Introduction
DTMC-mk301 high-precision thermometer is a new generation of multi-channel super thermometer specially developed for the field of temperature measurement calibration and precision temperature measurement. It highly integrates high-accuracy electrical measurement technology, intelligent interaction technology, and industry needs, and comprehensively solves the measurement and calibration needs of laboratory and field temperature sensors.
The DTMC-mk301 can measure RTDs, thermocouples, thermistors, temperature transmitters, humidity sensors, DC current and DC resistance, and DC voltage signals. Support ITS-90 temperature scale and ITC60751 standard, built-in thermal conversion software, support sensor parameter management and intelligent sensor management function, in electric power, petrochemical, measurement, metallurgy, biology, pharmaceutical, scientific research work has a wide range of uses, it is ideal for temperature measurement calibration field.
Product characteristics
n mK grade precision thermometer
n Resolution of 0.0001℃
n Accuracy (at 0℃ for SPRT) of 7ppm
n Sampling rate is up to 1S once
n All solid state design, no bridge transformer and relay
n Front panel quick connector design / Rear panel terminal design
n 3 input channels (CH 1 / CH2 / CH3)
n Support double standard platinum, double standard thermocouple
n Support resistance (Pt / Cu / Ni) (Pt 25 / Pt 100 / Cu X / NiX)
n Support for thermocouple (K / N / J / E / T / R / S / B / We3 / We5)
n Support for thermistor (0-400K)
n Support temperature transmitter (0-20 mA / 4-20 mA)
n The RTD supports automatic current switching, eliminating the EMF thermal potential error
n RTD supports two-line, three-line and four-line sensors
n Thermocouple cooling point compensation is available in various ways (built-in compensation / external compensation / fixed compensation)
n Support for multiple conversion formulas (ITS-90 / Callendar-Van Dusen / IEC60751-2008 / polynomial / Stein-Hart / B value / linearity)
n Standard device management function, can support 100 sets of sensor parameters
n The parameter editing function improves the measurement accuracy of the sensor
n Smart sensor function
n Built-in thermal treasure book calculator
n Built-in ITS-90 fixed-point information
n Automatic data statistics (maximum / minimum / mean / peak / standard deviation / volatility, etc.)
n With 5 display modes, it can display probe information, measurement statistics or differences between measurements, temperature trends
n Record with time-labeled data
n 8G built-in storage space / external U disk to store data
n Curves are displayed in real time
n Support for SCPI communication protocol (RS232 / WLAN)
n 7-inch HD touch screen
n Overall size:270mm(L) x 260mm(W) x 142mm(H)
Temperature indicators | |||||
Type | Indexing number | Temperature range | Accuracy | ||
Standard platinum resistance(SPRT) | PT25 | -189℃~961℃ | ±0.006℃(@0℃) | ||
Thermal resistance(PRT) | PT100 | -189℃~961℃ | ±0.003℃(@0℃) | ||
Thermocouple(TC) | K | -270℃~1370℃ | ±0.08℃(@600℃) | ||
N | -270℃~1300℃ | ±0.08℃(@600℃) | |||
J | -210℃~1200℃ | ±0.08℃(@600℃) | |||
E | -210℃~1000℃ | ±0.08℃(@600℃) | |||
T | -270℃~400℃ | ±0.05℃(@200℃) | |||
R | -50℃~1760℃ | ±0.25℃(@1000℃) | |||
S | -50℃~1760℃ | ±0.25℃(@1000℃) | |||
B | 250℃~1820℃ | ±0.30℃(@1000℃) | |||
Note: Sensor itself deviations are not included | |||||
Functional parameters | |||||
Parameter | Indexes | ||||
Number of channels | 3 | CH1 and CH2 front-facing,CH3 rear-facing | |||
Input | CH1 / CH2 | TC / PRT | |||
CH3 | Electric current | ||||
Input connector | PRT (front panel) | Lemo EPG.1B.306.HLN 6-pin connector | |||
PRT (rear panel) | 4mm Low thermal terminal posts | ||||
TC | Mini thermocouple connector(ASTM E 1684-05) | ||||
Drive current | SPRT/PRT | 1mA(±0.1%)(automatic reversing) | |||
Cold junction compensation | Built-in cold junction compensation CH1 and CH2 are cold-junction compensation for each other Cold-junction compensation temperature can be entered | ||||
Cold junction compensation accuracy | ±0.1℃ | ||||
Intelligent sensors | SPRT/PRT | Support | |||
Number of sensors managed | 100 pieces | ||||
Data storage capacity | 8G | ||||
Convert formulas | ITS-90 IEC60751(2008), Callendar-van Dusen Steinhart-Hart, B value, polynomial | ||||
Support for sensors type | Thermal resistance | SPRT:PT25、PT100 PRT:PT100、PT1000、PT-X Copper resistance CU50、CU100、CU-X Nickel resistance NI50、NI120、NI1000 | |||
Thermocouple | Standard thermocouples R、S、B Industrial thermocouples K、N、J、E、T、R、S、B、We3 、We5 | ||||
Display screen | 7 inch color touch screen | ||||
Interface port | USB | Support (USB stick storage data /firmware upgrade) | |||
Network port | Support | ||||
RS-232 | 2 ports | ||||
Power supply | 115V±10% and 230V±15% Switchable 47~63HZ | ||||
Power | 25W | ||||
Temperature and humidity conditions | Storage environment requirements | -10℃~50℃,Relative humidity less than 75%RH (non-condensing) | |||
Operating environment requirements | 15℃~30℃,Relative humidity less than 75%RH (non-condensing) | ||||
Calibration environment requirements | 20℃±1℃,Relative humidity less than 40%RH (non-condensing) |
Electrical measurement indicators | ||||
Channel type | Measuring range | Input range | Resolution | Accuracy(1 year) |
Standard platinum resistance(SPRT) | 120Ω | 0Ω~125Ω | 0.01mΩ | 30ppm+5ppm |
Thermal resistance(PRT) | 400Ω | 0Ω~410Ω | 0.01mΩ | 30ppm+5ppm |
Thermal resistance(PRT) | 4KΩ | 0Ω~4.1KΩ | 0.1mΩ | 30ppm+6ppm |
Thermocouple(TC) | 100mV | 0mV~115mV | 10nV | 60ppm+20ppm |
Transmitter | 25mA | 0mA~30mA | 0.001mA | 0.02% |
Note: the ambient temperature 20℃±1℃ |