Toshiba lf546 User Manual

 
 

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 33 − 

 

6 F 8 A 0 9 3 4  

 

 

„  Do not touch the terminal board when power 

is supplied. 

„  Do not touch the main body when high 

temperature fluid is being measured. 

 

 

Touching the terminal board 
when power is supplied can 
cause electric shock. 

 

 

The fluid raises the main body 
temperature and can cause burns. 

Follow the procedure described below to prepare before starting the flow measurement   

 

 

   

Check the items listed below 

„  Check the wiring between the converter and related instruments. 

„  Make sure all the bolts of connection flanges on which the flowmeter is mounted   

securely tightened. 

„  Make sure the direction of flow arrow is in accordance with actual flow. 

„  Make sure the flowmeter is grounded with 100 ohm or less ground resistance. 

„  Make sure the converter housing covers are securely tightened. 

 

 

„  Let the fluid go through the detector pipe. (Note 1) 
„  When the detector is filled with the fluid, stop the fluid and keep it still in the detector pipe. 

   

 

„  Make sure the power supply is as specified. 

 

„  Check the configuration parameter settings. Refer to Chapter 7, “LCD Display and   

Controls,” Chapter 8, “Configuration Parameter Setting,” and Chapter 11, 
“Communications Function.” 

 

„  Wait for 30 minutes to warm up the flowmeter. Then making sure the fluid holds still in the 

detector pipe before starting the zero adjustment. 

„  Refer to 6.2, “Zero Adjustment.” 

 
 

„  After checking the items and conducting the zero adjustment as listed above, let the fluid go 

through the detector pipe. Output (4–20 mA dc) directly proportional to the flow rate can be 
obtained. 

 

System Check 

Placing System On-Stream 

Supplying Electric Power 

Checking Converter Parameters 

Zero Adjustment  

On-line measurement