Ascentac OPM120 User manual

OPM120
Optical Power Meter
User Guide _ Version 1.0
Ascentac Inc.
www.ascentac.com
T [phone]
F [phone]
E [e-mail]

Copyright
© Copyright 2020 Ascentac Inc (hereinafter Ascentac). All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system or
transmitted in any form or by any means, electronic, mechanical, photocopying,
recording or otherwise, without prior permission of Ascentac.
Disclaimer
Ascentac shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of
this user guide.
The material in this document is subject to change without notice. For the latest
information regarding this product, please visit our website at
http://www.ascentac.com.
All other trademarks and registered trademarks which appear herein are for
reference purposes only and are the property of their respective owners.

Warranty
Ascentac warrants the product against defects in material and workmanship within
(1) year from the date of delivery. Under normal use and service, the product will be
free from physical defects in material and workmanship during the warranty period,
or the product will be repaired or replaced as determined solely by Ascentac.
During the warranty period, you and Ascentac will pay the shipping costs for
repairing products for one time respectively. Products returned without proof of
purchase or with expired warranty will be repaired or replaced by Ascentac’s
decision. You shall pay the charges, including maintenance cost, shipping,
insurance, duties, taxes, import fees or others which may be caused.
This warranty provides you with specific legal rights. You may have additional rights
which may vary from state to state and country to country. Because of individual
state and country regulations, some of the above limitations and exclusions may not
apply to you.
If any of the following conditions takes place, the warranty shall be null and void.
Defects or malfunction caused by human factors, accident, improper use not
conforming to product manual instructions, abuse or unauthorized alteration,
modification or repair of the product.
The label with S/N has been altered or damaged.
Notice: Ascentac makes no warranty of any kind with regard to the content in this
document, including, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose.

Service & Support
If you have any questions or need any assistance, please contact our service
center.
Kaohsiung Office
TEL: [phone]
FAX: [phone]
Address: 11F.-1, No.80, Minzu 1st Rd., Sanmin Dist., Kaohsiung City 80761, Taiwan
(R.O.C.)
Please prepare below information before you contact us and describe the
problems.
Product model and S/N
Warranty information

i
Content
1. Safety Information .....................................................................................................................1
2. Introduction ................................................................................................................................2
2.1 Features .............................................................................................................................3
2.2 Application........................................................................................................................3
3. Layout .........................................................................................................................................4
3.1 Appearance .....................................................................................................................4
3.2 Instruction ..........................................................................................................................5
3.3 LED Indicator .....................................................................................................................6
4. Display.........................................................................................................................................7
4.1 Optical Power Meter (OPM) ...........................................................................................7
4.2 Visual Fault Locator (VFL) (Option) ................................................................................7
5. Operation ...................................................................................................................................8
5.1 Power-on............................................................................................................................8
5.2 Power-off ...........................................................................................................................8
5.3 Switching Function Modes ..............................................................................................8
5.5 Turning on VFL (Option) ...................................................................................................9
5.6 Turning off VFL (Option) ...................................................................................................9
5.7 Setting VFL Modulation Output (Option) ....................................................................10
5.8 Setting Wavelength........................................................................................................11
5.9 Setting Reference Value (Default: OFF)......................................................................12
5.10 Cancelling Reference Value ......................................................................................12
5.11 Setting Measurement Units (Default: dBm) ...............................................................13
5.12 Optical Power Monitoring ...........................................................................................14

ii
5.13 Saving Measurement Result........................................................................................15
5.14 Loading Measurement Result .....................................................................................17
5.15 Device Setting.................................................................................................................19
5.15.1 Date......................................................................................................................19
5.15.2 Time ......................................................................................................................20
5.15.3 Power Saving (Default: 10 mins) .......................................................................21
5.15.4 Screen Saving (Default: 5 mins)........................................................................22
5.15.5 Brightness (Default: Mid)....................................................................................23
5.15.6 Battery Charge (Default: OFF)..........................................................................24
5.15.7 Low Power Thr. (Default: -30dBm) ....................................................................25
5.15.8 Loss Thr. (Default: 3dB) .......................................................................................26
5.15.9 Device Info. .........................................................................................................27

1|OPM120
1. Safety Information
Read all safety information carefully before using this product to ensure personal
safety and proper use.
Assure the power supply conforming to the specification of this product and
qualified for the country of use.
Use batteries that meet the specifications of this product.
Do not use damaged power cords, accessories or other peripheral
equipment.
Make sure the product is operated on the permitted ambient conditions.
Never directly look into the optical outputs interface.
Dangerous laser radiation:

2|OPM120
2. Introduction
Ascentac OPM120 Series, Optical Power Meter, provides high accuracy for
optical power measurement in fiber-optic network. It has a wide dynamic range
from +6 to -70dBm or +26 to -50dBm. Offering seven calibrated wavelengths
(85onm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm & 1650nm) makes it ideal for
both singlemode and multi-mode fiber testing. Furthermore, its wavelength can
be automatically selected when it is paired with Ascentac Optical Light source
(OLS200). Technicians are not required to manually set up the calibration
parameter. It speeds up the test and eliminates possible failures of setting.
Ascentac OPM120 Series also has the capacity to analyze the cable status. ‘’Low
Power” alarm reads on screen when the measured value is lower than the
threshold users set up. Test results can be stored up to 1000 records and easily
transferred to PC via USB connection.
Its interchangeable connectors (SC, FC, LC, Universal 2.5mm or 1.25mm) are
dust-and-drop protected. All other common features like relative measurements
and auto-shutdown are included.

3|OPM120
2.1 Features
7 calibration wavelengths (85onm, 1300nm, 1310nm, 1490nm, 1550nm,
1625nm, 1650nm)
Automatic wavelength recognition for time saving and error-free
(Must use with Ascentac OLS200 or OLM300 series)
Analysis of cable status e.g. Low Power (Displayed on screen)
(Threshold can be set up)
Document results and generate reports to PC via USB connection
Generous data storage up to 1000 records
Auto shutdown & backlight sleep mode for extending the battery life
(Programmable)
Option: Function of Visual Fault Locator with CW (Continuous
Wavelength) or modulated tones at 1Hz or 2Hz
2.2 Application
Optical power or loss measurement in telecom or CATV installation and
maintenance

4|OPM120
3. Layout
3.1 Appearance
Front
Side
󰴦
Back
󰴨
󰴧
󰴩

5|OPM120
3.2 Instruction
Button
Function
Description
Power on/off
Long press for two seconds to turn
on/off the meter.
Laser on/off
Long press for two seconds to turn
on/off the laser.
VFL modulation output
Short press to switch modulation output.
CW 1Hz 2Hz CW
Record min. or max. value
of optical power
Short press to record min. or max. value
of optical power.
Optical power monitoring
Long press for two seconds to turn
on/off this function.
Mode switching
Short press to switch mode.
OPM VFL OPM
REF setting
Long press for two seconds to set
reference value.
Measurement unit
selection
Short press to switch measurement unit
or cancel reference value.
Data loading
Short press to load measurement results.
Data saving
Long press for two seconds to save
measurement results.
Wavelength selection
Short press to switch wavelength.
Setting
Short press to access device setting.
Item
Function
Description
1
USB
1. Power supply
2. Charge rechargeable batteries
3. Transfer measured record to PC
2
OPM optical connector
SC, FC, LC, Universal 2.5mm or 1.25mm
3
VFL optical connector
Universal 2.5mm
4
Battery
Dry batteries or rechargeable batteries
(Charged by USB connection):
AAA-size x 4

6|OPM120
3.3 LED Indicator
Item
LED Indicator
LED Status
Description
1
PASS/FAIL
Off
Without setting threshold
Red
Setting threshold
1. Measured value of optical power
is less than low power threshold.
2. With setting REF value, the loss
value is higher than loss threshold.
Green
Setting threshold
1. Measured value of optical power
is equal to or higher than low power
threshold.
2. With setting REF value, the loss
value is equal to or less than loss
threshold.
2
LASER
Off
No emitting light
Red
Emitting light

7|OPM120
4. Display
4.1 Optical Power Meter (OPM)
REF
-20.00 dBm
1310nm
- 15.00 dBm
1kHz
Detected modulation output
(CW, 270Hz, 1kHz, 2kHz)
Max-Min
0.5dB
Measured value
Battery status
OPM Function mode
(OPM)
Low Power
REF valueWavelength
Alarm indicator
Optical power
monitoring
(Max/Min/Max-Min)
4.2 Visual Fault Locator (VFL) (Option)
VFL
1Hz
Modulation output
(CW, 1Hz, 2Hz)
VFL Function mode
(VFL)
Battery status
Laser status

8|OPM120
5. Operation
5.1 Power-on
Press [ ] key for two seconds to turn on the meter.
Startup screen Enter into optical power measurement interface.

1550nm
--.-- dBm
OPM
Note
“--.-- dBm” is displayed when there is no input of optical light source.
5.2 Power-off
Press [ ] key for two seconds to turn off the meter.
5.3 Switching Function Modes
Short press [ ] key to switch function modes.
1310nm
- 15.00 dBm
OPM

VFL
CW
VFL
Note
[ ] & [ ] key are not available in OPM mode.

9|OPM120
5.5 Turning on VFL (Option)
1. Short press [ ] key to switch to VFL mode.
1310nm
- 15.00 dBm
OPM

VFL
CW
VFL
2. Press [ ] key for two seconds to turn on VFL.
VFL
CW
VFL

VFL
CW
VFL
Note
“” refers to emitting light.
5.6 Turning off VFL (Option)
Press [ ] key for two seconds to turn off VFL.
VFL
CW
VFL

VFL
CW
VFL
Note
“” refers to no emitting light.

10 |OPM120
5.7 Setting VFL Modulation Output (Option)
Short press [ ] key repeatedly until the desired modulation output is
displayed. (CW 1Hz 2Hz CW)
Note
Modulation output can’t be selected by [ ] key if the current mode is
OPM mode.

11 |OPM120
5.8 Setting Wavelength
1. Short press [ ] key to switch to OPM mode.
1310nm
- 15.00 dBm
OPM
2. Short press [ ] key repeatedly until the desired wavelength is
displayed.
1550nm
- 15.00 dBm
OPM
Note
1. Wavelength can’t be selected in VFL mode.
2. [ ] key is not available in OPM mode.
3. OPM120 series can automatically recognize the wavelength if the
modulation output of optical light source is 2kHz from Ascentac OLS200
or OLM300 series.
1550nm*
- 15.00 dBm
OPM
2k Hz
Note
“*” behind the wavelength refers to automatic wavelength
recognition.

12 |OPM120
5.9 Setting Reference Value (Default: OFF)
1. Short press [ ] key to switch to OPM mode.
1550nm
- 15.00 dBm
OPM
2. Long press [ ] key for two seconds to set the reference value.
1550nm
0.00 dB
OPM
REF
-15.00 dBm
Note
1. The measurement unit will be dB after setting the reference value.
2. The reference value can’t be set in VFL mode.
3. Long press [ ] key for two seconds under unit mW. The unit of
REF value will be dBm. The unit on display is dB.
5.10 Cancelling Reference Value
Short press [ ] key to cancel the reference value.
1550nm
0.00 dB
OPM
REF
-15.00 dBm

1550nm
- 15.00 dBm
OPM

13 |OPM120
5.11 Setting Measurement Units (Default: dBm)
1. Short press [ ] key to switch to OPM mode.
1550nm
- 15.00 dBm
OPM
2. Short press [ ] key to switch measurement units.
1550nm
- 15.00 dBm
OPM

1550nm
31.62uW
OPM
Note
The measurement units can’t be switched in VFL mode.

14 |OPM120
5.12 Optical Power Monitoring
1. On the display of optical power measurement, press [ ] key for
two seconds to access optical power monitoring.
1310nm
- 15.00 dBm
OPM

1310nm
- 15.00 dBm
Max-Min
0.5dB OPM
2. Short press [ ] key to switch monitoring mode.
Monitoring mode: Max → Min → Max-Min → Max
Definition of monitoring mode:
Max: Record the maximum value of optical power.
Min: Record the minimum value of optical power.
Max-Min: Record the difference of the above value.
3. Long Press [ ] key for two seconds to turn off monitoring mode.
1310nm
- 15.00 dBm
Max-Min
0.5dB OPM

1310nm
- 15.00 dBm
OPM