Product Introduction

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SPMK3000The intelligent thermal instrument calibration system (fully automatic temperature calibration system) consists of a computer, printer, high-precision digital measuring table, low potential scanning switch, temperature controller, oil tank, water tank, tube furnace, junction panelRS232-RS485The automatic testing and control system composed of interfaces is a new intelligent measurement standard device that integrates computer technology, micro electrical measurement technology, and automatic testing technology. It is used to automatically calibrate various working thermocouples and thermistors, and with appropriate software, can assist in the calibration of temperature secondary instruments and expansion thermometers. The verification procedure and results comply with the relevant current metrological verification regulations.

The system has a series of outstanding features such as advanced design, reasonable structure, complete software functions, easy operation, beautiful and generous interface, accurate and reliable value transmission, strong anti-interference ability, and flexible use. The verification software and core hardware in the system are independently developed by our company.

The main characteristics of the verification function

◆VerifiableS、R、B、K、N、J、E、TShort typeSShort typeREqually divided thermocouple（ⅠLevelⅡGrade andTtypeⅢGrade). Temperature point calibration, in addition to automatically providing default temperature points through the program, also allows users to set their own temperature range1-8A checkpoint.300℃When calibrating thermocouples, second-class standard platinum resistors can be used instead of second-class standard glass thermometers to achieve automatic calibration.

◆Can calibrate glass liquid thermometers, bimetallic thermometers, pressure thermometers, etc.

◆Can verify two-wire, three wire, and four wire systemsPt10、Pt100、Cu50、Cu100Thermal resistance（A、B、CGrade).

◆standard configuration3Temperature control equipment of different models, oneTaiwan Inspection Furnace1Oil tank1Taiwan sink,Can be separately located300℃～1200℃, ninety℃～300℃，-10℃～105℃Scope ensures that each constant temperature device can achieve the best temperature control effect in different temperature zones.

◆When testing thermal resistors and hot spot couples, they can be grouped for testing, with a maximum processing capacity of one batch10The group is inspected (the maximum number of inspections per group is related to the number of matching scanning switches). During the inspection process, any group can be inspected at any set inspection point according to the situation, which can improve work efficiency when the inspection quantity is large.

◆The verification result system automatically determines whether the verification result is qualified or not, and the calibration result provides a satisfactory or ideal result.

Technical Parameter

Specification

◆water tank:(-10～105)℃ (medium: antifreeze) note: standard configuration;

◆Oil tank:(90～300)℃ (medium: dimethyl silicone oil);

◆Tube type verification furnace:（300～1200）℃；

◆Verification object: ① Industrial thermocouple:S、R、B、K、E、J、N、T② Industrial hot spot resistance:pt10、pt100、Cu50、Cu100③ Temperature gauges: mercury thermometer, pressure thermometer, bimetallic thermometer;

◆Accuracy level:0.01Grade;

◆Resolution:0.1μV0.1mΩ；

◆Scanning switch parasitic potential:<0.4μV；

◆Temperature control accuracy: superior to±3℃ (tube type verification furnace); be better than±1℃ (water, oil tank);

◆Compensation range of thermocouple reference terminal:5～50℃ (resolution)0.1℃）；

◆Thermocouple calibration furnace control capability:220V、0～16A(can be expanded as needed);

◆Temperature control stability: Constant temperature is better than0.2℃/10min(Tube type verification furnace)0.04℃/10min(Water and oil tank), horizontal temperature field:≤0.01℃, vertical temperature field:≤0.02℃；

◆Measurement stability: measurement is superior to0.1℃/1min(Tube type verification furnace)0.02℃/1min(Water and oil tank);

◆Total uncertainty of verification result: less than0.7℃ (thermocouple), less than0.05℃ (thermal resistance);

◆One verification/Calibration quantity:10Support (maximum).

Verification regulations and calibration standards implemented

JJG75-1995Standard Platinum Rhodium10-Verification Regulations for Platinum Thermocouples

JJG115-1999Standard Copper-Verification Regulations for Copper Nickel Thermocouples

JJG130-2011 "Verification Regulations for Working Glass Liquid Temperature Meters"

JJG141-2013 "Verification Regulations for Precious Metal Thermocouples Used in Work"

JJG229-2010Verification Regulations for Industrial Platinum and Copper Thermistors

JJG368-2000Copper for Work-Verification Regulations for Copper Nickel Thermocouples

JJF1098-2003Calibration Specification for Thermocouples and Thermistors Automatic Measurement Systems

JJF1183-2007Calibration Specification for Temperature Transmitters

JJF1262-2010Calibration Specification for Armored Thermocouples

JJF1637-2017Calibration Specification for Low Cost Metal Thermocouples

JJF1908-2021Calibration Specification for Bimetallic Thermometers

JJF1909-2021Calibration Specification for Pressure Thermometers

systems software

The verification system software runs in ChineseWindowsThe measurement and control software for the environment includes three main parts: thermocouple calibration, thermal resistance calibration (including integrated temperature transmitters), and temperature secondary instrument calibration (optional).

The functions of the system software

◆The verification system software can be installed in ChineseWin7/Win8/Win10Wait for the operating system to run.

◆The relevant parameters of the verification process can be displayed in various tables on the verification interface, which is intuitive and visually distinctive.

◆The temperature control process of the constant temperature equipment automatically draws a temperature curve (temperature)—Time relationship curve). It has an automatic temperature stability countdown function, which can automatically collect data and switch to the next working point.

◆The calibration data and recorded curves can be saved in file form on the hard drive,Automatic storage of calibration data in the database,Can be queried, counted, and printed at any time.

◆Verification records can be repeated multiple times or checked in batches, which can greatly improve work efficiency.