NIST-traceable instrument calibration — in our shop or at your plant.
CML Enterprises calibrates, certifies and repairs pressure, temperature and electrical instruments on Beamex MC6 equipment, with every result tracked in Beamex CMX. Headquartered in Antioch, Illinois, serving the Chicago area, Lake County and southeast Wisconsin from our Antioch and Bolingbrook, IL locations.
- In-house & on-site field service
- HART · Profibus · Foundation Fieldbus
- Certificates in paper or electronic format
Calibration at a glance
- Measure
- Pressure, temperature, electrical (mA, V, frequency, switch, RTD)
- Equipment
- High-accuracy, all-in-one Beamex MC6
- Records
- Beamex CMX database, scheduling & interval analysis
- Traceable
- National & international standards (NIST)
- Where
- Ship-in to CML or on-site at your facility
One partner for every instrument on your calibration list
Inspection, as-found testing, repair and full multi-point calibration — documented, certified and scheduled so nothing slips past due.
Pressure calibration
Analog, digital and duplex gauges, pressure and DP transmitters, switches, diaphragm seal and Red Valve assemblies. 3-point, 5-point or custom up & down.
Pressure calibrationTemperature calibration
RTDs, thermocouples, transmitters, thermometers, gauges and switches — in °F or °C, NIST-traceable.
Temperature calibrationTransmitters, loop & HART
Smart transmitter calibration with HART, Profibus and Foundation Fieldbus, plus current, voltage, frequency and RTD measurement.
Transmitter calibrationOn-site field service
On-demand or scheduled calibration at your plant, switch set-point testing, hydrostatic pipe testing, data logging and emergency service.
Field serviceRecords & Beamex CMX
Every instrument in a CMX database: scheduling, alerts, history trends, optimized intervals and audit-ready certificates.
Calibration recordsRepair & seal assemblies
Instrument repair and refurbishment, diaphragm seal and capillary assembly and fill, switch set points and hydraulic burst testing.
Service & repairFrom instrument list to certificate
- Send your listUpload a spreadsheet or tell us what’s installed and where.
- Choose in-house or on-siteShip instruments to CML, or have our technicians come to you.
- Calibrate on Beamex MC6Inspection, as-found tests, any repair, then full multi-point calibration.
- Certificates & CMX recordsNIST-traceable certificates and a history that flags drift before it costs you.
Why plants call CML
- Calibration, repair and supply under one roof. If an instrument can’t be saved, we can source the replacement — and calibrate it before it goes in.
- Proven on critical systems. DP transmitters protecting personnel and equipment at a 24/7 national laboratory.
- Documentation built in. Beamex CMX scheduling, history and certificates in paper or electronic format.
- Women-owned since 1988. Incorporated as a 100% women-owned business — a WBE supplier for diversity programs.
- Local to the Chicago area and the IL–WI line. Antioch, IL HQ plus Bolingbrook, IL (Chicago’s southwest suburbs) and Fennville, MI locations.
Download: CML Calibration Service Line Card (PDF, 325 KB)
Calibration for plants where accuracy is non-negotiable
Food & beverage
Calibration for Nestlé Professional Beverages, plus sanitary valves, instrumentation and fittings for hygienic processes. Customers include Nestlé USA, Tone Products, Imbibe Inc, Chicago Process Fruit Group, Fannie May and W.A. Imports.
Food & beverageLaboratories & research
Valves, instrumentation and extensive calibration service, including critical-system DP and pressure transmitter calibration at Argonne National Laboratory — featured in Beamex’s Calibration World magazine.
Labs & researchWater & wastewater
Field calibration for the Metropolitan Water Reclamation District and wastewater treatment plants throughout Illinois, Indiana and Iowa — plus valves and instrumentation for WWTP service.
Water & wastewaterArgonne National Laboratory
At Argonne, we supply various valves and instrumentation and provide extensive calibration service — including critical-system DP and pressure transmitter calibration in a facility that runs 24/7, published as a customer success story in Beamex’s Calibration World.
In our customers’ words
“CML Enterprises performed calibration services of differential pressure transmitters for critical systems used for protection of both personnel and equipment. They did the work during tight time frame of the facility that operates 24/7 with impressive efficiency and knowledge. We are very satisfied with CML performance and plan to continue using their services.”
“Over all, I just want to say that Bob and Bobby are excellent people. They really know how to represent CML Enterprises. I highly recommend their calibration services, they are flexible and very reliable. They work hard and they will do anything they can, to get those instruments up and running. Great job I will look forward to work with you next year. Thank you.”
“I have dealt with CML Enterprises for many years, and they are my most trusted suppliers of pressure and temperature calibration and certification. We have never had a problem with their work. I have known the Lefley family for over 50 years.”
Calibration across the Chicago area, northern Illinois & SE Wisconsin
CML is headquartered in Antioch, Illinois, with locations in Bolingbrook, Illinois and Fennville, Michigan. A large share of our customers are in the Chicago area: from Antioch we serve Lake County and the north and northwest suburbs, plus the Kenosha / Pleasant Prairie, Wisconsin corridor; Bolingbrook keeps us close to Chicago’s west and southwest suburbs; and Fennville connects us with West Michigan.
Antioch, IL 60002
Lake County, Illinois — north of Chicago, on the Illinois–Wisconsin state line
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Bolingbrook, IL 60440
Chicago area — southwest suburbs (Will / DuPage counties)
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Fennville, MI 49408
West Michigan
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Process-control supply & repair
Since 1988, CML has also been a process-control distributor: valves, instrumentation, filters, strainers and traps, UniTherm insulation systems, and sanitary products — backed by consignment inventory, purchasing agreements, vendor stocking contracts and single-source supply programs.
Valves
Ball, control, check, needle, bleed, butterfly, gauge root and actuated valves; pressure regulators.
Instrumentation
Pressure & temperature indicators, switches, transmitters, seals, level and flow.
Filters & traps
Bag filters, cartridges, Y/basket/duplex strainers and steam traps.
Insulation
UniTherm removable insulation, freeze protection and fire protection.
Ready to get your instruments certified?
Request a calibration quote online or call Bob directly.