Measuring Temperature in the Food and Beverage Industry to Maintain Quality

It is crucial that food and beverages are produced and stored at specific temperatures to maintain their quality. To avoid blockage in the pipes even pressure flow through the process pipelines is also important. Products must be contained under certain specified conditions during transportation to distribution points and consumers.

Measuring Temperature in the Food and Beverage Industry to Maintain Quality

Therefore, in order to deliver high quality product to the customers, accurate control of the whole process is essential within the food industry. Ametek Calibration specialize in manufacturing calibration and test equipment for utilization throughout the food and beverage industry. They produce a wide variety of equipment, from digital test gauges and data recorders, to high accuracy dry-block temperature calibrators.

Tank Level (Storage)

Food and beverage producers store their inventory in holding tanks, and use an accurate pressure and temperature measurement of each storage vessel to keep an up to date record of their inventory on-hand. The nVision provides a quick and easy way to record accurate pressure measurements and the RTC measures and calibrates temperature.

Direct Pressure Measurement

Direct measurement of pressure is required in various places throughout food and beverage facilities. This could involve permanently mounting an instrument or completed periodic checks. Intrinsically safe instrumentation to provide the accuracy and flexibility to confidently measure pressure is available from Ametek Calibration.

Barometric Pressure Measurement

For applications such as calibrating absolute pressure gauges the reference gauge must read directly in barometric pressure. The nVision and the HPC40 Series, with the optional barometric reference will indicate pressure in the absolute scale and it is possible to toggle between gauge and absolute pressure on the same device.

General Temperature Calibration

Throughout the industry, temperature measurement is an crucial part of creating high quality food. High temperatures result in wasted energy and higher costs and low temperatures could compromise hygiene. The RTC series with reference temperature probes gives accuracy of up to ± 0.04 °C stability up to 0.01 °C. Features like stability checkmarks and countdown timers help the operator know when to take readings from the sensor-under-test.

Calibration of Short Sensors

When using small sensors (between 6 and 8 cm), calibrating them can be challenging because they aren’t long enough to reach the calibration zone of most dry block calibrators. This is not a concern with the RTC Reference Temperature Calibrators.

The special dual-zone technology extends the calibration zone of the dry block calibrator, to a point at which the short sensors can be tested accurately. Furthermore, a similarly short reference sensor can be utilized to increase accuracy even more.

Calibration of Sanitary Sensors

If quality is key when producing dairy products, keeping high accuracy in the temperature sensors is crucial. The RTC-156 possesses consistent temperature measurement, so helps to avoid extra resources needed to adjust temperature of the process.

Transmitter/Flow Computer Calibration and Validation

In addition to temperature, static and differential pressures are typically measured to calculate flow by using transmitters and flow computers. Validation and calibration are required to assure their accuracy. The nVision permits a user to complete pressure calibration and validation of a differential transmitter, Ametek Calibration temperature calibrators are used to calibrate the temperature component, and their ASC-400 and CSC201 models simulate the signal to the flow computer.

Datalogging/Data Recording in Hot, Cold, or Wet Areas

Utilize the nVision to record temperature, pressure, voltage, and current at up to 10 readings per second. The battery-optimizing, Ultra Low Power (ULP) mode, permits an entire year of continuous recordings on one set of batteries.

Ultra Heat Treated (UHT) Milk

Billions of tons of milk is worked into different products each year, including butter, yogurt, and cheese, etc. The process for each of these products is different but involves numerous steps of heating and cooling the milk. Keeping a consistent temperature throughout this process is crucial to creating high quality product. The RTC with a small reference sensor provides the accurate, quick, reliable temperature measurement that is needed.

Specialty Baking

In the majority of high end bakeries, the consistent regulation of temperature in their huge ovens is paramount to creating top quality aesthetics and taste of their baking goods. These ovens have multiple sensors in different locations to achieve this. Speed and ease of use are the most important factors when calibrating these sensors. The small size and fast speed of the ETC temperature calibrators make it the perfect instrument to keep the ovens working at optimum levels.

Filter Testing

The nVision can measure and record differential pressure at high static pressure directly across a filter. A user can save money by only replacing filters when needed by estimating a filter's relative age and wear in this manner.

Hydrostatic Testing/Leak Testing

Pipe and storage systems are tested for their strength and leaks by pressurizing a liquid, and monitoring whether there is a loss of pressure. The XP2i and nVision both record the pressure test and produce a digital record. By utilizing the nVision, pressure and temperature can be recorded simultaneously.

Relief Valve and Rupture Disc Testing

Pressure safety valves and rupture discs protect piping systems and pressure vessels from too much internal pressure. Periodic testing and adjustment of this equipment is important to maintain overall safety. Ametek Calibration equipment catches the maximum pressure at high speeds (up to 10 readings per second) to complete and document the tests.

General Calibration and Maintenance

Electronic sensors, valves, pressure and temperature transmitters, pressure gauges, transducers, regulators, and pressure and temperature switches must be checked and calibrated periodically. The nVision provides a number of modules and special test modes for fast, simple verification.

Pump Testing

The nVision monitors inlet and outlet pressures and records from two pressure sensors, up to 15 000 psi, as quickly as 10 times per second, to characterize the pump.

Maintenance of Calibration Standards and Test Equipment

Test equipment and portable calibrators require periodic checks and calibration. Having local standards on site for calibration of these instruments provides savings in cost and downtime of instruments: calibrate the field instruments locally and then only send the standard in for regular calibration. The HPC40 Series and nVision are light-weight, small, instruments that have the accuracy needed to calibrate pressure in the field or in a lab.

The RTC and PTC series are excellent standards for the verification and calibration of handheld thermometers. The DTI Series with an STS may be used as high accuracy temperature references. The AMC-910 offers capabilities for local calibration of electrical signals and with the APM CPF and an STS probe may be used for pressure and temperature calibration.

There is no better pressure standard than a deadweight tester for calibrating pressure instruments and the deadweight testers from Ametek Calibration are designed to be highly accurate but durable.

This information has been sourced, reviewed and adapted from materials provided by AMETEK Sensors, Test & Calibration.

For more information on this source, please visit AMETEK Sensors, Test & Calibration.

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