Parameter	Parameters
Performance Specifications
Channel Count	Single/Dual Channel
Dynamic Range (dB)	> 40
Wavelength Range (nm)	1020~1650
Measurement Accuracy	≤±0.2dB (PER:0~30dB, Pi≥10μW) ≤±0.3dB (PER:31~35dB, Pi≥10μW) ≤±0.5dB (PER:36~40dB, Pi≥100μW)
Input Power Range (μW)	0.01~2000
Effective Resolution (dB)	0.03
Electrical/Mechanical Interface
Data Update Rate (readings/channel/s)	1~2
Power Supply (V, Hz)	220, 50, AC
Fiber Connector	FC/PC
Operating Temperature (℃)	10 – 40

 

 

PERM series single/dual-channel extinction ratio meter can independently perform polarization extinction ratio test, optical power test, digital calibration, automatic range selection. There is a USB(RS232) interface for connecting with computer or manufacturing execution system (MES), and it is convenient for data collection and upload. It is widely used in optical communication equipment, optical fibre, optical passive device and optical active device testing, wide power range, high testing accuracy, cost-effective and reliable.

 

Specifications

Operation

Parameter settings

Parametric	Units	Specifications
Channel number	Single/Dual Channel
PER dynamic range	dB	＞40
Wavelength range	nm	1020~1650
PER accuracy	dB	≤±0.2 (PER:0~30dB, Pi≥10uW)
	dB	≤±0.3 (PER:31~35dB, Pin≥10uW)
	dB	≤±0.5 (PER:36~40dB, Pin≥100uW)
Input power range	uW	0.01~2000
Effective resolution	dB	0.03
Data update rate	Times/channel/second	1~2
Optical connector		FC/PC
Power supply		AC 220V
Working temperature	℃	10-40

Click 'ACTIVE' to enable the device, press 'SET' to enter the parameter setting interface:

1.Channel：

One CH Two CH

2.Wavelength：

1310nm 1550nm

3.Test Mode：

Mode1 Mode2

Mode3

Use the up and down buttons to select the desired parameters, and click the 'Enter' button to select the desired parameters. Set the working channel, working wavelength, and measurement mode in sequence. After setting the working parameters, click "SET" again to complete the parameter settings.

 

Measurement mode

In order to facilitate the user's data processing and recording, the device can provide three measurement and display modes: classical mode, extreme value mode, and power mode.

 

1) Classic Mode:

Single-channel mode Dual-channel mode

 

2) Extreme value model:

Single-channel mode Dual-channel mode

 

3) Power mode

Single/Dual Channel

Classic mode, you can directly read out the real-time extinction ratio and power value of each channel, which is the most commonly used mode by customers; Extreme value mode only displays the value of polarisation extinction ratio, but it can measure the maximum and minimum values of extinction ratio in a certain period of time, which is convenient for customers to monitor the long-time stability of the device under test; Power mode provides customers with a means of measuring the power beam ratio, in which P1/P2 is the beam ratio. The three modes can be set through the "SET" to switch freely.

 

Instrument calibration

In order to improve the accuracy, extinction ratio meter open calibration function, click 'CALIBR.' into the calibration mode, enter the password, you can adjust the size of the number through the up and down buttons, after the password is passed, enter the calibration menu. For the stability and accuracy of the instrument, the calibration function is not open to customers at present, if customers need, please contact us.

 

Remote control

In order to facilitate the customer remote and automatic data acquisition, the instrument is also reserved for the USB serial port, the serial port parameters can be set through the panel button: "REMOTE", please contact us to obtain communication protocols.

 

Security

In order to increase the service life of the instrument, the device is set with automatic shutdown protection function, in the continuous 10 seconds no light state, the device automatically stops the measurement, to be accessed after the light signal to re-click the 'ACTIVE' button to normal measurement.

 

Precautions

1). Try to keep the input power voltage as stable as possible during the working process of the equipment, and a power supply regulator can be added, which is conducive to prolonging the service life of the instrument.

2). When the instrument is switched on, the power cable should be connected first, and then the optical input signal.

3). When the instrument needs to be switched off, the input signal should be switched off first, and then unplugged from the power cord.

4). Attention should be paid to the cleanliness of the fibre optic connectors during use so as not to affect the measurement accuracy of the instrument.

5). The equipment should be kept dry and clean, and attention should be paid to protecting the outer surface of the instrument to avoid being scratched by hard objects. In the hot season or humid climate, attention should be paid to ventilation and heat dissipation.