Handheld Optical Power Meter
1.General
Optical Power Meter is a latest self-developed test instrument which to be used for absolute optical power measurement as well as loss relative measurement of fiber optic. It features ingenious appearance, large LCD display, auto-off function optional, wide range of power measurement, high accurate test precision, user automatic self calibration function and universal adapters. It is an ideal test instrument for optical fiber solution.
The Type of Handheld Optical Power Meter：
A Type---Wavelength：850nm、980nm、1310nm、1490nm、1550nm、1625nm；
Measurement Range：-70～+6dBm；
C Type---Wavelength：850nm、980nm、1310nm、1490nm、1550nm、1625nm
Measurement Range：-50～+26dBm。
2.Specification
| Type | A | C |
| Wavelength range | 850～1625nm |
| Detector | InGaAs |
| Measurement Range | -70～+6dBm | -50～+26 dBm |
| Uncertainty | ±0.25dB |
| Resolution | Linear：0.1%;Non-linear：0.01dBm |
| Operating Temperature | -10℃～+60℃ |
| Storage Temperature | -25℃～+70℃ |
| Auto-off time | 10min/on |
| Battery working time | ≥130h |
| Power Supply | 3pcs AA1.5V battery |
| Weight | 225g |
| Dimension | 148×74×28（mm） |
Instruction：
① Wavelength Range:Providing a standard operating wavelength λ from λmin to λmax, within the Wavelength range, optical power meter works well within specifications.
② Power measurement range:can measure the range of Maximum power within specifications.
③ uncertainty:The error of test result between defined optical power and standard one.
3．Components
① Handheld optical power meter-----------------------------------------------1pcs
② User Manual------------------------------------------------------------------1pcs
③ Protect jacket-----------------------------------------------------------------1pcs
④ 1.5V AA battery---------------------------------------------------------------3pcs
⑤ Cleaning Cotton Swab-------------------------------------------------------1bag
4．Functions
4.2 Button Instruction
| Sign | Function |
| Fn | 1nm wavelength variable |
| λ（←） | Choose Wavelength / left key |
| REF（↑） | to measure the relative power value/ up key |
| | Power on&off key/Auto-off function |
| ZERO（↓） | to realize Self-calibrated Zero/down key |
| HOLD（→） | Hold key/right key |
5．Usage Directions
5.1 Power on/off
1.Press key on panel board,LCD display,optical power meter turned on.
2.Keeping press key for 3seconds,it is turned off.
5.2 Absolute Power Measurement
1.Switch on Optical Power Meter。
2.pressλkey to choose wavelength.
3.Insert measured light,it will the current measuring data on screen,including absolute power linear or Non-linear.
5.3 Relative power measurement
1.choose wavelength
2.In Absolute power measurement mode,insert measured light, the current power value.press REF key,the current power value is changed into the current reference value(in dBm as a unit),the current absolute power value and relative power value will display 0dB.
3.Insert another measured light,it displays its current absolute optical power value and relative optical power value.
5.4 Special Function
Optical power meter has two working mode:Operating mode and calibrating mode,Usually it is in operating mode.
5.4.1 Calibrating Mode
Pressλ+ HOLD key at the same time,it is in calibrating mode, “C” will be on the top of right。If pressλ+ HOLD key again,it is in operating mode,no display on the top.
Calibration methods in Calibrating mode:
| Function | Key |
| increase0.05 | (i) Ref |
| reduce0.05 | Zero |
| Choose wavelength | λ |
| Factory Reset | REF+λ |
Notice: In “calibration mode”, if any deviation or error is appeared in calibration mode, please press “REF +λ” key at the same time, to restore factory setting.
