DRAFT PD - 2025 08 13 - Precision Thermocouple Calibrator Simulator.docx

DOCX document 40 KB Posted Aug 14, 2025

Attached to: Precision Thermocouple Calibrator Simulator
Solicitation number: 26M-207A-TE
Issued by: Department of the Air Force Materiel Command Lifecycle Management Center Wright Patterson Air Force Base

About this file

Written by GovTribe AI · Aug 14, 2025

This document is a Draft Purchase Description for a Precision Thermocouple Calibrator-Simulator, issued by the Department of the Air Force Metrology Calibration Program (AFMETCAL). The device is required to source and simulate thermocouple output voltages for calibrating temperature measurement instruments, with specific technical requirements including the ability to input/output voltages from -11 to 11 VDC, support multiple thermocouple types (J, K, T, E, R, S, B, and N), and operate with high precision across extensive temperature ranges.

Key specifications include a portable design weighing no more than 15 pounds, dimensions not exceeding 16x16x6 inches, a rechargeable battery providing six hours of continuous operation, internal cold junction compensation, USB data communication, and a digital display. The instrument must meet stringent accuracy requirements for different thermocouple types, operate in temperatures from 32 to 122°F, include a carrying case, and come with a comprehensive operator's manual. The opportunity is currently a pre-solicitation/sources sought synopsis for market research, with no funds currently available, and both large and small businesses are encouraged to participate.

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26M-207A-TE

13 AUG 25

DRAFT

DRAFT PURCHASE DESCRIPTION

FOR

Precision Thermocouple Calibrator-Simulator

1.0 SCOPE: The Thermocouple Calibrator-Simulator can source and simulate the output voltage of thermocouples for the purpose of calibrating thermocouple thermometers, digital temperature read-out devices, or other millivolt measuring instruments. The Thermocouple Calibrator-Simulator should also be able to be used as a thermocouple thermometer. The Thermocouple Calibrator-Simulator shall be portable so it can be moved to various locations for calibration purposes. The Thermocouple Calibrator-Simulator will include a battery.

2.0 PERFORMANCE REQUIREMENTS:

2.1 Operations: The Thermocouple Calibrator-Simulator shall input and output the full range of thermocouples and voltages from -11 to 11 VDC. It shall be portable and have the capability to run on battery power and be transported in a provided case. It shall have internal cold junction compensation.

2.2 Units: The Thermocouple Calibrator-Simulator shall be able to display and operate with at least the following engineering units:

2.2.1 Temperature: C & F

2.2.2 Voltage: V & mV

2.3 Resolution: The Thermocouple Calibrator-Simulator shall have, as a minimum, at least 0.1°C or 0.1°F resolution for temperature units and 0.1 microvolt (µV) for DC voltage units.

2.4 Thermocouple Types: The instrument, as a minimum, shall be able to simulate and measure (output and input) these types of thermocouples: J, K, T, E, R, S, B, and N. Thermocouple types shall conform to NIST Monograph 175 (ITS-90).

2.5 Thermocouple Ranges and Accuracies: The Thermocouple Calibrator-Simulator shall meet or exceed the following ranges and accuracies for both input and outputs of thermocouple temperatures in the table below. The accuracy must include internal cold junction compensation and be based on a one-year calibration interval.

Type

Range

Accuracy

-210 to -180C

±0.12 °C

-180 to -120 °C

±0.10 °C

-120 to -50 °C

±0.08 °C

-50 to 1200 °C

±0.07 °C

-270 to -255 °C

±2.20 °C

-255 to -195 C

±0.70 °C

-195 to -115 °C

±0.12 °C

-115 to -55 °C

±0.09 °C

-55 to 1000 °C

±0.07 °C

1000 to 1372 °C

±0.08 °C

-270 to -255 °C

±1.80 °C

-255 to -240 °C

±0.49 °C

-240 to -210 °C

±0.30 °C

-210 to -150 °C

±0.18 °C

-150 to -40 °C

±0.12 °C

-40 to 100 °C

±0.08 °C

100 to 400 °C

±0.07 °C

-270 to -245 °C

±1.20 °C

-245 to -195 °C

±0.18 °C

-195 to -155 °C

±0.10 °C

-155 to -90 °C

±0.08 °C

-90 to 15 °C

±0.07 °C

15 to 890 °C

±0.06 °C

890 to 1000 °C

±0.07 °C

-50 to -30 °C

±0.65 °C

-30 to 45 °C

±0.55 °C

45 to 160 °C

±0.40 °C

160 to 380 °C

±0.30 °C

380 to 775 °C

±0.26 °C

775 to 1768 °C

±0.22 °C

-50 to -30 °C

±0.62 °C

-30 to 45 °C

±0.56 °C

45 to 105 °C

±0.40 °C

105 to 310 °C

±0.33 °C

310 to 615 °C

±0.29 °C

615 to 1768 °C

±0.26 °C

250 to 350 °C

±0.95 °C

350 to 445 °C

±0.74 °C

445 to 580 °C

±0.58 °C

580 to 750 °C

±0.45 °C

750 to 1000 °C

±0.37 °C

1000 to 1820 °C

±0.29 °C

-270 to -260 °C

±5.00 °C

-260 to -200 °C

±1.00 °C

-200 to -140 °C

±0.23 °C

-140 to -70 °C

±0.15 °C

-70 to 25 °C

±0.12 °C

25 to 160 °C

±0.10 °C

160 to 1300 °C

±0.09 °C

2.6 Voltage Range: The Thermocouple Calibrator-Simulator shall be able to input and output across a voltage range of at least -11 VDC to +11 VDC.

2.7 Voltage Accuracy: The Thermocouple Calibrator-Simulator shall have a voltage accuracy of at least ±(30 ppm + 2.5 µV) or better for the entire range in paragraph 2.6. This accuracy is for both output and input.

2.8 Warm-up: The Thermocouple Calibrator-Simulator shall meet all specifications contained in this purchase description after a warm-up time not to exceed 30 minutes.

3.0 FUNCTIONAL REQUIREMENTS:

3.1 Display: The screen shall display all critical control and measurement parameters that are essential to the operation of the Thermocouple Calibrator-Simulator. The display shall utilize easily-read fonts on a screen with high contrast between characters and background. Each parameter on the screen shall be easily identified and read. The display shall distinguish between ‘set points’ and ‘actual’ measured quantities. It shall be a digital display.

3.2 Front Panel Operation: The Thermocouple Calibrator-Simulator shall have controls or a touch screen on the front panel of the unit which shall provide access to all functions of the unit. Corresponding to the status of this switch, there shall be a visual indication on the front panel to show the presence of line and or battery power to the Thermocouple Calibrator-Simulator.

3.3 Data Logging: The Thermocouple Calibrator-Simulator shall have the capability of internally storing measurements with time and date stamps. The unit shall be able to store 8 hours or more of measurements, taken at 5 second intervals. This data logging capability shall have a variety of user selected logging intervals.

3.4 Internal Cold Junction: The Thermocouple Calibrator-Simulator shall have internal cold junction compensation that can be deactivated to allow for an external cold junction to be used.

3.5 Thermocouple Connections: The Thermocouple Calibrator-Simulator shall meet all input and output specifications in this purchase description through both binding posts and thermocouple connectors.

3.6 Communication Ports: The Thermocouple Calibrator-Simulator shall have a USB port for downloading data and communicating with the instrument.

4.0 MECHANICAL & PHYSICAL REQUIREMENTS:

4.1 Environmental Requirements: The Thermocouple Calibrator-Simulator shall be able to operate and be stored in the following environmental conditions without loss of required performance:

4.1.1 Temperature: 32 to 122 °F

4.1.2 Humidity: 10 to 90 %RH Non-condensing

4.2 Battery: The Thermocouple Calibrator-Simulator shall be supplied with a rechargeable internal battery pack. It shall provide power for a minimum of six hours of continuous operation without degradation of any performance specifications. The instrument shall be able to operate on line power while the battery pack is charging.

4.3 Carrying Case: The Thermocouple Calibrator-Simulator shall have a carrying case that can fit the battery and all ancillary equipment.

4.4 Dimensions: The Thermocouple Calibrator-Simulator shall have dimensions not to exceed 16 inches x 16 inches x 6 inches.

4.5 Weight: The Thermocouple Calibrator-Simulator shall weigh no more than 15 pounds.

4.6 Calibration Kit: Any special equipment, special limits thermocouple wire, connectors, tools, etc., required for calibration must be supplied with the Thermocouple Calibrator-Simulator.

4.7 Special Hardware/ Software/Licenses Requirements: Any special equipment, fixtures, tools, standards, etc., required to meet the requirements of this purchase description and not common to a secondary calibration laboratory must be supplied with the Thermocouple Calibrator-Simulator. Units that fail calibration and are recommended for alignment or adjustment, either manually or using automated alignment/adjustment software, shall include any special hardware, software, and software licenses needed to perform the alignment/adjustment process.

4.8 Construction: The Thermocouple Calibrator-Simulator shall be designed and constructed of materials that meet the requirements of this specification and in accordance with the best commercial practices for industry approved equipment. It shall be the contractor’s responsibility to assure the government that such design objectives as reliability, accuracy of operation, maintainability and ease of operation have been given due consideration in the manufacture of this equipment. All parts such as shafts, bearings, regulators, switches, controls, connectors, etc., shall have proper clearance and adjustments. They shall work together so that the equipment shall supply the rated requirements without unnecessary strains, vibrations, and overheating. They shall be able to withstand the conditions met in shipping, storage, installation, and services. All materials and parts of this equipment shall be capable of withstanding environmental testing requirements of this specification.

4.9 Individual Unique Identifier Designation: The Thermocouple Calibrator-Simulator shall be clearly labeled with a model number, serial number, and manufacturer’s name. Unique item identification labeling shall follow Item Identification and Valuation requirements as stated in the contract.

4.10 AC Power Rating: The power required to operate the Thermocouple Calibrator-Simulator shall be ~120 VAC at 50/60 Hz.

4.11 Electrical Protection: The Thermocouple Calibrator-Simulator shall have a fuse or circuit breaker to protect it in the event of excessive current of AC power. The AC line power fuses shall be user serviceable without removing any covers /panels or voiding a manufacturer’s service warranty.

4.11.1 Electrical Safety: Documentation shall be provided to support the means by which electrical safety considerations have been addressed. The safety of all personnel will be assured in conductive or nonconductive contact with the outside of the equipment, and during the changing of the fuse with the power to the system and its components are turned on. This documentation shall consist of a minimum of a citation of a UL or ANSI identified standard or equivalent United States Standard to which the equipment conforms.

4.12 Safety Data Sheets: All safety data sheets for all fluids and chemicals shall be provided.

4.13 Additional Hardware: Additional hardware required to make this system function as identified by this purchase description shall be required.

5.0 OPERATOR’S MANUAL: As stated in the data attachment, DD1423, and Data Item Descriptions, manuals shall include the following:

5.1 Individual Component Listings: The manual shall list the individual components which includes OEM manufacturer’s name, and OEM part number. If applicable, include component range and uncertainty.

5.2 Alignment Procedure: The manual shall have an alignment procedure for the temperature sensors, and any other component that may require periodic adjustment.

5.3 Remote Command Listings: The manual shall list the input/output parameters, command strings and other pertinent data required to accomplish remote operation of the Thermocouple Calibrator-Simulator.

5.4 Maintenance: The manual shall include preventative maintenance inspection procedures and intervals required for proper operation of the unit.

6.0 WARRANTY & TECHNICAL SUPPORT: A warranty and technical support normally offered by the vendor for this product shall be provided with the unit. The warranty shall last at least one year from delivery.

7.0 ENVIRONMENT, SAFETY, AND OPERATIONAL HEALTH: A combination of the system manual, other documentation, and/or the system itself shall identify potential environment, safety, and operational health hazards and how they are mitigated when the design itself cannot mitigate them. This will be accomplished through stating the hazard and accompanying mitigation through the use of safety devices, use of warnings, or use of special operational procedures to counter such hazards.

8.0 TESTING: The Thermocouple Calibrator-Simulator will be inspected and accepted at a destination specified elsewhere in this contract. The item will be checked with test equipment and parameters equal to or better than those required assuring specified performance requirements are met. Test equipment has first echelon certification directly traceable to the International System of Units through the National Institute of Standards and Technology (NIST) or other AFMETCAL approved sources where required. Test will be performed to assure the Thermocouple Calibrator-Simulator meets or exceeds all of the requirements of this purchase description. Such testing does not relieve the contractor of performing all inspections and quality control checks at the point of fabrication as necessary to assure performance as specified.

Attachment:

Data Requirements

File details come from the government source that posted it. Updated Aug 14, 2025.