|
Frequently Asked Questions: Troubleshooting
How to troubleshoot a SeaMetrics flow system: IP80 Series, TX80 Series, IP100/200, TX100/200, WT, TB and S-Series Flow Meters
1. Make sure there is flow, and that the pipe is full. There should be no entrained air.
2. Disconnect the sensor from the electronics to which it is connected. If it is a SeaMetrics Flow Control, disconnect the red, white and black wires at the controller.
3. Set the k-factor to "1" on Flow Computers, and the accumulator to "1" on Pulse Timers.
4. Momentarily bridge between <signal> and <-V> (usually the white and black wires) with a paperclip or a short piece of wire. Each time you bridge these terminals, the totalizer will increment (count up) one count. If you do not get a count, there is something wrong with the control.
5. If the control registers counts, reconnect the three wires from the sensor, being careful not to reverse the red <+V> and white <signal> wires. Remove the probe or rotor assembly from the line, following your plant's safety precautions and check to see that the rotor looks intact, unworn, and spins very very freely. If the rotor is missing or the rotor shaft is broken or worn, install a new rotor repair kit.
6. The rotor has very small completely encapsulated magnets. The sensor produces a single pulse every time a magnet reaches the top center of the rotor housing. Slowly turn the rotor and observe the display on the electronic control. As each magnet nears and passes the sensor, one pulse will be registered on the control. If no pulse is seen, the sensor requires replacement. In IP80, TX80, WT, TB, and S-Series Flow Meters, this can be accomplished in the field with no special tools. Refer to the instruction manual that came with your unit for details. In IP100/200 and TX100/200 series Flow Meters, the sensor must be replaced at the factory. Please contact your distributor for an RMA number prior to returning any unit for repair.
|
