USER GUIDE
17
PCS 4000
SINGLE WELL CONTROLLER
After CLOSE TIME has counted down to zero, controller
goes directly to DELAY TIME (SALES)
Press READ 06 to check the Plunger Travel Time
History. If the display shows a few seconds of plunger
travel time, such as
A 0:00:03
, the controller went
through the opening and closing part of the program
even though the plunger did not arrive.
Test 1: Check the sensor wire connections.
If a wire was spliced in because of the distance
1
between the controller and the sensor, check the
connection where the wire was spliced. The wire may
be corroded and causing a short.
If the sensor wire connections are good, go to Test 2.
2
Test 2: Check controller by disconnecting the sensor.
Disconnect the sensor from the sensor and ground
1
terminals on the inside of the controller’s faceplate.
Press ON. The controller should count down the OPEN
2
TIME.
If the controller goes from OPEN TIME to DELAY
TIME (SALES), the controller’s circuit board is not
working properly. Call your PCS sales and service
representative.
If the controller does not go to DELAY TIME
(SALES), continue with the next step.
Use a wire to short the sensor and ground terminals.
3
The controller is OK if it goes to DELAY TIME (SALES).
Reconnect the sensor to the terminals. Make sure the
4
wires are put back in correctly.
Test 3: Check plunger.
Check whether the plunger is stuck in the lubricator.
1
If the plunger is not stuck in the lubricator, go to Test 4.
2
Test 4: Check the sensor.
Remove the sensor from the wellhead.
1
Press ON.
2
If the controller counts down the OPEN TIME, go to
step 3.
If the controller goes straight into DELAY TIME
(SALES), there is a short. Either the wire going
to the controller is bad, or the sensor must be
replaced. Go to step 5.
3 Hold the sensor in your hand, and move a steel wrench
through the sensor band.
If the controller goes to DELAY TIME (SALES), the
problem may be a wellhead electrical current.
Go to
4 Possible causes of a wellhead electrical problem:
The sensor or sensor wire may be defective, or
The well may need PCS newest style 2-coil
sensor. This sensor is available in 2-wire or 3-wire
connections.
5 Call your PCS sales and service representative.
Short-term fix for the sensor problem: Use the CASING
DROP PRESSURE feature (see page 12).
Plunger has surfaced, but OPEN TIME does not go to DELAY
TIME (SALES)
Make sure sensor is turned on: Press READ 09. The
controller’s display should show SENSOR: ON.
If the display shows SENSOR: ON, go to Test 1.
If the display shows SENSOR: OFF, press SET 09
and then press ON. Go to Test 2, step 2.
Test 1: Check controller by disconnecting the sensor.
Disconnect the sensor from the sensor and ground
1
terminals on the inside of the controller’s faceplate.
Press ON. The controller should count down the OPEN
2
TIME.
If the controller goes from OPEN TIME to DELAY
TIME (SALES), the controller’s circuit board is not
working properly. Call your PCS sales and service
representative.
If the controller does not go to DELAY TIME
(SALES), continue with the next step.
Use a wire to short the sensor and ground terminals.
3
The controller is OK if it goes to DELAY TIME (SALES).
Reconnect the sensor to the terminals. Make sure the
4
wires are put back in correctly.
Test 2: Check sensor.
Press ON.
1
2 Run a steel wrench along the back of the sensor.
If the controller goes to DELAY TIME (SALES), the
sensor is OK.
If the controller does not go to DELAY TIME
(SALES), call your PCS sales and service
representative.
Test 3: Check sensor alignment.
Realign the sensor by 90 degrees.
1
Example: If the sensor is aligned on the north or south
side, realign it on the east or west side.
If realigning the sensor does not solve the problem, call
2
your PCS sales and service representative.
Short-term fix for the sensor problem: Use the CASING
DROP PRESSURE feature (see page 12).
