SCADA systems, field instrumentation, control panel fabrication, and calibration services — built by specialists who understand your process, not just your wiring.
Pressure, temperature, flow, and level measurement — installation, hook-up, and commissioning for all major OEM instruments. We work to your P&IDs and instrument index from day one — no hand-holding required.
System integration, PLC/DCS programming, HMI development, and legacy system upgrades. We work with all major platforms — Honeywell, Emerson, Yokogawa, Rockwell, Siemens — and build systems your operators can actually use.
UL 508A listed panel shop — custom design and build for any application. From simple junction boxes to complex MCC panels with integrated PLC, HMI, and communications. Every panel tested and documented before leaving our shop.
NIST-traceable calibration for all instrument types — on-site or in our calibration lab. Scheduled calibration programs, as-found/as-left reporting, and full calibration database management. ISA 5.1 compliant documentation on every job.
SIL-rated SIS design, installation, and proof testing to IEC 61511. From HAZOP/LOPA support through final validation — we have the functional safety engineering capability to get your SIS from concept to certified.
Full loop checks, functional testing, and site acceptance testing for new installations and modifications. We work to your punch lists and deliver clean, signed-off documentation that your operations team can trust.
Precision Controls Group has served Tulsa's oil and gas sector for 15 years. Our ISA-certified instrument technicians and control systems engineers don't need the process explained — we've already read the P&IDs.
Every engineer on our team understands loop diagrams, cause-and-effect charts, and the difference between a trip and an alarm. That's not common. It's what makes us different.
Full migration of legacy SCADA system to modern Ignition platform — 1,200 I/O points, 45 PLC racks, 12 operator workstations. Project delivered on schedule during a planned 3-week turnaround window with zero production impact.
IEC 61511 compliant SIS design for natural gas processing facility — 24 safety functions, SIL-2 rated, with full HAZOP support, engineering, installation, and proof testing through to final validation certificate.
Ongoing annual calibration program — 3,200 instruments across 6 process units. NIST-traceable, full as-found/as-left records, and integration with client's asset management system. Program running continuously for 6 years.
48 custom control panels — MCC, PLC, remote I/O, and marshalling cabinets. UL 508A fabrication, full FAT at our shop, site installation, loop checking, and SAT. Delivered on budget with zero rework after FAT.
Our instrumentation and controls engineers respond to all technical enquiries within one business day. Tell us your process — we'll take it from there.
Service Area: Oklahoma, Texas Panhandle, Permian Basin, Gulf Coast