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Emerson
Model 1700
User Manual
Emerson Model 1700 User Manual
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10
Troubleshooting
Topics covered in this chapter:
•
Status LED states
•
Status alarms
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Flow measurement problems
•
Density measurement problems
•
Temperature measurement problems
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Milliamp output problems
•
Frequency output problems
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Use sensor simulation for troubleshooting
•
Check power supply wiring
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Check sensor-to-transmitter wiring
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Check grounding
•
Perform loop tests
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Trim mA outputs
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Check the HART communication loop
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Check HART Address and Loop Current Mode
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Check HART burst mode
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Check Lower Range Value and Upper Range Value
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Check mA Output Fault Action
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Check for radio frequency interference (RFI)
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Check Frequency Output Maximum Pulse Width
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Check Frequency Output Scaling Method
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Check Frequency Output Fault Action
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Check Flow Direction
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Check the cutoffs
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Check for slug flow (two-phase flow)
•
Check the drive gain
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Check the pickoff voltage
•
Check for electrical shorts
•
Check the core processor LED
•
Perform a core processor resistance test
Troubleshooting
Configuration and Use Manual
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