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Automatic Temperature Verification & Calibration System
The IQS-AT Fully Automatic Temperature Verification System is an automated verification system for resistance temperature detectors (RTDs) and thermocouples, integrating temperature control systems, automatic testing technology and computer technology.
Centered on computer-based verification software, the system uses a precision constant-temperature water bath, a precision constant-temperature oil bath and a thermocouple verification furnace as temperature sources, together with a high-precision digital multimeter (6.5-digit / 7.5-digit) and a low-potential scanner switch.
It features automatic temperature control, automatic verification, automatic data storage and processing, and automatic certificate printing. The complete system enables fully automatic verification and calibration of various thermocouples, RTDs, temperature transmitters, expansion thermometers, temperature indicating controllers, temperature switches and other temperature instruments.


Product detail

The IQS-AT Fully Automatic Temperature Verification Systemis an automated verification system for resistance temperature detectors (RTDs) and thermocouples, integrating temperature control systems, automatic testing technology and computer technology.
Centered on computer-based verification software, the system uses a precision constant-temperature water bath, a precision constant-temperature oil bath and a thermocouple verification furnace as temperature sources, together with a high-precision digital multimeter (6.5-digit / 7.5-digit) and a low-potential scanner switch.
It features automatic temperature control, automatic verification, automatic data storage and processing, and automatic certificate printing. The complete system enables fully automatic verification and calibration of various thermocouples, RTDs, temperature transmitters, expansion thermometers, temperature indicating controllers, temperature switches and other temperature instruments.

Key System Features

  1. Multi-channel simultaneous verification and calibration— improves work efficiency

  2. Automatic temperature control, automatic verification, automatic data processing, automatic certificate printing

  3. Simple operation— reduces labor intensity and improves verification quality

  4. Streamlined design— convenient wiring, simple and elegant appearance

Main Technical Parameters

  1. Low-potential scanner switch:Parasitic electromotive force ≤ 0.4 μV

  2. Temperature sources:

    • For RTD verification: Temperature variation of constant-temperature water / oil baths ≤ 0.04 °C / 10 min

    • For thermocouple verification: Temperature variation rate of thermocouple verification furnace ≤ 0.2 °C / min

  3. Constant-temperature water bath temperature field:

    • Horizontal temperature field ≤ 0.01 °C

    • Vertical temperature field ≤ 0.01 °C

  4. Constant-temperature oil bath temperature field:

    • Horizontal temperature field difference ≤ 0.01 °C

    • Vertical temperature field difference ≤ 0.02 °C

  5. Thermocouple verification furnace:

    • Uniform temperature zone length ≥ 40 mm

    • Temperature field difference ≤ 0.8 °C

    • Temperature field deviation from geometry ≤ 10 mm

    • Temperature gradient: ≤ 0.4 °C/cm within ±20 mm of the temperature zone

  6. High-precision digital multimeter:KEITHLEY K2000 6.5-digit / K2010 7.5-digit high-precision digital multimeter with excellent stability

  7. Verification time:Approximately 20 minutes per verification point

Main Verification Objects

  • RTDs:Pt100, Pt10, Cu50, Cu100 and other types — 2-wire, 3-wire and 4-wire configurations

  • Thermocouples:K, E, J, N, B, S, R, T and other types of working thermocouples — automatic verification

  • Others:Digital temperature indicating regulators, industrial process measurement recorders, etc.

Compliance with Major Verification Regulations / Specifications

  • JJF 1908-2021 Calibration Specification for Bimetal Thermometers

  • JJG 229-2010 Verification Regulation of Industrial Platinum and Copper Resistance Thermometers

  • JJF 1637-2017 Calibration Specification for Base Metal Thermocouples

  • JJF 1262-2010 Calibration Specification for Sheathed Thermocouples

  • JJF 1909-2021 Calibration Specification for Pressure Thermometers

  • JJG 874-2007 Verification Regulation of Temperature Indicating Controllers

  • JJF 1183-2007 Calibration Specification for Temperature Transmitters

  • …and more

System Configuration

表格
NameModelSpecifications
High-precision Digital MultimeterK2000 / K20106.5-digit / 7.5-digit, high accuracy, excellent stability
Constant-temperature Water BathIQS10Temperature range: (-10 ~ 105) °C; Temperature field: horizontal ≤ 0.01 °C, vertical ≤ 0.01 °C; Medium: antifreeze
Constant-temperature Oil BathIQS300Temperature range: (90 ~ 300) °C; Temperature field: horizontal ≤ 0.01 °C, vertical ≤ 0.02 °C; Medium: imported dimethyl silicone oil
Thermocouple Verification FurnaceIQS1200Temperature range: (300 ~ 1200) °C; Uniform temperature zone ≥ 40 mm; Temperature field difference ≤ 0.8 °C; Deviation from geometry ≤ 10 mm; Temperature gradient ≤ 0.4 °C/cm within ±20 mm
Low-potential Scanner SwitchIQS-AT-2Parasitic electromotive force ≤ 0.4 μV
Secondary Standard RTDWZPB-2(0 ~ 420) °C
Primary Standard ThermocoupleWRPB-1Type S
Automatic Verification & Calibration SoftwareIQS-AT-1Enables automatic temperature control, automatic verification, data processing, data analysis, certificate storage and editing, certificate printing, supports electronic signatures, generates verification/calibration certificates or records compliant with national standards, supports Excel and PDF data export
Computer / PrinterDELL / HPData processing
Ice Point Reference BathIQS-AT-3Thermocouple reference junction compensation, 0 °C accuracy ±0.1 °C; stability ±0.02 °C / 10 min
Compensation WiresType K, Type E10 meters each for Type K and Type E
Thermocouple WelderTL-WLEDFor welding thermocouple compensation wires; power supply AC 220V; welding thickness 0.1–3 mm
Other Accessories—Glass tubes 400 mm long (one set each of Φ10 / Φ16), 2 corundum tubes, one set of test leads, one set of communication cables


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