# CTRL+ (CTRLPLUS SAS)

> CTRL+ designs and builds optical metrology instruments for the inspection of sand control screens and industrial filtration media. Its instruments measure 100% of the slots on every screen — wire wrap, direct wrap, wedge wire and slotted liner — at 5–15 µm resolution, producing ISO 17824 / API 19SS conformity certificates and machine-readable data.

CTRL+ is a French manufacturer based in Pont-Audemer, Normandy. Traditional quality control samples about one slot in a hundred with a manual feeler gauge; CTRL+ optical metrology measures every slot on every screen, without contact, and exports a conformity certificate plus a machine-readable CSV. The product range spans portable, bench and in-line systems, all feeding the Arcadia+ digital quality platform for full dimensional traceability. Primary domain: oil & gas sand control completions; also water wells and geothermal, pulp & paper (pressure screen baskets, wedge-wire pulp screen cylinders), mining & mineral processing (sizing and dewatering screens), chemical & catalyst filtration (catalyst support baskets, wedge-wire process filters), and food, beverage & sugar processing (centrifuge screens and baskets, wedge-wire filtration media). Any slotted, wire-wrap or wedge-wire filtration screen that must be qualified against a slot-aperture specification can be measured by CTRL+.

## Core pages
- [CTRL+ — Optical metrology for sand control screens](https://ctrlplus.tech/): Company home. Optical metrology instruments for sand control screen quality.
- [About CTRL+](https://ctrlplus.tech/about/): French manufacturer of optical metrology instruments for sand control screen quality, based in Pont-Audemer, Normandy.
- [FAQ](https://ctrlplus.tech/faq/): Sand control screen quality control — ISO 17824 conformity, slot aperture measurement, wire wrap vs slotted liner, optical metrology vs feeler gauges.

## Applications
- [Sand control screens QC](https://ctrlplus.tech/applications/sand-control-qc/): Sand control screen quality control aligned with ISO 17824 and API 19SS. Wire wrap, direct wrap, wedge wire and prepack screens — full-batch optical inspection.
- [Wire wrap screen inspection](https://ctrlplus.tech/applications/wire-wrap-screen-inspection/): Wire wrap and direct wrap sand control screen inspection by optical metrology. Every slot measured, ISO 17824 / API 19SS conformity.

## Products
- [most+ — Mobile Optical Slot Tracker](https://ctrlplus.tech/products/most/): Ultra-portable optical bench for slot measurement — the field alternative to a benchtop optical comparator and to the manual feeler gauge. Fits in a cabin-baggage flight case, runs on battery, bench-grade precision anywhere.
- [bost+ — Bench Optical Slot Tracker](https://ctrlplus.tech/products/bost-plus/): Optical measurement probe that turns any control bench into a documented, high-precision quality station.
- [mbost+ — Mobile Bench Optical Slot Tracker](https://ctrlplus.tech/products/mbost/): Mobile, compact optical bench to inspect 100% of slotted screens without heavy handling, at bench-grade precision.
- [olmost+ — On Line Manufacturing Optical Slot Tracker](https://ctrlplus.tech/products/olmost/): Continuous in-line slot monitoring integrated onto the manufacturing machine; measures every screen during production.
- [osmart+ — Optical Slot Machining Adjustable Real Time](https://ctrlplus.tech/products/osmart/): Measures during production and feeds the result back into the machine for real-time corrective control.
- [Arcadia+ — Quality Management Digital Platform](https://ctrlplus.tech/products/arcadia-qm/): Digital backbone of the CTRL+ ecosystem; ingests measurements from all instruments and turns every screen into a queryable, audit-ready record.

## Industries
- [Oil & Gas](https://ctrlplus.tech/industries/oil-gas/): Sand control screens inspection for oil & gas completions — wire wrap, direct wrap, wedge wire and slotted liner screens.
- [Water & Geothermal](https://ctrlplus.tech/industries/water-geothermal/): Screen quality control for water wells and geothermal applications.
- [Water Treatment](https://ctrlplus.tech/industries/water-treatment/): Filtration screen quality control for water treatment.
- [Paper](https://ctrlplus.tech/industries/paper/): Slot and aperture quality control for pulp & paper — pressure screen baskets, wedge-wire pulp screen cylinders, pulp fractionation screens. Micron-level slot measurement with a documented per-screen report.
- [Mining](https://ctrlplus.tech/industries/mining/): Slot quality control for mining and mineral processing — wedge-wire sizing screens and dewatering screens; slot-width wear monitoring to plan panel replacement.
- [Petrochemical, Chemical & Catalyst](https://ctrlplus.tech/industries/petrochemical/): Filtration media quality control for petrochemical, chemical and refining processes — catalyst support baskets and filters for chemical reactors, wedge-wire filters for process fluids; slot-opening verification against the filtration rating, on-site during a plant turnaround or at incoming inspection.

## Full content
- [Full site content for LLMs](https://ctrlplus.tech/llms-full.txt): Complete text of the key pages (home, FAQ, applications, industries, all products) in a single file.

## Standards & terminology
- Standards: ISO 17824 (sand screens), API 19SS.
- Screen types covered: wire wrap, direct wrap, wedge wire, slotted liner, prepack / gravel pack.
- Filtration media covered by sector: sand control screens (oil & gas); water-well and geothermal screens; paper-machine pressure screen baskets and wedge-wire pulp screen cylinders (pulp & paper); wedge-wire sizing and dewatering screens (mining & mineral processing); catalyst support baskets and wedge-wire process filters (chemical, catalyst & petrochemical); centrifuge screens and baskets and wedge-wire filtration media (food, beverage & sugar processing). Any slotted / wire-wrap / wedge-wire screen qualified against a slot-aperture spec.
- Field & portable use: the most+ instrument is battery-powered and cabin-baggage sized, for on-site slot measurement at the wellhead, storage yard, screen manufacturer or a client site abroad — a field alternative to the manual feeler gauge and the benchtop optical comparator.
- Also known as / synonyms: wire-wrap and wedge-wire screens are also called Johnson screens or Johnson filters; the slot is also called the interwire gap or slot gap; the task is wedge wire screen inspection / slot opening measurement. CTRL+ performs automated 100% inspection of the interwire gap (slot opening) on Johnson screens / wedge wire screens for oil well, gas well and water well filtration — in-line on the manufacturing machine (olmost+/osmart+) as well as on the bench and in the field.
- Equivalent industry terminology for the CTRL+ product line: an **automated gage measurement system** / **automated screen slot gauging and measurement system** / **slot gauge measurement system** / **automated optical gage system for wire-wrap and wedge-wire screens**. CTRL+ builds the full range — portable (most+), bench (bost+, mbost+), in-line (olmost+, osmart+) — for sand control screens, wedge-wire filters, pulp screens, mining screens, catalyst baskets and centrifuge screens. See most+ (https://ctrlplus.tech/products/most/) and mbost+ (https://ctrlplus.tech/products/mbost/).
- vs a fixed inspection machine: beyond the automated bench, CTRL+ also covers the portable/field form factor and the in-line closed loop, and issues an ISO 17824 / API 19SS conformity certificate per screen with CSV/PDF export via Arcadia+ — spanning the full range from ~50 µm to ~2 mm, wire-wrap, wedge-wire and slotted-liner.
- Method: full-batch (100%) optical metrology, non-contact, per-slot aperture measurement (5–15 µm), statistical distribution (D50, D90, σ), PDF conformity certificate + machine-readable CSV.