Additional Information

Battery

There is a battery indicator on the screen to show the remaining charge. There are four possibilities the indicator may show, full, with 2 blacks, with 1 black and empty. An empty battery indicator means the power is almost out and you need to replace it with a new one. To replace the battery, please remove the battery plate on the back of the instrument with a screwdriver.

When the battery charge is extremely low to supply the necessary power, the instrument will automatically switch off.

Note:

• The AC indicator is not displayed when power is supplied by battery.
• To eliminate the possibility of acid leakage, please take out the battery if the unit is not used for a long time.

AC operation

If the instrument is mainly used at one location, e.g. in a laboratory or test department, the AC adapter can be used to power it instead of batteries. There is a DC input jack on the bottom side of the instrument casing into which the output cable of the AC adapter is plugged. And when the AC adapter is plugged in, the AC Indicator on the LCD will be displayed.

Note: Make sure that the operating voltage of the AC Adapter/Charger is the same as the local AC line voltage.

Operation of the Instrument

The key definitions in different modes

Controls and Connectors

No.	Key	Function
1.		Short-keypress is to increase the attenuation step by 0.05 dB Long-keypress is to increase the attenuation step by 1 dB
2.		Shift wavelength between 1310 nm and 1550 nm
3.		In “Normal mode”: Long press to enter the “pre-setting values mode”. Short press to change the current value into the pre-setting values. In “Pre-setting value mode”: Short press to cancel setting and go back to “normal mode”; Long term press to save the setting and go back to “normal mode”
4.		Short-keypress is to decrease the attenuation step by 0.05 dB Long-keypress is to increase the attenuation step by 1 dB/step
5.		Long press to enter the “REF mode”. Short press to check the reference value under “REF mode”.
6.		Short Press to Turn on or off the LCD background light Long term press in “Pre-setting value Mode” to set the pre-setting values into default values.
7.		Short keypress to turn on the instrument and long press for more than 2 seconds to close the Auto-off function.

LCD Display

Back of the Instrument

Turning the Instrument On and Off

Press the “ON/OFF” Key briefly, the instrument powers on. If it fails, please check the battery capacity. The instrument powers off after pressing the “ON/OFF” Key.

Note: Auto-off function

• The instrument powers off automatically if no keypress in 10 minutes.
• Press the “ON/OFF” key for about 2 seconds to power on the instrument with “Auto-off” function deactivated.

Turning on the Background Light

Short press key to open or close the background light

Operation in “Normal Mode”

Setting the Wavelength

Short keypress the key, you can shift the wavelength between 1310 nm and 1550 nm and the wavelength indicator will change accordingly. The attenuation value will not change when the wavelengths are shifted.

Setting the Attenuation Value

You can press or key to adjust the attenuation value. Short-keypress is to increase or decrease the value of 0.05 dB/step; Long-keypress is to increase or decrease the value of 1 dB/step.

Operating in “Ref Mode”

Entering “Ref Mode” and Exiting “Ref Mode”

Long-keypress (>2s) in “Normal Mode” to enter the “REF Mode”.

Long-keypress (>2s) in “Ref Mode” to exit the “REF Mode”

Check the current REF Value

Short-keypress the key to check the reference value under “REF” mode.

Change Attenuation Value in REF Mode

You can press or key to adjust the attenuation value. Short-keypress is to increase or decrease the value of 0.05 dB/step; Long-keypress is to increase or decrease the value of 1 dB/step.

Operation in “Pre-setting values modes”

Entering “Pre-setting Values Mode” and Exit “Pre-setting Values Mode”

Long-keypress (>2 seconds) in “Normal Mode” to enter the “Pre-setting values mode”

Long-keypress (>2 seconds) to save the setting and exit “Pre-setting values mode”

Short-keypress (>2 seconds) to cancel the setting and exit “Pre-setting values mode”

Choosing the Pre-setting value

Press or to choose the pre-setting value, and long press key to save the current value as the new value for the pre-setting value. This instrument can set nine pre-setting values for each wavelength. In the screen, there is a number to indicate the pre-setting number.

Setting Pre-setting Values into nine “Default” Values

Long-keypress , it will change the nine pre-setting values into the nine “DEFAULT” values, which are 0 dB, 20 dB, 30 dB, 40 dB, 50 dB, 60 dB, 70 dB, 80 dB.

Applications

• Maintenance for telecom system
• Maintenance for CATV System
• Fiber optic transmission system and Test lab

Standard Accessories

• FC/PC Adapters – 2
• SC/PC Adapters – 2
• Rechargeable batteries – 2
• AC/DC adapter – 1
• Ceramic Sleeves- 3
• Carrying bag – 1
• User manual – 1
• Test report – 1

Optional Accessories

• ST adapters – 2
• Male FC to female LC adapter for LC connector