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DTMC-mk 301 High precision thermometer
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)
Technical indicators
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℃ | ||||
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) |
||||
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