JW3303 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, therefore, JW3303 can be used in the digital system of communication devices (such as: PHD, SDH) and also in the system of adopting analog modulation (CATV) Main Features● stepwise attenuating by circumgyrated dial: attenuating step 0.05dB● Provide with the function of displaying dB and dBm attenuating value● 10 minutes Auto-off function can be activate and deactivate with keypad operation.● After off the instruments, the system will have the memorizing of the attenuating value and the attenuating step, in order to restore the system back to the previous shut down state when open the instruments next time● Portable, rugged, lightweight; Easy to use. Applications● Telecom Maintenance● CATV Maintenance● Comprehensive cable construction system● Optical instruments research and development● Optical communication education and lab testing● Other optical project SpecificationsType JW3303Attenuating wavelength Range 1260~1650nmFiber Model 9/125um SMOptical Connector FC/PCCalibrated wavelengths 1310/1490/1550/1625nmMeasurement Range 2~60dBResolution 0.05dBMinimize Insertion Loss <2.0dBLinearity ±0.5dBRepeating ±0.2dBAttenuating Accuracy ±0.8dBReturn Loss at Input/ Output >35dB(typical value40dB)Max input +20dBmDisplaying type lattice 128*64 black and white, white back ground lightRechargeable batteries 8.4VPower supply adaptor 8.4VOperation temperature 0~40℃Operation Time 40 hoursStorage temperature -10~60℃humidity 0~85%(non- condensation)Dimensions 180X90X36.5Weight 427g Standard PackagesMODEL INCLUDESJW3303 JW3303 Main Body, Protective Rubber Boot, Rechargeable battery, Power Supply Adaptor, Instruction Manual and Cotton Swabs and Rigid hard carrying case. ติดต่อ บริษัท เอ็กทรีมอินทิเกรชั่นเอ็นจิเนียริ่ง จำกัด พีรพัฒน์ สุไวศยวรรรณ E-mail [email protected]โทร กดเพื่อดูเบอร์โทร xxxxxx083อ่านเพิ่มเติม