Fluke DTX-1800, Technical Reference Handbook

Page: 357 / 398

Maintenance and Specifications
Specifications
14-31
14
DTX-MFM2/SFM2/GFM2 Fiber Module
Specifications
Power Meter Specifications
Input connector Interchangeable connector adapter (SC standard)
Detector type InGaAs
Calibrated wavelengths 850 nm, 1310 nm, 1550 nm
Power measurement range 0 dBm to -60 dBm (1300/1310 nm and 1550 nm)
0 dBm to -52 dBm (850 nm)
Display resolution dB, dBm: 0.01
Linear (µW): >400, >40, >4, >0.4,
≤
0.4: 1, 0.1, 0.01, 0.001, 0.0001
Power measurement uncertainty (accuracy)
±
0.25 dB
1
Measurement linearity
(18
°
C to 28
°
C constant temperature)
1300/1310 nm and 1550 nm:
±
0.1 dB
2
850 nm:
±
0.2 dB
3
Re-calibration period 1 year
Display update rate 1 reading per second
1. Under the following conditions:
•
Power level: -20 dBm, continuous wave
•
At 850 nm: 62.5/125 µm fiber with 0.275 NA
•
At 1310 nm and 1550 nm: 9/125 µm
•
Ambient temperature: 23 o C ±5 o C
2. Linearity for 1310 nm and 1550 nm:
•
Between 0 dBm and -55 dBm:
±
0.1 dB
•
<
-55 dBm:
±
0.2 dB
3. Linearity for 850 dBm:
•
Between 0 dBm and -45 dBm:
±
0.2 dB
•
<
-45 dBm:
±
0.25 dB