# US 12,007,287 B2 · Temperature calibrator with advanced functionality

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- Number: US 12,007,287 B2
- Document ID: US12007287B2
- Status: Granted
- Kind: B2
- Application number: 17/080,500
- Filed: 2020-10-26
- Published: 2021-04-29
- Granted: 2024-06-11
- Earliest claimed: 2019-10-28
- Assignees: Beamex Oy AB
- Applicants: Beamex Oy Ab
- Inventors: Heikki Laurila
- Web page: https://patentgrep.com/patent/US12007287B2

## CPC

- G01K 15/002: {Calibrated temperature sources, temperature standards therefor (arrangements with respect to the cold junction of thermo-electric elements G01K7/12)}
- G01K 15/005: {Calibration}
- G01L 27/005: {Apparatus for calibrating pressure sensors}
- G01R 35/007: {Standards or reference devices, e.g. voltage or resistance standards, "golden references"}
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)
- G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

The present invention combines the functionalities of a multifunctional process calibrator with a heating and/or cooling unit (also called as a dry block). The heating and/or cooling unit and the process calibrator are integrated in a single housing forming the arrangement. The arrangement allows using several digital communication protocols i.e. fieldbus protocols. Temperature sensor simulation is possible as well. Pressure measurement and/or calibration is also enabled. The arrangement is supplied with internal rechargeable battery, which enables all other functionalities without mains power, except the use of the heating and/or cooling unit, where the mains power is required.

## Claims

### Claim 1

An arrangement for calibrating a temperature sensor applying a dry block, wherein the arrangement comprises:
a processor;
at least one pair of connecting terminals;
a heating and cooling unit, comprising at least one heating and cooling element for heating and/or cooling a desired part of the arrangement;
an insert providing a place for a temperature sensor to be calibrated,
wherein the arrangement further comprises:
a multifunctional process calibrator performing operations, measurements and generations concerning at least two different quantities taken from a group of voltage, current, pressure, temperature, frequency, and resistance; wherein
the heating and cooling unit and the multifunctional process calibrator are integrated in a single housing forming the arrangement, wherein the arrangement comprises:
an internal, rechargeable battery, which provides power to the arrangement except for the use of the at least one heating and cooling element; and
an accelerometer for detecting an inclination angle of the arrangement, and if the inclination angle exceeds a threshold angle, relaying a warning to a user of the arrangement.

### Claim 2 (depends on 1)

The arrangement according to claim 1, wherein the at least one heating and cooling element is a Peltier element or a resistive heating element, depending on a desired temperature area of the arrangement.

### Claim 3 (depends on 1)

The arrangement according to claim 1, wherein the arrangement comprises a user interface, comprising LED indicators, a screen, and a keyboard, where the LED indicators show warning signals to a user, and a screen shows connection instructions relating to the at least one pair of connecting terminals to the user relating to a desired calibration.

### Claim 4 (depends on 1)

The arrangement according to claim 1, wherein the arrangement comprises at least two different fieldbus protocol modules enabling communication in at least two different fieldbus protocols.

### Claim 5 (depends on 4)

The arrangement according to claim 4, wherein the fieldbus protocols are selected among a group of HART, FOUNDATION Fieldbus and Profibus fieldbus protocols.

### Claim 6 (depends on 1)

The arrangement according to claim 1, wherein the arrangement comprises:
a temperature sensor signal simulation which creates a temperature sensor signal based on a temperature input value, and which feeds the created temperature sensor signal to a desired location in a measurement circuit in the field.

### Claim 7 (depends on 1)

The arrangement according to claim 1, wherein the arrangement comprises a pressure measurement module which measures or calibrates pressure of a pressure sensor.

### Claim 8 (depends on 1)

The arrangement according to claim 1, wherein the multifunctional process calibrator comprises:
a plurality of resistance (R) or resistance temperature detector (RTD) measurement channels, and
a plurality of thermocouple measurement channels.

### Claim 9 (depends on 1)

The arrangement according to claim 1, wherein the arrangement executes performed settings, method steps, measurements, calibrations, and data transmission/receptions by applying a calibration software, which is common in the multifunctional process calibrator and in an external computer used in a control room, allowing data flow between the arrangement and the external computer, and measurement/calibration data storage to a desired location.

### Claim 10 (depends on 3)

The arrangement according to claim 3, wherein the arrangement informs excessive heat within the arrangement with a warning indicator via the LED or via the screen.

### Claim 11 (depends on 1)

The arrangement according to claim 1, wherein the arrangement comprises a connection to an external temperature controller or to an external pressure controller.

### Claim 12 (depends on 1)

The arrangement according to claim 1, wherein the arrangement comprises reference sensors, which comprise a memory chip to store sensor coefficients, and wherein
the arrangement automatically reads and uses the sensor coefficients after the insertion of the reference sensors into the arrangement.

### Claim 13

A method for calibrating a temperature sensor applying a dry block, wherein the method comprises the steps of:
controlling an arrangement by a processor;
allowing connections to instruments or sensors to be measured by at least one pair of connecting terminals;
performing heating and/or cooling of a desired part of the arrangement by a heating and cooling unit comprising at least one heating and cooling element, when desired;
placing a temperature sensor in an insert for calibration,
wherein the method further comprises the steps of:
performing at least one operation and/or measurement and/or generation by a multifunctional process calibrator, where the multifunctional process calibrator is performing operations, measurements and generations concerning at least two different quantities taken from a group of voltage, current, pressure, temperature, frequency, and resistance; wherein
integrating the heating and cooling unit and the multifunctional process calibrator in a single housing forming the arrangement, wherein the arrangement comprises:
an internal, rechargeable battery, which provides power to the arrangement except for the use of the at least one heating and cooling element; and
an accelerometer for detecting an inclination angle of the arrangement, and if the inclination angle exceeds a threshold angle, relaying a warning to a user of the arrangement.

### Claim 14

A non-transient computer memory with a computer program for calibrating a temperature sensor applying a dry block, the computer program comprising program code which is executable in a processor, wherein the computer program executes the steps of:
controlling an arrangement by the processor; where the arrangement comprises at least one pair of connecting terminals for connections to instruments or sensors to be measured, and the arrangement allows a temperature sensor to be placed in an insert for calibration;
performing heating and/or cooling of a desired part of the arrangement by a heating and cooling unit comprising at least one heating and cooling element, when desired;
wherein the computer program further executes the step of:
performing at least one operation and/or measurement and/or generation by a multifunctional process calibrator, where the multifunctional process calibrator is performing operations, measurements and generations concerning at least two different quantities taken from a group of voltage, current, pressure, temperature, frequency, and resistance; wherein
the heating and cooling unit and the multifunctional process calibrator are integrated in a single housing forming the arrangement, wherein the arrangement comprises:
an internal, rechargeable battery, which provides power to the arrangement except for the use of the at least one heating and/or cooling element; and
an accelerometer for detecting an inclination angle of the arrangement, and if the inclination angle exceeds a threshold angle, relaying a warning to a user of the arrangement.

### Claim 15

An arrangement for calibrating a temperature sensor applying a dry block, wherein the arrangement comprises:
a processor;
at least one pair of connecting terminals;
a heating and cooling unit, comprising at least one heating and cooling element for heating and/or cooling a desired part of the arrangement;
an insert providing a place for a temperature sensor to be calibrated,
wherein the arrangement further comprises:
a multifunctional process calibrator performing operations, measurements and generations concerning at least two different quantities taken from a group of voltage, current, pressure, temperature, frequency, and resistance; wherein
the heating and cooling unit and the multifunctional process calibrator are integrated in a single housing forming the arrangement;
wherein the arrangement comprises a user interface, comprising LED indicators, a screen, and a keyboard, where the LED indicators show warning signals to a user, and a screen shows connection instructions relating to the at least one pair of connecting terminals to the user relating to a desired calibration; wherein the arrangement informs excessive heat within the arrangement with a warning indicator via the LED or via the screen; wherein the arrangement further comprises:
an accelerometer, which senses whether an inclination angle of the arrangement exceeds a threshold angle or whether the arrangement has tipped over to its side, and
a fan, wherein the arrangement switches off the heating and cooling elements and turns on the fan.

### Claim 16

A method for calibrating a temperature sensor applying a dry block, wherein the method comprises the steps of:
controlling an arrangement by a processor;
allowing connections to instruments or sensors to be measured by at least one pair of connecting terminals;
performing heating and/or cooling of a desired part of the arrangement by a heating and cooling unit comprising at least one heating and cooling element, when desired;
placing a temperature sensor in an insert for calibration,
wherein the method further comprises the steps of:
performing at least one operation and/or measurement and/or generation by a multifunctional process calibrator, where the multifunctional process calibrator is performing operations, measurements and generations concerning at least two different quantities taken from a group of voltage, current, pressure, temperature, frequency, and resistance; wherein
integrating the heating and cooling unit and the multifunctional process calibrator in a single housing forming the arrangement;
wherein the arrangement comprises a user interface, comprising LED indicators, a screen, and a keyboard, where the LED indicators show warning signals to a user, and a screen shows connection instructions relating to the at least one pair of connecting terminals to the user relating to a desired calibration;
wherein the arrangement informs excessive heat within the arrangement with a warning indicator via the LED or via the screen; wherein the arrangement further comprises:
an accelerometer, which senses whether an inclination angle of the arrangement exceeds a threshold angle or whether the arrangement has tipped over to its side, and
a fan, wherein
the arrangement switches off the heating and cooling elements and turns on the fan.

### Claim 17

A non-transient computer memory with a computer program for calibrating a temperature sensor, the computer program comprising program code which is executable in a processor, wherein the computer program executes the steps of:
controlling an arrangement by the processor; where the arrangement comprises at least one pair of connecting terminals for connections to instruments or sensors to be measured, and the arrangement allows a temperature sensor to be placed in an insert for calibration;
performing heating and/or cooling of a desired part of the arrangement by a heating and cooling unit comprising at least one heating and cooling element, when desired;
wherein the computer program further executes the steps of:
performing at least one operation and/or measurement and/or generation by a multifunctional process calibrator, where the multifunctional process calibrator is performing operations, measurements and generations concerning at least two different quantities taken from a group of voltage, current, pressure, temperature, frequency, and resistance; wherein
the heating and cooling unit and the multifunctional process calibrator are integrated in a single housing forming the arrangement;
wherein the arrangement comprises a user interface, comprising LED indicators, a screen, and a keyboard, where the LED indicators show warning signals to a user, and a screen shows connection instructions relating to the at least one pair of connecting terminals to the user relating to a desired calibration;
wherein the arrangement informs excessive heat within the arrangement with a warning indicator via the LED or via the screen; wherein the arrangement further comprises:
an accelerometer, which senses whether an inclination angle of the arrangement exceeds a threshold angle or whether the arrangement has tipped over to its side, and
a fan, wherein
the arrangement switches off the heating and cooling elements and turns on the fan.
