sensors & gas systems. sensors degital sensors depth wheel. stroke counter. degital rpm
TRANSCRIPT
SENSORS & GAS SYSTEMS
SENSORSSENSORS
D E G ITA L A N A L O G
S E N S O R S C A TE G O R IE S
Degital Sensors
Depth Wheel.Stroke Counter.Degital RPM.
Analog sensors
HOOK LOAD.Use a pressure
transducer and normally installed on the dead line anchor system
exitation is 24DCVthe out put is 4 - 20
ma
Analog sensors
STAND PIPE PRESSURE.
1 -Use Dynisco Strain Gauge Transducer
4 wires
exitation is 15DCV.
2 -Current Loop:
Very similar to hookload.
Exit. 24v, out put 4-20ma
2 wires.
TorqueTorque
11 . .ElectricElectric
measures the rotary measures the rotary table current in table current in amperesamperes..
22 . .MechanicalMechanical
Very similar to Very similar to hookloadhookload..
Exit. 24v, out put 4-Exit. 24v, out put 4-20ma20ma..
RPMRPM
The unit consists of a small low-power D.C. generator. This generator is driven via a belt and pulley from the rotary table drive shaft.
The unit produces 7 VDC per 1000 Revolution Per Minute (RPM).
Pit VolumePit Volume
11 . .DelavalDelaval::use a non contacting magnetic float activate discrete reed switches in reed switch resistance string inside a stainless steel pole. The position of the float determines the resistance and hence the voltage fed to the computer.
22 . .Ultra sonicUltra sonic::
Flow OutFlow Out
11 . .PadlePadle
use a 10kom, 1 turn use a 10kom, 1 turn potentiometerpotentiometer..
- -1010 DCV exitationDCV exitation
- -11 - - 1010 DCV signalDCV signal..
22 . .EWSEWS::
measure the flow measure the flow through generating through generating induction voltage in a induction voltage in a
magnetic fieldmagnetic field . .
TemperatureTemperature
Either semiconductor Either semiconductor thermistor thermistor transducers or transducers or platinum resistance platinum resistance elements (PRT)elements (PRT)..
8.58.5 volt excitation volt excitation voltage. output voltage. output between 270 and 370 between 270 and 370
microampsmicroamps . .
ConductivityConductivity
The out put signal is The out put signal is between 4 - 20 mabetween 4 - 20 ma..
Gas TrapGas Trap
The mud trap assembly comprises an electric motor, impeller and trap chamber.
110 volt power is supplied to the motor from the unit and the wattage used is monitored to indicate the status of the trap in the mud.
FID Gas SystemFID Gas System