The NOYES FiberTech FT-PM3 and FT-PM4 are basic Optical Power Meters designed for use in performing insertion loss measurements in single-mode and multimode optical networks. The FT-PM3 is a general-purpose meter with an input range of +6 dBM to -50 dBm and is calibrated at 850, 1300, 1310, 1490, 1550 and 1625 nm. The FT-PM4 is a high power meter with an input range of +26 dBM to 30 dBm. The FT-PM4 is calibrated at 850, 980, 1310, 1490, 1550 and 1625 nm. All models can detect CW and 270, 330, 1000 or 2000 Hz tones. FT-PM3 and FT-PM4 Optical Power Meters are each factory-equipped with an FC adapter. Optional SC and ST adapters are also available. FiberTech Optical Power Meters are designed for ease of use. Each is equipped with a large, easy-to-read LCD, which shows the input power level, the remaining battery capacity, and the status of the automatic power-off function. A user-selectable backlight
enables the FT-PM3 and FT-PM4 to be used in dimly-lit spaces. FiberTech Optical Power Meters will operate for approximately 300 hours from a pair of ordinary AA alkaline batteries. An automatic power-down circuit optimizes battery life by
shutting off after 5 minutes of operation. When paired with a NOYES Optical Light Source (such as the FiberTech FT-LS20, Contractor CSS1-SM or CSS1-MM, OLS1, OLS2, OLS4 or OLS7), FiberTech Optical Power Meters provide installers, technicians, and field engineers with accurate, stable measurements of optical power levels and insertion loss characteristics. In addition, the tone detection capabilities also support optical fiber identification tasks when used with an appropriate light source. The FT-PM3 and FT-PM4 are fully N.I.S.T. traceable and comply with CE and ROHS requirements.