is from 0.0 to 9999.9 nm.
- Page 19 3.2 Commands Computation bandwidth Optical wavelength Photodiode array element Set the computation bandwidth to a value that covers the ends of the spectrum. However, do not let it cover the adjacent spectrum. (The guide line is approximately twice the Full Width Half Maximum.) IM 703753-01E...
-
Page 20: Output Format
Output Format The FB200C/FB200L outputs the number of waveforms, center wavelengths, and optical power levels of the reflection spectrum of FBG. The output data format is shown below. BPM nnn,nnnnnnn±nnnn,nnnnnnn±nnnn,nnnnnnn±nnnn,-----CRLF 2nd center wavelength and optical power level Optical power level of the 1st peak 1st center wavelength The number of FBG reflection spectra detected Example If the output is BPM_002,1550334-1624,1557987-1576,... -
Page 21: Using The Fb200C/Fb200L Through A Pc
Using the FB200C/FB200L through a PC WARNING To prevent electric shock, turn OFF the device that is being connected before proceeding. • Connect the FB200C/FB200L and the 703781 Power Supply Unit using the flat cable. Then, connect the power supply unit and the PC using the serial interface cable (cross cable). -
Page 22: Chapter 4 Troubleshooting And Maintenance
Chapter 4 Troubleshooting and Maintenance Troubleshooting Description Probable Cause Corrective Action Reference Page The power cannot be Using a power supply outside the Use a correct power supply. 2-2, 5-2 turned ON. ratings. The connector wiring is not correct. Check that the wiring is correct. Measured values are not Insufficient warm-up. -
Page 23: Error Codes
Error Codes If an error is detected during measurements, the FB200C/FB200L outputs an error code indicating the condition. The error codes and their descriptions are listed below. You can check the details of an error code by sending the REA_7 command. The cause and corrective action for these errors are indicated in the table on page 4-3. - Page 24 4.2 Error Codes • Causes of Error Codes and Their Corrective Action ERR_n Error Cause of Error Corrective Action Parity error The communication interface may not be Check the communication interface settings. Framing error configured correctly. Undefined Output when an undefined command is used. Check the command again and send the command error correct command.
-
Page 25: Maintenance
Maintenance Storage When storing the instrument, avoid the following locations. High humidity environments High temperature, in direct sunlight, or near heat sources Location with constant vibrations or shock Dusty environment, environment with corrosive gases, and salty environment Repairs This instrument has highly sensitive sensors and clean optical system on the inside. If the instrument needs to be repaired, contact your nearest dealer. -
Page 26: Chapter 5 Specifications
Chapter 5 Specifications Basic Specifications Item Characteristics Notes Wavelength Wavelength 1527 to 1567 nm (FB200C) C band model measurement range 1568 to 1607 nm (FB200L) L band model Wavelength 1 pm display resolution Relative wavelength ±10 pm or less Temperature fluctuation deviation 10°C/6 h or less Wavelength... -
Page 27: General Specifications
General Specifications Electrical Specifications and Other Specifications • Electrical/Mechanical Characteristics Item Specifications Power supply +5 V ± 5%, (reverse connection protection circuit not built in) +5 V ± 10%, (for Peltier operation, reverse connection protection circuit not built in) (The rise time to operating voltage from power-on is within 1 second) Power on sequence Time difference to reach operating voltage is within 100 ms. -
Page 28: Environmental Conditions
Environmental Conditions Environment In the device (indoor) Operating temperature and operating humidity* 0 to 60°C (ambient temperature) and 5 to 85% RH (no condensation) Storage temperature and storage humidity –40 to 70°C (ambient temperature) and 5 to 85% RH (no condensation) Vibration 4.9 m/s (0.5 G): during operation... -
Page 29: External Dimensions
External Dimensions Unit : mm 703753-D1 Holes for M3 attachment screws (6 locations) Unless otherwise specified, tolerance is ±3% (however, tolerance is ±0.3 mm when below 10 mm). IM 703753-01E... -
Page 30: Chapter 6 Sample Program
Chapter 6 Sample Program Terminal Mode Settings The FB200C/FB200L is designed to be integrated into an FBG system device. This chapter gives a connection setup and configuration example. • Line Settings Receive: CR Send: CR+LF • Port Settings Port:See the setting of your PC. Baud rate: Set the required baud rate. -
Page 31: Program Setup
Program Setup Measurement example: Below is the setup example when performing continuous measurement at a measurement interval of 80 ms by averaging the reflection spectra of the following two FBG sensors 8 times. FBG1 Wavelength: 1555.243 nm, optical power level: –16.25 dBm FBG2 Wavelength: 1556.033 nm, optical power level: –15.62 dBm •... - Page 32 Index and Terminology Index AVE ..................3-2 OFF ..................3-2 ambient temperature ........... 2-1, 2-3 operating humidity ............... 5-3 average count ............. 3-2, 3-7 operating temperature ............5-3 optical input ................. 1-4 optical wavelength offset compensation ......3-7 output format ............... 3-6 BUSY ..................
-
Page 33: Index
Index ZER ..................3-2 ZTH ..................3-2 Index-2 IM 703753-01E... -
Page 34: Terminology
Terminology Wavelength Minimum channel spacing Definition The minimum spacing between wavelengths that is required to separate and extract light of different wavelengths. Description For example, if light containing waveforms whose wavelength spacing is less than the minimum channel spacing, the two waveforms may be detected as one waveform. - Page 35 Terminology Peak condition Minimum power difference that is needed to detect the center wavelength. Example: If a point with a power difference of 4.0 dB exists within the computation bandwidth of 800 pm, it is detected as a peak, and the center wavelength is calculated.
Need help?
Do you have a question about the FB200 and is the answer not in the manual?
Questions and answers