Contents C onten ts Introduction ..............1 Inspection ..............1 Safety Information ............2 Operating Precautions ..........4 1 Overview Product Overview ..........7 Features ............. 8 Names and Functions of Parts ......9 2 Measurement Preparations Attaching the Strap ........... 13 Supplying Power ..........
Page 3
6 Specifications Measurement Specifications ......51 General Specifications ........53 7 Maintenance and Service Cleaning ............55 7.1.1 Cleaning of the 3664 .........55 7.1.2 Cleaning of the Optical Sensors ......56 Service ............. 56 Error Display ............. 57 Reset ..............59 7.4.1 System Reset ............59...
Introduction Thank you for purchasing the HIOKI “Model 3664 OPTICAL POWER METER.” To obtain maximum performance from the instrument, please read this manual first, and keep it handy for future reference. Registered Trademarks: • Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries.
Safety Information This instrument is designed to comply with IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, mishandling during use could result in injury or death, as well as damage to the instrument. Be certain that you understand the instructions and precautions in the manual before use.
Page 6
Overvoltage Categories (CAT) To ensure safe operation of measurement instruments, IEC 60664 establishes safety standards for various electrical environments, categorized as CAT I to CAT IV, and called overvoltage categories. These are defined as follows. CAT I Secondary electrical circuits connected to an AC electrical outlet through a transformer or similar device.
Operating Precautions Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions. Observe the following to avoid damage to the instrument. • Do not allow the instrument to get wet, and do not take measure- ments with wet hands.
Page 8
Cords and Cables • Avoid stepping on or pinching cables, which could damage the cable insulation. • To avoid breaking the cables, do not bend or pull them. • To avoid damaging the output cable, grasp the connector, not the cable, when unplugging the cable. Optical Sensor •...
Page 9
Never use abrasives or solvent cleaners. • Hioki shall not be held liable for any problems with a computer system that arises from the use of this CD-R, or for any problem related to the purchase of a Hioki product.
It is suitable for measure- ment of the optical power of a laser light source and an LED light source. The 3664 is a hand-held meter equipped with various mea- surement functions and interfaces that meet diversified measure- ment needs.
Auto-power-save function When the 3664 is running on the battery, if there is no key opera- tion or USB communication for approximately 10 minutes, the power to the 3664 will be automatically turned off to conserve bat- tery power.
1.3 Names and Functions of Parts 1.3 Names and Functions of Parts Front Panel Strap installation Slot Display Operating Keys Display Maximum, Minimum, Average Auto power save mark Battery mark Main display Relative-measurement indicator Range Measurement wavelength Sub display Relative-measurement mode 1.800.561.8187 information@itm.com...
Page 13
1.3 Names and Functions of Parts Operating Keys POWER Turns ON/OFF power to the 3664. Power ON: Hold down the key for approximately 2 seconds to turn the power ON (auto-power-save function ON). Hold down the key for approximately 5 seconds to turn the power ON and the auto-power-save function is turned OFF.
Page 14
Output signals from the opti- ries to this terminal. When the AC adapter cal sensor are converted to a voltage is used, power is supplied to the 3664 from and output from this terminal. a commercial power supply. Optical-sensor...
Measurement Preparations 2.1 Attaching the Strap Use the strap to carry the 3664 power meter or hang it on a hook. Be sure to attach the strap to the 3664 power meter in place (2 loca- tions) properly. If the strap is not properly attached, the meter may drop and be broken.
• When the AC adapter is connected and the battery is installed, the AC adapter is used. In case of power outage, the 3664 is automatically switched to the battery drive. • Make sure the power is turned off before connecting or discon- necting the AC adapter.
Using manganese batteries will result in a shorter operating time than when using alkaline batteries. • The 3664 power meter runs on battery or AC power. When the AC adapter is connected and the battery is installed, the AC adapter is used.
• To avoid ensuring accurate measurements, avoid dropping or applying any physical shock to the optical sensor. Insert an optical sensor, with the surface marked with an arrow fac- ing upward, into the optical-sensor terminal of the 3664. Optical Sensor Grasp the connector.
2.4 Connecting the Analog Output Cord 2.4 Connecting the Analog Output Cord To avoid damage to the instrument, do not short-circuit the output termi- nal and do not input voltage to the output terminal. By connecting the analog output cord to the analog output terminal, the optical power detected by the optical sensor can be converted to a voltage in order to monitor the signal.
If the battery indicator appears (" " at the top right of the screen) after the power has been turned ON, the battery is run- ning down. Replace the battery (when the 3664 is running on the battery). See Section 7.5 "Replacing the Batteries" (61 page)
• The measurement wavelength may be set to an arbitrary wave- length. • The measurement wavelength may also be set to a previously set wavelength. Connect an optional optical sensor to the 3664. To operate the 3664, an optical sensor must be connected to it. Flow of measurement (20 page)
Optical-power measurement The 3664 performs optical-pow- er measurement. Relative measurement (measured-value basis) The 3664 sets the optical power of the incident light to the optical sensor as the reference value, and measures the difference be- tween the set reference value and the current incident optical power.
3.2 Setting the Range 3.2 Setting the Range Each time the key is pressed, auto range and manual RANGE range alternate. Manual Range Auto Range 3.2.1 Auto Range The appropriate range for the incident optical power is automati- cally selected. The range display area will appear as shown below. When the key is pressed, "MANUAL"...
3.2 Setting the Range 3.2.2 Manual Range The range is set manually. " " appears in the range display MANUAL area. Press the key to display the setting edit screen. Press the key to display the setting edit screen for RANGE the manual range.
Page 25
" " is displayed; SAVE SAVE the 3664 will return to the measurement screen. The range is now fixed. Fixed range When the range is fixed through manual range setting, the mea- surement display shows "...
• The selectable wavelength range depends on the specification of the optical sensor connected to the 3664. • To ensure proper measurement, set the wavelength to the wavelength of the light used.
Page 27
Press the key to complete setting. SAVE "SAVE" appears; the 3664 will then return to the measurement screen. The measurement wavelength is now set. The measurement wavelength set • An arbitrarily set measurement wavelength is automatically saved in the measurement-wavelength memory.
Optical Sensor Cover • Removed sensor cover (Be Inject light. careful to avoid misplacing.) • Mount the sensor cover as shown in the figure to the left. The 3664 displays the measured optical power. 1.800.561.8187 information@itm.com www. .com...
Page 29
• If the optical power is too intense for the unit area, such as when a condensed beam on the focus plane is measured, the optical sensor may be saturated and the 3664 may not be able to conduct accurate measurement. This problem can be solved by changing the distance between the light source and the detector window of the optical sensor.
3664 displays the mea- sured value adjusted in accordance with the corrected sensitivity. Optical-power measurement Set the measurement wavelength to the wavelength of the light used. If the wavelengths differ, the 3664 is not able to conduct accurate measurement. 1.800.561.8187 information@itm.com www.
3.5 Setting Example 3.5.2 Relative Measurement (Measured-value basis) The 3664 sets the optical power of the incident light to the optical sensor as the reference value, and measures the difference between the set reference value and the current incident optical power.
Page 32
3.5 Setting Example " " is displayed on the screen, and the relative-mea- SAVE surement result is then displayed. The result is saved as the optical-power measurement ref- erence value. Mode Reference Value " " appears on the left side of the sub-display area, indicat- ing the relative-measurement (measured-value basis) mode, and the saved reference value is displayed on the right side of the sub-display area.
3.5 Setting Example 3.5.3 Relative Measurement (Input-value basis) The 3664 measures the difference between the reference value arbitrarily set by key entry and the current incident optical power. Entering the Reference Value Using the Keys/Relative Measurement Press the key to display the setting edit screen.
Page 34
Repeat steps 4 and 5 above to set the reference value. Press the key to complete setting. SAVE " " appears and then the 3664 returns to the measure- SAVE ment screen. The measurement wavelength is now set and the relative-measurement result is displayed. Mode Reference Value The number "...
4.1 Scalling Function Functions • Using the scaling function, a measured value can be converted to an arbitrary value and the converted value displayed. • The maximum-value-hold, minimum-value-hold, and averaging functions are available. 4.1 Scalling Function • A measured value is converted by scaling to an arbitrary value and displayed.
Page 36
4.1 Scalling Function Press the key to display the setting edit screen for the λ measurement wavelength. Blinking Measured value immediately before Scaling function the setting edit screen appears The value displayed first in the sub-display area is the dis- play value with the scaling OFF (internal coefficient of 1.000).
Page 37
4.1 Scalling Function Press the key to save the setting. SAVE " " is displayed, and the 3664 then returns to the mea- SAVE surement screen. The scaling coefficient is automatically calculated and saved as an internal setting. The indicator "...
SAVE before scaling. " " is displayed, and the 3664 then returns to the mea- SAVE surement screen. A scaling coefficient of 1.000 is set as an internal setting, and the scaling function is turned OFF.
4.2 Maximum-Value Hold / Minimum-Value Hold / Averaging 4.2 Maximum-Value Hold / Minimum-Value Hold / Averaging Each time the key is pressed, the calculation setting MAX/MIN/AVE changes as shown below. No calculation The calculation function is disabled. Maximum-value hold The maximum value among the current measurements is displayed.
Page 40
Blinking Press the key to save the setting. SAVE " " is displayed, and the 3664 then returns to the mea- SAVE surement screen. The number of averaging steps is now set. • After returning to the measurement screen, "...
By connecting the 3664 power meter to a PC, measurements can be read and the 3664 can be set up on the PC. When connecting the 3664 to a PC with a USB cable, use a cable of 2 m or shorter to prevent the influence of noise.
5.1 Overview of Control 5.1 Overview of Control • By connecting the 3664 power meter to a PC with a USB inter- face and calling API functions stored in the DLL from the applica- tion, the 3664 can be remotely controlled, and data can be exchanged between the 3664 and the PC.
5.2 Installing the Driver 5.2 Installing the Driver To connect the 3664 to a PC using the USB interface, the driver must be installed. System requirements Windows 98SE, Windows Me, Windows 2000, Windows XP Hardware requirements, such as those involving the CPU, RAM, and display monitor, shall con- form to the system requirements of the OS.
Page 44
• The PC and 3664 should be connected on a one-on-one basis. Multiple 3664 units cannot be connected to the PC at a time. • When a 3664 unit with a different serial No. is connected, the instrument may indicate that a new device has been detected.
Page 45
5.2 Installing the Driver For Windows XP Insert the CD-R supplied with the instrument into the CD-ROM drive. The " " window appears. Found New Hardware Wizard Check " ," then click the [ ] button. Install the software automatically Next Click the [ ] button.
Page 46
5.2 Installing the Driver Click the [ ] button. Finish When the " " window closes, remove the Found New Hardware Wizard CD-R from the CD-ROM drive. 1.800.561.8187 information@itm.com www. .com...
Page 47
5.2 Installing the Driver For Windows 2000 When the " " window appears, click the Found New Hardware Wizard ] button. Next Insert the CD-R supplied with the instrument into the CD-ROM drive. Check " ," then click the [ Search for a suitable driver for my device Next button.
Page 48
5.2 Installing the Driver Check " " (thus deselecting the other items), then CD-ROM drives click the [ ] button. Next Click the [ ] button. Next Click the [ ] button. Finish When the " " window closes, remove the Add New Hardware Wizard CD-R from the CD-ROM drive.
Page 49
5.2 Installing the Driver For Windows Me Insert the CD-R supplied with the instrument into the CD-ROM drive. The " " window appears. Add New Hardware Wizard Check " ," then click the [ ] but- Automatic search for a better driver Next ton.
Page 50
5.2 Installing the Driver For Windows 98SE When the " " window appears, click the Add New Hardware Wizard ] button. Next Check " ," then click the [ Search for the best driver for your device Next button. Insert the CD-R supplied with the instrument into the CD-ROM drive.
Page 51
5.2 Installing the Driver Check " " (thus deselecting the other items), then click CD-ROM drive the [ ] button. Next Click the [ ] button. Next Clicking the button initiates copying of the file. 1.800.561.8187 information@itm.com www. .com...
Page 52
5.2 Installing the Driver When the following window subsequently appears, click the [ Finish button. When the " " window closes, remove the Add New Hardware Wizard CD-R from the CD-ROM drive. 1.800.561.8187 information@itm.com www. .com...
6.1 Measurement Specifications Specifications 6.1 Measurement Specifications Optical-power Unit: W/dBm measurement Range selection Automatic and manual Accuracy ± 0.7% (± 5% in combination with an optional optical sensor) Maximum-value Displays the maximum value among the current measurements hold Minimum-value Displays the minimum value among the current measurements hold Average-value Displays the moving average for the set number of averaging...
Page 54
3664 is running on the battery. • Setting backup Saves the settings when the power is turned OFF, and starts up the 3664 with the saved settings when the power is turned ON again. • Battery check Displays the battery indicator when the supply voltage falls below 4.0 V...
6.2 General Specifications 6.2 General Specifications Rated supply • 1.5 V DC × 4 (LR6 alkaline batteries × 4) voltage • AC Adapter 9 V DC, 0.2 A Model 9445-02 AC ADAPTER or Model 9445-03 AC ADAPTER: Rated supply voltage: 100 to 240 V AC (Voltage fluctuations of ±10% from the rated supply voltage are taken into account.), 50/ 60 Hz, Maximum rated current 250 mA) Maximum rated...
Page 56
6.2 General Specifications Accessories Model 9445-02 AC ADAPTER (UL, SA10-9010N, SINO-AMERICAN) or Model 9445-03 AC ADAPTER (CEE, SA10-9010G, SINO-AMERI- ..................1 CAN) Model 9094 OUTPUT CORD........... 1 Driver CD-R ................1 LR6 alkaline batteries .............. 4 USB cable ................1 Strap ..................
7.1 Cleaning Maintenance and Service Never modify the instrument. Only Hioki service engineers should dis- assemble or repair the instrument. Failure to observe these precautions may result in fire, electric shock, or injury. 7.1 Cleaning 7.1.1 Cleaning of the 3664 To clean the instrument, wipe it gently with a soft cloth moistened with water or mild detergent.
• When sending the instrument for repair, remove the batteries and pack carefully to prevent damage in transit. Include cushioning material so the instrument cannot move within the package. Be sure to include details of the problem. Hioki cannot be responsi- ble for damage that occurs during shipment. 1.800.561.8187 information@itm.com...
See Section 7.4.1 System Reset (page 59) If the system reset does not solve the prob- lem, the 3664 may be malfunctioning. Contact your dealer or Hioki representative. Err2 Setting-data error There is a problem with the setting data.
Page 60
3664 (1.9999 W). "no SEnS" Sensor disconnected A sensor is not connected. Connect a sen- sor. The 3664 cannot be operated without a sensor connected. 1.800.561.8187 information@itm.com www. .com...
7.4 Reset 7.4 Reset There are three types of reset operations for the 3664. • System reset Returns all settings to their defaults • Setting-data reset Returns all settings except those for the wavelength data to their defaults • Measurement-wavelength memory reset Returns the measurement-wavelength data stored in the mea- surement-wavelength memory to its default state.
7.4 Reset 7.4.3 Measurement-Wavelength Memory Reset With an optional optical sensor connected to the 3664, while holding down the key and key, turn ON the λ power. "CLr" and " " start blinking, and the measurement-wave- λ length data is returned to the default wavelength setting of the connected sensor.
Tools and materials: Four AA alkaline batteries (LR6) and a Phillips screw- driver Make sure the power to the 3664 is OFF. Disconnect all cables. Turn over the 3664 and loosen the screw on the battery cover.
Appendix Explanations Optical-power measurement Assuming that the energy of the input light measures E [mW], the measured value P is expressed as follows. E [mW] P [dBm] = 10log 1 [mW] P: Measured value [dBm] E: Energy of input light [mW] APPX 1.800.561.8187 information@itm.com...
Model 9742 OPTICAL SENSOR Optical sensor for the 3664 Model 9742-10 OPTICAL SENSOR Optical sensor for the 3664 Model 9246 CARRYING CASE Carrying case holding the 3664, the complete accessory set, and an optional optical sensor 1.800.561.8187 information@itm.com www. .com...
Need help?
Do you have a question about the 3664 and is the answer not in the manual?
Questions and answers