Accurate Readings.
Documented Compliance.
No Worry.
Accurate flow measurement is essential for compliance, reporting, and daily operations. Mercer Controls provides scheduled flow meter calibration and instrument verification to ensure your equipment is accurate and meets TCEQ requirements.
Once we handle your calibrations, you don’t have to track schedules or due dates — we manage everything for you.
Calibration Without the Hassle
We perform routine flow meter calibrations on 3-month, 6-month, or annual schedules, depending on your system needs. Our team tracks calibration intervals, notifies you in advance, and shows up ready to complete the work efficiently.
You don’t need to remember when inspections are due — we take care of it.
TCEQ-Ready Documentation
Every calibration includes proper documentation and certification suitable for TCEQ inspections and audits, giving operators confidence that readings are accurate and defensible.
Meters We Calibrate
Any make, any type. If it measures flow, we can calibrate it. The list below is simply what turns up most often in Texas water and wastewater systems — if your meter is not named here, it does not mean we cannot work on it.
Magnetic flow meters
Endress+Hauser Promag · Siemens SITRANS MAG · Rosemount and Emerson 8700 series · ABB WaterMaster and AquaMaster · KROHNE WATERFLUX and OPTIFLUX · Badger Meter ModMAG · McCrometer FPI Mag · Seametrics insertion mags · Toshiba · Yokogawa ADMAG · Sparling
Ultrasonic and clamp-on
Kamstrup flowIQ and MULTICAL · Siemens SITRANS F US and FUP · KROHNE OPTISONIC · Endress+Hauser Prosonic · Flexim · Greyline · Panametrics
Propeller, turbine and insertion
McCrometer propeller meters · Neptune HP Turbine · Onicon insertion turbine and insertion mag · Seametrics · Badger Meter turbine
Positive displacement and compound
Sensus OMNI and SR II · Neptune T-10 and Mach 10 · Badger Recordall · Master Meter · Elster and Honeywell · Total Control Systems (TCS) 3000 series
Open channel
Flumes and weirs with ultrasonic level · Teledyne ISCO · Hach FL900 · Hach Flo-Dar and Marsh McBirney area-velocity · Greyline open channel
Differential pressure
Venturi tubes and orifice plates · McCrometer V-Cone · with Rosemount, Endress+Hauser or Yokogawa transmitters
We also work on the SCADA and remote monitoring side of the same loop — a meter reading correctly at the transmitter is no use if the number arriving on your screen has drifted. Where a meter turns out to be failed rather than out of calibration, see repairs and replacements.
Brand and product names are the property of their respective owners and are listed only to indicate the equipment we service.
More Than Flow Meters
In addition to flow meters, we also calibrate:
- Chlorine analyzers
- Residual and process sensors
- Pressure, level, and related instrumentation
- Float operation
If it requires calibration, we can support it.
Built for Busy Operators
Our calibration services eliminate tracking, reminders, and last-minute stress. We show up when calibrations are due, complete the work, and provide the documentation — so you can focus on running the plant.
To schedule calibrations or set up an ongoing program, contact us today.
📞 (361) 782-7168