Ljósmælir OPM4 series
OPM4 Optical Power Meter
The Noyes OPM4 from AFL Telecommunications is a handheld optical power meter
designed for measuring optical power in Premises, Telco, or Broadband networks and for
performing insertion loss measurements on multimode or single-mode fiber optic links.
The OPM4 features automatic wavelength identification and switching (Wave ID)
when used with Noyes OLS series light sources, multiple test Tone detection for fiber
identification, and stores optical references for each calibrated wavelength. A large dualwavelength LCD display with backlight shows measured power [dBm or µW] or insertion
loss [dB], calibrated wavelengths [nm], tone signal [Hz], wavelength ID, and estimated
remaining battery life.
The OPM4 optical input port accepts a variety of Noyes thread-on style adapter caps
(ordered separately) to meet a wide range of testing requirements. The OPM4 offers a fiveminute auto-off feature and long battery life from common AA alkaline batteries.
The OPM4 is fully N.I.S.T. traceable.
•• Handheld, rugged, lightweight
•• Multimode or single-mode applications
•• Wave ID (auto identification & switching)
•• Multiple-wavelength testing
•• 270Hz, 330Hz, 1kHz, 2kHz Tone detection
•• Large LCD with backlight
•• Power measurements in dBm or μW;
insertion loss in dB
•• Reference power level storage
•• Automatic power-off function
•• Battery gauge
•• Long battery life with 2 x AA alkaline
•• N.I.S.T traceable
•• Premises (Ge), Telco (InGaAs), and
Broadband (+26 dBm) models
•• Passive Optical Networks (PON) testing
660, 780,
850 nm
850, 1300,
1310, 1550 nm
850, 1300, 1310,
1550, 1625 nm
850, 980, 1310, 1490,
1550, 1625 nm
Detector type
Silicon (Si)
Germanium (Ge)
Filtered InGaAs
Measurement range
+6 to -70 dBm
+6 to -60 dBm
+10 to -75 dBm
+26 to -50 dBm
Tone detect range
+6 to -45 dBm
Wavelength ID range
+6 to -50 dBm
+10 to -50 dBm
+6 to -45 for 850 nm +10 to -45 for 850 nm
+6 to -30 dBm
+6 to -25 for 850 nm
+6 to -50 dBm
+6 to -45 dBm for 850 nm
+6 to -30 dBm
+6 to -25 dBm for 850 nm
± 0.25 dB
0.01 dB
Measurement units
dB, dBm, μW
2 x AA batteries
Battery life
300 hours
Operating temperature
-10 to 50°C, 90% RH (non-condensing)
Storage temperature
-30 to 60°C, 90% RH (non-condensing)
Size (H x W x D)
14.0 x 8.1 x 3.8 cm (5.5 x 3.2 x 1.5 in)
0.26 kg (0.58 lb)
* Accuracy measured at 25ºC and -10 dBm per N.I.S.T. standards.
All specifications at 25°C
Ordering Information
All OPM4 models
OPM4 optical power meter, 2 x AA batteries, protective rubber boot, user’s guide, and
carry case.
Test & Inspection
© 2004-2007, AFL Telecommunications, all rights reserved. OPM4-30-2000 Revision C, 12.20.07
Specifications are subject to change without notice.
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