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FOPM-200 Quick Start Guide
1. Display and Keypad
Figure 1 shows the optical power meter's display and
keypad.
Interchangeable
connector
2
1
4
Figure 1. Display and keypad.
External power/
Recharging LED
DC input jack
Battery fully charged LED
Figure 2. Bottom of power meter.
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FOPM-200 Quick Start Guide
2. Keypad Functions, LCD Functions, and
Battery Indicator Status
Table 1 describes the optical power meter's keys.
Table 1. Keypad functions.
No. Key
Function
1
Switches tester on/off. Press and hold for
more than two seconds while turning on
to disable the auto-off feature.
2
Press to set the wavelength. Select from
six possible wavelengths: 850, 1300, 1310,
1490, 1550, and 1625 nm.
LCD screen
3
Press to select measurement mode. Three
modes are available: dBm for the power
3
value, dB for the relative value, and mw
for the logarithmic value. (Hi/Lo will be
displayed if the measured power value is
5
out of range [-60 to +3 dBm]).
4
Press for less than two seconds to display
the wavelength reference level. Press and
hold for more than two seconds to set a
new wavelength reference level.
5
Press to switch backlighting on/off.
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Page 2
FOPM-200 Quick Start Guide
Figure 2 shows the power meter's LCD display and
Table 2 describes its functions. Table 3 shows the
battery indicator status.
1
8
7
Table 2. LCD functions.
Number
1
2
3
4
5
6
7
8
Table 3. Battery indicator status.
Status
Icon
Full
2 Bars
1 Bar
Empty
* Battery icon flashes when power is almost depleted.
Connect the AC adapter to recharge the battery.
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Page 3
2
3
4
5
6
Figure 2. LCD.
Function
Wavelength reference
AC adapter
Battery charge
Measurement unit
Auto-off
Power value
Frequency
Reference value
Description
Battery at 100% capacity
Battery at 50–75% capacity
Battery at 25–50% capacity
Battery at 0–25% capacity*
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