General Specifications
Size (H x W x D) 18.5 cm x 10.0 cm x 5.5 cm
(7
1
/
4
in x 4 in x 2
1
/
8
in)
Weight 0.4 kg
(0.9 lb)
Temperature operating -10 °C to 50 °C
(14 °F to 122 °F
)
storage -40 °C to 70 °C
(-40 °F to 158 °F)
Relative humidity 0 % to 95 % non-condensing
Standard Accessories
User guide, Certificate of Calibration, instrument stickers in six languages, AC
adapter, connector adapter (FOA-XX), three AA batteries, wrist strap, alcohol
cleaning pads.
Safety
21 CFR 1040.10 and IEC 60825-1:1993+A1:1997+A2:2001:
CLASS 1M LASER PRODUCT
Model FOT-302 FOT-302X
Power meter port
2
Ge GeX
Power range (dBm)
3
10 to -60 26 to -50
Range displayed (dBm) Down to -65 Down to -50
Number of calibrated wavelengths
4
10 10
Power uncertainty
5
± 5 % ± 1 nW ± 5 % ± 10 nW
Resolution (dB) 0.01
6
0.01
7
Automatic offset nulling
8
Yes Yes
Warmup time (s)
9
00
Display units dB/dBm/W dB/dBm/W
Automatic wavelength recognition
10
Yes Yes
Screen refresh rate (Hz) 3 3
Tone detection (Hz) 270, 1 k, 2 k 270, 1 k, 2 k
Battery life (hours) (typical) 260 260
Warranty and recommended 3 3
calibration interval (years)
Notes
1. Guaranteed unless otherwise specified.
2. All specifications valid at 1550 nm and 23 °C ± 1 °C, with an FC connector.
3. In CW mode; sensitivity defined as 6 x rms noise level.
4. Wavelengths: 830 nm, 850 nm, 980 nm, 1300 nm, 1310 nm, 1450 nm, 1490 nm,
1550 nm, 1590 nm and 1625 nm.
5. Traceable to NIST; FOT-302X: up to 20 dBm.
6. From 10 dBm to -50 dBm.
7. From 26 dBm to -35 dBm.
8. Power of > -40 dBm for FOT-302, and of > -25 dBm for FOT-302X.
9. For ± 0.05 dB, for temperatures > 18 °C.
10. At 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm and 1625 nm;
power > -50 dBm for FOT-302, and > -40 dBm (typical) for FOT-302X.
11. All specifications valid at 23 °C ± 1 °C, with an FC connector.
12. rms for lasers and -3 dB width for LEDs; typical values for LEDs.
13. After 15 minutes warmup; expressed as ± half the difference between the maximum
and minimum values measured during the period, with an APC connector on the power
meter.
14. Typical autonomy in Auto mode.
Model
11
23BL 234BL 235BL 12D 01-VCL
Central wavelength (nm) 1310 ± 20 1310 ± 20 1310 ± 20 850 ± 25 850 ± 20
1550 ± 20 1550 ± 20 1490 ± 10 1300 +50/-10
1625 ± 15 1550 ± 20
Spectral width (nm)
12
≤ 5 ≤ 5 ≤ 5 50/135 ≤ 1
Output power (dBm) ≥ 1/≥ 1 ≥ 1/≥ -3/≥ -5 ≥ 1/≥ -4.5/≥ -3 ≥ -18/≥ -18 (62.5/125 μm) ≥ -3 (50/125 μm)
Power stability (dB)
13
8 hours ± 0.10 ± 0.10 ± 0.10 ± 0.10 ± 0.25
Battery life (hours)
14
120 100 120 120 250
Automatic wavelength recognition Yes Yes Yes Yes Yes
Tone generation (Hz) 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k
Warranty and recommended calibration interval (years) 3 3 3 3 3
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