Sensors and Switches in Oil Rig Applications A Crown Block B Power Generation Unit D Accumulator Unit Measure weight on drill line via cable tension Load cells: 41, RM Measure oil, water, and hydraulic fluid pressure Pressure sensors: FP2000, MLH, IP, PX2, SPT Emergency shutdown Switches for ESD: WOI Measure inlet/outlet pressure with high accuracy Pressure sensors: FP2000, STJE Control/monitor operations activity MICRO SWITCH™ basic switches: BZ, V7, V15W, SX MICRO SWITCH™ toggle switches: TL, NT, TS, TW, ET, AT Key, rotary, and e-stop switches: custom Limitless™ operator interface: WOI Measure hydraulic pressure, weight, force/ strain or movement, monitor raising or lowerF Rig Hydraulic ing deck for directional drilling Pressure sensors: FP2000, IP Lift Load cells: 41 H Drawworks Measure torque, load/weight/position while guiding pipe into position Load cells: 41, RM MICRO SWITCH™ switches: BX, LSX I Iron Roughneck M Water/ Storage Tank Measure torque while attaching pipe using hydraulic pressure or load measurements Load cells: 41 Pressure sensors: FP2000, IP Measure tank liquid levels Switches: HDLS, WLS non-contact Pressure sensors: MLH, LL-V, SPT, PX2 Monitor torque/twisting movement to ensure right amount of force is applied Torque sensors: custom Measure weight on drill bit Load cells: 41 Measure hydraulic pressure and feed information into control system Pressure sensors: FP2000, 811FM On/off control and operator alerts to enhance safety Limitless™ operator interface: WOI Measure weight on the drill line via cable tension Load cells: 41 Measure tension on deadline/drilling line cable Load cells: 41, RM Measure valve position/choke valves MICRO SWITCH™ hazardous area switch: CX Measure drilling mud pressure to monitor and control mud flow Wing Union sensors: 435, 437, 424, 425, 427 Position sensing or on/off applications Switches: HDLS, WLS, WOI Position sensing or on/off applications Limit switches: HDLS, WLS, WOI Measure pressure and flow of mud media Wing Union sensors: 435, 437, 424, 425, 427 On/off or emergency start/stop applications Limitless™ operator interface: WOI Mud pump stroke count, position sensing, or on/off applications MICRO SWITCH™ limits: EX, BX, HDLS Z Winch AB BlowOut Preventor AD Drill Bit Measure direct and indirect loads Canister load cells: MPB, 3130, 3156, 3127 Monitor RAM position via hydraulic volumetric or pressure behind the piston (“pinch offs”) Pressure sensors: A-105, TJE Measure pressure or differential pressure at high temperature and pressure ranges Pressure sensors: S Measure drilling fluid pressure Pressure sensors: FP2000 Wing Union sensors: 435, 437, 424, 425, 427 Measure valve position Limit switches: CX, WLS Measure tank liquid levels Pressure sensors: FP2000, IP, SPT Monitor tank valve position Limit switches: B

Sensors and Switches in Oil Rig Applications Load Cells Model 41 • Rugged, low profile pancake style • All-welded stainless steel with double diaphragm design • Load ranges of 5 lb to 500,000 lb; Accuracy: ±0.1 % • Low sensitivity to extraneous loads • Intrinsically safe option available Pressure Sensors FP2000 Series • All-welded, stainless steel construction • Gage, absolute, barometric, vacuum, differential pressure • Range: 0.5 psi to 10,000 psi • Accuracy range of 0.1 % or 0.25 % • Intrinsically safe options available Model RM • Rod end in-line tension load cell • Rugged design with stainless...