Jonard Tools FPM-55 Bruksanvisning
                    Jonard Tools
                    
                    Mätutrustning
                    
                    FPM-55
                
                                
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FPM-55
OPTICAL POWER METER W/ STORAGE
INSTRUCTION MANUAL
Unit will not turn on Faint 
display on the LCD screen
1. Power is OFF
2. The battery power is too low
1. Turn the device ON by 
pressing the Power Key
2. Replace the batteries
Inaccurate Measurements 1. Optical connector is not clean
2. Incorrect fiber connection
1. Clean the optical connectors 
with contact cleaner
2. Ensure you are using the 
correct connector and reattach 
the fiber
Problem Possible Cause Solution
Keys and Functions (Continued):
  Delete Key – Delete Data/Cancel
While viewing a data entry, you can press the Delete Key to delete the data.
While in Saving Mode, press the Delete Key to delete the current saved data
  – Switch between dBm, dB, and W measurementsUnits Key 
Press the Units Key to switch between absolute measurement (dBm), relative 
measurement (dB), and xW of the optical power.
mW to dBm Conversion: 10 log(mW)=(dBm)
mW, uW, nW Conversion: 1 mW=103 uW=106 nW
   – Stores the current power value as the reference valueREF Key
Press the REF Key to store the current power value as the reference value. When pressed, 
the reference value will be displayed in the top-right of the screen with “Ref” displayed 
next to it.
Relative Value = l︱Absolute Value︱l -︱l Reference Value︱l
         Intelligent Backlight Controller LEDLDR LED – 
If this LED is on, then the unit is in LDR Intelligent Backlight Control Mode. While in this 
mode, the unit will automatically adjust the backlight based on the outside lighting, which 
helps save power.
         – Backlight Mode Indication LED B/L SET LED
If the LED is green, then the FPM-55 is in LDR Intelligent Backlight Control Mode. 
If the LED is red, then the FPM-55 is in Key-Control Mode 
Indicate backlight control mode. Green light indicate that “LDR”intelligent backlight control 
mode, Red light indicate that key-control mode
Electric/electronic/battery powered products & force gauges  1 Year
Product Type  Warranty Period
Jonard Tools Warranty:
Troubleshooting:
Produktspecifikationer
| Varumärke: | Jonard Tools | 
| Kategori: | Mätutrustning | 
| Modell: | FPM-55 | 
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                         29 December 2024
                        
                    
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