Emerson Process Management rosemount 3300 series manual $*1267,& 066$*6

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00809-0100-4811, Rev AA October 2002

Rosemount 3300 Series

',$*1267,&￿ 0(66$*(6

7URXEOHVKRRWLQJ		If there is a malfunction despite the absence of diagnostic messages, see
		Table 6-1for information on possible causes.
Table 6-1. Troubleshooting
chart
	No HART communication.		• COM Port configuration does not match		• Check that correct COM Port is
				the connected COM Port.		selected in the HART server (see
			•	Cables may be disconnected.		“Specifying the COM Port” on
			• Wrong HART adderss is used.			page 4-14.
			•	Hardwafe failure.	•	Check wiring diagram.
					•	Verify that the 250 Ohm resistor is in
						the loop.
					•	Check cables.
					•	Make sure that correct HART short
						address is used. Try address=0.
					•	Check Analog Output current value to
						verify that transmitter hardware works.
	Analog Out is set in Alarm.				Use the command “Read Gauge Status”
					in order to check active errors.
	Both P2 and P3 are detected but Interface		Measurement Mode is set to “Level Only”.		Set Measurement Mode to “Level and
	Level is reported as Not A Number (NAN)				Interface” (see “Basic Configuration” on
	in the waveform plot.				page 4-9).
	Both Level and Interface Level are		Probe is not connected.		Use the command “Read Gauge Status”
	reported as NAN.				and check if error “Probe Failure” is
					active. If this is the case, check the probe
					connection.
	Both P2 and P3 are detected but the		•	P3 is identified as a double bounce.	Adjust thresholds T2 and T3, see
	interface level is equal to the product		•	P2 and P3 are very close.	“Amplitude Threshold Settings” on
	Level.				page 6-13for more information.
	P2 is detected but Level is incorrectly				Use the command “Read Gauge Status”
	reported as Full or Empty.				and check if the warning “Probe
					Immersed” is active. If this is the case
					check that:
					•	the transmitter is configured with
						correct probe type,
					•	the reference pulse (P1) is below
						amplitude threshold T4. If not, adjust
						T4 to an appropriate value.
	The reference pulse is not detected.		•	The tank is full.	•	Check the product level.
			•	The transmitter is configured with	•	Check that correct probe type is
				wrong probe type.		configured.
			•	Amplitude Threshold T1 is not correct.	•	Check Amplitude Threshold T1.
	Level accuracy seems off.		•	Configuration error.	•	Check the Reference Gauge Height
						parameter.
					•	Check status information and
						diagnostic information.
	Integral display does not work.				•	Check the display configuration.
					•	Check loop power.
					•	Check Display connection.

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