Micro Motion Fisher-Rosemount RFT9709, Instruction Manual

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RFT9709 Transmitter Instruction Manual
Troubleshooting
continued
4.2 Transmitter diagnostic
tools In some situations, troubleshooting requires use of the transmitter's
diagnostic tools, which include the diagnostic LED and fault output
levels.
Diagnostic LED • Transmitter operating conditions indicated by the diagnostic LED are
listed in Table 4-1.
• The diagnostic LED is illustrated in Figure 4-1.
Fault outputs The RFT9709 has downscale and upscale fault levels. To set fault levels,
see
Switch Settings , Appendix C.
Downscale
Under fault conditions:
• mA outputs go to 0-2 mA
• frequency/pulse output goes to 0 Hz
Upscale
Under fault conditions:
• mA outputs go to 22-24 mA
• frequency/pulse output goes to 15-19 kHz
Table 4-1.
Conditions indicated by
diagnostic LED
Figure 4-1.
Diagnostic LED
Diagnostic LED does this: Condition
Blinks ON once per second
(25% ON, 75% OFF) Normal operation
Remains ON continuously Startup and initialization, zero in progress
Blinks ON three times, then OFF
for 1 second Communication configuration mode
(configuration switch 8 in ON position)
Blinks OFF once per second
(75% ON, 25% OFF) Slug flow (density below or above user-
defined limits)
Blinks ON 4 times per second Fault condition
Diagnostic LED
09shoot.fm Page 32 Tuesday, March 2, 1999 9:26 AM