DTMC Six-Channel Precision Thermometer Readout
Introduction
The DTMC six-channel precision thermometer readouts are modular, multi-channel temperature measurement instruments available in 2, 4, 6, or 8 channel configurations. Each channel can be freely configured with either RTD, thermocouple, or thermistor input modules. This system is characterized by high accuracy, broad sensor compatibility, and extensive functionality. The devices support both wired and wireless connectivity to PCs or mobile terminals. They are ideal for applications such as:
· Temperature uniformity testing in calibration baths
· Furnace uniformity verification for thermocouples
· Dry-block calibrator testing
This makes the DTMC six-channel precision thermometer readouts an excellent choice for metrology laboratories, calibration facilities, and research environments.
Functions & Features
A wide range of temperature sensors are supported, including standard and industrial RTDs and thermocouples.
Multiple data formats are available for storage and output, including voltage, resistance, or temperature.
RTD sensor parameters are editable and customizable to suit different applications.
Independent sampling is implemented by each channel; the modular architecture increases reliability and flexibility.
Each channel independently implements calibration and corrections using single-point, multi-point, segmented-linear, or least-squares fitting method.
2.4 GHz wireless connectivity to tablets or laptops isupported; real-time data are accessible via browser - no software installation required.
Multiple datasets are displayed, including historical, statistical, and graphical data.
Built-in encryption is supported for data security.
A cold junction sensor is dedicated per thermocouple channel, with accuracy better than ±0.1 °C.
Multiple cold junction compensation modes: fixed value, internal auto-compensation, and external compensation.
Communication via RS232 or wireless is supported; devices are compatible with PC or mobile terminals.
8 GB internal storage.
7-inch industrial-grade color touchscreen for intuitive operation.
Technical Parameters
Channel configuration
|
Model |
DTMC - 2G |
DTMC - 4G |
DTMC - 6G |
DTMC - 8G |
|
Channel number |
2 |
4 |
6 |
8 |
|
Channel optional function |
TC Thermal Resistance Thermistor |
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Channel technical indicators
|
Channel type |
Thermocouple |
RTD |
RTD |
|
Range |
100 mV |
100 Ω |
400 Ω |
|
Measurement range |
-20 mV to 100 mV |
0 Ω to 125 Ω |
0 Ω to 400 Ω |
|
Resolution |
0.1 μV |
0.1 mΩ |
0.1 mΩ |
|
Accuracy (at 20 ± 5 °C for 1 year) |
± (60 ppm + 20 ppm) |
± (30ppm + 5 ppm) |
± (30 ppm + 5 ppm) |
|
Temperature coefficient |
3 ppm |
1 ppm |
1 ppm |
|
Remarks:Accuracy is specified as ppm of ± (ppm of reading + ppm of full scale). Temperature coefficient applies outside the 15°C to 25 °C ambient range. |
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Temperature technical indicators
|
Sensor |
Type |
Measurement range (°C) |
Accuracy (°C) |
Resolution (°C) |
Sampling frequency (Hz) |
Data type |
|
Thermocouples |
K |
-200 to 1372 |
± 0.15 |
0.01 or 0.001 |
1 to 10 |
Voltage and temperature |
|
J |
-210 to 1200 |
± 0.10 |
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|
T |
-200 to 400 |
± 0.10 |
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|
E |
-200 to 1000 |
± 0.07 |
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|
N |
-270 to 1300 |
± 0.15 |
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|
B |
250 to 1820 |
± 0.30 at 1000 |
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|
R |
-50 to 1768 |
± 0.20 at 1000 |
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|
S |
-50 to 1768 |
± 0.25 at 1000 |
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|
RTDs |
Pt25 |
-189 to 961 |
± 0.003 at 0 |
0.0001 |
Resistance and temperature |
|
|
Pt100 |
-200 to 950 |
± 0.005 at -100 ± 0.006 at 0 ± 0.008 at 300, ± 0.012 at 600 |
0.001 |
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|
Remarks: None of the above specifications include the inherent accuracy of the sensor itself. |
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General Technical Indicators
|
Power supply |
12V DC, 2A |
|
Communication |
RS232, Wireless |
|
Enclosure |
Aluminum alloy + ABS |
|
Dimensions (mm) |
230 × 140 × 100 |
|
Weight (kg) |
2 |
|
Operating environment |
5 to 35 °C, 0 to 85% RH |
|
Storage environment |
0 to 70 °C, 0 to 100% RH |
