Inspect the instrument for damage before each use. Inspect the case. Look for cracks or missing plastic. Page 12 X Field Metrology Wells Safety Information Never touch the probes to a voltage source when the test leads are plugged into the current terminals.
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Product Description Small dry wells for big field applications The new X Series Field Metrology Wells extend high performance to the industrial process environment by maximizing portability, speed, and functionality with little compromise to metrology performance. To properly calibrate an RTD using a dryblock calibrator, you need to understand the influences that effect measurement accuracy. Field Metrology Wells are packed with functionality and are remarkably easy to use.
They are lightweight, small, and quick to reach temperature set points, yet they are stable, uniform, and accurate. These industrial temperature loop calibrators are perfect for performing transmitter loop calibrations, comparison calibrations, or simple checks of thermocouple sensors. This optional built-in two-channel readout reads resistance, voltage, and 4—20 mA current with 24 volt loop power. It also has on-board automation and documentation.
High performance for the industrial environment Field Metrology Wells are designed for the industrial process environment. They weigh less than 8. Field environment conditions are typically unstable, having wide temperature variations. Each Field Metrology Well has a built-in gradient-temperature compensation patent pending that adjusts control characteristics to ensure stable performance in unstable environments. The optional process version models X-X-P provides a built-in two-channel thermometer readout that measures PRTs, RTDs, thermocouples, and mA transmitters which includes the 24 V loop supply to power the transmitter.
Reference PRTs for Field Metrology Wells contain individual calibration constants that reside in a memory chip located inside the sensor housing, so sensors may be used interchangeably. The second channel is user-selectable for 2-, 3-, or 4-wire RTDs, thermocouples, or mA transmitters.
Field Metrology Wells do it all as a single instrument. Traditionally, calibrations of temperature transmitters have been performed on the measurement electronics, while the sensor remained uncalibrated. Thus, it becomes important to calibrate the whole loop—both electronics and sensor.
The process option of Field Metrology Wells makes transmitter loop calibrations easy. The transmitter sensor is placed in the well with the reference PRT and the transmitter electronics are connected to the front panel of the instrument. With 24 V loop power, you are able to power and measure the transmitter current while sourcing and measuring temperature in the Field Metrology Well.
This allows for the measurement of as-found and as-left data in one self-contained calibration tool. All Field Metrology Wells allow for two types of automated thermostatic switch test procedures—auto or manual setup. Auto setup requires the entry of only the nominal switch temperature.
With this entry, it will run a 3-cycle calibration procedure and provide final results for the dead band temperature via the display. If you need to customize the ramp rate or run additional cycles, the manual setup allows you to program and run the procedure exactly how you would like.
Both methods are fast and easy and make testing temperature switches a virtual joy! Metrology performance for high-accuracy measurements Unlike traditional dry-wells, Field Metrology Wells maximize speed and portability without compromising the six key metrology performance criteria laid out by the EA: accuracy, stability, axial vertical uniformity, radial well-to-well uniformity, loading, and hysteresis.
All criteria are important in ensuring accurate measurements in all calibration applications. Each device process and non-process versions comes with an IEC NVLAP-accredited calibration certificate, which is backed by a robust uncertainty analysis that considers temperature gradients, loading effects, and hysteresis.
Each calibration is backed with a test uncertainty ratio. New control technology guarantees excellent performance in extreme environmental conditions. But this is not all! Automation and documentation make each unit a turnkey solution So you now have a precision calibration instrument that has field-ready characteristics, accredited metrology performance, built-in two-channel thermometry, and automation— what else could you ask for?
How about all this and a turnkey solution that will automate and document the results? The process versions of Field Metrology Wells have onboard non-volatile memory for documentation of up to 20 tests. Each test can be given a unique alphanumeric ID and will record block temperature, reference temperature, UUT values, error, date, and time.
Each test can be easily viewed via the front panel or exported using Model Interface-it software, which is included with each shipment. Each unit is equipped with a large, easy-to-read LCD display, function keys, and menu navigation buttons. Each product has a stability indicator that visually and audibly tells you the Field Metrology Wells is stable to the selectable criteria. Each unit offers preprogrammed calibration routines stored in memory for easy recall, and all inputs are easily accessible via the front panel of the instrument.
These are the people around the world who decide what a Kelvin is! Yes, they can connect a piece of metal to a heater and a control sensor. But we invite you to compare all our specs against the few that they publish.
And by the way, we meet our specs!
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