Fluid Components International GF03 - Manual (Page 45)

Doc. No. 06EN003352 Rev. B 4 1 Model GF03 Flow Meter
FLUID COMPONENTS INTERNATIONAL LLC http://www.fluidcomponents.com
5. Troubleshooting
Warning: Only qualified personnel should attempt to test this instrument. The
operator assumes all responsibilities for safe practices while
troubleshooting.
Caution: The flow transmitter contains electrostatic discharge (ESD) sensitive
devices. Use standard ESD precautions when handling the flow
transmitter. See Chapter 2, Installation, for ESD details.
In new or re-calibrated instruments, operating problems are most often caused by an improper
installation. Review the information on instrument installation in Chapter 2 to verify correct
mechanical and electrical installation.
Troubleshooting is more effective if the operation of the equipment is understood before
trying to solve the equipment problems. Be familiar with the way the instrument operates
(Chapter 3) before troubleshooting an instrument that does not function properly.
Replacement parts must be of the same part type and number. Therefore, contact the FCI
Customer Service Department for the correct replacement parts.
Damage to the equipment due to negligence or lack of technician skill is not covered by the
warranty, or is damage to flow transmitter caused by part replacement in the field. When parts
are replaced, the verification and calibration procedures should be performed by a qualified
technician to ensure the accuracy and calibration of the instrument.
Digital Multi-Meter (DMM) (at least 4 1/2 digits resolution recommended) capable of
measuring ohms, milliamperes, and volts AC and DC.
Precision decade resistance boxes (two needed, however they are optional).
At this point simply observe the system setup to verify operation. Use Table 8 as a quick check
of problems and solutions. More in-depth discussions follow this table.
Introduction
Troubleshooting
Equipment
Quick Check
Troubleshooting
Problem Solution
No Display
1) Check the fuses.
2) Verify that S1 is switched to the correct input voltage
3) Verify correct power is applied.
4) Verify the ribbon cable between the upper and lower
circuit boards is solidly connected and the red stripe is at
pin 1.
No Display or Dim Display
Adjust potentiometer R1 on the top circuit card. If there is no
change in the display return the potentiometer to the original
setting.
Display is Locked Up
Press HOME and then 1 to return to normal operation. Reset
the flowmeter by cycling the power.
Readings Seem Incorrect
Verify the serial number of the flow element and the flow
transmitter are the same number.
Verify the flat on the flow element is parallel to the pipe and
the flow arrow is pointed in the direction of the flow stream.
S2 switches should all be closed for an integral (local)
instrument and all open for a remote instrument.
Verify all jacks and plugs are firmly seated and the wiring to
them is secure.
If the above solutions do not correct the problem, continue to use the rest of this chapter to
troubleshoot.
Table 8 - Quick Check Troubleshooting