
Advanced Flow Meters Calibration Services
APS is devoted to delivering the pinnacle of standard calibration for all equipment specifically designed to measure flow. These vital instruments quantify the flow rate of fluids, liquids, or gases as they traverse through a confined transmission system. An array of these ingenious devices leverage the inherent physical properties of liquids and gases to achieve the most accurate and cost-effective measurements. They employ a broad range of measurement methods, including ultrasonic, electromagnetic, Karman vortex, paddlewheel, floating element, thermal, and differential pressure techniques.
At APS, we understand the importance of precise calibration for these diverse instruments to ensure the utmost accuracy and stability of the process. Our commitment to excellence underpins every calibration we perform, fostering trust in the precision and reliability of every measurement.
- Electrical, Multimeters
- Flow - Fluids, Liquids, Gas
- Mechanical and Balance
- Optical
- Physical Dimensional
- Pipette
- Pressure Gauge Calibration
- Temperature / Thermometers

Gas Flow Meter Calibration
APS performs gas flow meter calibration whether the measurement system is based on a single fundamental parameter or a very complicated process. The gas flow meter used for measurement depends on the technology used.
Gas flow meter calibration types:
There are 8 commonly used technologies in gas flow and liquid flow measurement. They are:
- Electromagnetic
- Vortex time
- Paddle wheel
- Thermal dispersion
- Floating element
- Ultrasonic
- Differential pressure
- Peristaltic pump calibration
- Coriolis
Gas flow meters / sensors we regularly calibrate:
APS often calibrates the following:
- BlueSens
- BW Technologies - gas calibration
- Draeger calibration
- Mettler-Toledo scale
- MSA - gas calibration
- Omega thermocouple calibration
- RKI Instruments
- Rosemount transmitter calibration
- Sartorius balance calibration
- Siemens calibrations
- Yokogawa flow meter calibration
CONTACT APS for gas flow meter calibration services.

Liquid Flow Calibration Services
A liquid flow meter is an instrument designed for measuring the flow rate of fluid via a fluid transmission system. APS performs liquid flow rate calibration (flow meter calibration) calibrations whether the measurement system is based on a single fundamental parameter or a very complicated process. The method of measurement depends on the technology used. We perform backflow test gauge calibrations / flow rate calibrations on a regular basis.
Liquid flow meters we regularly calibrate:
- Hoffer flow controls
- Sonotec / Gems Sensors
- TSI Calibration
- Omega thermocouple calibration
- Honeywell calibration
- Micro Motion flow meter calibration
- Rosemount transmitter calibration
- Agilent calibration
CONTACT APS for liquid flow rate calibration services.

Mass Flow Controller Calibration Services
APS performs mass flow meter calibrations / flow rate calibrations to the finest of tolerances in gas measurement. Because the mass flow controller is a specific inline device it is critical that is regularly maintained and calibrated in laboratories or production settings. Mass flow sensor calibration requires both measurement and control functions all the while tight thermal / pressure control is maintained for consistent volumetric metering.
We calibrate these leading mass flow meters:
- Brooks
- Burkert
- Bronkhorst
- Porter
CONTACT APS for mass flow meter calibration services.

Volumetric Flow Meters Calibration
APS performs NIST traceable ISO 17025 volumetric flow sensor calibration in analytical laboratory / industrial process applications. We can quickly accommodate on-site equipment or equipment overnighted to our laboratory for rapid calibration and instrument turnaround. A sampling of instruments we regularly calibrate include: digital force gauge, load cell, balance, vernier caliper, height gauge, torque wrench, torque analyzer, torque tester, torque screwdriver, and manometer. Torque wrench calibration is a common request where we expedite service. Several applications of balance calibration, load cell calibration, torque calibration and flow sensor calibration involve our setting up an initial IOPQ process qualification and validation.
We calibrate these leading volumetric flow meters:
- Copley
- TSI
CONTACT APS for volumetric flow meter calibration services.

In-Line Flow Meters Calibration Services
APS works with NIST traceable ISO 17025 in-line flow meter calibration in analytical laboratory and in industrial process applications. These flow meters work on a variety of physical properties that include acoustic, optical, volumetric, or gravimetric methods.
CONTACT APS for IN-LINE flow meter calibration services.

Acoustic Flow Sensor Calibration - inline or non-invasive
APS performs acoustic flow meter calibration that incorporates the geometric calibration of the tube or pipe the liquid passes through. APS performs acoustic flow sensor calibration on flow meters, bubble sensors, and level sensors using this technology. Inline or non-invasive available!
CONTACT APS for acoustic flow sensor calibration services.

Optical Flow Sensor Calibration - Inline or non-invasive
APS performs NIST traceable ISO 17025 optical flow sensor calibration in analytical laboratory and in industrial process applications. APS calibrates these sensors whether the optical flow meter measures through optical fiber interferometry, optical hot-wire anemometry, or scintillation. Inline or non-invasive available.
Need overnight calibration? CONTACT APS for optical flow meter calibration services.
Flow Meter Calibration FAQs
What are in line flow meters?
In line flow meters are devices used to measure the flow rate of liquids or gases in a tube or pipeline. They are installed directly in the tube or pipeline and provide real-time measurements of the flow rate. In line flow meters (sensors) are commonly used in laboratory settings for measuring the flow rate of liquids in experiments, as well as in industrial production processes for monitoring the flow rate of liquids or gases in manufacturing processes. There are different types of in line flow meters, including electromagnetic, ultrasonic, and thermal flow meters, each with their own advantages and limitations. The choice of in line flow meter depends on the specific application and the properties of the fluid being measured.