1. Introduction:
TM590 series Fiber Optic Multimeter is a newly designed tester, which integrates the optical power meter and optical light source function in one unit. 
It  can separately work as power meter or light source; or simultaneously work as power meter and light source together.
 
2. Features
Ø  Integrates the optical power meter and optical light source function in one unit.
Ø  User Self-calibration Function
Ø  Relative power measurement dB.
Ø  Rechargable lithum battery with big capacity of 1500mA  ,can work continuously
for 150 hours after fully charged ,
Ø  Lower power indicator
Ø Auto-off function 
Ø  LED Backlight Display Selection
Ø  Backlight function
Ø  OPM: FC/SC Changable conenctors，OLS: FC orSC connector
 
3. Specifications

Optical Power Meter :

Wavelength（nm）	800～1700
Detector type	InGaAs
Measurement Range (dBm)	-70～+10	-50～+26
Uncertainty (dB)	±5%
Calibration Wavelength (nm)	850,1300,1310,1490,1550,1625
Resolution (dB)	Linearity (dB)：0.1% Logarithmic power display：0.01dBm
Operating Temperature(°C)	-20～+70
Storage Temperature(°C)	-30～+80
Auto-off function（min）	5
Working Time (h)	150(Only OPM)
Dimensions（mm）	175×79×40
Power Supply	3.7V  1500mAH。
weight（g）	260

3.2 Optical Light Source

Detector type	FP-LD
Calibration Wavelength (nm)	850/1300nm , 1310/1550nm
Connector type	FC（SC/ST optional）
Output Power(mw)	≥-15dBm@850/1300nm ≥-6dBm@1310/1550nm
Stability (dB,30mins@20°C)	±0.04@20℃
Frequency Identification Range	CW/270Hz/1KHz/2KHz
Fiber Type	SM,MM