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mK High Precision Thermometer

Product Features

Accuracy (at 0℃ for SPRT) of 7ppm

Support double Standard platinum resistance thermometer

Support double Standard Platinum 10-Platinum Heatpot

Support for thermistor,temperature transmitter

Built-in ITS-90 fixed-point information

Model Selection

DTSW-01G
DTSW-02G
DTSW-lcG

DTMC-2G
DTMC-4G
DTMC-6G
DTMC-8G

DTMC-mK301-PRTG
DTMC-mK301G
DTHPA-mK301G

DTS-180BG-mt
DTS-300BG-mt

DTS-10BG
DTS-20BG
DTS-30BG
DTS-40BG / DTS-95BG / DTS-125BG

DTS-180BG
DTS-300BG

DTW-560BG
DTW-560G
DTW-670G

DTG-140G
DTG-150G

DTG-450G
DTG-660G

DTG-1000G
DTG-1200G

DT-ETC-150G
DT-ETC-400G

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Description

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Introduction

mK301 high precision thermometer is a new generation of multi-channel super thermometer developed for the field of temperature measurement and calibration and precision temperature measurement. It integrates high-accuracy electrical measurement technology, intelligent interactive technology and industry needs to fully solve the measurement and calibration needs of laboratory and field temperature sensors.

mK301 high precision thermometer can measure RTD, thermocouples, thermistors, temperature transmitters, DC current and DC resistance, and DC voltage signals. It supports ITS-90 temperature scale and IEC60751 standard, has built-in thermal conversion software, supports sensor parameter management and intelligent sensor management functions, and has a wide range of uses in power, petrochemical, measurement, metallurgy, biopharmaceuticals, scientific research and other work. It is an ideal choice in the field of temperature measurement and calibration.

Features

1. mK class Precision Measurement

Resolution 0.0001℃;

Accuracy（SPRT/0℃）7ppm.

2.Channels and Sensors

3 input channels (CH1/CH2/CH3).
Support 2 standard platinum resistances,2 standard thermocouples.
Support thermal resistors(Pt/Cu/Ni) (Pt25/Pt100/CuX/Nix).
Support thermocouples (K/N/E/J/S/R/B/We3/We5).
Support thermistors (0-40K).
Support temperature transmitters (0-20mA/4-20mA).
RTD supports Automatic current reversing, eliminating EMF thermoelectric potential errors.

3.Thermocouple cold junction compensation

Supports multiple options

(built-in compensation/externalcompensation/fixed compensation).

4.Various conversion formulas

ITS-90/Callendar-Van Dusen/IEC60751-2008/multinomial

/Sein-Hart/B value/Linear.

5.Smart sensor functiont

After the sensor is inserted into the thermometer, it Automatically recognizes and uploads data

6.Sensor management function

Supports management of 100 sensor data:The inspection certificate values of the standard device (standard thermocouple, standard platinum resistance) can be directly stored in the thermometer. When the standard device is connected, the certificate value is Automatically brought in for calculation, and the electrical signal and temperature results are displayed synchronously.

Sensor data can be edited directly on the thermometer or through computer software.

Sensor data can be imported/exported via USB flash drive.

7.Smart junction box function

Supports storage and Automatic upload of standard platinum resistance certificate values, plug and play, no need to manually enter the certificate.

8.Data Recording,Storage Function

Data recording with time stamp.
8G built-in storage space, supports external USB storage.
Supports SCPI communication protocol (RS232/WLAN).
Screenshot function: All interfaces support screenshot function, test data does not need to be recorded on site.

9.Main interface display mode

There are 5 display modes:

Single channel, dual channel, three channels, curve, table.

The single channel interface can display sensor type, temperature value, electrical signal value, maximum temperature value, minimum temperature value, average temperature value, and peak-to-peak value. The peak-to-peak value can be used to measure the fluctuation of the constant temperature source, and the peak-to-peak value statistical period can be set (5min/10min/30min, etc.). At the same time, the standard deviation, sampling rate, sampling period, temperature curve, etc. are displayed.
The dual channel interface displays the measurement results of the two channels CH1 and CH2 at the same time. When the thermocouple is connected, the cold end compensation temperature will be displayed.
The three channel interface displays the measurement results of the three channels CH1/CH2/CH3 at the same time.

CH3 can display the measurement results or be set to the difference between CH1 and CH2 without manual calculation.

The curve display interface can display the temperature curve of the three channels and the built-in cold end compensation, and supports functions such as zooming, screenshots, and one-click clearing of data.

The table interface displays the electrical measurement value and temperature value at the same time, which is convenient for viewing the original data.

10.Thermal Calculator

1. Built-in Dearto thermal calculator;

2. Built-in ITS-90 fixed point information.

Product Selection Sheet

Model	DTMC-mK301G-PRT	DTMC-mK301G	DTHPA-mK301G
Multi-channel temperature meter	●	●	●
DC multimeter			●
Sensor testing		●
SPRT/RTD Measurement	●	●	●
RTC/TC Measurement		●	●
Transmitter	●	●	●
Thermistor Measurement	●	●	●
Temperature switch test		●
Constant temperature source test	●	●	●
Electronic scanning switch	●	●	●
Smart Sensors	●	●
Smart Junction Box	●	●
Thermal Calculator	●	●	●
Sensor Management	●	●	●
Data storage	●	●	●
Smart Communications	●	●	●

Technical Parameters

Electrical test indicators
Channel Type	Range	Input range	Resolution	Accuracy（1 year）
SPRT	120Ω	0Ω～125Ω	0.01mΩ	15ppm +3ppm	30ppm +5ppm
PRT	100Ω	0Ω～110Ω	0.01mΩ	15ppm +3ppm	30ppm +5ppm
PRT	400Ω	0Ω～410Ω	0.01mΩ	15ppm +3ppm	30ppm +5ppm
PRT	4KΩ	0Ω～4.1KΩ	0.1mΩ	30ppm +6ppm	30ppm +6ppm
TC	30mV	0mV～35mV	10nV	40ppm +20ppm	60ppm +20ppm
TC	100mV	0mV～115mV	10nV	40ppm +20ppm	60ppm +20ppm
Transmitter	25mA	0mA～25mA	0.001mA	0.02%	0.02%
Applicable Models	/			DTMC-mK301GH	DTMC-mK301G
Remarks : The test environment temperature specification conditions are 1 hour warm-up time; The environment temperature is 20℃±1℃; The environment relative humidity is 40%RH.

Temperature index
Type	Graduation	Temp.range	Accuracy
SPRT	Pt25	-189℃～961℃ -200℃～660℃	0.006℃(@-200℃) 0.006℃(@0℃) 0.015℃(@100℃) 0.020℃(@300℃) 0.030℃(@600℃)
PRT	Pt100	-189℃～961℃ -200℃～740℃	0.003℃(@-200℃) 0.003℃(@0℃) 0.015℃(@100℃) 0.020℃(@300℃) 0.030℃(@600℃)
TC	K	-270℃～1370℃ -100℃～1300℃	0.06℃(@600℃) 0.09℃(@1000℃)
	N	-270℃～1300℃ -200℃～1300℃	0.05℃(@600℃) 0.08℃(@1000℃)
	J	-210℃～1200℃ -100℃～900℃	0.03℃(@300℃) 0.05℃(@600℃)
	E	-210℃～1000℃ -90℃～700℃	0.02℃(@300℃) 0.05℃(@600℃)
	T	-270℃～400℃ -150℃～400℃	0.02℃(@300℃)
	R	-50℃～1760℃ 0℃～1760℃	0.1℃(@300℃) 0.1℃(@600℃) 0.09℃(@1000℃)
	S	-50℃～1760℃ 0℃～1760℃	0.1℃(@300℃) 0.1℃(@600℃) 0.09℃(@1000℃)
	B	250℃～1820℃ 300℃～1800℃	0.12℃(@1000℃) 0.1℃(@1500℃)
Note: Does not include the sensor's own deviation.

Function Parameters

General technical indicators
Screen	7-inch high-definition touch screen
Resolution	Temp.：(0.1～0.00001℃ optional)
Resolution	Electrical testing：0.01mΩ;10nV
Number of channels	Front panel:2 Channels； Rear panel:3 Channels；
Data storage capacity	Built-in 8G storage, all stored data are time-stamped
Communication interface	COM2
Language	Chinese, English
Power supply requirements	110V±10%；220V±10% AC voltage shift pulley
Product size	270mm×260mm×145mm
Weight	Weighing of single host (3.39Kg), host + accessories (4.32Kg), host + accessories + packaging (6.93Kg), junction box (0.15Kg)

Function Parameters

Function parameters
Function	Type	Description
Channels	3	CH1 & CH2 in front，CH3 in rear
Input	CH1/CH2	TC/RTD
Input	CH3	Current
Input Connectors	Thermal resistor (front panel)	Lemo EPG.1B.306.HLN 6-pin connector
	Thermal resistor (rear panel)	4mm Low thermal binding posts
	TC	Mini Thermocouple Connectors(ASTM E 1684-05)
Drive current	SPRT/PRT	1mA(±0.1%)(Automatic reversing)
Cold Junction Compensation		Built-in cold junction compensation CH1&CH2 Can be used as cold end compensation for each other. Cold junction compensation temperature can be input.
Cold junction compensation accuracy		±0.1℃
Smart Sensors	SPRT/PRT	Support
Sensor Management Quantity		100 Pcs
Sensor Management	Conversion formula	ITS-90 IEC60751(2008), Callendar-van Dusen Steinhart-Hart, polynomial B Value Multinomial
Supported sensor types	RTD	SPRT Pt25、Pt100 Platinum resistance Pt100、Pt1000、Pt-X Copper resistor Cu50、Cu100、Cu-X Nickel resistor Ni50、Ni120、Ni1000 Thermistor：（0-40K）
	TC	Standard Thermocouple B、S Industrial Thermocouples K、N、J、E、T、R、S、B、WRe3 、WRe5
	Transmitter	Temperature transmitter：（0-20mA/4-20mA）

Application Accessory

Overview:

The Automatic test of the DTMC-mK301-WK electronic scanning switch is mainly used for switching and collecting the signals of thermal resistance and thermocouple temperature sensors.

It is suitable for industrial scenarios that require batch multi-point temperature measurement. With its excellent performance and unique functions, the DTMC-mK301-WK scanning switch device provides an efficient and accurate solution for the rapid switching and data reading of multi-channel temperature signals.

It can achieve the manual/ Automatic switching and data reading of multi-channel and multi-type temperature signals. When used in conjunction with the mK301 high-precision thermometer, the electrical measurement and temperature data of the channels can be viewed in real time and synchronously displayed on the touch screen interface of the thermometer.

Automatic Test System for Thermal Resistance:

DTMC-mK301G-WK electronic scanning switch device is deeply integrated with the mK301G high-precision thermometer, and together with the standard device and the constant temperature source, it forms a complete two/three/four-wire resistance measurement system. This system supports flexible manual/Automatic dual-mode operation, adapting to the needs of different detection scenarios; it synchronously displays the resistance electrical measurement value and the corresponding temperature value in real time, and completes accurate conversion through the built-in algorithm. All data are directly presented on the main interface of the mK301G, achieving efficient processing of the whole process from signal collection to result analysis.

Automatic Test System for Thermocouple:

DTMC-mK301G-WK scanning switch device is deeply integrated with the mK301G high-precision thermometer, and together with the standard device, the constant temperature source, the reference junction thermostat and the Pt100 sensor, it forms a complete thermocouple measurement and calibration system. This system supports the signal detection of the full series of S/R/B/K/N/J/E/T/We3/We5 type thermocouples, can Automatically complete the real-time conversion of the electrical measurement value/temperature value, and synchronously display it on the main interface of the mK301G, realizing the Automatic processing of the whole process from signal collection to result output, and ensuring the requirements for high-precision and multi-type temperature measurement.

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